diff --git a/public/static/dicom/dicomViewPc1.html b/public/static/dicom/dicomViewPc1.html index 1cce70fb..9ce07853 100644 --- a/public/static/dicom/dicomViewPc1.html +++ b/public/static/dicom/dicomViewPc1.html @@ -5,14 +5,14 @@ 胶片预览 - - - - - + + + + + - - + + @@ -383,7 +383,7 @@
- + @@ -409,7 +409,7 @@
- +
  • 1x1
  • 1x2
    • diff --git a/public/static/dicom/js/cornerstone.js b/public/static/dicom/js/cornerstone.js new file mode 100644 index 00000000..e8a1a975 --- /dev/null +++ b/public/static/dicom/js/cornerstone.js @@ -0,0 +1,9084 @@ +/*! cornerstone-core - 2.6.1 - 2021-11-19 | (c) 2016 Chris Hafey | https://github.com/cornerstonejs/cornerstone */ +(function webpackUniversalModuleDefinition(root, factory) { + if(typeof exports === 'object' && typeof module === 'object') + module.exports = factory(); + else if(typeof define === 'function' && define.amd) + define("cornerstone-core", [], factory); + else if(typeof exports === 'object') + exports["cornerstone-core"] = factory(); + else + root["cornerstone"] = factory(); +})(window, function() { +return /******/ (function(modules) { // webpackBootstrap +/******/ function hotDisposeChunk(chunkId) { +/******/ delete installedChunks[chunkId]; +/******/ } +/******/ var parentHotUpdateCallback = window["webpackHotUpdate"]; +/******/ window["webpackHotUpdate"] = // eslint-disable-next-line no-unused-vars +/******/ function webpackHotUpdateCallback(chunkId, moreModules) { +/******/ hotAddUpdateChunk(chunkId, moreModules); +/******/ if (parentHotUpdateCallback) parentHotUpdateCallback(chunkId, moreModules); +/******/ } ; +/******/ +/******/ // eslint-disable-next-line no-unused-vars +/******/ function hotDownloadUpdateChunk(chunkId) { +/******/ var head = document.getElementsByTagName("head")[0]; +/******/ var script = document.createElement("script"); +/******/ script.charset = "utf-8"; +/******/ script.src = __webpack_require__.p + "" + chunkId + "." + hotCurrentHash + ".hot-update.js"; +/******/ ; +/******/ head.appendChild(script); +/******/ } +/******/ +/******/ // eslint-disable-next-line no-unused-vars +/******/ function hotDownloadManifest(requestTimeout) { +/******/ requestTimeout = requestTimeout || 10000; +/******/ return new Promise(function(resolve, reject) { +/******/ if (typeof XMLHttpRequest === "undefined") { +/******/ return reject(new Error("No browser support")); +/******/ } +/******/ try { +/******/ var request = new XMLHttpRequest(); +/******/ var requestPath = __webpack_require__.p + "" + hotCurrentHash + ".hot-update.json"; +/******/ request.open("GET", requestPath, true); +/******/ request.timeout = requestTimeout; +/******/ request.send(null); +/******/ } catch (err) { +/******/ return reject(err); +/******/ } +/******/ request.onreadystatechange = function() { +/******/ if (request.readyState !== 4) return; +/******/ if (request.status === 0) { +/******/ // timeout +/******/ reject( +/******/ new Error("Manifest request to " + requestPath + " timed out.") +/******/ ); +/******/ } else if (request.status === 404) { +/******/ // no update available +/******/ resolve(); +/******/ } else if (request.status !== 200 && request.status !== 304) { +/******/ // other failure +/******/ reject(new Error("Manifest request to " + requestPath + " failed.")); +/******/ } else { +/******/ // success +/******/ try { +/******/ var update = JSON.parse(request.responseText); +/******/ } catch (e) { +/******/ reject(e); +/******/ return; +/******/ } +/******/ resolve(update); +/******/ } +/******/ }; +/******/ }); +/******/ } +/******/ +/******/ var hotApplyOnUpdate = true; +/******/ // eslint-disable-next-line no-unused-vars +/******/ var hotCurrentHash = "4d8d88ba53621f59b9a9"; +/******/ var hotRequestTimeout = 10000; +/******/ var hotCurrentModuleData = {}; +/******/ var hotCurrentChildModule; +/******/ // eslint-disable-next-line no-unused-vars +/******/ var hotCurrentParents = []; +/******/ // eslint-disable-next-line no-unused-vars +/******/ var hotCurrentParentsTemp = []; +/******/ +/******/ // eslint-disable-next-line no-unused-vars +/******/ function hotCreateRequire(moduleId) { +/******/ var me = installedModules[moduleId]; +/******/ if (!me) return __webpack_require__; +/******/ var fn = function(request) { +/******/ if (me.hot.active) { +/******/ if (installedModules[request]) { +/******/ if (installedModules[request].parents.indexOf(moduleId) === -1) { +/******/ installedModules[request].parents.push(moduleId); +/******/ } +/******/ } else { +/******/ hotCurrentParents = [moduleId]; +/******/ hotCurrentChildModule = request; +/******/ } +/******/ if (me.children.indexOf(request) === -1) { +/******/ me.children.push(request); +/******/ } +/******/ } else { +/******/ console.warn( +/******/ "[HMR] unexpected require(" + +/******/ request + +/******/ ") from disposed module " + +/******/ moduleId +/******/ ); +/******/ hotCurrentParents = []; +/******/ } +/******/ return __webpack_require__(request); +/******/ }; +/******/ var ObjectFactory = function ObjectFactory(name) { +/******/ return { +/******/ configurable: true, +/******/ enumerable: true, +/******/ get: function() { +/******/ return __webpack_require__[name]; +/******/ }, +/******/ set: function(value) { +/******/ __webpack_require__[name] = value; +/******/ } +/******/ }; +/******/ }; +/******/ for (var name in __webpack_require__) { +/******/ if ( +/******/ Object.prototype.hasOwnProperty.call(__webpack_require__, name) && +/******/ name !== "e" && +/******/ name !== "t" +/******/ ) { +/******/ Object.defineProperty(fn, name, ObjectFactory(name)); +/******/ } +/******/ } +/******/ fn.e = function(chunkId) { +/******/ if (hotStatus === "ready") hotSetStatus("prepare"); +/******/ hotChunksLoading++; +/******/ return __webpack_require__.e(chunkId).then(finishChunkLoading, function(err) { +/******/ finishChunkLoading(); +/******/ throw err; +/******/ }); +/******/ +/******/ function finishChunkLoading() { +/******/ hotChunksLoading--; +/******/ if (hotStatus === "prepare") { +/******/ if (!hotWaitingFilesMap[chunkId]) { +/******/ hotEnsureUpdateChunk(chunkId); +/******/ } +/******/ if (hotChunksLoading === 0 && hotWaitingFiles === 0) { +/******/ hotUpdateDownloaded(); +/******/ } +/******/ } +/******/ } +/******/ }; +/******/ fn.t = function(value, mode) { +/******/ if (mode & 1) value = fn(value); +/******/ return __webpack_require__.t(value, mode & ~1); +/******/ }; +/******/ return fn; +/******/ } +/******/ +/******/ // eslint-disable-next-line no-unused-vars +/******/ function hotCreateModule(moduleId) { +/******/ var hot = { +/******/ // private stuff +/******/ _acceptedDependencies: {}, +/******/ _declinedDependencies: {}, +/******/ _selfAccepted: false, +/******/ _selfDeclined: false, +/******/ _disposeHandlers: [], +/******/ _main: hotCurrentChildModule !== moduleId, +/******/ +/******/ // Module API +/******/ active: true, +/******/ accept: function(dep, callback) { +/******/ if (dep === undefined) hot._selfAccepted = true; +/******/ else if (typeof dep === "function") hot._selfAccepted = dep; +/******/ else if (typeof dep === "object") +/******/ for (var i = 0; i < dep.length; i++) +/******/ hot._acceptedDependencies[dep[i]] = callback || function() {}; +/******/ else hot._acceptedDependencies[dep] = callback || function() {}; +/******/ }, +/******/ decline: function(dep) { +/******/ if (dep === undefined) hot._selfDeclined = true; +/******/ else if (typeof dep === "object") +/******/ for (var i = 0; i < dep.length; i++) +/******/ hot._declinedDependencies[dep[i]] = true; +/******/ else hot._declinedDependencies[dep] = true; +/******/ }, +/******/ dispose: function(callback) { +/******/ hot._disposeHandlers.push(callback); +/******/ }, +/******/ addDisposeHandler: function(callback) { +/******/ hot._disposeHandlers.push(callback); +/******/ }, +/******/ removeDisposeHandler: function(callback) { +/******/ var idx = hot._disposeHandlers.indexOf(callback); +/******/ if (idx >= 0) hot._disposeHandlers.splice(idx, 1); +/******/ }, +/******/ +/******/ // Management API +/******/ check: hotCheck, +/******/ apply: hotApply, +/******/ status: function(l) { +/******/ if (!l) return hotStatus; +/******/ hotStatusHandlers.push(l); +/******/ }, +/******/ addStatusHandler: function(l) { +/******/ hotStatusHandlers.push(l); +/******/ }, +/******/ removeStatusHandler: function(l) { +/******/ var idx = hotStatusHandlers.indexOf(l); +/******/ if (idx >= 0) hotStatusHandlers.splice(idx, 1); +/******/ }, +/******/ +/******/ //inherit from previous dispose call +/******/ data: hotCurrentModuleData[moduleId] +/******/ }; +/******/ hotCurrentChildModule = undefined; +/******/ return hot; +/******/ } +/******/ +/******/ var hotStatusHandlers = []; +/******/ var hotStatus = "idle"; +/******/ +/******/ function hotSetStatus(newStatus) { +/******/ hotStatus = newStatus; +/******/ for (var i = 0; i < hotStatusHandlers.length; i++) +/******/ hotStatusHandlers[i].call(null, newStatus); +/******/ } +/******/ +/******/ // while downloading +/******/ var hotWaitingFiles = 0; +/******/ var hotChunksLoading = 0; +/******/ var hotWaitingFilesMap = {}; +/******/ var hotRequestedFilesMap = {}; +/******/ var hotAvailableFilesMap = {}; +/******/ var hotDeferred; +/******/ +/******/ // The update info +/******/ var hotUpdate, hotUpdateNewHash; +/******/ +/******/ function toModuleId(id) { +/******/ var isNumber = +id + "" === id; +/******/ return isNumber ? +id : id; +/******/ } +/******/ +/******/ function hotCheck(apply) { +/******/ if (hotStatus !== "idle") { +/******/ throw new Error("check() is only allowed in idle status"); +/******/ } +/******/ hotApplyOnUpdate = apply; +/******/ hotSetStatus("check"); +/******/ return hotDownloadManifest(hotRequestTimeout).then(function(update) { +/******/ if (!update) { +/******/ hotSetStatus("idle"); +/******/ return null; +/******/ } +/******/ hotRequestedFilesMap = {}; +/******/ hotWaitingFilesMap = {}; +/******/ hotAvailableFilesMap = update.c; +/******/ hotUpdateNewHash = update.h; +/******/ +/******/ hotSetStatus("prepare"); +/******/ var promise = new Promise(function(resolve, reject) { +/******/ hotDeferred = { +/******/ resolve: resolve, +/******/ reject: reject +/******/ }; +/******/ }); +/******/ hotUpdate = {}; +/******/ var chunkId = "cornerstone"; +/******/ // eslint-disable-next-line no-lone-blocks +/******/ { +/******/ /*globals chunkId */ +/******/ hotEnsureUpdateChunk(chunkId); +/******/ } +/******/ if ( +/******/ hotStatus === "prepare" && +/******/ hotChunksLoading === 0 && +/******/ hotWaitingFiles === 0 +/******/ ) { +/******/ hotUpdateDownloaded(); +/******/ } +/******/ return promise; +/******/ }); +/******/ } +/******/ +/******/ // eslint-disable-next-line no-unused-vars +/******/ function hotAddUpdateChunk(chunkId, moreModules) { +/******/ if (!hotAvailableFilesMap[chunkId] || !hotRequestedFilesMap[chunkId]) +/******/ return; +/******/ hotRequestedFilesMap[chunkId] = false; +/******/ for (var moduleId in moreModules) { +/******/ if (Object.prototype.hasOwnProperty.call(moreModules, moduleId)) { +/******/ hotUpdate[moduleId] = moreModules[moduleId]; +/******/ } +/******/ } +/******/ if (--hotWaitingFiles === 0 && hotChunksLoading === 0) { +/******/ hotUpdateDownloaded(); +/******/ } +/******/ } +/******/ +/******/ function hotEnsureUpdateChunk(chunkId) { +/******/ if (!hotAvailableFilesMap[chunkId]) { +/******/ hotWaitingFilesMap[chunkId] = true; +/******/ } else { +/******/ hotRequestedFilesMap[chunkId] = true; +/******/ hotWaitingFiles++; +/******/ hotDownloadUpdateChunk(chunkId); +/******/ } +/******/ } +/******/ +/******/ function hotUpdateDownloaded() { +/******/ hotSetStatus("ready"); +/******/ var deferred = hotDeferred; +/******/ hotDeferred = null; +/******/ if (!deferred) return; +/******/ if (hotApplyOnUpdate) { +/******/ // Wrap deferred object in Promise to mark it as a well-handled Promise to +/******/ // avoid triggering uncaught exception warning in Chrome. +/******/ // See https://bugs.chromium.org/p/chromium/issues/detail?id=465666 +/******/ Promise.resolve() +/******/ .then(function() { +/******/ return hotApply(hotApplyOnUpdate); +/******/ }) +/******/ .then( +/******/ function(result) { +/******/ deferred.resolve(result); +/******/ }, +/******/ function(err) { +/******/ deferred.reject(err); +/******/ } +/******/ ); +/******/ } else { +/******/ var outdatedModules = []; +/******/ for (var id in hotUpdate) { +/******/ if (Object.prototype.hasOwnProperty.call(hotUpdate, id)) { +/******/ outdatedModules.push(toModuleId(id)); +/******/ } +/******/ } +/******/ deferred.resolve(outdatedModules); +/******/ } +/******/ } +/******/ +/******/ function hotApply(options) { +/******/ if (hotStatus !== "ready") +/******/ throw new Error("apply() is only allowed in ready status"); +/******/ options = options || {}; +/******/ +/******/ var cb; +/******/ var i; +/******/ var j; +/******/ var module; +/******/ var moduleId; +/******/ +/******/ function getAffectedStuff(updateModuleId) { +/******/ var outdatedModules = [updateModuleId]; +/******/ var outdatedDependencies = {}; +/******/ +/******/ var queue = outdatedModules.slice().map(function(id) { +/******/ return { +/******/ chain: [id], +/******/ id: id +/******/ }; +/******/ }); +/******/ while (queue.length > 0) { +/******/ var queueItem = queue.pop(); +/******/ var moduleId = queueItem.id; +/******/ var chain = queueItem.chain; +/******/ module = installedModules[moduleId]; +/******/ if (!module || module.hot._selfAccepted) continue; +/******/ if (module.hot._selfDeclined) { +/******/ return { +/******/ type: "self-declined", +/******/ chain: chain, +/******/ moduleId: moduleId +/******/ }; +/******/ } +/******/ if (module.hot._main) { +/******/ return { +/******/ type: "unaccepted", +/******/ chain: chain, +/******/ moduleId: moduleId +/******/ }; +/******/ } +/******/ for (var i = 0; i < module.parents.length; i++) { +/******/ var parentId = module.parents[i]; +/******/ var parent = installedModules[parentId]; +/******/ if (!parent) continue; +/******/ if (parent.hot._declinedDependencies[moduleId]) { +/******/ return { +/******/ type: "declined", +/******/ chain: chain.concat([parentId]), +/******/ moduleId: moduleId, +/******/ parentId: parentId +/******/ }; +/******/ } +/******/ if (outdatedModules.indexOf(parentId) !== -1) continue; +/******/ if (parent.hot._acceptedDependencies[moduleId]) { +/******/ if (!outdatedDependencies[parentId]) +/******/ outdatedDependencies[parentId] = []; +/******/ addAllToSet(outdatedDependencies[parentId], [moduleId]); +/******/ continue; +/******/ } +/******/ delete outdatedDependencies[parentId]; +/******/ outdatedModules.push(parentId); +/******/ queue.push({ +/******/ chain: chain.concat([parentId]), +/******/ id: parentId +/******/ }); +/******/ } +/******/ } +/******/ +/******/ return { +/******/ type: "accepted", +/******/ moduleId: updateModuleId, +/******/ outdatedModules: outdatedModules, +/******/ outdatedDependencies: outdatedDependencies +/******/ }; +/******/ } +/******/ +/******/ function addAllToSet(a, b) { +/******/ for (var i = 0; i < b.length; i++) { +/******/ var item = b[i]; +/******/ if (a.indexOf(item) === -1) a.push(item); +/******/ } +/******/ } +/******/ +/******/ // at begin all updates modules are outdated +/******/ // the "outdated" status can propagate to parents if they don't accept the children +/******/ var outdatedDependencies = {}; +/******/ var outdatedModules = []; +/******/ var appliedUpdate = {}; +/******/ +/******/ var warnUnexpectedRequire = function warnUnexpectedRequire() { +/******/ console.warn( +/******/ "[HMR] unexpected require(" + result.moduleId + ") to disposed module" +/******/ ); +/******/ }; +/******/ +/******/ for (var id in hotUpdate) { +/******/ if (Object.prototype.hasOwnProperty.call(hotUpdate, id)) { +/******/ moduleId = toModuleId(id); +/******/ /** @type {TODO} */ +/******/ var result; +/******/ if (hotUpdate[id]) { +/******/ result = getAffectedStuff(moduleId); +/******/ } else { +/******/ result = { +/******/ type: "disposed", +/******/ moduleId: id +/******/ }; +/******/ } +/******/ /** @type {Error|false} */ +/******/ var abortError = false; +/******/ var doApply = false; +/******/ var doDispose = false; +/******/ var chainInfo = ""; +/******/ if (result.chain) { +/******/ chainInfo = "\nUpdate propagation: " + result.chain.join(" -> "); +/******/ } +/******/ switch (result.type) { +/******/ case "self-declined": +/******/ if (options.onDeclined) options.onDeclined(result); +/******/ if (!options.ignoreDeclined) +/******/ abortError = new Error( +/******/ "Aborted because of self decline: " + +/******/ result.moduleId + +/******/ chainInfo +/******/ ); +/******/ break; +/******/ case "declined": +/******/ if (options.onDeclined) options.onDeclined(result); +/******/ if (!options.ignoreDeclined) +/******/ abortError = new Error( +/******/ "Aborted because of declined dependency: " + +/******/ result.moduleId + +/******/ " in " + +/******/ result.parentId + +/******/ chainInfo +/******/ ); +/******/ break; +/******/ case "unaccepted": +/******/ if (options.onUnaccepted) options.onUnaccepted(result); +/******/ if (!options.ignoreUnaccepted) +/******/ abortError = new Error( +/******/ "Aborted because " + moduleId + " is not accepted" + chainInfo +/******/ ); +/******/ break; +/******/ case "accepted": +/******/ if (options.onAccepted) options.onAccepted(result); +/******/ doApply = true; +/******/ break; +/******/ case "disposed": +/******/ if (options.onDisposed) options.onDisposed(result); +/******/ doDispose = true; +/******/ break; +/******/ default: +/******/ throw new Error("Unexception type " + result.type); +/******/ } +/******/ if (abortError) { +/******/ hotSetStatus("abort"); +/******/ return Promise.reject(abortError); +/******/ } +/******/ if (doApply) { +/******/ appliedUpdate[moduleId] = hotUpdate[moduleId]; +/******/ addAllToSet(outdatedModules, result.outdatedModules); +/******/ for (moduleId in result.outdatedDependencies) { +/******/ if ( +/******/ Object.prototype.hasOwnProperty.call( +/******/ result.outdatedDependencies, +/******/ moduleId +/******/ ) +/******/ ) { +/******/ if (!outdatedDependencies[moduleId]) +/******/ outdatedDependencies[moduleId] = []; +/******/ addAllToSet( +/******/ outdatedDependencies[moduleId], +/******/ result.outdatedDependencies[moduleId] +/******/ ); +/******/ } +/******/ } +/******/ } +/******/ if (doDispose) { +/******/ addAllToSet(outdatedModules, [result.moduleId]); +/******/ appliedUpdate[moduleId] = warnUnexpectedRequire; +/******/ } +/******/ } +/******/ } +/******/ +/******/ // Store self accepted outdated modules to require them later by the module system +/******/ var outdatedSelfAcceptedModules = []; +/******/ for (i = 0; i < outdatedModules.length; i++) { +/******/ moduleId = outdatedModules[i]; +/******/ if ( +/******/ installedModules[moduleId] && +/******/ installedModules[moduleId].hot._selfAccepted +/******/ ) +/******/ outdatedSelfAcceptedModules.push({ +/******/ module: moduleId, +/******/ errorHandler: installedModules[moduleId].hot._selfAccepted +/******/ }); +/******/ } +/******/ +/******/ // Now in "dispose" phase +/******/ hotSetStatus("dispose"); +/******/ Object.keys(hotAvailableFilesMap).forEach(function(chunkId) { +/******/ if (hotAvailableFilesMap[chunkId] === false) { +/******/ hotDisposeChunk(chunkId); +/******/ } +/******/ }); +/******/ +/******/ var idx; +/******/ var queue = outdatedModules.slice(); +/******/ while (queue.length > 0) { +/******/ moduleId = queue.pop(); +/******/ module = installedModules[moduleId]; +/******/ if (!module) continue; +/******/ +/******/ var data = {}; +/******/ +/******/ // Call dispose handlers +/******/ var disposeHandlers = module.hot._disposeHandlers; +/******/ for (j = 0; j < disposeHandlers.length; j++) { +/******/ cb = disposeHandlers[j]; +/******/ cb(data); +/******/ } +/******/ hotCurrentModuleData[moduleId] = data; +/******/ +/******/ // disable module (this disables requires from this module) +/******/ module.hot.active = false; +/******/ +/******/ // remove module from cache +/******/ delete installedModules[moduleId]; +/******/ +/******/ // when disposing there is no need to call dispose handler +/******/ delete outdatedDependencies[moduleId]; +/******/ +/******/ // remove "parents" references from all children +/******/ for (j = 0; j < module.children.length; j++) { +/******/ var child = installedModules[module.children[j]]; +/******/ if (!child) continue; +/******/ idx = child.parents.indexOf(moduleId); +/******/ if (idx >= 0) { +/******/ child.parents.splice(idx, 1); +/******/ } +/******/ } +/******/ } +/******/ +/******/ // remove outdated dependency from module children +/******/ var dependency; +/******/ var moduleOutdatedDependencies; +/******/ for (moduleId in outdatedDependencies) { +/******/ if ( +/******/ Object.prototype.hasOwnProperty.call(outdatedDependencies, moduleId) +/******/ ) { +/******/ module = installedModules[moduleId]; +/******/ if (module) { +/******/ moduleOutdatedDependencies = outdatedDependencies[moduleId]; +/******/ for (j = 0; j < moduleOutdatedDependencies.length; j++) { +/******/ dependency = moduleOutdatedDependencies[j]; +/******/ idx = module.children.indexOf(dependency); +/******/ if (idx >= 0) module.children.splice(idx, 1); +/******/ } +/******/ } +/******/ } +/******/ } +/******/ +/******/ // Not in "apply" phase +/******/ hotSetStatus("apply"); +/******/ +/******/ hotCurrentHash = hotUpdateNewHash; +/******/ +/******/ // insert new code +/******/ for (moduleId in appliedUpdate) { +/******/ if (Object.prototype.hasOwnProperty.call(appliedUpdate, moduleId)) { +/******/ modules[moduleId] = appliedUpdate[moduleId]; +/******/ } +/******/ } +/******/ +/******/ // call accept handlers +/******/ var error = null; +/******/ for (moduleId in outdatedDependencies) { +/******/ if ( +/******/ Object.prototype.hasOwnProperty.call(outdatedDependencies, moduleId) +/******/ ) { +/******/ module = installedModules[moduleId]; +/******/ if (module) { +/******/ moduleOutdatedDependencies = outdatedDependencies[moduleId]; +/******/ var callbacks = []; +/******/ for (i = 0; i < moduleOutdatedDependencies.length; i++) { +/******/ dependency = moduleOutdatedDependencies[i]; +/******/ cb = module.hot._acceptedDependencies[dependency]; +/******/ if (cb) { +/******/ if (callbacks.indexOf(cb) !== -1) continue; +/******/ callbacks.push(cb); +/******/ } +/******/ } +/******/ for (i = 0; i < callbacks.length; i++) { +/******/ cb = callbacks[i]; +/******/ try { +/******/ cb(moduleOutdatedDependencies); +/******/ } catch (err) { +/******/ if (options.onErrored) { +/******/ options.onErrored({ +/******/ type: "accept-errored", +/******/ moduleId: moduleId, +/******/ dependencyId: moduleOutdatedDependencies[i], +/******/ error: err +/******/ }); 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+/******/ } +/******/ if (!options.ignoreErrored) { +/******/ if (!error) error = err; +/******/ } +/******/ } +/******/ } +/******/ } +/******/ +/******/ // handle errors in accept handlers and self accepted module load +/******/ if (error) { +/******/ hotSetStatus("fail"); +/******/ return Promise.reject(error); +/******/ } +/******/ +/******/ hotSetStatus("idle"); +/******/ return new Promise(function(resolve) { +/******/ resolve(outdatedModules); +/******/ }); +/******/ } +/******/ +/******/ // The module cache +/******/ var installedModules = {}; +/******/ +/******/ // The require function +/******/ function __webpack_require__(moduleId) { +/******/ +/******/ // Check if module is in cache +/******/ if(installedModules[moduleId]) { +/******/ return installedModules[moduleId].exports; +/******/ } +/******/ // Create a new module (and put it into the cache) +/******/ var module = installedModules[moduleId] = { +/******/ i: moduleId, +/******/ l: false, +/******/ exports: {}, +/******/ hot: hotCreateModule(moduleId), +/******/ parents: (hotCurrentParentsTemp = hotCurrentParents, hotCurrentParents = [], hotCurrentParentsTemp), +/******/ children: [] +/******/ }; 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+__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _internal_getTransform_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./internal/getTransform.js */ "./internal/getTransform.js"); + + +/** + * Converts a point in the canvas coordinate system to the pixel coordinate system + * system. This can be used to reset tools' image coordinates after modifications + * have been made in canvas space (e.g. moving a tool by a few cm, independent of + * image resolution). + * + * @param {HTMLElement} element The Cornerstone element within which the input point lies + * @param {{x: Number, y: Number}} pt The input point in the canvas coordinate system + * + * @returns {{x: Number, y: Number}} The transformed point in the pixel coordinate system + * @memberof PixelCoordinateSystem + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element, pt) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + var transform = Object(_internal_getTransform_js__WEBPACK_IMPORTED_MODULE_1__["default"])(enabledElement); + transform.invert(); + return transform.transformPoint(pt.x, pt.y); +}); + +/***/ }), + +/***/ "./colors/colormap.js": +/*!****************************!*\ + !*** ./colors/colormap.js ***! + \****************************/ +/*! exports provided: getColormapsList, getColormap */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getColormapsList", function() { return getColormapsList; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getColormap", function() { return getColormap; }); +/* harmony import */ var _lookupTable_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./lookupTable.js */ "./colors/lookupTable.js"); + +var COLOR_TRANSPARENT = [0, 0, 0, 0]; // Colormaps +// +// Hot Iron, PET, Hot Metal Blue and PET 20 Step are color palettes +// Defined by the DICOM standard +// http://dicom.nema.org/dicom/2013/output/chtml/part06/chapter_B.html +// +// All Linear Segmented Colormaps were copied from matplotlib +// https://github.com/stefanv/matplotlib/blob/master/lib/matplotlib/_cm.py + +var colormapsData = { + hotIron: { + name: 'Hot Iron', + numOfColors: 256, + colors: [[0, 0, 0, 255], [2, 0, 0, 255], [4, 0, 0, 255], [6, 0, 0, 255], [8, 0, 0, 255], [10, 0, 0, 255], [12, 0, 0, 255], [14, 0, 0, 255], [16, 0, 0, 255], [18, 0, 0, 255], [20, 0, 0, 255], [22, 0, 0, 255], [24, 0, 0, 255], [26, 0, 0, 255], [28, 0, 0, 255], [30, 0, 0, 255], [32, 0, 0, 255], [34, 0, 0, 255], [36, 0, 0, 255], [38, 0, 0, 255], [40, 0, 0, 255], [42, 0, 0, 255], [44, 0, 0, 255], [46, 0, 0, 255], [48, 0, 0, 255], [50, 0, 0, 255], [52, 0, 0, 255], [54, 0, 0, 255], [56, 0, 0, 255], [58, 0, 0, 255], [60, 0, 0, 255], [62, 0, 0, 255], [64, 0, 0, 255], [66, 0, 0, 255], [68, 0, 0, 255], [70, 0, 0, 255], [72, 0, 0, 255], [74, 0, 0, 255], [76, 0, 0, 255], [78, 0, 0, 255], [80, 0, 0, 255], [82, 0, 0, 255], [84, 0, 0, 255], [86, 0, 0, 255], [88, 0, 0, 255], [90, 0, 0, 255], [92, 0, 0, 255], [94, 0, 0, 255], [96, 0, 0, 255], [98, 0, 0, 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0.596262162], [0.3125, 0.639176211, 0.639176211], [0.34375, 0.681291281, 0.681291281], [0.375, 0.722193294, 0.722193294], [0.40625, 0.761464949, 0.761464949], [0.4375, 0.798691636, 0.798691636], [0.46875, 0.833466556, 0.833466556], [0.5, 0.865395197, 0.865395197], [0.53125, 0.897787179, 0.897787179], [0.5625, 0.924127593, 0.924127593], [0.59375, 0.944468518, 0.944468518], [0.625, 0.958852946, 0.958852946], [0.65625, 0.96732803, 0.96732803], [0.6875, 0.969954137, 0.969954137], [0.71875, 0.966811177, 0.966811177], [0.75, 0.958003065, 0.958003065], [0.78125, 0.943660866, 0.943660866], [0.8125, 0.923944917, 0.923944917], [0.84375, 0.89904617, 0.89904617], [0.875, 0.869186849, 0.869186849], [0.90625, 0.834620542, 0.834620542], [0.9375, 0.795631745, 0.795631745], [0.96875, 0.752534934, 0.752534934], [1, 0.705673158, 0.705673158]], + green: [[0, 0.298717966, 0.298717966], [0.03125, 0.353094838, 0.353094838], [0.0625, 0.406535296, 0.406535296], [0.09375, 0.458757618, 0.458757618], [0.125, 0.50941904, 0.50941904], [0.15625, 0.558148092, 0.558148092], [0.1875, 0.604562568, 0.604562568], [0.21875, 0.648280772, 0.648280772], [0.25, 0.688929332, 0.688929332], [0.28125, 0.726149107, 0.726149107], [0.3125, 0.759599947, 0.759599947], [0.34375, 0.788964712, 0.788964712], [0.375, 0.813952739, 0.813952739], [0.40625, 0.834302879, 0.834302879], [0.4375, 0.849786142, 0.849786142], [0.46875, 0.860207984, 0.860207984], [0.5, 0.86541021, 0.86541021], [0.53125, 0.848937047, 0.848937047], [0.5625, 0.827384882, 0.827384882], [0.59375, 0.800927443, 0.800927443], [0.625, 0.769767752, 0.769767752], [0.65625, 0.734132809, 0.734132809], [0.6875, 0.694266682, 0.694266682], [0.71875, 0.650421156, 0.650421156], [0.75, 0.602842431, 0.602842431], [0.78125, 0.551750968, 0.551750968], [0.8125, 0.49730856, 0.49730856], [0.84375, 0.439559467, 0.439559467], [0.875, 0.378313092, 0.378313092], [0.90625, 0.312874446, 0.312874446], [0.9375, 0.24128379, 0.24128379], [0.96875, 0.157246067, 0.157246067], [1, 0.01555616, 0.01555616]], + blue: [[0, 0.753683153, 0.753683153], [0.03125, 0.801466763, 0.801466763], [0.0625, 0.84495867, 0.84495867], [0.09375, 0.883725899, 0.883725899], [0.125, 0.917387822, 0.917387822], [0.15625, 0.945619588, 0.945619588], [0.1875, 0.968154911, 0.968154911], [0.21875, 0.98478814, 0.98478814], [0.25, 0.995375608, 0.995375608], [0.28125, 0.999836203, 0.999836203], [0.3125, 0.998151185, 0.998151185], [0.34375, 0.990363227, 0.990363227], [0.375, 0.976574709, 0.976574709], [0.40625, 0.956945269, 0.956945269], [0.4375, 0.931688648, 0.931688648], [0.46875, 0.901068838, 0.901068838], [0.5, 0.865395561, 0.865395561], [0.53125, 0.820880546, 0.820880546], [0.5625, 0.774508472, 0.774508472], [0.59375, 0.726736146, 0.726736146], [0.625, 0.678007945, 0.678007945], [0.65625, 0.628751763, 0.628751763], [0.6875, 0.579375448, 0.579375448], [0.71875, 0.530263762, 0.530263762], [0.75, 0.481775914, 0.481775914], [0.78125, 0.434243684, 0.434243684], [0.8125, 0.387970225, 0.387970225], [0.84375, 0.343229596, 0.343229596], [0.875, 0.300267182, 0.300267182], [0.90625, 0.259301199, 0.259301199], [0.9375, 0.220525627, 0.220525627], [0.96875, 0.184115123, 0.184115123], [1, 0.150232812, 0.150232812]] + } + }, + blues: { + name: 'Blues', + numColors: 256, + gamma: 1, + segmentedData: { + red: [[0, 0.9686274528503418, 0.9686274528503418], [0.125, 0.87058824300765991, 0.87058824300765991], [0.25, 0.7764706015586853, 0.7764706015586853], [0.375, 0.61960786581039429, 0.61960786581039429], [0.5, 0.41960784792900085, 0.41960784792900085], [0.625, 0.25882354378700256, 0.25882354378700256], [0.75, 0.12941177189350128, 0.12941177189350128], [0.875, 0.031372550874948502, 0.031372550874948502], [1, 0.031372550874948502, 0.031372550874948502]], + green: [[0, 0.9843137264251709, 0.9843137264251709], [0.125, 0.92156863212585449, 0.92156863212585449], [0.25, 0.85882353782653809, 0.85882353782653809], [0.375, 0.7921568751335144, 0.7921568751335144], [0.5, 0.68235296010971069, 0.68235296010971069], [0.625, 0.57254904508590698, 0.57254904508590698], [0.75, 0.44313725829124451, 0.44313725829124451], [0.875, 0.31764706969261169, 0.31764706969261169], [1, 0.18823529779911041, 0.18823529779911041]], + blue: [[0, 1, 1], [0.125, 0.9686274528503418, 0.9686274528503418], [0.25, 0.93725490570068359, 0.93725490570068359], [0.375, 0.88235294818878174, 0.88235294818878174], [0.5, 0.83921569585800171, 0.83921569585800171], [0.625, 0.7764706015586853, 0.7764706015586853], [0.75, 0.70980393886566162, 0.70980393886566162], [0.875, 0.61176472902297974, 0.61176472902297974], [1, 0.41960784792900085, 0.41960784792900085]] + } + } +}; +/** + * Generate linearly spaced vectors +* http://cens.ioc.ee/local/man/matlab/techdoc/ref/linspace.html + * @param {Number} a A number representing the first vector + * @param {Number} b A number representing the second vector + * @param {Number} n The number of linear spaced vectors to generate + * @returns {Array} An array of points representing linear spaced vectors. + * @memberof Colors + */ + +function linspace(a, b, n) { + n = n === null ? 100 : n; + var increment = (b - a) / (n - 1); + var vector = []; + + while (n-- > 0) { + vector.push(a); + a += increment; + } // Make sure the last item will always be "b" because most of the + // Time we'll get numbers like 1.0000000000000002 instead of 1. + + + vector[vector.length - 1] = b; + return vector; +} +/** + * Returns the "rank/index" of the element in a sorted array if found or the highest index if not. Uses (binary search) + * @param {Array} array A sorted array to search in + * @param {any} elem the element in the array to search for + * @returns {number} The rank/index of the element in the given array + * @memberof Colors + */ + + +function getRank(array, elem) { + var left = 0; + var right = array.length - 1; + + while (left <= right) { + var mid = left + Math.floor((right - left) / 2); + var midElem = array[mid]; + + if (midElem === elem) { + return mid; + } else if (elem < midElem) { + right = mid - 1; + } else { + left = mid + 1; + } + } + + return left; +} +/** + * Find the indices into a sorted array a such that, if the corresponding elements + * In v were inserted before the indices, the order of a would be preserved. + * http://lagrange.univ-lyon1.fr/docs/numpy/1.11.0/reference/generated/numpy.searchsorted.html + * @param {Array} inputArray The array where the values will be inserted + * @param {Array} values An array of the values to be inserted into the inputArray + * @returns {Array} The indices where elements should be inserted to maintain order. + * @memberof Colors + */ + + +function searchSorted(inputArray, values) { + var i; + var indexes = []; + var len = values.length; + inputArray.sort(function (a, b) { + return a - b; + }); + + for (i = 0; i < len; i++) { + indexes[i] = getRank(inputArray, values[i]); + } + + return indexes; +} +/** + * Creates an *N* -element 1-d lookup table + * @param {Number} N The number of elements in the result lookup table + * @param {Array} data represented by a list of x,y0,y1 mapping correspondences. Each element in this + * List represents how a value between 0 and 1 (inclusive) represented by x is mapped to + * A corresponding value between 0 and 1 (inclusive). The two values of y are to allow for + * Discontinuous mapping functions (say as might be found in a sawtooth) where y0 represents + * The value of y for values of x <= to that given, and y1 is the value to be used for x > + * Than that given). The list must start with x=0, end with x=1, and all values of x must be + * In increasing order. Values between the given mapping points are determined by simple linear + * Interpolation. + * @param {any} gamma value denotes a "gamma curve" value which adjusts the brightness + * at the bottom and top of the map. + * @returns {any[]} an array "result" where result[x*(N-1)] gives the closest value for + * Values of x between 0 and 1. + * @memberof Colors + */ + + +function makeMappingArray(N, data, gamma) { + var i; + var x = []; + var y0 = []; + var y1 = []; + var lut = []; + gamma = gamma === null ? 1 : gamma; + + for (i = 0; i < data.length; i++) { + var element = data[i]; + x.push((N - 1) * element[0]); + y0.push(element[1]); + y1.push(element[1]); + } + + var xLinSpace = linspace(0, 1, N); + + for (i = 0; i < N; i++) { + xLinSpace[i] = (N - 1) * Math.pow(xLinSpace[i], gamma); + } + + var xLinSpaceIndexes = searchSorted(x, xLinSpace); + + for (i = 1; i < N - 1; i++) { + var index = xLinSpaceIndexes[i]; + var colorPercent = (xLinSpace[i] - x[index - 1]) / (x[index] - x[index - 1]); + var colorDelta = y0[index] - y1[index - 1]; + lut[i] = colorPercent * colorDelta + y1[index - 1]; + } + + lut[0] = y1[0]; + lut[N - 1] = y0[data.length - 1]; + return lut; +} +/** + * Creates a Colormap based on lookup tables using linear segments. + * @param {{red:Array, green:Array, blue:Array}} segmentedData An object with a red, green and blue entries. + * Each entry should be a list of x, y0, y1 tuples, forming rows in a table. + * @param {Number} N The number of elements in the result Colormap + * @param {any} gamma value denotes a "gamma curve" value which adjusts the brightness + * at the bottom and top of the Colormap. + * @returns {Array} The created Colormap object + * @description The lookup table is generated using linear interpolation for each + * Primary color, with the 0-1 domain divided into any number of + * Segments. + * https://github.com/stefanv/matplotlib/blob/3f1a23755e86fef97d51e30e106195f34425c9e3/lib/matplotlib/colors.py#L663 + * @memberof Colors + */ + + +function createLinearSegmentedColormap(segmentedData, N, gamma) { + var i; + var lut = []; + N = N === null ? 256 : N; + gamma = gamma === null ? 1 : gamma; + var redLut = makeMappingArray(N, segmentedData.red, gamma); + var greenLut = makeMappingArray(N, segmentedData.green, gamma); + var blueLut = makeMappingArray(N, segmentedData.blue, gamma); + + for (i = 0; i < N; i++) { + var red = Math.round(redLut[i] * 255); + var green = Math.round(greenLut[i] * 255); + var blue = Math.round(blueLut[i] * 255); + var rgba = [red, green, blue, 255]; + lut.push(rgba); + } + + return lut; +} +/** + * Return all available colormaps (id and name) + * @returns {Array<{id,key}>} An array of colormaps with an object containing the "id" and display "name" + * @memberof Colors + */ + + +function getColormapsList() { + var colormaps = []; + var keys = Object.keys(colormapsData); + keys.forEach(function (key) { + if (colormapsData.hasOwnProperty(key)) { + var colormap = colormapsData[key]; + colormaps.push({ + id: key, + name: colormap.name + }); + } + }); + colormaps.sort(function (a, b) { + var aName = a.name.toLowerCase(); + var bName = b.name.toLowerCase(); + + if (aName === bName) { + return 0; + } + + return aName < bName ? -1 : 1; + }); + return colormaps; +} +/** + * Return a colorMap object with the provided id and colormapData + * if the Id matches existent colorMap objects (check colormapsData) the colormapData is ignored. + * if the colormapData is not empty, the colorMap will be added to the colormapsData list. Otherwise, an empty colorMap object is returned. + * @param {string} id The ID of the colormap + * @param {Object} colormapData - An object that can contain a name, numColors, gama, segmentedData and/or colors + * @returns {*} The Colormap Object + * @memberof Colors +*/ + +function getColormap(id, colormapData) { + var colormap = colormapsData[id]; + + if (!colormap) { + colormap = colormapsData[id] = colormapData || { + name: '', + colors: [] + }; + } + + if (!colormap.colors && colormap.segmentedData) { + colormap.colors = createLinearSegmentedColormap(colormap.segmentedData, colormap.numColors, colormap.gamma); + } + + return { + getId: function getId() { + return id; + }, + getColorSchemeName: function getColorSchemeName() { + return colormap.name; + }, + setColorSchemeName: function setColorSchemeName(name) { + colormap.name = name; + }, + getNumberOfColors: function getNumberOfColors() { + return colormap.colors.length; + }, + setNumberOfColors: function setNumberOfColors(numColors) { + while (colormap.colors.length < numColors) { + colormap.colors.push(COLOR_TRANSPARENT); + } + + colormap.colors.length = numColors; + }, + getColor: function getColor(index) { + if (this.isValidIndex(index)) { + return colormap.colors[index]; + } + + return COLOR_TRANSPARENT; + }, + getColorRepeating: function getColorRepeating(index) { + var numColors = colormap.colors.length; + index = numColors ? index % numColors : 0; + return this.getColor(index); + }, + setColor: function setColor(index, rgba) { + if (this.isValidIndex(index)) { + colormap.colors[index] = rgba; + } + }, + addColor: function addColor(rgba) { + colormap.colors.push(rgba); + }, + insertColor: function insertColor(index, rgba) { + if (this.isValidIndex(index)) { + colormap.colors.splice(index, 1, rgba); + } + }, + removeColor: function removeColor(index) { + if (this.isValidIndex(index)) { + colormap.colors.splice(index, 1); + } + }, + clearColors: function clearColors() { + colormap.colors = []; + }, + buildLookupTable: function buildLookupTable(lut) { + if (!lut) { + return; + } + + var numColors = colormap.colors.length; + lut.setNumberOfTableValues(numColors); + + for (var i = 0; i < numColors; i++) { + lut.setTableValue(i, colormap.colors[i]); + } + }, + createLookupTable: function createLookupTable() { + var lut = new _lookupTable_js__WEBPACK_IMPORTED_MODULE_0__["default"](); + this.buildLookupTable(lut); + return lut; + }, + isValidIndex: function isValidIndex(index) { + return index >= 0 && index < colormap.colors.length; + } + }; +} + +/***/ }), + +/***/ "./colors/index.js": +/*!*************************!*\ + !*** ./colors/index.js ***! + \*************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _colormap_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./colormap.js */ "./colors/colormap.js"); +/* harmony import */ var _lookupTable_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./lookupTable.js */ "./colors/lookupTable.js"); + + +/* harmony default export */ __webpack_exports__["default"] = ({ + getColormap: _colormap_js__WEBPACK_IMPORTED_MODULE_0__["getColormap"], + getColormapsList: _colormap_js__WEBPACK_IMPORTED_MODULE_0__["getColormapsList"], + LookupTable: _lookupTable_js__WEBPACK_IMPORTED_MODULE_1__["default"] +}); + +/***/ }), + +/***/ "./colors/lookupTable.js": +/*!*******************************!*\ + !*** ./colors/lookupTable.js ***! + \*******************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +// This code was created based on vtkLookupTable +// http://www.vtk.org/doc/release/5.0/html/a01697.html +// https://github.com/Kitware/VTK/blob/master/Common/Core/vtkLookupTable.cxx +var BELOW_RANGE_COLOR_INDEX = 0; +var ABOVE_RANGE_COLOR_INDEX = 1; +var NAN_COLOR_INDEX = 2; +/** + * Converts an HSV (Hue, Saturation, Value) color to RGB (Red, Green, Blue) color value + * @param {Number} hue A number representing the hue color value + * @param {any} sat A number representing the saturation color value + * @param {any} val A number representing the value color value + * @returns {Numberp[]} An RGB color array + */ + +function HSVToRGB(hue, sat, val) { + if (hue > 1) { + throw new Error('HSVToRGB expects hue < 1'); + } + + var rgb = []; + + if (sat === 0) { + rgb[0] = val; + rgb[1] = val; + rgb[2] = val; + return rgb; + } + + var hueCase = Math.floor(hue * 6); + var frac = 6 * hue - hueCase; + var lx = val * (1 - sat); + var ly = val * (1 - sat * frac); + var lz = val * (1 - sat * (1 - frac)); + + switch (hueCase) { + /* 0 p.Range[1]) { + dIndex = p.MaxIndex + ABOVE_RANGE_COLOR_INDEX + 1.5; + } else { + dIndex = (v + p.Shift) * p.Scale; + } + + return Math.floor(dIndex); +} +/** + * Maps scalar values into colors via a lookup table + * LookupTable is an object that is used by mapper objects to map scalar values into rgba (red-green-blue-alpha transparency) color specification, + * or rgba into scalar values. The color table can be created by direct insertion of color values, or by specifying hue, saturation, value, and alpha range and generating a table + */ + + +var LookupTable = /*#__PURE__*/function () { + /** + * Creates a default linear LookupTable object with 256 colors. + */ + function LookupTable() { + _classCallCheck(this, LookupTable); + + this.NumberOfColors = 256; + this.Ramp = 'linear'; + this.TableRange = [0, 255]; + this.HueRange = [0, 0.66667]; + this.SaturationRange = [1, 1]; + this.ValueRange = [1, 1]; + this.AlphaRange = [1, 1]; + this.NaNColor = [128, 0, 0, 255]; + this.BelowRangeColor = [0, 0, 0, 255]; + this.UseBelowRangeColor = true; + this.AboveRangeColor = [255, 255, 255, 255]; + this.UseAboveRangeColor = true; + this.InputRange = [0, 255]; + this.Table = []; + } + /** + * Specify the number of values (i.e., colors) in the lookup table. + * @param {Number} number The number of colors in he LookupTable + * @returns {void} + * @memberof Colors + */ + + + _createClass(LookupTable, [{ + key: "setNumberOfTableValues", + value: function setNumberOfTableValues(number) { + this.NumberOfColors = number; + } + /** + * Set the shape of the table ramp to either 'linear', 'scurve' or 'sqrt' + * @param {String} ramp A string value representing the shape of the table. Allowed values are 'linear', 'scurve' or 'sqrt' + * @returns {void} + * @memberof Colors + */ + + }, { + key: "setRamp", + value: function setRamp(ramp) { + this.Ramp = ramp; + } + /** + * Sets the minimum/maximum scalar values for scalar mapping. + * Scalar values less than minimum range value are clamped to minimum range value. + * Scalar values greater than maximum range value are clamped to maximum range value. + * @param {Number} start A double representing the minimum scaler value of the LookupTable + * @param {any} end A double representing the maximum scaler value of the LookupTable + * @returns {void} + * @memberof Colors + */ + + }, { + key: "setTableRange", + value: function setTableRange(start, end) { + this.TableRange[0] = start; + this.TableRange[1] = end; + } + /** + * Set the range in hue (using automatic generation). Hue ranges between [0,1]. + * @param {Number} start A double representing the minimum hue value in a range. Min. is 0 + * @param {Number} end A double representing the maximum hue value in a range. Max. is 1 + * @returns {void} + * @memberof Colors + */ + + }, { + key: "setHueRange", + value: function setHueRange(start, end) { + this.HueRange[0] = start; + this.HueRange[1] = end; + } + /** + * Set the range in saturation (using automatic generation). Saturation ranges between [0,1]. + * @param {Number} start A double representing the minimum Saturation value in a range. Min. is 0 + * @param {Number} end A double representing the maximum Saturation value in a range. Max. is 1 + * @returns {void} + * @memberof Colors + */ + + }, { + key: "setSaturationRange", + value: function setSaturationRange(start, end) { + this.SaturationRange[0] = start; + this.SaturationRange[1] = end; + } + /** + * Set the range in value (using automatic generation). Value ranges between [0,1]. + * @param {Numeber } start A double representing the minimum value in a range. Min. is 0 + * @param {Numeber} end A double representing the maximum value in a range. Max. is 1 + * @returns {void} + * @memberof Colors + */ + + }, { + key: "setValueRange", + value: function setValueRange(start, end) { + // Set the range in value (using automatic generation). Value ranges between [0,1]. + this.ValueRange[0] = start; + this.ValueRange[1] = end; + } + /** + * (Not Used) Sets the range of scalars which will be mapped. + * @param {Number} start the minimum scalar value in the range + * @param {Number} end the maximum scalar value in the range + * @returns {void} + * @memberof Colors + */ + + }, { + key: "setRange", + value: function setRange(start, end) { + this.InputRange[0] = start; + this.InputRange[1] = end; + } + /** + * Set the range in alpha (using automatic generation). Alpha ranges from [0,1]. + * @param {Number} start A double representing the minimum alpha value + * @param {Number} end A double representing the maximum alpha value + * @returns {void} + * @memberof Colors + */ + + }, { + key: "setAlphaRange", + value: function setAlphaRange(start, end) { + // Set the range in alpha (using automatic generation). Alpha ranges from [0,1]. + this.AlphaRange[0] = start; + this.AlphaRange[1] = end; + } + /** + * Map one value through the lookup table and return the color as an + * RGBA array of doubles between 0 and 1. + * @param {Number} scalar A double scalar value which will be mapped to a color in the LookupTable + * @returns {Number[]} An RGBA array of doubles between 0 and 1 + * @memberof Colors + */ + + }, { + key: "getColor", + value: function getColor(scalar) { + return this.mapValue(scalar); + } + /** + * Generate lookup table from hue, saturation, value, alpha min/max values. Table is built from linear ramp of each value. + * @param {Boolean} force true to force the build of the LookupTable. Otherwie, false. This is useful if a lookup table has been defined manually + * (using SetTableValue) and then an application decides to rebuild the lookup table using the implicit process. + * @returns {void} + * @memberof Colors + */ + + }, { + key: "build", + value: function build(force) { + if (this.Table.length > 1 && !force) { + return; + } // Clear the table + + + this.Table = []; + var maxIndex = this.NumberOfColors - 1; + var hinc, sinc, vinc, ainc; + + if (maxIndex) { + hinc = (this.HueRange[1] - this.HueRange[0]) / maxIndex; + sinc = (this.SaturationRange[1] - this.SaturationRange[0]) / maxIndex; + vinc = (this.ValueRange[1] - this.ValueRange[0]) / maxIndex; + ainc = (this.AlphaRange[1] - this.AlphaRange[0]) / maxIndex; + } else { + hinc = sinc = vinc = ainc = 0.0; + } + + for (var i = 0; i <= maxIndex; i++) { + var hue = this.HueRange[0] + i * hinc; + var sat = this.SaturationRange[0] + i * sinc; + var val = this.ValueRange[0] + i * vinc; + var alpha = this.AlphaRange[0] + i * ainc; + var rgb = HSVToRGB(hue, sat, val); + var c_rgba = []; + + switch (this.Ramp) { + case 'scurve': + c_rgba[0] = Math.floor(127.5 * (1.0 + Math.cos((1.0 - rgb[0]) * Math.PI))); + c_rgba[1] = Math.floor(127.5 * (1.0 + Math.cos((1.0 - rgb[1]) * Math.PI))); + c_rgba[2] = Math.floor(127.5 * (1.0 + Math.cos((1.0 - rgb[2]) * Math.PI))); + c_rgba[3] = Math.floor(alpha * 255); + break; + + case 'linear': + c_rgba[0] = Math.floor(rgb[0] * 255 + 0.5); + c_rgba[1] = Math.floor(rgb[1] * 255 + 0.5); + c_rgba[2] = Math.floor(rgb[2] * 255 + 0.5); + c_rgba[3] = Math.floor(alpha * 255 + 0.5); + break; + + case 'sqrt': + c_rgba[0] = Math.floor(Math.sqrt(rgb[0]) * 255 + 0.5); + c_rgba[1] = Math.floor(Math.sqrt(rgb[1]) * 255 + 0.5); + c_rgba[2] = Math.floor(Math.sqrt(rgb[2]) * 255 + 0.5); + c_rgba[3] = Math.floor(Math.sqrt(alpha) * 255 + 0.5); + break; + + default: + throw new Error("Invalid Ramp value (".concat(this.Ramp, ")")); + } + + this.Table.push(c_rgba); + } + + this.buildSpecialColors(); + } + /** + * Ensures the out-of-range colors (Below range and Above range) are set correctly. + * @returns {void} + * @memberof Colors + */ + + }, { + key: "buildSpecialColors", + value: function buildSpecialColors() { + var numberOfColors = this.NumberOfColors; + var belowRangeColorIndex = numberOfColors + BELOW_RANGE_COLOR_INDEX; + var aboveRangeColorIndex = numberOfColors + ABOVE_RANGE_COLOR_INDEX; + var nanColorIndex = numberOfColors + NAN_COLOR_INDEX; // Below range color + + if (this.UseBelowRangeColor || numberOfColors === 0) { + this.Table[belowRangeColorIndex] = this.BelowRangeColor; + } else { + // Duplicate the first color in the table. + this.Table[belowRangeColorIndex] = this.Table[0]; + } // Above range color + + + if (this.UseAboveRangeColor || numberOfColors === 0) { + this.Table[aboveRangeColorIndex] = this.AboveRangeColor; + } else { + // Duplicate the last color in the table. + this.Table[aboveRangeColorIndex] = this.Table[numberOfColors - 1]; + } // Always use NanColor + + + this.Table[nanColorIndex] = this.NaNColor; + } + /** + * Similar to GetColor - Map one value through the lookup table and return the color as an + * RGBA array of doubles between 0 and 1. + * @param {Numeber} v A double scalar value which will be mapped to a color in the LookupTable + * @returns {Number[]} An RGBA array of doubles between 0 and 1 + * @memberof Colors + */ + + }, { + key: "mapValue", + value: function mapValue(v) { + var index = this.getIndex(v); + + if (index < 0) { + return this.NaNColor; + } else if (index === 0) { + if (this.UseBelowRangeColor && v < this.TableRange[0]) { + return this.BelowRangeColor; + } + } else if (index === this.NumberOfColors - 1) { + if (this.UseAboveRangeColor && v > this.TableRange[1]) { + return this.AboveRangeColor; + } + } + + return this.Table[index]; + } + /** + * Return the table index associated with a particular value. + * @param {Number} v A double value which table index will be returned. + * @returns {Number} The index in the LookupTable + * @memberof Colors + */ + + }, { + key: "getIndex", + value: function getIndex(v) { + var p = {}; + p.Range = []; + p.MaxIndex = this.NumberOfColors - 1; // This was LookupShiftAndScale + + p.Shift = -this.TableRange[0]; + + if (this.TableRange[1] <= this.TableRange[0]) { + p.Scale = Number.MAX_VALUE; + } else { + p.Scale = p.MaxIndex / (this.TableRange[1] - this.TableRange[0]); + } + + p.Range[0] = this.TableRange[0]; + p.Range[1] = this.TableRange[1]; // First, check whether we have a number... + + if (isNaN(v)) { + // For backwards compatibility + return -1; + } // Map to an index: + + + var index = linearIndexLookupMain(v, p); // For backwards compatibility, if the index indicates an + // Out-of-range value, truncate to index range for in-range colors. + + if (index === this.NumberOfColors + BELOW_RANGE_COLOR_INDEX) { + index = 0; + } else if (index === this.NumberOfColors + ABOVE_RANGE_COLOR_INDEX) { + index = this.NumberOfColors - 1; + } + + return index; + } + /** + * Directly load color into lookup table. Use [0,1] double values for color component specification. + * Make sure that you've either used the Build() method or used SetNumberOfTableValues() prior to using this method. + * @param {Number} index The index in the LookupTable of where to insert the color value + * @param {Number[]} rgba An array of [0,1] double values for an RGBA color component + * @returns {void} + * @memberof Colors + */ + + }, { + key: "setTableValue", + value: function setTableValue(index, rgba) { + // Check if it index, red, green, blue and alpha were passed as parameter + if (arguments.length === 5) { + rgba = Array.prototype.slice.call(arguments, 1); + } // Check the index to make sure it is valid + + + if (index < 0) { + throw new Error("Can't set the table value for negative index (".concat(index, ")")); + } + + if (index >= this.NumberOfColors) { + new Error("Index ".concat(index, " is greater than the number of colors ").concat(this.NumberOfColors)); + } + + this.Table[index] = rgba; + + if (index === 0 || index === this.NumberOfColors - 1) { + // This is needed due to the way the special colors are stored in + // The internal table. If Above/BelowRangeColors are not used and + // The min/max colors are changed in the table with this member + // Function, then the colors used for values outside the range may + // Be incorrect. Calling this here ensures the out-of-range colors + // Are set correctly. + this.buildSpecialColors(); + } + } + }]); + + return LookupTable; +}(); + +/* harmony default export */ __webpack_exports__["default"] = (LookupTable); + +/***/ }), + +/***/ "./disable.js": +/*!********************!*\ + !*** ./disable.js ***! + \********************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./triggerEvent.js */ "./triggerEvent.js"); +/* harmony import */ var _events_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./events.js */ "./events.js"); + + + +/** + * Disable an HTML element for further use in Cornerstone + * + * @param {HTMLElement} element An HTML Element enabled for Cornerstone + * @returns {void} + * @memberof Enable + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element) { + if (element === undefined) { + throw new Error('disable: element must not be undefined'); + } // Search for this element in this list of enabled elements + + + var enabledElements = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElements"])(); + + for (var i = 0; i < enabledElements.length; i++) { + if (enabledElements[i].element === element) { + // We found it! + // Fire an event so dependencies can cleanup + var eventData = { + element: element + }; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__["default"])(element, _events_js__WEBPACK_IMPORTED_MODULE_2__["default"].ELEMENT_DISABLED, eventData); + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__["default"])(_events_js__WEBPACK_IMPORTED_MODULE_2__["events"], _events_js__WEBPACK_IMPORTED_MODULE_2__["default"].ELEMENT_DISABLED, eventData); // Remove the child DOM elements that we created (e.g.canvas) + + enabledElements[i].element.removeChild(enabledElements[i].canvas); + enabledElements[i].canvas = undefined; // Remove this element from the list of enabled elements + + enabledElements.splice(i, 1); + break; + } + } +}); + +/***/ }), + +/***/ "./displayImage.js": +/*!*************************!*\ + !*** ./displayImage.js ***! + \*************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./internal/getDefaultViewport.js */ "./internal/getDefaultViewport.js"); +/* harmony import */ var _updateImage_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./updateImage.js */ "./updateImage.js"); +/* harmony import */ var _internal_now_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./internal/now.js */ "./internal/now.js"); +/* harmony import */ var _layers_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./layers.js */ "./layers.js"); +/* harmony import */ var _triggerEvent_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./triggerEvent.js */ "./triggerEvent.js"); +/* harmony import */ var _events_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./events.js */ "./events.js"); + + + + + + + +/** + * Sets a new image object for a given element. + * + * Will also apply an optional viewport setting. + * + * @param {HTMLElement} element An HTML Element enabled for Cornerstone + * @param {Object} image An Image loaded by a Cornerstone Image Loader + * @param {Object} [viewport] A set of Cornerstone viewport parameters + * @returns {void} + * @memberof Drawing + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element, image, viewport) { + if (element === undefined) { + throw new Error('displayImage: parameter element must not be undefined'); + } + + if (image === undefined) { + throw new Error('displayImage: parameter image must not be undefined'); + } + + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + var oldImage = enabledElement.image; + enabledElement.image = image; + + if (enabledElement.layers && enabledElement.layers.length) { + Object(_layers_js__WEBPACK_IMPORTED_MODULE_4__["setLayerImage"])(element, image); + } + + if (enabledElement.viewport === undefined) { + enabledElement.viewport = Object(_internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_1__["default"])(enabledElement.canvas, image); + } // Merge viewport + + + if (viewport) { + for (var attrname in viewport) { + if (viewport[attrname] !== null) { + enabledElement.viewport[attrname] = viewport[attrname]; + } + } + } + + var frameRate; + + if (enabledElement.lastImageTimeStamp !== undefined) { + var timeSinceLastImage = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_3__["default"])() - enabledElement.lastImageTimeStamp; + frameRate = (1000 / timeSinceLastImage).toFixed(); + } + + enabledElement.lastImageTimeStamp = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_3__["default"])(); + var newImageEventData = { + viewport: enabledElement.viewport, + element: enabledElement.element, + image: enabledElement.image, + oldImage: oldImage, + enabledElement: enabledElement, + frameRate: frameRate + }; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_5__["default"])(enabledElement.element, _events_js__WEBPACK_IMPORTED_MODULE_6__["default"].NEW_IMAGE, newImageEventData); + Object(_updateImage_js__WEBPACK_IMPORTED_MODULE_2__["default"])(element); +}); + +/***/ }), + +/***/ "./draw.js": +/*!*****************!*\ + !*** ./draw.js ***! + \*****************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _internal_drawImage_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./internal/drawImage.js */ "./internal/drawImage.js"); + + +/** + * Immediately draws the enabled element + * + * @param {HTMLElement} element An HTML Element enabled for Cornerstone + * @returns {void} + * @memberof Drawing + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + Object(_internal_drawImage_js__WEBPACK_IMPORTED_MODULE_1__["default"])(enabledElement); +}); + +/***/ }), + +/***/ "./drawInvalidated.js": +/*!****************************!*\ + !*** ./drawInvalidated.js ***! + \****************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _internal_drawImage_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./internal/drawImage.js */ "./internal/drawImage.js"); +/** + * This module is responsible for drawing invalidated enabled elements + */ + + +/** + * Draws all invalidated enabled elements and clears the invalid flag after drawing it + * + * @returns {void} + * @memberof Drawing + */ + +/* harmony default export */ __webpack_exports__["default"] = (function () { + var enabledElements = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElements"])(); + + for (var i = 0; i < enabledElements.length; i++) { + var ee = enabledElements[i]; + + if (ee.invalid === true) { + Object(_internal_drawImage_js__WEBPACK_IMPORTED_MODULE_1__["default"])(ee, true); + } + } +}); + +/***/ }), + +/***/ "./enable.js": +/*!*******************!*\ + !*** ./enable.js ***! + \*******************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _resize_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./resize.js */ "./resize.js"); +/* harmony import */ var _internal_drawImageSync_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./internal/drawImageSync.js */ "./internal/drawImageSync.js"); +/* harmony import */ var _internal_requestAnimationFrame_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./internal/requestAnimationFrame.js */ "./internal/requestAnimationFrame.js"); +/* harmony import */ var _internal_tryEnableWebgl_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./internal/tryEnableWebgl.js */ "./internal/tryEnableWebgl.js"); +/* harmony import */ var _triggerEvent_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./triggerEvent.js */ "./triggerEvent.js"); +/* harmony import */ var _generateUUID_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./generateUUID.js */ "./generateUUID.js"); +/* harmony import */ var _events_js__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./events.js */ "./events.js"); +/* harmony import */ var _internal_getCanvas_js__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./internal/getCanvas.js */ "./internal/getCanvas.js"); + + + + + + + + + +/** + * @module Enable + * This module is responsible for enabling an element to display images with cornerstone + */ + +/** + * Returns whether or not an Enabled Element has either a currently active image or + * a non-empty Array of Enabled Element Layers. + * + * @param {EnabledElement} enabledElement An Enabled Element + * @return {Boolean} Whether or not the Enabled Element has an active image or valid set of layers + * @memberof Enable + */ + +function hasImageOrLayers(enabledElement) { + return enabledElement.image !== undefined || enabledElement.layers.length > 0; +} +/** + * Enable an HTML Element for use in Cornerstone + * + * - If there is a Canvas already present within the HTMLElement, and it has the class + * 'cornerstone-canvas', this function will use this existing Canvas instead of creating + * a new one. This may be helpful when using libraries (e.g. React, Vue) which don't + * want third parties to change the DOM. + * + * @param {HTMLElement} element An HTML Element enabled for Cornerstone + * @param {Object} options Options for the enabledElement + * + * @return {void} + * @memberof Enable + */ + + +/* harmony default export */ __webpack_exports__["default"] = (function (element, options) { + if (element === undefined) { + throw new Error('enable: parameter element cannot be undefined'); + } // If this enabled element has the option set for WebGL, we should + // Check if this device actually supports it + + + if (options && options.renderer && options.renderer.toLowerCase() === 'webgl') { + Object(_internal_tryEnableWebgl_js__WEBPACK_IMPORTED_MODULE_4__["default"])(options); + } + + var canvas = Object(_internal_getCanvas_js__WEBPACK_IMPORTED_MODULE_8__["default"])(element); + var enabledElement = { + element: element, + canvas: canvas, + image: undefined, + // Will be set once image is loaded + invalid: false, + // True if image needs to be drawn, false if not + needsRedraw: true, + options: Object.assign({}, options), + layers: [], + data: {}, + renderingTools: {}, + uuid: Object(_generateUUID_js__WEBPACK_IMPORTED_MODULE_6__["default"])() + }; + Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["addEnabledElement"])(enabledElement); + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_5__["default"])(_events_js__WEBPACK_IMPORTED_MODULE_7__["events"], _events_js__WEBPACK_IMPORTED_MODULE_7__["default"].ELEMENT_ENABLED, enabledElement); + Object(_resize_js__WEBPACK_IMPORTED_MODULE_1__["default"])(element, true); + /** + * Draw the image immediately + * + * @param {DOMHighResTimeStamp} timestamp The current time for when requestAnimationFrame starts to fire callbacks + * @returns {void} + * @memberof Drawing + */ + + function draw(timestamp) { + if (enabledElement.canvas === undefined) { + return; + } + + var eventDetails = { + enabledElement: enabledElement, + timestamp: timestamp + }; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_5__["default"])(enabledElement.element, _events_js__WEBPACK_IMPORTED_MODULE_7__["default"].PRE_RENDER, eventDetails); + + if (enabledElement.needsRedraw && hasImageOrLayers(enabledElement)) { + Object(_internal_drawImageSync_js__WEBPACK_IMPORTED_MODULE_2__["default"])(enabledElement, enabledElement.invalid); + } + + Object(_internal_requestAnimationFrame_js__WEBPACK_IMPORTED_MODULE_3__["default"])(draw); + } + + draw(); +}); + +/***/ }), + +/***/ "./enabledElementData.js": +/*!*******************************!*\ + !*** ./enabledElementData.js ***! + \*******************************/ +/*! exports provided: getElementData, removeElementData */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getElementData", function() { return getElementData; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "removeElementData", function() { return removeElementData; }); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); + +/** + * Retrieves any data for a Cornerstone enabledElement for a specific string + * dataType + * + * @param {HTMLElement} element An HTML Element enabled for Cornerstone + * @param {string} dataType A string name for an arbitrary set of data + * @returns {*} Whatever data is stored for this enabled element + */ + +function getElementData(element, dataType) { + var ee = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + + if (ee.data.hasOwnProperty(dataType) === false) { + ee.data[dataType] = {}; + } + + return ee.data[dataType]; +} +/** + * Clears any data for a Cornerstone enabledElement for a specific string + * dataType + * + * @param {HTMLElement} element An HTML Element enabled for Cornerstone + * @param {string} dataType A string name for an arbitrary set of data + * + * @returns {void} + */ + +function removeElementData(element, dataType) { + var ee = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + delete ee.data[dataType]; +} + +/***/ }), + +/***/ "./enabledElements.js": +/*!****************************!*\ + !*** ./enabledElements.js ***! + \****************************/ +/*! exports provided: getEnabledElement, addEnabledElement, getEnabledElementsByImageId, getEnabledElements */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getEnabledElement", function() { return getEnabledElement; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "addEnabledElement", function() { return addEnabledElement; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getEnabledElementsByImageId", function() { return getEnabledElementsByImageId; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getEnabledElements", function() { return getEnabledElements; }); +var enabledElements = []; +/** + * @module EnabledElements + */ + +/** + * @module Objects + */ + +/** + * A two-dimensional vector + * + * @typedef {Object} vec2 + * @memberof Objects + * @param {Number} x - The x distance + * @param {Number} y - The y distance + */ + +/** + * VOI + * + * @typedef {Object} VOI + * @memberof Objects + * @param {Number} windowWidth - Window Width for display + * @param {Number} windowCenter - Window Center for display + */ + +/** + * Lookup Table Array + * + * @typedef {Object} LUT + * @memberof Objects + * @property {Number} firstValueMapped + * @property {Number} numBitsPerEntry + * @property {Array} lut + */ + +/** + * Image Statistics Object + * + * @typedef {Object} ImageStats + * @memberof Objects + * @property {Number} [lastGetPixelDataTime] The time in ms taken to retrieve stored pixels required to draw the image + * @property {Number} [lastStoredPixelDataToCanvasImageDataTime] The time in ms taken to map from stored pixel array to canvas pixel array + * @property {Number} [lastPutImageDataTime] The time in ms taken for putImageData to put the canvas pixel data into the canvas context + * @property {Number} [lastRenderTime] The total time in ms taken for the entire rendering function to run + * @property {Number} [lastLutGenerateTime] The time in ms taken to generate the lookup table for the image + */ + +/** + * An Image Object in Cornerstone + * + * @typedef {Object} Image + * @memberof Objects + * @property {string} imageId - The imageId associated with this image object + * @property {Number} minPixelValue - the minimum stored pixel value in the image + * @property {Number} maxPixelValue - the maximum stored pixel value in the image + * @property {Number} slope - the rescale slope to convert stored pixel values to modality pixel values or 1 if not specified + * @property {Number} intercept - the rescale intercept used to convert stored pixel values to modality values or 0 if not specified + * @property {Number} windowCenter - the default windowCenter to apply to the image + * @property {Number} windowWidth - the default windowWidth to apply to the image + * @property {function} getPixelData - a function that returns the underlying pixel data. An array of integers for grayscale and an array of RGBA for color + * @property {function} getImageData - a function that returns a canvas imageData object for the image. This is only needed for color images + * @property {function} getCanvas - a function that returns a canvas element with the image loaded into it. This is only needed for color images. + * @property {function} getImage - a function that returns a JavaScript Image object with the image data. This is optional and typically used for images encoded in standard web JPEG and PNG formats + * @property {Number} rows - number of rows in the image. This is the same as height but duplicated for convenience + * @property {Number} columns - number of columns in the image. This is the same as width but duplicated for convenience + * @property {Number} height - the height of the image. This is the same as rows but duplicated for convenience + * @property {Number} width - the width of the image. This is the same as columns but duplicated for convenience + * @property {Boolean} color - true if pixel data is RGB, false if grayscale + * @property {Object} lut - The Lookup Table + * @property {Boolean} rgba - Is the color pixel data stored in RGBA? + * @property {Number} columnPixelSpacing - horizontal distance between the middle of each pixel (or width of each pixel) in mm or undefined if not known + * @property {Number} rowPixelSpacing - vertical distance between the middle of each pixel (or height of each pixel) in mm or undefined if not known + * @property {Boolean} invert - true if the the image should initially be displayed be inverted, false if not. This is here mainly to support DICOM images with a photometric interpretation of MONOCHROME1 + * @property {Number} sizeInBytes - the number of bytes used to store the pixels for this image. + * @property {Boolean} [falseColor=false] - Whether or not the image has undergone false color mapping + * @property {Array} [origPixelData] - Original pixel data for an image after it has undergone false color mapping + * @property {ImageStats} [stats] - Statistics for the last redraw of the image + * @property {Object} cachedLut - Cached Lookup Table for this image. + * @property {String|Colormap} [colormap] - Depreacted. Use viewport.colormap instead. an optional colormap ID or colormap object (from colors/colormap.js). This will be applied during rendering to convert the image to pseudocolor + * @property {Boolean} [labelmap=false] - whether or not to render this image as a label map (i.e. skip modality and VOI LUT pipelines and use only a color lookup table) + */ + +/** + * A Viewport Settings Object Cornerstone + * + * @typedef {Object} Viewport + * @memberof Objects + * @property {Number} [scale=1.0] - The scale applied to the image. A scale of 1.0 will display no zoom (one image pixel takes up one screen pixel). A scale of 2.0 will be double zoom and a scale of .5 will be zoomed out by 2x + * @property {vec2} [translation] - An object with properties x and y which describe the translation to apply in the pixel coordinate system. Note that the image is initially displayed centered in the enabled element with a x and y translation of 0 and 0 respectively. + * @property {VOI} [voi] - an object with properties windowWidth and windowCenter. + * @property {boolean} [invert=false] - Whether or not the image is inverted. + * @property {boolean} [pixelReplication=false] - true if the image smooth / interpolation should be used when zoomed in on the image or false if pixel replication should be used. + * @property {boolean} [hflip=false] - true if the image is flipped horizontally. Default is false + * @property {boolean} [vflip=false] - true if the image is flipped vertically. Default is false + * @property {Number} [rotation=0] - the rotation of the image (90 degree increments). Default is 0 + * @property {LUT} [modalityLUT] - the modality LUT to apply or undefined if none + * @property {LUT} [voiLUT] - the modality LUT to apply or undefined if none + * @property {String|Colormap} [colormap] - an optional colormap ID or colormap object (from colors/colormap.js). This will be applied during rendering to convert the image to pseudocolor + * @property {Boolean} [labelmap=false] - whether or not to render this image as a label map (i.e. skip modality and VOI LUT pipelines and use only a color lookup table) + */ + +/** + * An Enabled Element in Cornerstone + * + * @typedef {Object} EnabledElement + * @memberof Objects + * @property {HTMLElement} element - The DOM element which has been enabled for use by Cornerstone + * @property {Image} [image] - The image currently displayed in the enabledElement + * @property {Viewport} [viewport] - The current viewport settings of the enabledElement + * @property {HTMLCanvasElement} [canvas] - The current canvas for this enabledElement + * @property {Boolean} invalid - Whether or not the image pixel data underlying the enabledElement has been changed, necessitating a redraw + * @property {Boolean} needsRedraw - A flag for triggering a redraw of the canvas without re-retrieving the pixel data, since it remains valid + * @property {EnabledElementLayer[]} [layers] - The layers that have been added to the enabledElement + * @property {Boolean} [syncViewports] - Whether or not to synchronize the viewport parameters + * for each of the enabled element's layers + * @property {Boolean} [lastSyncViewportsState] - The previous state for the sync viewport boolean + */ + +/** + * An Enabled Element Layer in Cornerstone + * + * @typedef {Object} EnabledElementLayer + * @memberof Objects + * @property {HTMLElement} element - The DOM element which has been enabled for use by Cornerstone + * @property {Image} [image] - The image currently displayed in the enabledElement + * @property {Viewport} [viewport] - The current viewport settings of the enabledElement + * @property {HTMLCanvasElement} [canvas] - The current canvas for this enabledElement + * @property {Object} [options] - Layer drawing options + * @property {Boolean} invalid - Whether or not the image pixel data underlying the enabledElement has been changed, necessitating a redraw + * @property {Boolean} needsRedraw - A flag for triggering a redraw of the canvas without re-retrieving the pixel data, since it remains valid + */ + +/** + * An Image Load Object + * + * @typedef {Object} ImageLoadObject + * @memberof Objects + * @property {Promise} promise - The Promise tracking the loading of this image + * @property {Function|undefined} cancelFn - A function to cancel the image load request + */ + +/** + * Retrieves a Cornerstone Enabled Element object + * + * @param {HTMLElement} element An HTML Element enabled for Cornerstone + * + * @returns {EnabledElement} A Cornerstone Enabled Element + * @memberof EnabledElements + */ + +function getEnabledElement(element) { + if (element === undefined) { + throw new Error('getEnabledElement: parameter element must not be undefined'); + } + + for (var i = 0; i < enabledElements.length; i++) { + if (enabledElements[i].element === element) { + return enabledElements[i]; + } + } + + throw new Error('element not enabled'); +} +/** + * Adds a Cornerstone Enabled Element object to the central store of enabledElements + * + * @param {EnabledElement} enabledElement A Cornerstone enabledElement Object + * @returns {void} + * @memberof EnabledElements + */ + +function addEnabledElement(enabledElement) { + if (enabledElement === undefined) { + throw new Error('getEnabledElement: enabledElement element must not be undefined'); + } + + enabledElements.push(enabledElement); +} +/** + * Adds a Cornerstone Enabled Element object to the central store of enabledElements + * + * @param {string} imageId A Cornerstone Image ID + * @returns {EnabledElement[]} An Array of Cornerstone enabledElement Objects + * @memberof EnabledElements + */ + +function getEnabledElementsByImageId(imageId) { + var ees = []; + enabledElements.forEach(function (enabledElement) { + if (enabledElement.image && enabledElement.image.imageId === imageId) { + ees.push(enabledElement); + } + }); + return ees; +} +/** + * Retrieve all of the currently enabled Cornerstone elements + * + * @return {EnabledElement[]} An Array of Cornerstone enabledElement Objects + * @memberof EnabledElements + */ + +function getEnabledElements() { + return enabledElements; +} + +/***/ }), + +/***/ "./events.js": +/*!*******************!*\ + !*** ./events.js ***! + \*******************/ +/*! exports provided: default, events */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "events", function() { return events; }); +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +var EVENTS = { + NEW_IMAGE: 'cornerstonenewimage', + INVALIDATED: 'cornerstoneinvalidated', + PRE_RENDER: 'cornerstoneprerender', + IMAGE_CACHE_MAXIMUM_SIZE_CHANGED: 'cornerstoneimagecachemaximumsizechanged', + IMAGE_CACHE_PROMISE_REMOVED: 'cornerstoneimagecachepromiseremoved', + IMAGE_CACHE_FULL: 'cornerstoneimagecachefull', + IMAGE_CACHE_CHANGED: 'cornerstoneimagecachechanged', + WEBGL_TEXTURE_REMOVED: 'cornerstonewebgltextureremoved', + WEBGL_TEXTURE_CACHE_FULL: 'cornerstonewebgltexturecachefull', + IMAGE_LOADED: 'cornerstoneimageloaded', + IMAGE_LOAD_PROGRESS: 'cornerstoneimageloadprogress', + IMAGE_LOAD_FAILED: 'cornerstoneimageloadfailed', + ELEMENT_RESIZED: 'cornerstoneelementresized', + IMAGE_RENDERED: 'cornerstoneimagerendered', + LAYER_ADDED: 'cornerstonelayeradded', + LAYER_REMOVED: 'cornerstonelayerremoved', + ACTIVE_LAYER_CHANGED: 'cornerstoneactivelayerchanged', + ELEMENT_DISABLED: 'cornerstoneelementdisabled', + ELEMENT_ENABLED: 'cornerstoneelementenabled' +}; +/* harmony default export */ __webpack_exports__["default"] = (EVENTS); +/** + * EventTarget - Provides the [EventTarget](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget) interface + * + * @class + * @memberof Polyfills + */ + +var EventTarget = /*#__PURE__*/function () { + function EventTarget() { + _classCallCheck(this, EventTarget); + + this.listeners = {}; + this.namespaces = {}; + } + + _createClass(EventTarget, [{ + key: "addEventNamespaceListener", + value: function addEventNamespaceListener(type, callback) { + if (type.indexOf('.') <= 0) { + return; + } + + this.namespaces[type] = callback; + this.addEventListener(type.split('.')[0], callback); + } + }, { + key: "removeEventNamespaceListener", + value: function removeEventNamespaceListener(type) { + if (type.indexOf('.') <= 0 || !this.namespaces[type]) { + return; + } + + this.removeEventListener(type.split('.')[0], this.namespaces[type]); + delete this.namespaces[type]; + } + }, { + key: "addEventListener", + value: function addEventListener(type, callback) { + // Check if it is an event namespace + if (type.indexOf('.') > 0) { + this.addEventNamespaceListener(type, callback); + return; + } + + if (!(type in this.listeners)) { + this.listeners[type] = []; + } + + this.listeners[type].push(callback); + } + }, { + key: "removeEventListener", + value: function removeEventListener(type, callback) { + // Check if it is an event namespace + if (type.indexOf('.') > 0) { + this.removeEventNamespaceListener(type); + return; + } + + if (!(type in this.listeners)) { + return; + } + + var stack = this.listeners[type]; + + for (var i = 0, l = stack.length; i < l; i++) { + if (stack[i] === callback) { + stack.splice(i, 1); + return; + } + } + } + }, { + key: "dispatchEvent", + value: function dispatchEvent(event) { + if (!(event.type in this.listeners)) { + return true; + } + + var stack = this.listeners[event.type].slice(); + + for (var i = 0, l = stack.length; i < l; i++) { + stack[i].call(this, event); + } + + return !event.defaultPrevented; + } + }]); + + return EventTarget; +}(); + +var events = new EventTarget(); + +/***/ }), + +/***/ "./falseColorMapping.js": +/*!******************************!*\ + !*** ./falseColorMapping.js ***! + \******************************/ +/*! exports provided: convertImageToFalseColorImage, convertToFalseColorImage, restoreImage */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "convertImageToFalseColorImage", function() { return convertImageToFalseColorImage; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "convertToFalseColorImage", function() { return convertToFalseColorImage; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "restoreImage", function() { return restoreImage; }); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _pixelDataToFalseColorData_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./pixelDataToFalseColorData.js */ "./pixelDataToFalseColorData.js"); +/* harmony import */ var _colors_colormap_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./colors/colormap.js */ "./colors/colormap.js"); + + + +/** + * Retrieves the minimum and maximum pixel values from an Array of pixel data + * + * @param {Array} pixelData The input pixel data array + * + * @returns {{minPixelValue: Number, maxPixelValue: Number}} The minimum and maximum pixel values in the input Array + */ + +function getPixelValues(pixelData) { + var minPixelValue = Number.MAX_VALUE; + var maxPixelValue = Number.MIN_VALUE; + var len = pixelData.length; + var pixel; + + for (var i = 0; i < len; i++) { + pixel = pixelData[i]; + minPixelValue = minPixelValue < pixel ? minPixelValue : pixel; + maxPixelValue = maxPixelValue > pixel ? maxPixelValue : pixel; + } + + return { + minPixelValue: minPixelValue, + maxPixelValue: maxPixelValue + }; +} +/** + * Retrieve a function that will allow an image object to be reset to its original form + * after a false color mapping transformation + * + * @param {Image} image A Cornerstone Image Object + * + * @return {Function} A function for resetting an Image Object to its original form + */ + + +function getRestoreImageMethod(image) { + if (image.restore) { + return image.restore; + } + + var color = image.color; + var rgba = image.rgba; + var cachedLut = image.cachedLut; + var slope = image.slope; + var windowWidth = image.windowWidth; + var windowCenter = image.windowCenter; + var minPixelValue = image.minPixelValue; + var maxPixelValue = image.maxPixelValue; + return function () { + image.color = color; + image.rgba = rgba; + image.cachedLut = cachedLut; + image.slope = slope; + image.windowWidth = windowWidth; + image.windowCenter = windowCenter; + image.minPixelValue = minPixelValue; + image.maxPixelValue = maxPixelValue; + + if (image.origPixelData) { + var pixelData = image.origPixelData; + + image.getPixelData = function () { + return pixelData; + }; + } // Remove some attributes added by false color mapping + + + image.origPixelData = undefined; + image.colormapId = undefined; + image.falseColor = undefined; + }; +} // +// Then we need to make sure it will be converted into a colormap object if it's as string. + +/** + * User can pass a colormap or its id as string to some of these public functions. + * Then we need to make sure it will be converted into a colormap object if it's a string. + * + * @param {*} colormap A colormap ID or Object + * @return {*} The colormap + */ + + +function ensuresColormap(colormap) { + if (colormap && typeof colormap === 'string') { + colormap = Object(_colors_colormap_js__WEBPACK_IMPORTED_MODULE_2__["getColormap"])(colormap); + } + + return colormap; +} +/** + * Restores a false color image to its original version + * + * @param {Image} image A Cornerstone Image Object + * @returns {Boolean} True if the image object had a valid restore function, which was run. Otherwise, false. + */ + + +function restoreImage(image) { + if (image.restore && typeof image.restore === 'function') { + image.restore(); + return true; + } + + return false; +} +/** + * Convert an image to a false color image + * + * @param {Image} image A Cornerstone Image Object + * @param {String|Object} colormap - it can be a colormap object or a colormap id (string) + * + * @returns {Boolean} - Whether or not the image has been converted to a false color image + */ + + +function convertImageToFalseColorImage(image, colormap) { + if (image.color && !image.falseColor) { + throw new Error('Color transforms are not implemented yet'); + } // User can pass a colormap id or a colormap object + + + colormap = ensuresColormap(colormap); + var colormapId = colormap.getId(); // Doesn't do anything if colormapId hasn't changed + + if (image.colormapId === colormapId) { + // It has already being converted into a false color image + // Using the colormapId passed as parameter + return false; + } // Restore the image attributes updated when converting to a false color image + + + restoreImage(image); // Convert the image to a false color image + + if (colormapId) { + var minPixelValue = image.minPixelValue || 0; + var maxPixelValue = image.maxPixelValue || 255; + image.restore = getRestoreImageMethod(image); + var lookupTable = colormap.createLookupTable(); + lookupTable.setTableRange(minPixelValue, maxPixelValue); // Update the pixel data and render the new image + + Object(_pixelDataToFalseColorData_js__WEBPACK_IMPORTED_MODULE_1__["default"])(image, lookupTable); // Update min and max pixel values + + var pixelValues = getPixelValues(image.getPixelData()); + image.minPixelValue = pixelValues.minPixelValue; + image.maxPixelValue = pixelValues.maxPixelValue; + image.windowWidth = 255; + image.windowCenter = 128; // Cache the last colormapId used for performance + // Then it doesn't need to be re-rendered on next + // Time if the user hasn't updated it + + image.colormapId = colormapId; + } // Return `true` to tell the caller that the image has got updated + + + return true; +} +/** + * Convert the image of a element to a false color image + * + * @param {HTMLElement} element The Cornerstone element + * @param {*} colormap - it can be a colormap object or a colormap id (string) + * + * @returns {void} + */ + + +function convertToFalseColorImage(element, colormap) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + return convertImageToFalseColorImage(enabledElement.image, colormap); +} + + + +/***/ }), + +/***/ "./fitToWindow.js": +/*!************************!*\ + !*** ./fitToWindow.js ***! + \************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _updateImage_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./updateImage.js */ "./updateImage.js"); +/* harmony import */ var _internal_getImageFitScale_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./internal/getImageFitScale.js */ "./internal/getImageFitScale.js"); + + + +/** + * Adjusts an image's scale and translation so the image is centered and all pixels + * in the image are viewable. + * + * @param {HTMLElement} element The Cornerstone element to update + * @returns {void} + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + var image = enabledElement.image; // The new scale is the minimum of the horizontal and vertical scale values + + enabledElement.viewport.scale = Object(_internal_getImageFitScale_js__WEBPACK_IMPORTED_MODULE_2__["default"])(enabledElement.canvas, image, enabledElement.viewport.rotation).scaleFactor; + enabledElement.viewport.translation.x = 0; + enabledElement.viewport.translation.y = 0; + Object(_updateImage_js__WEBPACK_IMPORTED_MODULE_1__["default"])(element); +}); + +/***/ }), + +/***/ "./generateUUID.js": +/*!*************************!*\ + !*** ./generateUUID.js ***! + \*************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/** +* Generates a UUID for the enabledElement. +* +* @return {String} the UUID. +*/ +/* harmony default export */ __webpack_exports__["default"] = (function () { + // https://stackoverflow.com/a/8809472/9208320 Public Domain/MIT + + /* eslint no-bitwise: ["error", { "allow": ["&","|"] }] */ + var d = new Date().getTime(); + + if (typeof performance !== 'undefined' && typeof performance.now === 'function') { + d += performance.now(); // Use high-precision timer if available + } + + return 'x.x.x.x.x.x.xxxx.xxx.x.x.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'.replace(/[xy]/g, function (c) { + var r = (d + Math.random() * 16) % 16 | 0; + d = Math.floor(d / 16); + return (c === 'x' ? r : r & 0x3 | 0x8).toString(16); + }); +}); + +/***/ }), + +/***/ "./getDefaultViewportForImage.js": +/*!***************************************!*\ + !*** ./getDefaultViewportForImage.js ***! + \***************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./internal/getDefaultViewport.js */ "./internal/getDefaultViewport.js"); + + +/** + * Returns a default viewport for display the specified image on the specified + * enabled element. The default viewport is fit to window + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @param {Image} image A Cornerstone Image Object + * + * @returns {Viewport} The default viewport for the image + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element, image) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + return Object(_internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_1__["default"])(enabledElement.canvas, image); +}); + +/***/ }), + +/***/ "./getImage.js": +/*!*********************!*\ + !*** ./getImage.js ***! + \*********************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); + +/** + * Returns the currently displayed image for an element or undefined if no image has + * been displayed yet + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @returns {Image} The Cornerstone Image Object displayed in this element + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + return enabledElement.image; +}); + +/***/ }), + +/***/ "./getPixels.js": +/*!**********************!*\ + !*** ./getPixels.js ***! + \**********************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _getStoredPixels_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./getStoredPixels.js */ "./getStoredPixels.js"); +/* harmony import */ var _internal_getModalityLUT_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./internal/getModalityLUT.js */ "./internal/getModalityLUT.js"); + + + +/** + * Retrieves an array of pixels from a rectangular region with modality LUT transformation applied + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @param {Number} x The x coordinate of the top left corner of the sampling rectangle in image coordinates + * @param {Number} y The y coordinate of the top left corner of the sampling rectangle in image coordinates + * @param {Number} width The width of the of the sampling rectangle in image coordinates + * @param {Number} height The height of the of the sampling rectangle in image coordinates + * @returns {Array} The modality pixel value of the pixels in the sampling rectangle + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element, x, y, width, height) { + var storedPixels = Object(_getStoredPixels_js__WEBPACK_IMPORTED_MODULE_1__["default"])(element, x, y, width, height); + var ee = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + var mlutfn = Object(_internal_getModalityLUT_js__WEBPACK_IMPORTED_MODULE_2__["default"])(ee.image.slope, ee.image.intercept, ee.viewport.modalityLUT); + return storedPixels.map(mlutfn); +}); + +/***/ }), + +/***/ "./getStoredPixels.js": +/*!****************************!*\ + !*** ./getStoredPixels.js ***! + \****************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); + +/** + * Retrieves an array of stored pixel values from a rectangular region of an image + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @param {Number} x The x coordinate of the top left corner of the sampling rectangle in image coordinates + * @param {Number} y The y coordinate of the top left corner of the sampling rectangle in image coordinates + * @param {Number} width The width of the of the sampling rectangle in image coordinates + * @param {Number} height The height of the of the sampling rectangle in image coordinates + * @returns {Array} The stored pixel value of the pixels in the sampling rectangle + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element, x, y, width, height) { + if (element === undefined) { + throw new Error('getStoredPixels: parameter element must not be undefined'); + } + + x = Math.round(x); + y = Math.round(y); + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + var storedPixels = []; + var index = 0; + var pixelData = enabledElement.image.getPixelData(); + + for (var row = 0; row < height; row++) { + for (var column = 0; column < width; column++) { + var spIndex = (row + y) * enabledElement.image.columns + (column + x); + storedPixels[index++] = pixelData[spIndex]; + } + } + + return storedPixels; +}); + +/***/ }), + +/***/ "./getViewport.js": +/*!************************!*\ + !*** ./getViewport.js ***! + \************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); + +/** + * Retrieves the viewport for the specified enabled element + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @returns {Viewport|undefined} The Cornerstone Viewport settings for this element, if they exist. Otherwise, undefined + * @memberof ViewportSettings + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + var viewport = enabledElement.viewport; + + if (viewport === undefined) { + return; + } // Return a copy of the viewport + + + return Object.assign({}, viewport); +}); + +/***/ }), + +/***/ "./imageCache.js": +/*!***********************!*\ + !*** ./imageCache.js ***! + \***********************/ +/*! exports provided: cachedImages, setMaximumSizeBytes, putImageLoadObject, getImageLoadObject, removeImageLoadObject, getCacheInfo, purgeCache, changeImageIdCacheSize, default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "cachedImages", function() { return cachedImages; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setMaximumSizeBytes", function() { return setMaximumSizeBytes; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "putImageLoadObject", function() { return putImageLoadObject; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getImageLoadObject", function() { return getImageLoadObject; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "removeImageLoadObject", function() { return removeImageLoadObject; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getCacheInfo", function() { return getCacheInfo; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "purgeCache", function() { return purgeCache; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "changeImageIdCacheSize", function() { return changeImageIdCacheSize; }); +/* harmony import */ var _events_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./events.js */ "./events.js"); +/* harmony import */ var _triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./triggerEvent.js */ "./triggerEvent.js"); + + +/** + * This module deals with caching images + * @module ImageCache + */ + +var maximumSizeInBytes = 1024 * 1024 * 1024; // 1 GB + +var cacheSizeInBytes = 0; // Dictionary of imageId to cachedImage objects + +var imageCacheDict = {}; // Array of cachedImage objects + +var cachedImages = []; +/** Sets the maximum size of cache and purges cache contents if necessary. + * + * @param {number} numBytes The maximun size that the cache should occupy. + * @returns {void} + */ + +function setMaximumSizeBytes(numBytes) { + if (numBytes === undefined) { + throw new Error('setMaximumSizeBytes: parameter numBytes must not be undefined'); + } + + if (numBytes.toFixed === undefined) { + throw new Error('setMaximumSizeBytes: parameter numBytes must be a number'); + } + + maximumSizeInBytes = numBytes; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__["default"])(_events_js__WEBPACK_IMPORTED_MODULE_0__["events"], _events_js__WEBPACK_IMPORTED_MODULE_0__["default"].IMAGE_CACHE_MAXIMUM_SIZE_CHANGED); + purgeCacheIfNecessary(); +} +/** + * Purges the cache if size exceeds maximum + * @returns {void} + */ + +function purgeCacheIfNecessary() { + // If max cache size has not been exceeded, do nothing + if (cacheSizeInBytes <= maximumSizeInBytes) { + return; + } // Cache size has been exceeded, create list of images sorted by timeStamp + // So we can purge the least recently used image + + + function compare(a, b) { + if (a.timeStamp > b.timeStamp) { + return -1; + } + + if (a.timeStamp < b.timeStamp) { + return 1; + } + + return 0; + } + + cachedImages.sort(compare); // Remove images as necessary) + + while (cacheSizeInBytes > maximumSizeInBytes) { + var lastCachedImage = cachedImages[cachedImages.length - 1]; + var imageId = lastCachedImage.imageId; + removeImageLoadObject(imageId); + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__["default"])(_events_js__WEBPACK_IMPORTED_MODULE_0__["events"], _events_js__WEBPACK_IMPORTED_MODULE_0__["default"].IMAGE_CACHE_PROMISE_REMOVED, { + imageId: imageId + }); + } + + var cacheInfo = getCacheInfo(); + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__["default"])(_events_js__WEBPACK_IMPORTED_MODULE_0__["events"], _events_js__WEBPACK_IMPORTED_MODULE_0__["default"].IMAGE_CACHE_FULL, cacheInfo); +} +/** + * Puts a new image loader into the cache + * + * @param {string} imageId ImageId of the image loader + * @param {Object} imageLoadObject The object that is loading or loaded the image + * @returns {void} + */ + + +function putImageLoadObject(imageId, imageLoadObject) { + if (imageId === undefined) { + throw new Error('putImageLoadObject: imageId must not be undefined'); + } + + if (imageLoadObject.promise === undefined) { + throw new Error('putImageLoadObject: imageLoadObject.promise must not be undefined'); + } + + if (imageCacheDict.hasOwnProperty(imageId) === true) { + throw new Error('putImageLoadObject: imageId already in cache'); + } + + if (imageLoadObject.cancelFn && typeof imageLoadObject.cancelFn !== 'function') { + throw new Error('putImageLoadObject: imageLoadObject.cancelFn must be a function'); + } + + var cachedImage = { + loaded: false, + imageId: imageId, + sharedCacheKey: undefined, + // The sharedCacheKey for this imageId. undefined by default + imageLoadObject: imageLoadObject, + timeStamp: Date.now(), + sizeInBytes: 0 + }; + imageCacheDict[imageId] = cachedImage; + cachedImages.push(cachedImage); + imageLoadObject.promise.then(function (image) { + if (cachedImages.indexOf(cachedImage) === -1) { + // If the image has been purged before being loaded, we stop here. + return; + } + + cachedImage.loaded = true; + cachedImage.image = image; + + if (image.sizeInBytes === undefined) { + throw new Error('putImageLoadObject: image.sizeInBytes must not be undefined'); + } + + if (image.sizeInBytes.toFixed === undefined) { + throw new Error('putImageLoadObject: image.sizeInBytes is not a number'); + } + + cachedImage.sizeInBytes = image.sizeInBytes; + cacheSizeInBytes += cachedImage.sizeInBytes; + var eventDetails = { + action: 'addImage', + image: cachedImage + }; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__["default"])(_events_js__WEBPACK_IMPORTED_MODULE_0__["events"], _events_js__WEBPACK_IMPORTED_MODULE_0__["default"].IMAGE_CACHE_CHANGED, eventDetails); + cachedImage.sharedCacheKey = image.sharedCacheKey; + purgeCacheIfNecessary(); + }, function () { + var cachedImage = imageCacheDict[imageId]; + cachedImages.splice(cachedImages.indexOf(cachedImage), 1); + delete imageCacheDict[imageId]; + }); +} +/** + * Retuns the object that is loading a given imageId + * + * @param {string} imageId Image ID + * @returns {void} + */ + +function getImageLoadObject(imageId) { + if (imageId === undefined) { + throw new Error('getImageLoadObject: imageId must not be undefined'); + } + + var cachedImage = imageCacheDict[imageId]; + + if (cachedImage === undefined) { + return; + } // Bump time stamp for cached image + + + cachedImage.timeStamp = Date.now(); + return cachedImage.imageLoadObject; +} +/** + * Removes the image loader associated with a given Id from the cache + * + * @param {string} imageId Image ID + * @returns {void} + */ + +function removeImageLoadObject(imageId) { + if (imageId === undefined) { + throw new Error('removeImageLoadObject: imageId must not be undefined'); + } + + var cachedImage = imageCacheDict[imageId]; + + if (cachedImage === undefined) { + throw new Error('removeImageLoadObject: imageId was not present in imageCache'); + } + + cachedImages.splice(cachedImages.indexOf(cachedImage), 1); + cacheSizeInBytes -= cachedImage.sizeInBytes; + var eventDetails = { + action: 'deleteImage', + image: cachedImage + }; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__["default"])(_events_js__WEBPACK_IMPORTED_MODULE_0__["events"], _events_js__WEBPACK_IMPORTED_MODULE_0__["default"].IMAGE_CACHE_CHANGED, eventDetails); + decache(cachedImage.imageLoadObject); + delete imageCacheDict[imageId]; +} +/** + * @typedef {Object} CacheInformation + * @property {number} maximumSizeInBytes The maximum size of the cache in bytes + * @property {number} cacheSizeInBytes Currently occupied space in the cache in bytes + * @property {number} numberOfImagesCached Number of ImageLoaders in the cache + * @returns {void} + */ + +/** + * Gets the current state of the cache + * @returns {void} + */ + +function getCacheInfo() { + return { + maximumSizeInBytes: maximumSizeInBytes, + cacheSizeInBytes: cacheSizeInBytes, + numberOfImagesCached: cachedImages.length + }; +} // This method should only be called by `removeImageLoadObject` because it's +// The one that knows how to deal with shared cache keys and cache size. + +/** + * INTERNAL: Removes and ImageLoader from the cache + * + * @param {Object} imageLoadObject Image Loader Object to remove + * @returns {void} + */ + +function decache(imageLoadObject) { + imageLoadObject.promise.then(function () { + if (imageLoadObject.decache) { + imageLoadObject.decache(); + } + }, function () { + if (imageLoadObject.decache) { + imageLoadObject.decache(); + } + }); +} +/** + * Removes all images from cache + * @returns {void} + */ + + +function purgeCache() { + while (cachedImages.length > 0) { + var removedCachedImage = cachedImages[0]; + removeImageLoadObject(removedCachedImage.imageId); + } +} +/** + * Updates the space than an image is using in the cache + * + * @param {string} imageId Image ID + * @param {number} newCacheSize New image size + * @returns {void} + */ + +function changeImageIdCacheSize(imageId, newCacheSize) { + var cacheEntry = imageCacheDict[imageId]; + + if (cacheEntry) { + cacheEntry.imageLoadObject.promise.then(function (image) { + var cacheSizeDifference = newCacheSize - image.sizeInBytes; + image.sizeInBytes = newCacheSize; + cacheEntry.sizeInBytes = newCacheSize; + cacheSizeInBytes += cacheSizeDifference; + var eventDetails = { + action: 'changeImageSize', + image: image + }; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__["default"])(_events_js__WEBPACK_IMPORTED_MODULE_0__["events"], _events_js__WEBPACK_IMPORTED_MODULE_0__["default"].IMAGE_CACHE_CHANGED, eventDetails); + }); + } +} +/* harmony default export */ __webpack_exports__["default"] = ({ + imageCache: imageCacheDict, + cachedImages: cachedImages, + setMaximumSizeBytes: setMaximumSizeBytes, + putImageLoadObject: putImageLoadObject, + getImageLoadObject: getImageLoadObject, + removeImageLoadObject: removeImageLoadObject, + getCacheInfo: getCacheInfo, + purgeCache: purgeCache, + changeImageIdCacheSize: changeImageIdCacheSize +}); + +/***/ }), + +/***/ "./imageLoader.js": +/*!************************!*\ + !*** ./imageLoader.js ***! + \************************/ +/*! exports provided: loadImage, loadAndCacheImage, registerImageLoader, registerUnknownImageLoader */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "loadImage", function() { return loadImage; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "loadAndCacheImage", function() { return loadAndCacheImage; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "registerImageLoader", function() { return registerImageLoader; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "registerUnknownImageLoader", function() { return registerUnknownImageLoader; }); +/* harmony import */ var _imageCache_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./imageCache.js */ "./imageCache.js"); +/* harmony import */ var _events_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./events.js */ "./events.js"); +/* harmony import */ var _triggerEvent_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./triggerEvent.js */ "./triggerEvent.js"); + + + +/** + * This module deals with ImageLoaders, loading images and caching images + * @module ImageLoader + */ + +var imageLoaders = {}; +var unknownImageLoader; +/** + * Load an image using a registered Cornerstone Image Loader. + * + * The image loader that is used will be + * determined by the image loader scheme matching against the imageId. + * + * @param {String} imageId A Cornerstone Image Object's imageId + * @param {Object} [options] Options to be passed to the Image Loader + * + * @returns {ImageLoadObject} An Object which can be used to act after an image is loaded or loading fails + * @memberof ImageLoader + */ + +function loadImageFromImageLoader(imageId, options) { + var colonIndex = imageId.indexOf(':'); + var scheme = imageId.substring(0, colonIndex); + var loader = imageLoaders[scheme]; + + if (loader === undefined || loader === null) { + if (unknownImageLoader !== undefined) { + return unknownImageLoader(imageId); + } + + throw new Error('loadImageFromImageLoader: no image loader for imageId'); + } + + var imageLoadObject = loader(imageId, options); // Broadcast an image loaded event once the image is loaded + + imageLoadObject.promise.then(function (image) { + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_2__["default"])(_events_js__WEBPACK_IMPORTED_MODULE_1__["events"], _events_js__WEBPACK_IMPORTED_MODULE_1__["default"].IMAGE_LOADED, { + image: image + }); + }, function (error) { + var errorObject = { + imageId: imageId, + error: error + }; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_2__["default"])(_events_js__WEBPACK_IMPORTED_MODULE_1__["events"], _events_js__WEBPACK_IMPORTED_MODULE_1__["default"].IMAGE_LOAD_FAILED, errorObject); + }); + return imageLoadObject; +} +/** + * Loads an image given an imageId and optional priority and returns a promise which will resolve to + * the loaded image object or fail if an error occurred. The loaded image is not stored in the cache. + * + * @param {String} imageId A Cornerstone Image Object's imageId + * @param {Object} [options] Options to be passed to the Image Loader + * + * @returns {ImageLoadObject} An Object which can be used to act after an image is loaded or loading fails + * @memberof ImageLoader + */ + + +function loadImage(imageId, options) { + if (imageId === undefined) { + throw new Error('loadImage: parameter imageId must not be undefined'); + } + + var imageLoadObject = Object(_imageCache_js__WEBPACK_IMPORTED_MODULE_0__["getImageLoadObject"])(imageId); + + if (imageLoadObject !== undefined) { + return imageLoadObject.promise; + } + + return loadImageFromImageLoader(imageId, options).promise; +} // + +/** + * Loads an image given an imageId and optional priority and returns a promise which will resolve to + * the loaded image object or fail if an error occurred. The image is stored in the cache. + * + * @param {String} imageId A Cornerstone Image Object's imageId + * @param {Object} [options] Options to be passed to the Image Loader + * + * @returns {ImageLoadObject} Image Loader Object + * @memberof ImageLoader + */ + +function loadAndCacheImage(imageId, options) { + if (imageId === undefined) { + throw new Error('loadAndCacheImage: parameter imageId must not be undefined'); + } + + var imageLoadObject = Object(_imageCache_js__WEBPACK_IMPORTED_MODULE_0__["getImageLoadObject"])(imageId); + + if (imageLoadObject !== undefined) { + return imageLoadObject.promise; + } + + imageLoadObject = loadImageFromImageLoader(imageId, options); + Object(_imageCache_js__WEBPACK_IMPORTED_MODULE_0__["putImageLoadObject"])(imageId, imageLoadObject); + return imageLoadObject.promise; +} +/** + * Registers an imageLoader plugin with cornerstone for the specified scheme + * + * @param {String} scheme The scheme to use for this image loader (e.g. 'dicomweb', 'wadouri', 'http') + * @param {Function} imageLoader A Cornerstone Image Loader function + * @returns {void} + * @memberof ImageLoader + */ + +function registerImageLoader(scheme, imageLoader) { + imageLoaders[scheme] = imageLoader; +} +/** + * Registers a new unknownImageLoader and returns the previous one + * + * @param {Function} imageLoader A Cornerstone Image Loader + * + * @returns {Function|Undefined} The previous Unknown Image Loader + * @memberof ImageLoader + */ + +function registerUnknownImageLoader(imageLoader) { + var oldImageLoader = unknownImageLoader; + unknownImageLoader = imageLoader; + return oldImageLoader; +} + +/***/ }), + +/***/ "./index.js": +/*!******************!*\ + !*** ./index.js ***! + \******************/ +/*! exports provided: drawImage, generateLut, getDefaultViewport, setDefaultViewport, requestAnimationFrame, storedPixelDataToCanvasImageData, storedColorPixelDataToCanvasImageData, storedPixelDataToCanvasImageDataColorLUT, storedPixelDataToCanvasImageDataPseudocolorLUT, internal, renderLabelMapImage, renderPseudoColorImage, renderColorImage, renderGrayscaleImage, renderWebImage, renderToCanvas, canvasToPixel, disable, displayImage, draw, drawInvalidated, enable, getElementData, removeElementData, getEnabledElement, addEnabledElement, getEnabledElementsByImageId, getEnabledElements, addLayer, removeLayer, getLayer, getLayers, getVisibleLayers, setActiveLayer, getActiveLayer, purgeLayers, setLayerImage, fitToWindow, getDefaultViewportForImage, getDisplayedArea, getImage, getPixels, getStoredPixels, getViewport, loadImage, loadAndCacheImage, registerImageLoader, registerUnknownImageLoader, invalidate, invalidateImageId, pageToPixel, pixelToCanvas, reset, resize, setToPixelCoordinateSystem, setViewport, updateImage, pixelDataToFalseColorData, rendering, imageCache, metaData, webGL, colors, convertImageToFalseColorImage, convertToFalseColorImage, restoreImage, EVENTS, events, triggerEvent, imageLoadPoolManager, imageRetrievalPoolManager, RequestPoolManager, default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _events_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./events.js */ "./events.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "EVENTS", function() { return _events_js__WEBPACK_IMPORTED_MODULE_0__["default"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "events", function() { return _events_js__WEBPACK_IMPORTED_MODULE_0__["events"]; }); + +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getEnabledElement", function() { return _enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "addEnabledElement", function() { return _enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["addEnabledElement"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getEnabledElementsByImageId", function() { return _enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElementsByImageId"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getEnabledElements", function() { return _enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElements"]; }); + +/* harmony import */ var _layers_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./layers.js */ "./layers.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "addLayer", function() { return _layers_js__WEBPACK_IMPORTED_MODULE_2__["addLayer"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "removeLayer", function() { return _layers_js__WEBPACK_IMPORTED_MODULE_2__["removeLayer"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getLayer", function() { return _layers_js__WEBPACK_IMPORTED_MODULE_2__["getLayer"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getLayers", function() { return _layers_js__WEBPACK_IMPORTED_MODULE_2__["getLayers"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getVisibleLayers", function() { return _layers_js__WEBPACK_IMPORTED_MODULE_2__["getVisibleLayers"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "setActiveLayer", function() { return _layers_js__WEBPACK_IMPORTED_MODULE_2__["setActiveLayer"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getActiveLayer", function() { return _layers_js__WEBPACK_IMPORTED_MODULE_2__["getActiveLayer"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "purgeLayers", function() { return _layers_js__WEBPACK_IMPORTED_MODULE_2__["purgeLayers"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "setLayerImage", function() { return _layers_js__WEBPACK_IMPORTED_MODULE_2__["setLayerImage"]; }); + +/* harmony import */ var _falseColorMapping_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./falseColorMapping.js */ "./falseColorMapping.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "convertImageToFalseColorImage", function() { return _falseColorMapping_js__WEBPACK_IMPORTED_MODULE_3__["convertImageToFalseColorImage"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "convertToFalseColorImage", function() { return _falseColorMapping_js__WEBPACK_IMPORTED_MODULE_3__["convertToFalseColorImage"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "restoreImage", function() { return _falseColorMapping_js__WEBPACK_IMPORTED_MODULE_3__["restoreImage"]; }); + +/* harmony import */ var _enabledElementData_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./enabledElementData.js */ "./enabledElementData.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getElementData", function() { return _enabledElementData_js__WEBPACK_IMPORTED_MODULE_4__["getElementData"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "removeElementData", function() { return _enabledElementData_js__WEBPACK_IMPORTED_MODULE_4__["removeElementData"]; }); + +/* harmony import */ var _imageLoader_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./imageLoader.js */ "./imageLoader.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "loadImage", function() { return _imageLoader_js__WEBPACK_IMPORTED_MODULE_5__["loadImage"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "loadAndCacheImage", function() { return _imageLoader_js__WEBPACK_IMPORTED_MODULE_5__["loadAndCacheImage"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "registerImageLoader", function() { return _imageLoader_js__WEBPACK_IMPORTED_MODULE_5__["registerImageLoader"]; }); + +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "registerUnknownImageLoader", function() { return _imageLoader_js__WEBPACK_IMPORTED_MODULE_5__["registerUnknownImageLoader"]; }); + +/* harmony import */ var _requestPool_imageLoadPoolManager_ts__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./requestPool/imageLoadPoolManager.ts */ "./requestPool/imageLoadPoolManager.ts"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "imageLoadPoolManager", function() { return _requestPool_imageLoadPoolManager_ts__WEBPACK_IMPORTED_MODULE_6__["default"]; }); + +/* harmony import */ var _requestPool_imageRetrievalPoolManager_ts__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./requestPool/imageRetrievalPoolManager.ts */ "./requestPool/imageRetrievalPoolManager.ts"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "imageRetrievalPoolManager", function() { return _requestPool_imageRetrievalPoolManager_ts__WEBPACK_IMPORTED_MODULE_7__["default"]; }); + +/* harmony import */ var _requestPool_RequestPoolManager_ts__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./requestPool/RequestPoolManager.ts */ "./requestPool/RequestPoolManager.ts"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "RequestPoolManager", function() { return _requestPool_RequestPoolManager_ts__WEBPACK_IMPORTED_MODULE_8__["RequestPoolManager"]; }); + +/* harmony import */ var _canvasToPixel_js__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./canvasToPixel.js */ "./canvasToPixel.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "canvasToPixel", function() { return _canvasToPixel_js__WEBPACK_IMPORTED_MODULE_9__["default"]; }); + +/* harmony import */ var _colors_index_js__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./colors/index.js */ "./colors/index.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "colors", function() { return _colors_index_js__WEBPACK_IMPORTED_MODULE_10__["default"]; }); + +/* harmony import */ var _disable_js__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./disable.js */ "./disable.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "disable", function() { return _disable_js__WEBPACK_IMPORTED_MODULE_11__["default"]; }); + +/* harmony import */ var _displayImage_js__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./displayImage.js */ "./displayImage.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "displayImage", function() { return _displayImage_js__WEBPACK_IMPORTED_MODULE_12__["default"]; }); + +/* harmony import */ var _draw_js__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ./draw.js */ "./draw.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "draw", function() { return _draw_js__WEBPACK_IMPORTED_MODULE_13__["default"]; }); + +/* harmony import */ var _internal_drawImage_js__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! ./internal/drawImage.js */ "./internal/drawImage.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "drawImage", function() { return _internal_drawImage_js__WEBPACK_IMPORTED_MODULE_14__["default"]; }); + +/* harmony import */ var _drawInvalidated_js__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! ./drawInvalidated.js */ "./drawInvalidated.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "drawInvalidated", function() { return _drawInvalidated_js__WEBPACK_IMPORTED_MODULE_15__["default"]; }); + +/* harmony import */ var _enable_js__WEBPACK_IMPORTED_MODULE_16__ = __webpack_require__(/*! ./enable.js */ "./enable.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "enable", function() { return _enable_js__WEBPACK_IMPORTED_MODULE_16__["default"]; }); + +/* harmony import */ var _fitToWindow_js__WEBPACK_IMPORTED_MODULE_17__ = __webpack_require__(/*! ./fitToWindow.js */ "./fitToWindow.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "fitToWindow", function() { return _fitToWindow_js__WEBPACK_IMPORTED_MODULE_17__["default"]; }); + +/* harmony import */ var _internal_generateLut_js__WEBPACK_IMPORTED_MODULE_18__ = __webpack_require__(/*! ./internal/generateLut.js */ "./internal/generateLut.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "generateLut", function() { return _internal_generateLut_js__WEBPACK_IMPORTED_MODULE_18__["default"]; }); + +/* harmony import */ var _internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_19__ = __webpack_require__(/*! ./internal/getDefaultViewport.js */ "./internal/getDefaultViewport.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getDefaultViewport", function() { return _internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_19__["default"]; }); + +/* harmony import */ var _getDefaultViewportForImage_js__WEBPACK_IMPORTED_MODULE_20__ = __webpack_require__(/*! ./getDefaultViewportForImage.js */ "./getDefaultViewportForImage.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getDefaultViewportForImage", function() { return _getDefaultViewportForImage_js__WEBPACK_IMPORTED_MODULE_20__["default"]; }); + +/* harmony import */ var _internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_21__ = __webpack_require__(/*! ./internal/getDisplayedArea.js */ "./internal/getDisplayedArea.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getDisplayedArea", function() { return _internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_21__["default"]; }); + +/* harmony import */ var _getImage_js__WEBPACK_IMPORTED_MODULE_22__ = __webpack_require__(/*! ./getImage.js */ "./getImage.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getImage", function() { return _getImage_js__WEBPACK_IMPORTED_MODULE_22__["default"]; }); + +/* harmony import */ var _getPixels_js__WEBPACK_IMPORTED_MODULE_23__ = __webpack_require__(/*! ./getPixels.js */ "./getPixels.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getPixels", function() { return _getPixels_js__WEBPACK_IMPORTED_MODULE_23__["default"]; }); + +/* harmony import */ var _getStoredPixels_js__WEBPACK_IMPORTED_MODULE_24__ = __webpack_require__(/*! ./getStoredPixels.js */ "./getStoredPixels.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getStoredPixels", function() { return _getStoredPixels_js__WEBPACK_IMPORTED_MODULE_24__["default"]; }); + +/* harmony import */ var _getViewport_js__WEBPACK_IMPORTED_MODULE_25__ = __webpack_require__(/*! ./getViewport.js */ "./getViewport.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getViewport", function() { return _getViewport_js__WEBPACK_IMPORTED_MODULE_25__["default"]; }); + +/* harmony import */ var _imageCache_js__WEBPACK_IMPORTED_MODULE_26__ = __webpack_require__(/*! ./imageCache.js */ "./imageCache.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "imageCache", function() { return _imageCache_js__WEBPACK_IMPORTED_MODULE_26__["default"]; }); + +/* harmony import */ var _internal_index_js__WEBPACK_IMPORTED_MODULE_27__ = __webpack_require__(/*! ./internal/index.js */ "./internal/index.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "internal", function() { return _internal_index_js__WEBPACK_IMPORTED_MODULE_27__["default"]; }); + +/* harmony import */ var _invalidate_js__WEBPACK_IMPORTED_MODULE_28__ = __webpack_require__(/*! ./invalidate.js */ "./invalidate.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "invalidate", function() { return _invalidate_js__WEBPACK_IMPORTED_MODULE_28__["default"]; }); + +/* harmony import */ var _invalidateImageId_js__WEBPACK_IMPORTED_MODULE_29__ = __webpack_require__(/*! ./invalidateImageId.js */ "./invalidateImageId.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "invalidateImageId", function() { return _invalidateImageId_js__WEBPACK_IMPORTED_MODULE_29__["default"]; }); + +/* harmony import */ var _metaData_js__WEBPACK_IMPORTED_MODULE_30__ = __webpack_require__(/*! ./metaData.js */ "./metaData.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "metaData", function() { return _metaData_js__WEBPACK_IMPORTED_MODULE_30__["default"]; }); + +/* harmony import */ var _pageToPixel_js__WEBPACK_IMPORTED_MODULE_31__ = __webpack_require__(/*! ./pageToPixel.js */ "./pageToPixel.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "pageToPixel", function() { return _pageToPixel_js__WEBPACK_IMPORTED_MODULE_31__["default"]; }); + +/* harmony import */ var _pixelDataToFalseColorData_js__WEBPACK_IMPORTED_MODULE_32__ = __webpack_require__(/*! ./pixelDataToFalseColorData.js */ "./pixelDataToFalseColorData.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "pixelDataToFalseColorData", function() { return _pixelDataToFalseColorData_js__WEBPACK_IMPORTED_MODULE_32__["default"]; }); + +/* harmony import */ var _pixelToCanvas_js__WEBPACK_IMPORTED_MODULE_33__ = __webpack_require__(/*! ./pixelToCanvas.js */ "./pixelToCanvas.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "pixelToCanvas", function() { return _pixelToCanvas_js__WEBPACK_IMPORTED_MODULE_33__["default"]; }); + +/* harmony import */ var _rendering_renderColorImage_js__WEBPACK_IMPORTED_MODULE_34__ = __webpack_require__(/*! ./rendering/renderColorImage.js */ "./rendering/renderColorImage.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "renderColorImage", function() { return _rendering_renderColorImage_js__WEBPACK_IMPORTED_MODULE_34__["renderColorImage"]; }); + +/* harmony import */ var _rendering_renderGrayscaleImage_js__WEBPACK_IMPORTED_MODULE_35__ = __webpack_require__(/*! ./rendering/renderGrayscaleImage.js */ "./rendering/renderGrayscaleImage.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "renderGrayscaleImage", function() { return _rendering_renderGrayscaleImage_js__WEBPACK_IMPORTED_MODULE_35__["renderGrayscaleImage"]; }); + +/* harmony import */ var _rendering_renderLabelMapImage_js__WEBPACK_IMPORTED_MODULE_36__ = __webpack_require__(/*! ./rendering/renderLabelMapImage.js */ "./rendering/renderLabelMapImage.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "renderLabelMapImage", function() { return _rendering_renderLabelMapImage_js__WEBPACK_IMPORTED_MODULE_36__["renderLabelMapImage"]; }); + +/* harmony import */ var _rendering_renderPseudoColorImage_js__WEBPACK_IMPORTED_MODULE_37__ = __webpack_require__(/*! ./rendering/renderPseudoColorImage.js */ "./rendering/renderPseudoColorImage.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "renderPseudoColorImage", function() { return _rendering_renderPseudoColorImage_js__WEBPACK_IMPORTED_MODULE_37__["renderPseudoColorImage"]; }); + +/* harmony import */ var _rendering_renderToCanvas_js__WEBPACK_IMPORTED_MODULE_38__ = __webpack_require__(/*! ./rendering/renderToCanvas.js */ "./rendering/renderToCanvas.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "renderToCanvas", function() { return _rendering_renderToCanvas_js__WEBPACK_IMPORTED_MODULE_38__["default"]; }); + +/* harmony import */ var _rendering_renderWebImage_js__WEBPACK_IMPORTED_MODULE_39__ = __webpack_require__(/*! ./rendering/renderWebImage.js */ "./rendering/renderWebImage.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "renderWebImage", function() { return _rendering_renderWebImage_js__WEBPACK_IMPORTED_MODULE_39__["renderWebImage"]; }); + +/* harmony import */ var _rendering_index_js__WEBPACK_IMPORTED_MODULE_40__ = __webpack_require__(/*! ./rendering/index.js */ "./rendering/index.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "rendering", function() { return _rendering_index_js__WEBPACK_IMPORTED_MODULE_40__["default"]; }); + +/* harmony import */ var _internal_requestAnimationFrame_js__WEBPACK_IMPORTED_MODULE_41__ = __webpack_require__(/*! ./internal/requestAnimationFrame.js */ "./internal/requestAnimationFrame.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "requestAnimationFrame", function() { return _internal_requestAnimationFrame_js__WEBPACK_IMPORTED_MODULE_41__["default"]; }); + +/* harmony import */ var _reset_js__WEBPACK_IMPORTED_MODULE_42__ = __webpack_require__(/*! ./reset.js */ "./reset.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "reset", function() { return _reset_js__WEBPACK_IMPORTED_MODULE_42__["default"]; }); + +/* harmony import */ var _resize_js__WEBPACK_IMPORTED_MODULE_43__ = __webpack_require__(/*! ./resize.js */ "./resize.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "resize", function() { return _resize_js__WEBPACK_IMPORTED_MODULE_43__["default"]; }); + +/* harmony import */ var _internal_setDefaultViewport_js__WEBPACK_IMPORTED_MODULE_44__ = __webpack_require__(/*! ./internal/setDefaultViewport.js */ "./internal/setDefaultViewport.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "setDefaultViewport", function() { return _internal_setDefaultViewport_js__WEBPACK_IMPORTED_MODULE_44__["default"]; }); + +/* harmony import */ var _setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_45__ = __webpack_require__(/*! ./setToPixelCoordinateSystem.js */ "./setToPixelCoordinateSystem.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "setToPixelCoordinateSystem", function() { return _setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_45__["default"]; }); + +/* harmony import */ var _setViewport_js__WEBPACK_IMPORTED_MODULE_46__ = __webpack_require__(/*! ./setViewport.js */ "./setViewport.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "setViewport", function() { return _setViewport_js__WEBPACK_IMPORTED_MODULE_46__["default"]; }); + +/* harmony import */ var _internal_storedColorPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_47__ = __webpack_require__(/*! ./internal/storedColorPixelDataToCanvasImageData.js */ "./internal/storedColorPixelDataToCanvasImageData.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "storedColorPixelDataToCanvasImageData", function() { return _internal_storedColorPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_47__["default"]; }); + +/* harmony import */ var _internal_storedPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_48__ = __webpack_require__(/*! ./internal/storedPixelDataToCanvasImageData.js */ "./internal/storedPixelDataToCanvasImageData.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "storedPixelDataToCanvasImageData", function() { return _internal_storedPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_48__["default"]; }); + +/* harmony import */ var _internal_storedPixelDataToCanvasImageDataColorLUT_js__WEBPACK_IMPORTED_MODULE_49__ = __webpack_require__(/*! ./internal/storedPixelDataToCanvasImageDataColorLUT.js */ "./internal/storedPixelDataToCanvasImageDataColorLUT.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "storedPixelDataToCanvasImageDataColorLUT", function() { return _internal_storedPixelDataToCanvasImageDataColorLUT_js__WEBPACK_IMPORTED_MODULE_49__["default"]; }); + +/* harmony import */ var _internal_storedPixelDataToCanvasImageDataPseudocolorLUT_js__WEBPACK_IMPORTED_MODULE_50__ = __webpack_require__(/*! ./internal/storedPixelDataToCanvasImageDataPseudocolorLUT.js */ "./internal/storedPixelDataToCanvasImageDataPseudocolorLUT.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "storedPixelDataToCanvasImageDataPseudocolorLUT", function() { return _internal_storedPixelDataToCanvasImageDataPseudocolorLUT_js__WEBPACK_IMPORTED_MODULE_50__["default"]; }); + +/* harmony import */ var _triggerEvent_js__WEBPACK_IMPORTED_MODULE_51__ = __webpack_require__(/*! ./triggerEvent.js */ "./triggerEvent.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "triggerEvent", function() { return _triggerEvent_js__WEBPACK_IMPORTED_MODULE_51__["default"]; }); + +/* harmony import */ var _updateImage_js__WEBPACK_IMPORTED_MODULE_52__ = __webpack_require__(/*! ./updateImage.js */ "./updateImage.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "updateImage", function() { return _updateImage_js__WEBPACK_IMPORTED_MODULE_52__["default"]; }); + +/* harmony import */ var _webgl_index_js__WEBPACK_IMPORTED_MODULE_53__ = __webpack_require__(/*! ./webgl/index.js */ "./webgl/index.js"); +/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "webGL", function() { return _webgl_index_js__WEBPACK_IMPORTED_MODULE_53__["default"]; }); + +// Internal (some of these are from old internal/legacy expose) + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + // Rendering + +/** + * @module PixelCoordinateSystem + */ + +/** + * @module ViewportSettings + */ + +var cornerstone = { + drawImage: _internal_drawImage_js__WEBPACK_IMPORTED_MODULE_14__["default"], + generateLut: _internal_generateLut_js__WEBPACK_IMPORTED_MODULE_18__["default"], + getDefaultViewport: _internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_19__["default"], + requestAnimationFrame: _internal_requestAnimationFrame_js__WEBPACK_IMPORTED_MODULE_41__["default"], + storedPixelDataToCanvasImageData: _internal_storedPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_48__["default"], + storedColorPixelDataToCanvasImageData: _internal_storedColorPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_47__["default"], + storedPixelDataToCanvasImageDataColorLUT: _internal_storedPixelDataToCanvasImageDataColorLUT_js__WEBPACK_IMPORTED_MODULE_49__["default"], + storedPixelDataToCanvasImageDataPseudocolorLUT: _internal_storedPixelDataToCanvasImageDataPseudocolorLUT_js__WEBPACK_IMPORTED_MODULE_50__["default"], + internal: _internal_index_js__WEBPACK_IMPORTED_MODULE_27__["default"], + renderLabelMapImage: _rendering_renderLabelMapImage_js__WEBPACK_IMPORTED_MODULE_36__["renderLabelMapImage"], + renderPseudoColorImage: _rendering_renderPseudoColorImage_js__WEBPACK_IMPORTED_MODULE_37__["renderPseudoColorImage"], + renderColorImage: _rendering_renderColorImage_js__WEBPACK_IMPORTED_MODULE_34__["renderColorImage"], + renderGrayscaleImage: _rendering_renderGrayscaleImage_js__WEBPACK_IMPORTED_MODULE_35__["renderGrayscaleImage"], + renderWebImage: _rendering_renderWebImage_js__WEBPACK_IMPORTED_MODULE_39__["renderWebImage"], + renderToCanvas: _rendering_renderToCanvas_js__WEBPACK_IMPORTED_MODULE_38__["default"], + canvasToPixel: _canvasToPixel_js__WEBPACK_IMPORTED_MODULE_9__["default"], + disable: _disable_js__WEBPACK_IMPORTED_MODULE_11__["default"], + displayImage: _displayImage_js__WEBPACK_IMPORTED_MODULE_12__["default"], + draw: _draw_js__WEBPACK_IMPORTED_MODULE_13__["default"], + drawInvalidated: _drawInvalidated_js__WEBPACK_IMPORTED_MODULE_15__["default"], + enable: _enable_js__WEBPACK_IMPORTED_MODULE_16__["default"], + getElementData: _enabledElementData_js__WEBPACK_IMPORTED_MODULE_4__["getElementData"], + removeElementData: _enabledElementData_js__WEBPACK_IMPORTED_MODULE_4__["removeElementData"], + getEnabledElement: _enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"], + addEnabledElement: _enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["addEnabledElement"], + getEnabledElementsByImageId: _enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElementsByImageId"], + getEnabledElements: _enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElements"], + addLayer: _layers_js__WEBPACK_IMPORTED_MODULE_2__["addLayer"], + removeLayer: _layers_js__WEBPACK_IMPORTED_MODULE_2__["removeLayer"], + getLayer: _layers_js__WEBPACK_IMPORTED_MODULE_2__["getLayer"], + getLayers: _layers_js__WEBPACK_IMPORTED_MODULE_2__["getLayers"], + getVisibleLayers: _layers_js__WEBPACK_IMPORTED_MODULE_2__["getVisibleLayers"], + setActiveLayer: _layers_js__WEBPACK_IMPORTED_MODULE_2__["setActiveLayer"], + getActiveLayer: _layers_js__WEBPACK_IMPORTED_MODULE_2__["getActiveLayer"], + purgeLayers: _layers_js__WEBPACK_IMPORTED_MODULE_2__["purgeLayers"], + setLayerImage: _layers_js__WEBPACK_IMPORTED_MODULE_2__["setLayerImage"], + fitToWindow: _fitToWindow_js__WEBPACK_IMPORTED_MODULE_17__["default"], + getDefaultViewportForImage: _getDefaultViewportForImage_js__WEBPACK_IMPORTED_MODULE_20__["default"], + getDisplayedArea: _internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_21__["default"], + setDefaultViewport: _internal_setDefaultViewport_js__WEBPACK_IMPORTED_MODULE_44__["default"], + getImage: _getImage_js__WEBPACK_IMPORTED_MODULE_22__["default"], + getPixels: _getPixels_js__WEBPACK_IMPORTED_MODULE_23__["default"], + getStoredPixels: _getStoredPixels_js__WEBPACK_IMPORTED_MODULE_24__["default"], + getViewport: _getViewport_js__WEBPACK_IMPORTED_MODULE_25__["default"], + loadImage: _imageLoader_js__WEBPACK_IMPORTED_MODULE_5__["loadImage"], + loadAndCacheImage: _imageLoader_js__WEBPACK_IMPORTED_MODULE_5__["loadAndCacheImage"], + registerImageLoader: _imageLoader_js__WEBPACK_IMPORTED_MODULE_5__["registerImageLoader"], + registerUnknownImageLoader: _imageLoader_js__WEBPACK_IMPORTED_MODULE_5__["registerUnknownImageLoader"], + invalidate: _invalidate_js__WEBPACK_IMPORTED_MODULE_28__["default"], + invalidateImageId: _invalidateImageId_js__WEBPACK_IMPORTED_MODULE_29__["default"], + pageToPixel: _pageToPixel_js__WEBPACK_IMPORTED_MODULE_31__["default"], + pixelToCanvas: _pixelToCanvas_js__WEBPACK_IMPORTED_MODULE_33__["default"], + reset: _reset_js__WEBPACK_IMPORTED_MODULE_42__["default"], + resize: _resize_js__WEBPACK_IMPORTED_MODULE_43__["default"], + setToPixelCoordinateSystem: _setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_45__["default"], + setViewport: _setViewport_js__WEBPACK_IMPORTED_MODULE_46__["default"], + updateImage: _updateImage_js__WEBPACK_IMPORTED_MODULE_52__["default"], + pixelDataToFalseColorData: _pixelDataToFalseColorData_js__WEBPACK_IMPORTED_MODULE_32__["default"], + rendering: _rendering_index_js__WEBPACK_IMPORTED_MODULE_40__["default"], + imageCache: _imageCache_js__WEBPACK_IMPORTED_MODULE_26__["default"], + metaData: _metaData_js__WEBPACK_IMPORTED_MODULE_30__["default"], + webGL: _webgl_index_js__WEBPACK_IMPORTED_MODULE_53__["default"], + colors: _colors_index_js__WEBPACK_IMPORTED_MODULE_10__["default"], + convertImageToFalseColorImage: _falseColorMapping_js__WEBPACK_IMPORTED_MODULE_3__["convertImageToFalseColorImage"], + convertToFalseColorImage: _falseColorMapping_js__WEBPACK_IMPORTED_MODULE_3__["convertToFalseColorImage"], + restoreImage: _falseColorMapping_js__WEBPACK_IMPORTED_MODULE_3__["restoreImage"], + EVENTS: _events_js__WEBPACK_IMPORTED_MODULE_0__["default"], + events: _events_js__WEBPACK_IMPORTED_MODULE_0__["events"], + triggerEvent: _triggerEvent_js__WEBPACK_IMPORTED_MODULE_51__["default"], + imageLoadPoolManager: _requestPool_imageLoadPoolManager_ts__WEBPACK_IMPORTED_MODULE_6__["default"], + imageRetrievalPoolManager: _requestPool_imageRetrievalPoolManager_ts__WEBPACK_IMPORTED_MODULE_7__["default"], + RequestPoolManager: _requestPool_RequestPoolManager_ts__WEBPACK_IMPORTED_MODULE_8__["RequestPoolManager"] +}; + +/* harmony default export */ __webpack_exports__["default"] = (cornerstone); + +/***/ }), + +/***/ "./internal/calculateTransform.js": +/*!****************************************!*\ + !*** ./internal/calculateTransform.js ***! + \****************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _transform_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./transform.js */ "./internal/transform.js"); +/* harmony import */ var _getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./getDisplayedArea.js */ "./internal/getDisplayedArea.js"); + + +/** + * Calculate the transform for a Cornerstone enabled element + * + * @param {EnabledElement} enabledElement The Cornerstone Enabled Element + * @param {Number} [scale] The viewport scale + * @return {Transform} The current transform + * @memberof Internal + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (enabledElement, scale) { + var transform = new _transform_js__WEBPACK_IMPORTED_MODULE_0__["Transform"](); // Move to center of canvas + + transform.translate(enabledElement.canvas.width / 2, enabledElement.canvas.height / 2); // Apply the rotation before scaling for non square pixels + + var angle = enabledElement.viewport.rotation; + + if (angle !== 0) { + transform.rotate(angle * Math.PI / 180); + } // Apply the scale + + + var widthScale = enabledElement.viewport.scale; + var heightScale = enabledElement.viewport.scale; + var imageDisplayedArea = Object(_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_1__["default"])(enabledElement.image, enabledElement.viewport); + var offsetX = imageDisplayedArea.tlhc.x - 1; + var offsetY = imageDisplayedArea.tlhc.y - 1; + var width = imageDisplayedArea.brhc.x - offsetX; + var height = imageDisplayedArea.brhc.y - offsetY; + + if (imageDisplayedArea.presentationSizeMode === 'NONE') { + if (enabledElement.image.rowPixelSpacing < enabledElement.image.columnPixelSpacing) { + widthScale *= enabledElement.image.columnPixelSpacing / enabledElement.image.rowPixelSpacing; + } else if (enabledElement.image.columnPixelSpacing < enabledElement.image.rowPixelSpacing) { + heightScale *= enabledElement.image.rowPixelSpacing / enabledElement.image.columnPixelSpacing; + } + } else { + // These should be good for "TRUE SIZE" and "MAGNIFY" + widthScale = imageDisplayedArea.columnPixelSpacing; + heightScale = imageDisplayedArea.rowPixelSpacing; + + if (imageDisplayedArea.presentationSizeMode === 'SCALE TO FIT') { + // Fit TRUE IMAGE image (width/height) to window + var verticalScale = enabledElement.canvas.height / (height * heightScale); + var horizontalScale = enabledElement.canvas.width / (width * widthScale); // Apply new scale + + widthScale = heightScale = Math.min(horizontalScale, verticalScale); + + if (imageDisplayedArea.rowPixelSpacing < imageDisplayedArea.columnPixelSpacing) { + widthScale *= imageDisplayedArea.columnPixelSpacing / imageDisplayedArea.rowPixelSpacing; + } else if (imageDisplayedArea.columnPixelSpacing < imageDisplayedArea.rowPixelSpacing) { + heightScale *= imageDisplayedArea.rowPixelSpacing / imageDisplayedArea.columnPixelSpacing; + } + } + } + + transform.scale(widthScale, heightScale); // Unrotate to so we can translate unrotated + + if (angle !== 0) { + transform.rotate(-angle * Math.PI / 180); + } // Apply the pan offset + + + transform.translate(enabledElement.viewport.translation.x, enabledElement.viewport.translation.y); // Rotate again so we can apply general scale + + if (angle !== 0) { + transform.rotate(angle * Math.PI / 180); + } + + if (scale !== undefined) { + // Apply the font scale + transform.scale(scale, scale); + } // Apply Flip if required + + + if (enabledElement.viewport.hflip) { + transform.scale(-1, 1); + } + + if (enabledElement.viewport.vflip) { + transform.scale(1, -1); + } // Move back from center of image + + + transform.translate(-width / 2, -height / 2); // Move to displayedArea + + transform.translate(-offsetX, -offsetY); + return transform; +}); + +/***/ }), + +/***/ "./internal/computeAutoVoi.js": +/*!************************************!*\ + !*** ./internal/computeAutoVoi.js ***! + \************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return computeAutoVoi; }); +/** + * Computes the VOI to display all the pixels if no VOI LUT data (Window Width/Window Center or voiLUT) exists on the viewport object. + * + * @param {Viewport} viewport - Object containing the viewport properties + * @param {Object} image An Image loaded by a Cornerstone Image Loader + * @returns {void} + * @memberof Internal + */ +function computeAutoVoi(viewport, image) { + if (hasVoi(viewport)) { + return; + } + + var maxVoi = image.maxPixelValue * image.slope + image.intercept; + var minVoi = image.minPixelValue * image.slope + image.intercept; + var ww = maxVoi - minVoi; + var wc = (maxVoi + minVoi) / 2; + + if (viewport.voi === undefined) { + viewport.voi = { + windowWidth: ww, + windowCenter: wc + }; + } else { + viewport.voi.windowWidth = ww; + viewport.voi.windowCenter = wc; + } +} +/** + * Check if viewport has voi LUT data + * @param {any} viewport The viewport to check for voi LUT data + * @returns {Boolean} true viewport has LUT data (Window Width/Window Center or voiLUT). Otherwise, false. + * @memberof Internal + */ + +function hasVoi(viewport) { + var hasLut = viewport.voiLUT && viewport.voiLUT.lut && viewport.voiLUT.lut.length > 0; + return hasLut || viewport.voi.windowWidth !== undefined && viewport.voi.windowCenter !== undefined; +} + +/***/ }), + +/***/ "./internal/createViewport.js": +/*!************************************!*\ + !*** ./internal/createViewport.js ***! + \************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _setDefaultViewport_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./setDefaultViewport.js */ "./internal/setDefaultViewport.js"); + +/** + * Creates a new viewport object containing default values + * + * @returns {Viewport} viewport object + * @memberof Internal + */ + +/* harmony default export */ __webpack_exports__["default"] = (function () { + var initialDefaultViewport = { + scale: 1, + translation: { + x: 0, + y: 0 + }, + voi: { + windowWidth: undefined, + windowCenter: undefined + }, + invert: false, + pixelReplication: false, + rotation: 0, + hflip: false, + vflip: false, + modalityLUT: undefined, + voiLUT: undefined, + colormap: undefined, + labelmap: false, + displayedArea: undefined + }; + return Object.assign({}, initialDefaultViewport, _setDefaultViewport_js__WEBPACK_IMPORTED_MODULE_0__["state"].viewport); +}); + +/***/ }), + +/***/ "./internal/drawCompositeImage.js": +/*!****************************************!*\ + !*** ./internal/drawCompositeImage.js ***! + \****************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _layers_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../layers.js */ "./layers.js"); +/* harmony import */ var _rendering_renderGrayscaleImage_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../rendering/renderGrayscaleImage.js */ "./rendering/renderGrayscaleImage.js"); +/* harmony import */ var _rendering_renderColorImage_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../rendering/renderColorImage.js */ "./rendering/renderColorImage.js"); +/* harmony import */ var _rendering_renderPseudoColorImage_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../rendering/renderPseudoColorImage.js */ "./rendering/renderPseudoColorImage.js"); +/* harmony import */ var _rendering_renderLabelMapImage_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../rendering/renderLabelMapImage.js */ "./rendering/renderLabelMapImage.js"); +/* harmony import */ var _setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../setToPixelCoordinateSystem.js */ "./setToPixelCoordinateSystem.js"); +/* harmony import */ var _getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./getDisplayedArea.js */ "./internal/getDisplayedArea.js"); + + + + + + + + +function getViewportRatio(baseLayer, targetLayer) { + if (!baseLayer.syncProps) { + updateLayerSyncProps(baseLayer); + } + + if (!targetLayer.syncProps) { + updateLayerSyncProps(targetLayer); + } + + return targetLayer.syncProps.originalScale / baseLayer.syncProps.originalScale; +} + +function updateLayerSyncProps(layer) { + var syncProps = layer.syncProps || {}; // This is used to keep each of the layers' viewports in sync with the active layer + + syncProps.originalScale = layer.viewport.scale; + layer.syncProps = syncProps; +} // Sync all viewports based on active layer's viewport + + +function syncViewports(layers, activeLayer) { + // If we intend to keep the viewport's scale, translation and rotation in sync, + // loop through the layers + layers.forEach(function (layer) { + // Don't do anything to the active layer + // Don't do anything if this layer has no viewport + if (layer === activeLayer || !layer.viewport || !activeLayer.viewport) { + return; + } + + if (!layer.syncProps) { + updateLayerSyncProps(layer); + } + + var viewportRatio = getViewportRatio(activeLayer, layer); // Update the layer's translation and scale to keep them in sync with the first image + // based on the ratios between the images + + layer.viewport.scale = activeLayer.viewport.scale * viewportRatio; + layer.viewport.rotation = activeLayer.viewport.rotation; + layer.viewport.translation = { + x: activeLayer.viewport.translation.x / viewportRatio, + y: activeLayer.viewport.translation.y / viewportRatio + }; + layer.viewport.hflip = activeLayer.viewport.hflip; + layer.viewport.vflip = activeLayer.viewport.vflip; + }); +} +/** + * Internal function to render all layers for a Cornerstone enabled element + * + * @param {CanvasRenderingContext2D} context Canvas context to draw upon + * @param {EnabledElementLayer[]} layers The array of all layers for this enabled element + * @param {Boolean} invalidated A boolean whether or not this image has been invalidated and must be redrawn + * @returns {void} + * @memberof Internal + */ + + +function renderLayers(context, layers, invalidated) { + // Loop through each layer and draw it to the canvas + layers.forEach(function (layer, index) { + if (!layer.image) { + return; + } + + context.save(); // Set the layer's canvas to the pixel coordinate system + + layer.canvas = context.canvas; + Object(_setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_5__["default"])(layer, context); // Render into the layer's canvas + + var colormap = layer.viewport.colormap || layer.options.colormap; + var labelmap = layer.viewport.labelmap; + var isInvalid = layer.invalid || invalidated; + + if (colormap && colormap !== '' && labelmap === true) { + Object(_rendering_renderLabelMapImage_js__WEBPACK_IMPORTED_MODULE_4__["addLabelMapLayer"])(layer, isInvalid); + } else if (colormap && colormap !== '') { + Object(_rendering_renderPseudoColorImage_js__WEBPACK_IMPORTED_MODULE_3__["addPseudoColorLayer"])(layer, isInvalid); + } else if (layer.image.color === true) { + Object(_rendering_renderColorImage_js__WEBPACK_IMPORTED_MODULE_2__["addColorLayer"])(layer, isInvalid); + } else { + // If this is the base layer, use the alpha channel for rendering of the grayscale image + var useAlphaChannel = index === 0; + Object(_rendering_renderGrayscaleImage_js__WEBPACK_IMPORTED_MODULE_1__["addGrayscaleLayer"])(layer, isInvalid, useAlphaChannel); + } // Apply any global opacity settings that have been defined for this layer + + + if (layer.options && layer.options.opacity) { + context.globalAlpha = layer.options.opacity; + } else { + context.globalAlpha = 1; + } + + if (layer.options && layer.options.fillStyle) { + context.fillStyle = layer.options.fillStyle; + } // Set the pixelReplication property before drawing from the layer into the + // composite canvas + + + context.imageSmoothingEnabled = !layer.viewport.pixelReplication; + context.mozImageSmoothingEnabled = context.imageSmoothingEnabled; // Draw from the current layer's canvas onto the enabled element's canvas + + var layerDisplayedArea = Object(_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_6__["default"])(layer.image, layer.viewport); + var sx = layerDisplayedArea.tlhc.x - 1; + var sy = layerDisplayedArea.tlhc.y - 1; + var width = layerDisplayedArea.brhc.x - sx; + var height = layerDisplayedArea.brhc.y - sy; + context.drawImage(layer.canvas, sx, sy, width, height, sx, sy, width, height); + context.restore(); + layer.invalid = false; + }); +} +/** + * Internal API function to draw a composite image to a given enabled element + * + * @param {EnabledElement} enabledElement An enabled element to draw into + * @param {Boolean} invalidated - true if pixel data has been invalidated and cached rendering should not be used + * @returns {void} + */ + + +/* harmony default export */ __webpack_exports__["default"] = (function (enabledElement, invalidated) { + var element = enabledElement.element; + var allLayers = Object(_layers_js__WEBPACK_IMPORTED_MODULE_0__["getLayers"])(element); + var activeLayer = Object(_layers_js__WEBPACK_IMPORTED_MODULE_0__["getActiveLayer"])(element); + var visibleLayers = Object(_layers_js__WEBPACK_IMPORTED_MODULE_0__["getVisibleLayers"])(element); + var resynced = !enabledElement.lastSyncViewportsState && enabledElement.syncViewports; // This state will help us to determine if the user has re-synced the + // layers allowing us to make a new copy of the viewports + + enabledElement.lastSyncViewportsState = enabledElement.syncViewports; // Stores a copy of all viewports if the user has just synced them then we can use the + // copies to calculate anything later (ratio, translation offset, rotation offset, etc) + + if (resynced) { + allLayers.forEach(function (layer) { + if (layer.viewport) { + updateLayerSyncProps(layer); + } + }); + } // Sync all viewports in case it's activated + + + if (enabledElement.syncViewports === true) { + syncViewports(visibleLayers, activeLayer); + } // Get the enabled element's canvas so we can draw to it + + + var context = enabledElement.canvas.getContext('2d', { + desynchronized: true + }); + context.setTransform(1, 0, 0, 1, 0, 0); // Clear the canvas + + context.fillStyle = 'black'; + context.fillRect(0, 0, enabledElement.canvas.width, enabledElement.canvas.height); // Render all visible layers + + renderLayers(context, visibleLayers, invalidated); +}); + +/***/ }), + +/***/ "./internal/drawImage.js": +/*!*******************************!*\ + !*** ./internal/drawImage.js ***! + \*******************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/** + * Internal API function to draw an image to a given enabled element + * + * @param {EnabledElement} enabledElement The Cornerstone Enabled Element to redraw + * @param {Boolean} [invalidated = false] - true if pixel data has been invalidated and cached rendering should not be used + * @returns {void} + * @memberof Internal + */ +/* harmony default export */ __webpack_exports__["default"] = (function (enabledElement) { + var invalidated = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false; + enabledElement.needsRedraw = true; + + if (invalidated) { + enabledElement.invalid = true; + } +}); + +/***/ }), + +/***/ "./internal/drawImageSync.js": +/*!***********************************!*\ + !*** ./internal/drawImageSync.js ***! + \***********************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _now_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./now.js */ "./internal/now.js"); +/* harmony import */ var _drawCompositeImage_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./drawCompositeImage.js */ "./internal/drawCompositeImage.js"); +/* harmony import */ var _rendering_renderColorImage_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../rendering/renderColorImage.js */ "./rendering/renderColorImage.js"); +/* harmony import */ var _rendering_renderGrayscaleImage_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../rendering/renderGrayscaleImage.js */ "./rendering/renderGrayscaleImage.js"); +/* harmony import */ var _rendering_renderPseudoColorImage_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../rendering/renderPseudoColorImage.js */ "./rendering/renderPseudoColorImage.js"); +/* harmony import */ var _rendering_renderLabelMapImage_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../rendering/renderLabelMapImage.js */ "./rendering/renderLabelMapImage.js"); +/* harmony import */ var _triggerEvent_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../triggerEvent.js */ "./triggerEvent.js"); +/* harmony import */ var _events_js__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../events.js */ "./events.js"); + + + + + + + + +/** + * Draw an image to a given enabled element synchronously + * + * @param {EnabledElement} enabledElement An enabled element to draw into + * @param {Boolean} invalidated - true if pixel data has been invalidated and cached rendering should not be used + * @returns {void} + * @memberof Internal + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (enabledElement, invalidated) { + var image = enabledElement.image; + var element = enabledElement.element; + var layers = enabledElement.layers || []; // Check if enabledElement can be redrawn + + if (!enabledElement.canvas || !enabledElement.image) { + return; + } // Start measuring the time needed to draw the image/layers + + + var start = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + image.stats = { + lastGetPixelDataTime: -1.0, + lastStoredPixelDataToCanvasImageDataTime: -1.0, + lastPutImageDataTime: -1.0, + lastRenderTime: -1.0, + lastLutGenerateTime: -1.0 + }; + + if (layers && layers.length) { + Object(_drawCompositeImage_js__WEBPACK_IMPORTED_MODULE_1__["default"])(enabledElement, invalidated); + } else if (image) { + var render = image.render; + + if (!render) { + if (enabledElement.viewport.colormap && enabledElement.viewport.colormap !== '' && enabledElement.image.labelmap === true) { + render = _rendering_renderLabelMapImage_js__WEBPACK_IMPORTED_MODULE_5__["renderLabelMapImage"]; + } else if (enabledElement.viewport.colormap && enabledElement.viewport.colormap !== '') { + render = _rendering_renderPseudoColorImage_js__WEBPACK_IMPORTED_MODULE_4__["renderPseudoColorImage"]; + } else if (image.color) { + render = _rendering_renderColorImage_js__WEBPACK_IMPORTED_MODULE_2__["renderColorImage"]; + } else { + render = _rendering_renderGrayscaleImage_js__WEBPACK_IMPORTED_MODULE_3__["renderGrayscaleImage"]; + } + } + + render(enabledElement, invalidated); + } // Calculate how long it took to draw the image/layers + + + var renderTimeInMs = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])() - start; + var eventData = { + viewport: enabledElement.viewport, + element: element, + image: image, + enabledElement: enabledElement, + canvasContext: enabledElement.canvas.getContext('2d', { + desynchronized: true + }), + renderTimeInMs: renderTimeInMs + }; + image.stats.lastRenderTime = renderTimeInMs; + enabledElement.invalid = false; + enabledElement.needsRedraw = false; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_6__["default"])(element, _events_js__WEBPACK_IMPORTED_MODULE_7__["default"].IMAGE_RENDERED, eventData); +}); + +/***/ }), + +/***/ "./internal/generateColorLut.js": +/*!**************************************!*\ + !*** ./internal/generateColorLut.js ***! + \**************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _getVOILut_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./getVOILut.js */ "./internal/getVOILut.js"); + +/** + * Creates a LUT used while rendering to convert stored pixel values to + * display pixels + * + * @param {Image} image A Cornerstone Image Object + * @param {Number} windowWidth The Window Width + * @param {Number} windowCenter The Window Center + * @param {Boolean} invert A boolean describing whether or not the image has been inverted + * @param {Array} [voiLUT] A Volume of Interest Lookup Table + * + * @returns {Uint8ClampedArray} A lookup table to apply to the image + * @memberof Internal + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (image, windowWidth, windowCenter, invert, voiLUT) { + var maxPixelValue = image.maxPixelValue; + var minPixelValue = image.minPixelValue; + var offset = Math.min(minPixelValue, 0); + + if (image.cachedLut === undefined) { + var length = maxPixelValue - offset + 1; + image.cachedLut = {}; + image.cachedLut.lutArray = new Uint8ClampedArray(length); + } + + var lut = image.cachedLut.lutArray; + var vlutfn = Object(_getVOILut_js__WEBPACK_IMPORTED_MODULE_0__["default"])(windowWidth, windowCenter, voiLUT); + + if (invert === true) { + for (var storedValue = minPixelValue; storedValue <= maxPixelValue; storedValue++) { + lut[storedValue + -offset] = 255 - vlutfn(storedValue); + } + } else { + for (var _storedValue = minPixelValue; _storedValue <= maxPixelValue; _storedValue++) { + lut[_storedValue + -offset] = vlutfn(_storedValue); + } + } + + return lut; +}); + +/***/ }), + +/***/ "./internal/generateLut.js": +/*!*********************************!*\ + !*** ./internal/generateLut.js ***! + \*********************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _getModalityLUT_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./getModalityLUT.js */ "./internal/getModalityLUT.js"); +/* harmony import */ var _getVOILut_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./getVOILut.js */ "./internal/getVOILut.js"); + + +/** + * Creates a LUT used while rendering to convert stored pixel values to + * display pixels + * + * @param {Image} image A Cornerstone Image Object + * @param {Number} windowWidth The Window Width + * @param {Number} windowCenter The Window Center + * @param {Boolean} invert A boolean describing whether or not the image has been inverted + * @param {Array} [modalityLUT] A modality Lookup Table + * @param {Array} [voiLUT] A Volume of Interest Lookup Table + * + * @returns {Uint8ClampedArray} A lookup table to apply to the image + * @memberof Internal + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (image, windowWidth, windowCenter, invert, modalityLUT, voiLUT) { + var maxPixelValue = image.maxPixelValue; + var minPixelValue = image.minPixelValue; + var offset = Math.min(minPixelValue, 0); + + if (image.cachedLut === undefined) { + var length = maxPixelValue - offset + 1; + image.cachedLut = {}; + image.cachedLut.lutArray = new Uint8ClampedArray(length); + } + + var lut = image.cachedLut.lutArray; + var slopeOrInterceptAreFloat = Boolean(image.slope % 1) || Boolean(image.intercept % 1); + var mlutfn = Object(_getModalityLUT_js__WEBPACK_IMPORTED_MODULE_0__["default"])(image.slope, image.intercept, modalityLUT); + var vlutfn = Object(_getVOILut_js__WEBPACK_IMPORTED_MODULE_1__["default"])(windowWidth, windowCenter, voiLUT, slopeOrInterceptAreFloat); + + if (invert === true) { + for (var storedValue = minPixelValue; storedValue <= maxPixelValue; storedValue++) { + lut[storedValue + -offset] = 255 - vlutfn(mlutfn(storedValue)); + } + } else { + for (var _storedValue = minPixelValue; _storedValue <= maxPixelValue; _storedValue++) { + lut[_storedValue + -offset] = vlutfn(mlutfn(_storedValue)); + } + } + + return lut; +}); + +/***/ }), + +/***/ "./internal/getCanvas.js": +/*!*******************************!*\ + !*** ./internal/getCanvas.js ***! + \*******************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return getCanvas; }); +var CANVAS_CSS_CLASS = 'cornerstone-canvas'; +/** + * Create a canvas and append it to the element + * + * @param {HTMLElement} element An HTML Element + * @return {HTMLElement} canvas A Canvas DOM element + */ + +function createCanvas(element) { + var canvas = document.createElement('canvas'); + canvas.style.display = 'block'; + canvas.classList.add(CANVAS_CSS_CLASS); + element.appendChild(canvas); + return canvas; +} +/** + * Create a canvas or returns the one that already exists for a given element + * + * @param {HTMLElement} element An HTML Element + * @return {HTMLElement} canvas A Canvas DOM element + */ + + +function getCanvas(element) { + var selector = "canvas.".concat(CANVAS_CSS_CLASS); + return element.querySelector(selector) || createCanvas(element); +} + +/***/ }), + +/***/ "./internal/getDefaultViewport.js": +/*!****************************************!*\ + !*** ./internal/getDefaultViewport.js ***! + \****************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _createViewport_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./createViewport.js */ "./internal/createViewport.js"); +/* harmony import */ var _getImageFitScale_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./getImageFitScale.js */ "./internal/getImageFitScale.js"); + + +/** + * Creates a new viewport object containing default values for the image and canvas + * + * @param {HTMLElement} canvas A Canvas DOM element + * @param {Image} image A Cornerstone Image Object + * @returns {Viewport} viewport object + * @memberof Internal + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (canvas, image) { + if (canvas === undefined) { + throw new Error('getDefaultViewport: parameter canvas must not be undefined'); + } + + if (image === undefined) { + return Object(_createViewport_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + } // Fit image to window + + + var scale = Object(_getImageFitScale_js__WEBPACK_IMPORTED_MODULE_1__["default"])(canvas, image, 0).scaleFactor; + return { + scale: scale, + translation: { + x: 0, + y: 0 + }, + voi: { + windowWidth: image.windowWidth, + windowCenter: image.windowCenter + }, + invert: image.invert, + pixelReplication: false, + rotation: 0, + hflip: false, + vflip: false, + modalityLUT: image.modalityLUT, + voiLUT: image.voiLUT, + colormap: image.colormap, + labelmap: Boolean(image.labelmap), + displayedArea: undefined + }; +}); + +/***/ }), + +/***/ "./internal/getDisplayedArea.js": +/*!**************************************!*\ + !*** ./internal/getDisplayedArea.js ***! + \**************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/** + * Returns the displayedArea from the viewport if exists or + * creates a new displayedArea object containing default values for the image + * + * @param {Image} image A Cornerstone Image Object + * @param {Viewport} viewport An optional viewport Object + * @returns {DisplayedArea} displayedArea object + * @memberof Internal + */ +/* harmony default export */ __webpack_exports__["default"] = (function (image) { + var viewport = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null; + + if (viewport && viewport.displayedArea) { + return viewport.displayedArea; + } + + if (image === undefined) { + throw new Error('getDisplayedArea: parameter image must not be undefined'); + } + + return { + tlhc: { + x: 1, + y: 1 + }, + brhc: { + x: image.columns, + y: image.rows + }, + rowPixelSpacing: image.rowPixelSpacing === undefined ? 1 : image.rowPixelSpacing, + columnPixelSpacing: image.columnPixelSpacing === undefined ? 1 : image.columnPixelSpacing, + presentationSizeMode: 'NONE' + }; +}); + +/***/ }), + +/***/ "./internal/getFillStyle.js": +/*!**********************************!*\ + !*** ./internal/getFillStyle.js ***! + \**********************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/** + * Get current fillStyle for enabled element + * + * @param {Object} enabledElement Enabled element + * @returns {String} Current fillStyle of enabled element + */ +/* harmony default export */ __webpack_exports__["default"] = (function (enabledElement) { + var _ref = enabledElement.viewport || {}, + invert = _ref.invert; + + var _ref2 = enabledElement.options || {}, + fillStyle = _ref2.fillStyle; + + if (['black', 'white'].indexOf(fillStyle) !== -1) { + return invert ? 'white' : 'black'; + } + + return 'black'; +}); + +/***/ }), + +/***/ "./internal/getImageFitScale.js": +/*!**************************************!*\ + !*** ./internal/getImageFitScale.js ***! + \**************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _validator_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./validator.js */ "./internal/validator.js"); +/* harmony import */ var _getImageSize_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./getImageSize.js */ "./internal/getImageSize.js"); + + +/** + * Calculates the horizontal, vertical and minimum scale factor for an image + @param {{width, height}} windowSize The window size where the image is displayed. This can be any HTML element or structure with a width, height fields (e.g. canvas). + * @param {any} image The cornerstone image object + * @param {Number} rotation Optional. The rotation angle of the image. + * @return {{horizontalScale, verticalScale, scaleFactor}} The calculated horizontal, vertical and minimum scale factor + * @memberof Internal + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (windowSize, image) { + var rotation = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null; + Object(_validator_js__WEBPACK_IMPORTED_MODULE_0__["validateParameterUndefinedOrNull"])(windowSize, 'getImageScale: parameter windowSize must not be undefined'); + Object(_validator_js__WEBPACK_IMPORTED_MODULE_0__["validateParameterUndefinedOrNull"])(image, 'getImageScale: parameter image must not be undefined'); + var imageSize = Object(_getImageSize_js__WEBPACK_IMPORTED_MODULE_1__["default"])(image, rotation); + var rowPixelSpacing = image.rowPixelSpacing || 1; + var columnPixelSpacing = image.columnPixelSpacing || 1; + var verticalRatio = 1; + var horizontalRatio = 1; + + if (rowPixelSpacing < columnPixelSpacing) { + horizontalRatio = columnPixelSpacing / rowPixelSpacing; + } else { + // even if they are equal we want to calculate this ratio (the ration might be 0.5) + verticalRatio = rowPixelSpacing / columnPixelSpacing; + } + + var verticalScale = windowSize.height / imageSize.height / verticalRatio; + var horizontalScale = windowSize.width / imageSize.width / horizontalRatio; // Fit image to window + + return { + verticalScale: verticalScale, + horizontalScale: horizontalScale, + scaleFactor: Math.min(horizontalScale, verticalScale) + }; +}); + +/***/ }), + +/***/ "./internal/getImageSize.js": +/*!**********************************!*\ + !*** ./internal/getImageSize.js ***! + \**********************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _validator_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./validator.js */ "./internal/validator.js"); + +/** + * Check if the angle is rotated + * @param {Number} rotation the rotation angle + * @returns {Boolean} true if the angle is rotated; Otherwise, false. + * @memberof Internal + */ + +function isRotated(rotation) { + return !(rotation === null || rotation === undefined || rotation === 0 || rotation === 180); +} +/** + * Retrieves the current image dimensions given an enabled element + * + * @param {any} image The Cornerstone image. + * @param {Number} rotation Optional. The rotation angle of the image. + * @return {{width:Number, height:Number}} The Image dimensions + * @memberof Internal + */ + + +/* harmony default export */ __webpack_exports__["default"] = (function (image) { + var rotation = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null; + Object(_validator_js__WEBPACK_IMPORTED_MODULE_0__["validateParameterUndefinedOrNull"])(image, 'getImageSize: parameter image must not be undefined'); + Object(_validator_js__WEBPACK_IMPORTED_MODULE_0__["validateParameterUndefinedOrNull"])(image.width, 'getImageSize: parameter image must have width'); + Object(_validator_js__WEBPACK_IMPORTED_MODULE_0__["validateParameterUndefinedOrNull"])(image.height, 'getImageSize: parameter image must have height'); + + if (isRotated(rotation)) { + return { + height: image.width, + width: image.height + }; + } + + return { + width: image.width, + height: image.height + }; +}); + +/***/ }), + +/***/ "./internal/getModalityLUT.js": +/*!************************************!*\ + !*** ./internal/getModalityLUT.js ***! + \************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/** + * Generates a linear modality transformation function + * + * See DICOM PS3.3 C.11.1 Modality LUT Module + * + * http://dicom.nema.org/medical/Dicom/current/output/chtml/part03/sect_C.11.html + * + * @param {Number} slope m in the equation specified by Rescale Intercept (0028,1052). + * @param {Number} intercept The value b in relationship between stored values (SV) and the output units specified in Rescale Type (0028,1054). + + Output units = m*SV + b. + * @return {function(*): *} A linear modality LUT function. Given a stored pixel it returns the modality pixel value + * @memberof Internal + */ +function generateLinearModalityLUT(slope, intercept) { + return function (storedPixelValue) { + return storedPixelValue * slope + intercept; + }; +} + +function generateNonLinearModalityLUT(modalityLUT) { + var minValue = modalityLUT.lut[0]; + var maxValue = modalityLUT.lut[modalityLUT.lut.length - 1]; + var maxValueMapped = modalityLUT.firstValueMapped + modalityLUT.lut.length; + return function (storedPixelValue) { + if (storedPixelValue < modalityLUT.firstValueMapped) { + return minValue; + } else if (storedPixelValue >= maxValueMapped) { + return maxValue; + } + + return modalityLUT.lut[storedPixelValue]; + }; +} +/** + * Get the appropriate Modality LUT for the current situation. + * + * @param {Number} [slope] m in the equation specified by Rescale Intercept (0028,1052). + * @param {Number} [intercept] The value b in relationship between stored values (SV) and the output units specified in Rescale Type (0028,1054). + * @param {Function} [modalityLUT] A modality LUT function. Given a stored pixel it returns the modality pixel value. + * + * @return {function(*): *} A modality LUT function. Given a stored pixel it returns the modality pixel value. + * @memberof Internal + */ + + +/* harmony default export */ __webpack_exports__["default"] = (function (slope, intercept, modalityLUT) { + if (modalityLUT) { + return generateNonLinearModalityLUT(modalityLUT); + } + + return generateLinearModalityLUT(slope, intercept); +}); + +/***/ }), + +/***/ "./internal/getTransform.js": +/*!**********************************!*\ + !*** ./internal/getTransform.js ***! + \**********************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _calculateTransform_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./calculateTransform.js */ "./internal/calculateTransform.js"); + +/* harmony default export */ __webpack_exports__["default"] = (function (enabledElement) { + // For now we will calculate it every time it is requested. + // In the future, we may want to cache it in the enabled element to speed things up. + return Object(_calculateTransform_js__WEBPACK_IMPORTED_MODULE_0__["default"])(enabledElement); +}); + +/***/ }), + +/***/ "./internal/getVOILut.js": +/*!*******************************!*\ + !*** ./internal/getVOILut.js ***! + \*******************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); } + +function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } + +function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); } + +function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); } + +function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); } + +function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; } + +/* eslint no-bitwise: 0 */ + +/** + * Volume of Interest Lookup Table Function + * + * @typedef {Function} VOILUTFunction + * + * @param {Number} modalityLutValue + * @returns {Number} transformed value + * @memberof Objects + */ + +/** + * @module: VOILUT + */ + +/** + * + * @param {Number} windowWidth Window Width + * @param {Number} windowCenter Window Center + * @returns {VOILUTFunction} VOI LUT mapping function + * @memberof VOILUT + */ +function generateLinearVOILUT(windowWidth, windowCenter) { + return function (modalityLutValue) { + return ((modalityLutValue - windowCenter) / windowWidth + 0.5) * 255.0; + }; +} +/** + * Generate a non-linear volume of interest lookup table + * + * @param {LUT} voiLUT Volume of Interest Lookup Table Object + * @param {Boolean} roundModalityLUTValues Do a Math.round of modality lut to compute non linear voilut + + * + * @returns {VOILUTFunction} VOI LUT mapping function + * @memberof VOILUT + */ + + +function generateNonLinearVOILUT(voiLUT, roundModalityLUTValues) { + // We don't trust the voiLUT.numBitsPerEntry, mainly thanks to Agfa! + var bitsPerEntry = Math.max.apply(Math, _toConsumableArray(voiLUT.lut)).toString(2).length; + var shift = bitsPerEntry - 8; + var minValue = voiLUT.lut[0] >> shift; + var maxValue = voiLUT.lut[voiLUT.lut.length - 1] >> shift; + var maxValueMapped = voiLUT.firstValueMapped + voiLUT.lut.length - 1; + return function (modalityLutValue) { + if (modalityLutValue < voiLUT.firstValueMapped) { + return minValue; + } else if (modalityLutValue >= maxValueMapped) { + return maxValue; + } + + if (roundModalityLUTValues) { + return voiLUT.lut[Math.round(modalityLutValue) - voiLUT.firstValueMapped] >> shift; + } + + return voiLUT.lut[modalityLutValue - voiLUT.firstValueMapped] >> shift; + }; +} +/** + * Retrieve a VOI LUT mapping function given the current windowing settings + * and the VOI LUT for the image + * + * @param {Number} windowWidth Window Width + * @param {Number} windowCenter Window Center + * @param {LUT} [voiLUT] Volume of Interest Lookup Table Object + * @param {Boolean} roundModalityLUTValues Do a Math.round of modality lut to compute non linear voilut + * + * @return {VOILUTFunction} VOI LUT mapping function + * @memberof VOILUT + */ + + +/* harmony default export */ __webpack_exports__["default"] = (function (windowWidth, windowCenter, voiLUT, roundModalityLUTValues) { + if (voiLUT) { + return generateNonLinearVOILUT(voiLUT, roundModalityLUTValues); + } + + return generateLinearVOILUT(windowWidth, windowCenter); +}); + +/***/ }), + +/***/ "./internal/guid.js": +/*!**************************!*\ + !*** ./internal/guid.js ***! + \**************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +function s4() { + return Math.floor((1 + Math.random()) * 0x10000).toString(16).substring(1); +} +/** + * Generate a unique identifier + * + * @return {string} A unique identifier + * @memberof Internal + */ + + +/* harmony default export */ __webpack_exports__["default"] = (function () { + return "".concat(s4() + s4(), "-").concat(s4(), "-").concat(s4(), "-").concat(s4(), "-").concat(s4()).concat(s4()).concat(s4()); +}); + +/***/ }), + +/***/ "./internal/index.js": +/*!***************************!*\ + !*** ./internal/index.js ***! + \***************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _transform_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./transform.js */ "./internal/transform.js"); +/* harmony import */ var _calculateTransform_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./calculateTransform.js */ "./internal/calculateTransform.js"); +/* harmony import */ var _drawImage_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./drawImage.js */ "./internal/drawImage.js"); +/* harmony import */ var _generateLut_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./generateLut.js */ "./internal/generateLut.js"); +/* harmony import */ var _getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./getDefaultViewport.js */ "./internal/getDefaultViewport.js"); +/* harmony import */ var _getTransform_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./getTransform.js */ "./internal/getTransform.js"); +/* harmony import */ var _requestAnimationFrame_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./requestAnimationFrame.js */ "./internal/requestAnimationFrame.js"); +/* harmony import */ var _setDefaultViewport_js__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./setDefaultViewport.js */ "./internal/setDefaultViewport.js"); +/* harmony import */ var _storedColorPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./storedColorPixelDataToCanvasImageData.js */ "./internal/storedColorPixelDataToCanvasImageData.js"); +/* harmony import */ var _storedPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./storedPixelDataToCanvasImageData.js */ "./internal/storedPixelDataToCanvasImageData.js"); +/* harmony import */ var _storedPixelDataToCanvasImageDataColorLUT_js__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./storedPixelDataToCanvasImageDataColorLUT.js */ "./internal/storedPixelDataToCanvasImageDataColorLUT.js"); +/* harmony import */ var _storedPixelDataToCanvasImageDataPseudocolorLUT_js__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./storedPixelDataToCanvasImageDataPseudocolorLUT.js */ "./internal/storedPixelDataToCanvasImageDataPseudocolorLUT.js"); +/* harmony import */ var _storedPixelDataToCanvasImageDataRGBA_js__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./storedPixelDataToCanvasImageDataRGBA.js */ "./internal/storedPixelDataToCanvasImageDataRGBA.js"); + + + + + + + + + + + + + +/** + * @module Internal + */ + +/* harmony default export */ __webpack_exports__["default"] = ({ + drawImage: _drawImage_js__WEBPACK_IMPORTED_MODULE_2__["default"], + generateLut: _generateLut_js__WEBPACK_IMPORTED_MODULE_3__["default"], + getDefaultViewport: _getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_4__["default"], + requestAnimationFrame: _requestAnimationFrame_js__WEBPACK_IMPORTED_MODULE_6__["default"], + setDefaultViewport: _setDefaultViewport_js__WEBPACK_IMPORTED_MODULE_7__["default"], + storedPixelDataToCanvasImageData: _storedPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_9__["default"], + storedPixelDataToCanvasImageDataRGBA: _storedPixelDataToCanvasImageDataRGBA_js__WEBPACK_IMPORTED_MODULE_12__["default"], + storedPixelDataToCanvasImageDataColorLUT: _storedPixelDataToCanvasImageDataColorLUT_js__WEBPACK_IMPORTED_MODULE_10__["default"], + storedPixelDataToCanvasImageDataPseudocolorLUT: _storedPixelDataToCanvasImageDataPseudocolorLUT_js__WEBPACK_IMPORTED_MODULE_11__["default"], + storedColorPixelDataToCanvasImageData: _storedColorPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_8__["default"], + getTransform: _getTransform_js__WEBPACK_IMPORTED_MODULE_5__["default"], + calculateTransform: _calculateTransform_js__WEBPACK_IMPORTED_MODULE_1__["default"], + Transform: _transform_js__WEBPACK_IMPORTED_MODULE_0__["Transform"] +}); + +/***/ }), + +/***/ "./internal/now.js": +/*!*************************!*\ + !*** ./internal/now.js ***! + \*************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/** + * @module Polyfills + */ + +/** + * Use the performance.now() method if possible, and if not, use Date.now() + * + * @return {number} Time elapsed since the time origin + * @memberof Polyfills + */ +/* harmony default export */ __webpack_exports__["default"] = (function () { + if (window.performance) { + return performance.now(); + } + + return Date.now(); +}); + +/***/ }), + +/***/ "./internal/requestAnimationFrame.js": +/*!*******************************************!*\ + !*** ./internal/requestAnimationFrame.js ***! + \*******************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +function requestFrame(callback) { + window.setTimeout(callback, 1000 / 60); +} +/** + * Polyfills requestAnimationFrame for older browsers. + * + * @param {Function} callback A parameter specifying a function to call when it's time to update your animation for the next repaint. The callback has one single argument, a DOMHighResTimeStamp, which indicates the current time (the time returned from performance.now() ) for when requestAnimationFrame starts to fire callbacks. + * + * @return {Number} A long integer value, the request id, that uniquely identifies the entry in the callback list. This is a non-zero value, but you may not make any other assumptions about its value. You can pass this value to window.cancelAnimationFrame() to cancel the refresh callback request. + * @memberof Polyfills + */ + + +/* harmony default export */ __webpack_exports__["default"] = (function (callback) { + return window.requestAnimationFrame(callback) || window.webkitRequestAnimationFrame(callback) || window.mozRequestAnimationFrame(callback) || window.oRequestAnimationFrame(callback) || window.msRequestAnimationFrame(callback) || requestFrame(callback); +}); + +/***/ }), + +/***/ "./internal/setDefaultViewport.js": +/*!****************************************!*\ + !*** ./internal/setDefaultViewport.js ***! + \****************************************/ +/*! exports provided: default, state */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "state", function() { return state; }); +var state = { + viewport: {} +}; +/** + * Sets new default values for `getDefaultViewport` + * + * @param {Object} viewport - Object that sets new default values for getDefaultViewport + * @returns {undefined} + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (viewport) { + state.viewport = viewport || {}; +}); + + +/***/ }), + +/***/ "./internal/storedColorPixelDataToCanvasImageData.js": +/*!***********************************************************!*\ + !*** ./internal/storedColorPixelDataToCanvasImageData.js ***! + \***********************************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _now_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./now.js */ "./internal/now.js"); + +/** + * Converts stored color pixel values to display pixel values using a LUT. + * + * Note: Skips alpha value for any input image pixel data. + * + * @param {Image} image A Cornerstone Image Object + * @param {Array} lut Lookup table array + * @param {Uint8ClampedArray} canvasImageDataData canvasImageData.data buffer filled with white pixels + * + * @returns {void} + * @memberof Internal + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (image, lut, canvasImageDataData) { + var start = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + var pixelData = image.getPixelData(); + image.stats.lastGetPixelDataTime = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])() - start; + var minPixelValue = image.minPixelValue; + var canvasImageDataIndex = 0; + var storedPixelDataIndex = 0; + var numPixels = pixelData.length; // NOTE: As of Nov 2014, most javascript engines have lower performance when indexing negative indexes. + // We have a special code path for this case that improves performance. Thanks to @jpambrun for this enhancement + + start = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + + if (minPixelValue < 0) { + while (storedPixelDataIndex < numPixels) { + canvasImageDataData[canvasImageDataIndex++] = lut[pixelData[storedPixelDataIndex++] + -minPixelValue]; // Red + + canvasImageDataData[canvasImageDataIndex++] = lut[pixelData[storedPixelDataIndex++] + -minPixelValue]; // Green + + canvasImageDataData[canvasImageDataIndex] = lut[pixelData[storedPixelDataIndex] + -minPixelValue]; // Blue + + storedPixelDataIndex += 2; + canvasImageDataIndex += 2; + } + } else { + while (storedPixelDataIndex < numPixels) { + canvasImageDataData[canvasImageDataIndex++] = lut[pixelData[storedPixelDataIndex++]]; // Red + + canvasImageDataData[canvasImageDataIndex++] = lut[pixelData[storedPixelDataIndex++]]; // Green + + canvasImageDataData[canvasImageDataIndex] = lut[pixelData[storedPixelDataIndex]]; // Blue + + storedPixelDataIndex += 2; + canvasImageDataIndex += 2; + } + } + + image.stats.lastStoredPixelDataToCanvasImageDataTime = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])() - start; +}); + +/***/ }), + +/***/ "./internal/storedPixelDataToCanvasImageData.js": +/*!******************************************************!*\ + !*** ./internal/storedPixelDataToCanvasImageData.js ***! + \******************************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _now_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./now.js */ "./internal/now.js"); + +/** + * This function transforms stored pixel values into a canvas image data buffer + * by using a LUT. This is the most performance sensitive code in cornerstone and + * we use a special trick to make this go as fast as possible. Specifically we + * use the alpha channel only to control the luminance rather than the red, green and + * blue channels which makes it over 3x faster. The canvasImageDataData buffer needs + * to be previously filled with white pixels. + * + * NOTE: Attribution would be appreciated if you use this technique! + * + * @param {Image} image A Cornerstone Image Object + * @param {Array} lut Lookup table array + * @param {Uint8ClampedArray} canvasImageDataData canvasImageData.data buffer filled with white pixels + * + * @returns {void} + * @memberof Internal + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (image, lut, canvasImageDataData) { + var start = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + var pixelData = image.getPixelData(); + image.stats.lastGetPixelDataTime = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])() - start; + var numPixels = pixelData.length; + var minPixelValue = image.minPixelValue; + var canvasImageDataIndex = 3; + var storedPixelDataIndex = 0; // NOTE: As of Nov 2014, most javascript engines have lower performance when indexing negative indexes. + // We have a special code path for this case that improves performance. Thanks to @jpambrun for this enhancement + // Added two paths (Int16Array, Uint16Array) to avoid polymorphic deoptimization in chrome. + + start = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + + if (pixelData instanceof Int16Array) { + if (minPixelValue < 0) { + while (storedPixelDataIndex < numPixels) { + canvasImageDataData[canvasImageDataIndex] = lut[pixelData[storedPixelDataIndex++] + -minPixelValue]; // Alpha + + canvasImageDataIndex += 4; + } + } else { + while (storedPixelDataIndex < numPixels) { + canvasImageDataData[canvasImageDataIndex] = lut[pixelData[storedPixelDataIndex++]]; // Alpha + + canvasImageDataIndex += 4; + } + } + } else if (pixelData instanceof Uint16Array) { + while (storedPixelDataIndex < numPixels) { + canvasImageDataData[canvasImageDataIndex] = lut[pixelData[storedPixelDataIndex++]]; // Alpha + + canvasImageDataIndex += 4; + } + } else if (minPixelValue < 0) { + while (storedPixelDataIndex < numPixels) { + canvasImageDataData[canvasImageDataIndex] = lut[pixelData[storedPixelDataIndex++] + -minPixelValue]; // Alpha + + canvasImageDataIndex += 4; + } + } else { + while (storedPixelDataIndex < numPixels) { + canvasImageDataData[canvasImageDataIndex] = lut[pixelData[storedPixelDataIndex++]]; // Alpha + + canvasImageDataIndex += 4; + } + } + + image.stats.lastStoredPixelDataToCanvasImageDataTime = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])() - start; +}); + +/***/ }), + +/***/ "./internal/storedPixelDataToCanvasImageDataColorLUT.js": +/*!**************************************************************!*\ + !*** ./internal/storedPixelDataToCanvasImageDataColorLUT.js ***! + \**************************************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _colors_index_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../colors/index.js */ "./colors/index.js"); +/* harmony import */ var _now_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./now.js */ "./internal/now.js"); + + +/** + * + * @param {Image} image A Cornerstone Image Object + * @param {LookupTable|Array} colorLut Lookup table array + * @param {Uint8ClampedArray} canvasImageDataData canvasImageData.data buffer filled with white pixels + * + * @returns {void} + * @memberof Internal + */ + +function storedPixelDataToCanvasImageDataColorLUT(image, colorLut, canvasImageDataData) { + var start = Object(_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])(); + var pixelData = image.getPixelData(); + image.stats.lastGetPixelDataTime = Object(_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])() - start; + var numPixels = pixelData.length; + var minPixelValue = image.minPixelValue; + var canvasImageDataIndex = 0; + var storedPixelDataIndex = 0; + var rgba; + var clut; + start = Object(_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])(); + + if (colorLut instanceof _colors_index_js__WEBPACK_IMPORTED_MODULE_0__["default"].LookupTable) { + clut = colorLut.Table; + } else { + clut = colorLut; + } + + if (minPixelValue < 0) { + while (storedPixelDataIndex < numPixels) { + rgba = clut[pixelData[storedPixelDataIndex++] + -minPixelValue]; + canvasImageDataData[canvasImageDataIndex++] = rgba[0]; + canvasImageDataData[canvasImageDataIndex++] = rgba[1]; + canvasImageDataData[canvasImageDataIndex++] = rgba[2]; + canvasImageDataData[canvasImageDataIndex++] = rgba[3]; + } + } else { + while (storedPixelDataIndex < numPixels) { + rgba = clut[pixelData[storedPixelDataIndex++]]; + canvasImageDataData[canvasImageDataIndex++] = rgba[0]; + canvasImageDataData[canvasImageDataIndex++] = rgba[1]; + canvasImageDataData[canvasImageDataIndex++] = rgba[2]; + canvasImageDataData[canvasImageDataIndex++] = rgba[3]; + } + } + + image.stats.lastStoredPixelDataToCanvasImageDataTime = Object(_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])() - start; +} + +/* harmony default export */ __webpack_exports__["default"] = (storedPixelDataToCanvasImageDataColorLUT); + +/***/ }), + +/***/ "./internal/storedPixelDataToCanvasImageDataPseudocolorLUT.js": +/*!********************************************************************!*\ + !*** ./internal/storedPixelDataToCanvasImageDataPseudocolorLUT.js ***! + \********************************************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _colors_index_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../colors/index.js */ "./colors/index.js"); +/* harmony import */ var _now_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./now.js */ "./internal/now.js"); + + +/** + * + * @param {Image} image A Cornerstone Image Object + * @param {Array} grayscaleLut Lookup table array + * @param {LookupTable|Array} colorLut Lookup table array + * @param {Uint8ClampedArray} canvasImageDataData canvasImageData.data buffer filled with white pixels + * + * @returns {void} + * @memberof Internal + */ + +function storedPixelDataToCanvasImageDataPseudocolorLUT(image, grayscaleLut, colorLut, canvasImageDataData) { + var start = Object(_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])(); + var pixelData = image.getPixelData(); + image.stats.lastGetPixelDataTime = Object(_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])() - start; + var numPixels = pixelData.length; + var minPixelValue = image.minPixelValue; + var canvasImageDataIndex = 0; + var storedPixelDataIndex = 0; + var grayscale; + var rgba; + var clut; + start = Object(_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])(); + + if (colorLut instanceof _colors_index_js__WEBPACK_IMPORTED_MODULE_0__["default"].LookupTable) { + clut = colorLut.Table; + } else { + clut = colorLut; + } + + if (minPixelValue < 0) { + while (storedPixelDataIndex < numPixels) { + grayscale = grayscaleLut[pixelData[storedPixelDataIndex++] + -minPixelValue]; + rgba = clut[grayscale]; + canvasImageDataData[canvasImageDataIndex++] = rgba[0]; + canvasImageDataData[canvasImageDataIndex++] = rgba[1]; + canvasImageDataData[canvasImageDataIndex++] = rgba[2]; + canvasImageDataData[canvasImageDataIndex++] = rgba[3]; + } + } else { + while (storedPixelDataIndex < numPixels) { + grayscale = grayscaleLut[pixelData[storedPixelDataIndex++]]; + rgba = clut[grayscale]; + canvasImageDataData[canvasImageDataIndex++] = rgba[0]; + canvasImageDataData[canvasImageDataIndex++] = rgba[1]; + canvasImageDataData[canvasImageDataIndex++] = rgba[2]; + canvasImageDataData[canvasImageDataIndex++] = rgba[3]; + } + } + + image.stats.lastStoredPixelDataToCanvasImageDataTime = Object(_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])() - start; +} + +/* harmony default export */ __webpack_exports__["default"] = (storedPixelDataToCanvasImageDataPseudocolorLUT); + +/***/ }), + +/***/ "./internal/storedPixelDataToCanvasImageDataRGBA.js": +/*!**********************************************************!*\ + !*** ./internal/storedPixelDataToCanvasImageDataRGBA.js ***! + \**********************************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _now_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./now.js */ "./internal/now.js"); + +/** + * This function transforms stored pixel values into a canvas image data buffer + * by using a LUT. + * + * @param {Image} image A Cornerstone Image Object + * @param {Array} lut Lookup table array + * @param {Uint8ClampedArray} canvasImageDataData canvasImageData.data buffer filled with white pixels + * + * @returns {void} + * @memberof Internal + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (image, lut, canvasImageDataData) { + var start = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + var pixelData = image.getPixelData(); + image.stats.lastGetPixelDataTime = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])() - start; + var numPixels = pixelData.length; + var minPixelValue = image.minPixelValue; + var canvasImageDataIndex = 0; + var storedPixelDataIndex = 0; + var pixelValue; // NOTE: As of Nov 2014, most javascript engines have lower performance when indexing negative indexes. + // We have a special code path for this case that improves performance. Thanks to @jpambrun for this enhancement + // Added two paths (Int16Array, Uint16Array) to avoid polymorphic deoptimization in chrome. + + start = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + + if (pixelData instanceof Int16Array) { + if (minPixelValue < 0) { + while (storedPixelDataIndex < numPixels) { + pixelValue = lut[pixelData[storedPixelDataIndex++] + -minPixelValue]; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = 255; // Alpha + } + } else { + while (storedPixelDataIndex < numPixels) { + pixelValue = lut[pixelData[storedPixelDataIndex++]]; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = 255; // Alpha + } + } + } else if (pixelData instanceof Uint16Array) { + while (storedPixelDataIndex < numPixels) { + pixelValue = lut[pixelData[storedPixelDataIndex++]]; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = 255; // Alpha + } + } else if (minPixelValue < 0) { + while (storedPixelDataIndex < numPixels) { + pixelValue = lut[pixelData[storedPixelDataIndex++] + -minPixelValue]; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = 255; // Alpha + } + } else { + while (storedPixelDataIndex < numPixels) { + pixelValue = lut[pixelData[storedPixelDataIndex++]]; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = pixelValue; + canvasImageDataData[canvasImageDataIndex++] = 255; // Alpha + } + } + + image.stats.lastStoredPixelDataToCanvasImageDataTime = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])() - start; +}); + +/***/ }), + +/***/ "./internal/storedRGBAPixelDataToCanvasImageData.js": +/*!**********************************************************!*\ + !*** ./internal/storedRGBAPixelDataToCanvasImageData.js ***! + \**********************************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _now_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./now.js */ "./internal/now.js"); + +/** + * Converts stored RGBA color pixel values to display pixel values using a LUT. + * + * @param {Image} image A Cornerstone Image Object + * @param {Array} lut Lookup table array + * @param {Uint8ClampedArray} canvasImageDataData canvasImageData.data buffer filled with white pixels + * + * @returns {void} + * @memberof Internal + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (image, lut, canvasImageDataData) { + var start = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + var pixelData = image.getPixelData(); + image.stats.lastGetPixelDataTime = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])() - start; + var minPixelValue = image.minPixelValue; + var canvasImageDataIndex = 0; + var storedPixelDataIndex = 0; + var numPixels = pixelData.length; // NOTE: As of Nov 2014, most javascript engines have lower performance when indexing negative indexes. + // We have a special code path for this case that improves performance. Thanks to @jpambrun for this enhancement + + start = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + + if (minPixelValue < 0) { + while (storedPixelDataIndex < numPixels) { + canvasImageDataData[canvasImageDataIndex++] = lut[pixelData[storedPixelDataIndex++] + -minPixelValue]; // Red + + canvasImageDataData[canvasImageDataIndex++] = lut[pixelData[storedPixelDataIndex++] + -minPixelValue]; // Green + + canvasImageDataData[canvasImageDataIndex++] = lut[pixelData[storedPixelDataIndex++] + -minPixelValue]; // Blue + + canvasImageDataData[canvasImageDataIndex++] = pixelData[storedPixelDataIndex++]; + } + } else { + while (storedPixelDataIndex < numPixels) { + canvasImageDataData[canvasImageDataIndex++] = lut[pixelData[storedPixelDataIndex++]]; // Red + + canvasImageDataData[canvasImageDataIndex++] = lut[pixelData[storedPixelDataIndex++]]; // Green + + canvasImageDataData[canvasImageDataIndex++] = lut[pixelData[storedPixelDataIndex++]]; // Blue + + canvasImageDataData[canvasImageDataIndex++] = pixelData[storedPixelDataIndex++]; + } + } + + image.stats.lastStoredPixelDataToCanvasImageDataTime = Object(_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])() - start; +}); + +/***/ }), + +/***/ "./internal/transform.js": +/*!*******************************!*\ + !*** ./internal/transform.js ***! + \*******************************/ +/*! exports provided: Transform */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "Transform", function() { return Transform; }); +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +// By Simon Sarris +// Www.simonsarris.com +// Sarris@acm.org +// +// Free to use and distribute at will +// So long as you are nice to people, etc +// Simple class for keeping track of the current transformation matrix +// For instance: +// Var t = new Transform(); +// T.rotate(5); +// Var m = t.m; +// Ctx.setTransform(m[0], m[1], m[2], m[3], m[4], m[5]); +// Is equivalent to: +// Ctx.rotate(5); +// But now you can retrieve it :) +// Remember that this does not account for any CSS transforms applied to the canvas +var Transform = /*#__PURE__*/function () { + function Transform() { + _classCallCheck(this, Transform); + + this.reset(); + } + + _createClass(Transform, [{ + key: "reset", + value: function reset() { + this.m = [1, 0, 0, 1, 0, 0]; + } + }, { + key: "clone", + value: function clone() { + var transform = new Transform(); + transform.m[0] = this.m[0]; + transform.m[1] = this.m[1]; + transform.m[2] = this.m[2]; + transform.m[3] = this.m[3]; + transform.m[4] = this.m[4]; + transform.m[5] = this.m[5]; + return transform; + } + }, { + key: "multiply", + value: function multiply(matrix) { + var m11 = this.m[0] * matrix.m[0] + this.m[2] * matrix.m[1]; + var m12 = this.m[1] * matrix.m[0] + this.m[3] * matrix.m[1]; + var m21 = this.m[0] * matrix.m[2] + this.m[2] * matrix.m[3]; + var m22 = this.m[1] * matrix.m[2] + this.m[3] * matrix.m[3]; + var dx = this.m[0] * matrix.m[4] + this.m[2] * matrix.m[5] + this.m[4]; + var dy = this.m[1] * matrix.m[4] + this.m[3] * matrix.m[5] + this.m[5]; + this.m[0] = m11; + this.m[1] = m12; + this.m[2] = m21; + this.m[3] = m22; + this.m[4] = dx; + this.m[5] = dy; + } + }, { + key: "invert", + value: function invert() { + var d = 1 / (this.m[0] * this.m[3] - this.m[1] * this.m[2]); + var m0 = this.m[3] * d; + var m1 = -this.m[1] * d; + var m2 = -this.m[2] * d; + var m3 = this.m[0] * d; + var m4 = d * (this.m[2] * this.m[5] - this.m[3] * this.m[4]); + var m5 = d * (this.m[1] * this.m[4] - this.m[0] * this.m[5]); + this.m[0] = m0; + this.m[1] = m1; + this.m[2] = m2; + this.m[3] = m3; + this.m[4] = m4; + this.m[5] = m5; + } + }, { + key: "rotate", + value: function rotate(rad) { + var c = Math.cos(rad); + var s = Math.sin(rad); + var m11 = this.m[0] * c + this.m[2] * s; + var m12 = this.m[1] * c + this.m[3] * s; + var m21 = this.m[0] * -s + this.m[2] * c; + var m22 = this.m[1] * -s + this.m[3] * c; + this.m[0] = m11; + this.m[1] = m12; + this.m[2] = m21; + this.m[3] = m22; + } + }, { + key: "translate", + value: function translate(x, y) { + this.m[4] += this.m[0] * x + this.m[2] * y; + this.m[5] += this.m[1] * x + this.m[3] * y; + } + }, { + key: "scale", + value: function scale(sx, sy) { + this.m[0] *= sx; + this.m[1] *= sx; + this.m[2] *= sy; + this.m[3] *= sy; + } + }, { + key: "transformPoint", + value: function transformPoint(px, py) { + var x = px; + var y = py; + px = x * this.m[0] + y * this.m[2] + this.m[4]; + py = x * this.m[1] + y * this.m[3] + this.m[5]; + return { + x: px, + y: py + }; + } + }]); + + return Transform; +}(); + +/***/ }), + +/***/ "./internal/tryEnableWebgl.js": +/*!************************************!*\ + !*** ./internal/tryEnableWebgl.js ***! + \************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _webgl_index_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../webgl/index.js */ "./webgl/index.js"); + +/** + * Checks if webGL is supported and initializes the rendering engine. + * @param {any} options Options to check if webgl rendering is requested (e.g. enable webgl by passing {renderer: 'webgl'}) + * @returns {Boolean} true if webgl rendering has been successfully initialized. Otherwise, false. + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (options) { + if (_webgl_index_js__WEBPACK_IMPORTED_MODULE_0__["default"].renderer.isWebGLAvailable()) { + // If WebGL is available on the device, initialize the renderer + // And return the renderCanvas from the WebGL rendering path + _webgl_index_js__WEBPACK_IMPORTED_MODULE_0__["default"].renderer.initRenderer(); + options.renderer = 'webgl'; + options.desynchronized = true; + options.preserveDrawingBuffer = true; + return true; + } // If WebGL is not available on this device, we will fall back + // To using the Canvas renderer + + + console.error('WebGL not available, falling back to Canvas renderer'); + delete options.renderer; + delete options.preserveDrawingBuffer; + return false; +}); + +/***/ }), + +/***/ "./internal/validator.js": +/*!*******************************!*\ + !*** ./internal/validator.js ***! + \*******************************/ +/*! exports provided: validateParameterUndefined, validateParameterUndefinedOrNull */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "validateParameterUndefined", function() { return validateParameterUndefined; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "validateParameterUndefinedOrNull", function() { return validateParameterUndefinedOrNull; }); +/** + * Check if the supplied parameter is undefined and throws and error + * @param {any} checkParam the parameter to validate for undefined + * @param {any} errorMsg the error message to be thrown + * @returns {void} + * @memberof internal + */ +function validateParameterUndefined(checkParam, errorMsg) { + if (checkParam === undefined) { + throw new Error(errorMsg); + } +} +/** + * Check if the supplied parameter is undefined or null and throws and error + * @param {any} checkParam the parameter to validate for undefined + * @param {any} errorMsg the error message to be thrown + * @returns {void} + * @memberof internal + */ + +function validateParameterUndefinedOrNull(checkParam, errorMsg) { + if (checkParam === undefined || checkParam === null) { + throw new Error(errorMsg); + } +} + +/***/ }), + +/***/ "./invalidate.js": +/*!***********************!*\ + !*** ./invalidate.js ***! + \***********************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./triggerEvent.js */ "./triggerEvent.js"); +/* harmony import */ var _events_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./events.js */ "./events.js"); + + + +/** + * Sets the invalid flag on the enabled element and fires an event + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @returns {void} + * @memberof Drawing + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + enabledElement.invalid = true; + enabledElement.needsRedraw = true; + var eventData = { + element: element + }; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__["default"])(element, _events_js__WEBPACK_IMPORTED_MODULE_2__["default"].INVALIDATED, eventData); +}); + +/***/ }), + +/***/ "./invalidateImageId.js": +/*!******************************!*\ + !*** ./invalidateImageId.js ***! + \******************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _internal_drawImage_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./internal/drawImage.js */ "./internal/drawImage.js"); + + +/** + * Forces the image to be updated/redrawn for all enabled elements + * displaying the specified imageId + * + * @param {string} imageId The imageId of the Cornerstone Image Object to redraw + * @returns {void} + * @memberof Drawing + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (imageId) { + var enabledElements = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElementsByImageId"])(imageId); + enabledElements.forEach(function (enabledElement) { + Object(_internal_drawImage_js__WEBPACK_IMPORTED_MODULE_1__["default"])(enabledElement, true); + }); +}); + +/***/ }), + +/***/ "./layers.js": +/*!*******************!*\ + !*** ./layers.js ***! + \*******************/ +/*! exports provided: rescaleImage, addLayer, removeLayer, getLayer, getLayers, getVisibleLayers, setActiveLayer, setLayerImage, getActiveLayer, purgeLayers */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rescaleImage", function() { return rescaleImage; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "addLayer", function() { return addLayer; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "removeLayer", function() { return removeLayer; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getLayer", function() { return getLayer; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getLayers", function() { return getLayers; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getVisibleLayers", function() { return getVisibleLayers; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setActiveLayer", function() { return setActiveLayer; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setLayerImage", function() { return setLayerImage; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getActiveLayer", function() { return getActiveLayer; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "purgeLayers", function() { return purgeLayers; }); +/* harmony import */ var _internal_guid_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./internal/guid.js */ "./internal/guid.js"); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./internal/getDefaultViewport.js */ "./internal/getDefaultViewport.js"); +/* harmony import */ var _internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./internal/getDisplayedArea.js */ "./internal/getDisplayedArea.js"); +/* harmony import */ var _updateImage_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./updateImage.js */ "./updateImage.js"); +/* harmony import */ var _triggerEvent_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./triggerEvent.js */ "./triggerEvent.js"); +/* harmony import */ var _events_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./events.js */ "./events.js"); + + + + + + + +/** + * @module EnabledElementLayers + */ + +/** + * Helper function to trigger an event on a Cornerstone element with + * a specific layerId + * + * @param {String} eventName The event name (e.g. CornerstoneLayerAdded) + * @param {EnabledElement} enabledElement The Cornerstone enabled element + * @param {String} layerId The layer's unique identifier + * @returns {void} + * @memberof EnabledElementLayers + */ + +function triggerEventForLayer(eventName, enabledElement, layerId) { + var element = enabledElement.element; + var eventData = { + viewport: enabledElement.viewport, + element: enabledElement.element, + image: enabledElement.image, + enabledElement: enabledElement, + layerId: layerId + }; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_5__["default"])(element, eventName, eventData); +} +/** + * Rescale the target layer to the base layer based on the + * relative size of each image and their pixel dimensions. + * + * This function will update the Viewport parameters of the + * target layer to a new scale. + * + * @param {EnabledElementLayer} baseLayer The base layer + * @param {EnabledElementLayer} targetLayer The target layer to rescale + * @returns {void} + * @memberof EnabledElementLayers + */ + + +function rescaleImage(baseLayer, targetLayer) { + if (baseLayer.layerId === targetLayer.layerId) { + throw new Error('rescaleImage: both arguments represent the same layer'); + } + + var baseImage = baseLayer.image; + var targetImage = targetLayer.image; // Return if these images don't have an imageId (e.g. for dynamic images) + + if (!baseImage.imageId || !targetImage.imageId) { + return; + } // Column pixel spacing need to be considered when calculating the + // ratio between the layer added and base layer images + + + var targetDisplayedArea = Object(_internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_3__["default"])(targetImage, targetLayer.viewport); + var baseDisplayedArea = Object(_internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_3__["default"])(baseImage, baseLayer.viewport); + var colRelative = targetDisplayedArea.columnPixelSpacing * targetImage.width / (baseDisplayedArea.columnPixelSpacing * baseImage.width); + var viewportRatio = targetLayer.viewport.scale / baseLayer.viewport.scale * colRelative; + targetLayer.viewport.scale = baseLayer.viewport.scale * viewportRatio; +} +/** + * Add a layer to a Cornerstone element + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @param {Image} image A Cornerstone Image object to add as a new layer + * @param {Object} options Options for the layer + * + * @returns {String} layerId The new layer's unique identifier + * @memberof EnabledElementLayers + */ + +function addLayer(element, image, options) { + var layerId = Object(_internal_guid_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"])(element); + var layers = enabledElement.layers; + var viewport; + + if (image) { + viewport = Object(_internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_2__["default"])(enabledElement.canvas, image); // Override the defaults if any optional viewport settings + // have been specified + + if (options && options.viewport) { + viewport = Object.assign(viewport, options.viewport); + } + } // Set syncViewports to true by default when a new layer is added + + + if (enabledElement.syncViewports !== false) { + enabledElement.syncViewports = true; + } + + var newLayer = { + image: image, + layerId: layerId, + viewport: viewport, + options: options || {}, + renderingTools: {} + }; // Rescale the new layer based on the base layer to make sure + // they will have a proportional size (pixel spacing) + + if (layers.length && image) { + rescaleImage(layers[0], newLayer); + } + + layers.push(newLayer); + triggerEventForLayer(_events_js__WEBPACK_IMPORTED_MODULE_6__["default"].LAYER_ADDED, enabledElement, layerId); // Set the layer as active if it's the first layer added + + if (layers.length === 1 && image) { + setActiveLayer(element, layerId); + } + + return layerId; +} +/** + * Remove a layer from a Cornerstone element given a layer ID + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @param {String} layerId The unique identifier for the layer + * @returns {void} + * @memberof EnabledElementLayers + */ + +function removeLayer(element, layerId) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"])(element); + var layers = enabledElement.layers; + var index = enabledElement.layers.findIndex(function (layer) { + return layer.layerId === layerId; + }); + + if (index !== -1) { + layers.splice(index, 1); // If the current layer is active, and we have other layers, + // switch to the first layer that remains in the array + + if (layerId === enabledElement.activeLayerId && layers.length) { + setActiveLayer(element, layers[0].layerId); + } + + triggerEventForLayer(_events_js__WEBPACK_IMPORTED_MODULE_6__["default"].LAYER_REMOVED, enabledElement, layerId); + } +} +/** + * Retrieve a layer from a Cornerstone element given a layer ID + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @param {String} layerId The unique identifier for the layer + * @return {EnabledElementLayer} The layer + * @memberof EnabledElementLayers + */ + +function getLayer(element, layerId) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"])(element); + return enabledElement.layers.find(function (layer) { + return layer.layerId === layerId; + }); +} +/** + * Retrieve all layers for a Cornerstone element + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * + * @return {EnabledElementLayer[]} An array of layers + * @memberof EnabledElementLayers + */ + +function getLayers(element) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"])(element); + return enabledElement.layers; +} +/** + * Retrieve all visible layers for a Cornerstone element + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * + * @return {EnabledElementLayer[]} An array of layers + * @memberof EnabledElementLayers + */ + +function getVisibleLayers(element) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"])(element); + return enabledElement.layers.filter(function (layer) { + return layer.options && layer.options.visible !== false && layer.options.opacity !== 0; + }); +} +/** + * Set the active layer for a Cornerstone element + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @param {String} layerId The unique identifier for the layer + * @returns {void} + * @memberof EnabledElementLayers + */ + +function setActiveLayer(element, layerId) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"])(element); // Stop here if this layer is already active + + if (enabledElement.activeLayerId === layerId) { + return; + } + + var index = enabledElement.layers.findIndex(function (layer) { + return layer.layerId === layerId; + }); + + if (index === -1) { + throw new Error('setActiveLayer: layer not found in layers array'); + } + + var layer = enabledElement.layers[index]; + + if (!layer.image) { + throw new Error('setActiveLayer: layer with undefined image cannot be set as active.'); + } + + enabledElement.activeLayerId = layerId; + enabledElement.image = layer.image; + enabledElement.viewport = layer.viewport; + Object(_updateImage_js__WEBPACK_IMPORTED_MODULE_4__["default"])(element); + triggerEventForLayer(_events_js__WEBPACK_IMPORTED_MODULE_6__["default"].ACTIVE_LAYER_CHANGED, enabledElement, layerId); +} +/** + * Set a new image for a specific layerId + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @param {Image} image The image to be displayed in this layer + * @param {String} [layerId] The unique identifier for the layer + * @returns {void} + * @memberof EnabledElementLayers + */ + +function setLayerImage(element, image, layerId) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"])(element); + var baseLayer = enabledElement.layers[0]; + var layer; + + if (layerId) { + layer = getLayer(element, layerId); + } else { + layer = getActiveLayer(element); + } + + if (!layer) { + throw new Error('setLayerImage: Layer not found'); + } + + layer.image = image; + + if (!image) { + layer.viewport = undefined; + return; + } + + if (!layer.viewport) { + var defaultViewport = Object(_internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_2__["default"])(enabledElement.canvas, image); // Override the defaults if any optional viewport settings + // have been specified + + if (layer.options && layer.options.viewport) { + layer.viewport = Object.assign(defaultViewport, layer.options.viewport); + } + + if (baseLayer.layerId !== layerId) { + rescaleImage(baseLayer, layer); + } + } +} +/** + * Retrieve the currently active layer for a Cornerstone element + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @return {EnabledElementLayer} The currently active layer + * @memberof EnabledElementLayers + */ + +function getActiveLayer(element) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"])(element); + return enabledElement.layers.find(function (layer) { + return layer.layerId === enabledElement.activeLayerId; + }); +} +/** + * Purge the layers + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * + * @returns {void} + */ + +function purgeLayers(element) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"])(element); + enabledElement.layers = []; + delete enabledElement.activeLayerId; + delete enabledElement.lastSyncViewportsState; +} + +/***/ }), + +/***/ "./metaData.js": +/*!*********************!*\ + !*** ./metaData.js ***! + \*********************/ +/*! exports provided: addProvider, removeProvider, default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "addProvider", function() { return addProvider; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "removeProvider", function() { return removeProvider; }); +// This module defines a way to access various metadata about an imageId. This layer of abstraction exists +// So metadata can be provided in different ways (e.g. by parsing DICOM P10 or by a WADO-RS document) +var providers = []; +/** + * @module Metadata + */ + +/** + * Adds a metadata provider with the specified priority + * @param {Function} provider Metadata provider function + * @param {Number} [priority=0] - 0 is default/normal, > 0 is high, < 0 is low + * + * @returns {void} + * @memberof Metadata + */ + +function addProvider(provider) { + var priority = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0; + var i; // Find the right spot to insert this provider based on priority + + for (i = 0; i < providers.length; i++) { + if (providers[i].priority <= priority) { + break; + } + } // Insert the decode task at position i + + + providers.splice(i, 0, { + priority: priority, + provider: provider + }); +} +/** + * Removes the specified provider + * + * @param {Function} provider Metadata provider function + * + * @returns {void} + * @memberof Metadata + */ + +function removeProvider(provider) { + for (var i = 0; i < providers.length; i++) { + if (providers[i].provider === provider) { + providers.splice(i, 1); + break; + } + } +} +/** + * Gets metadata from the registered metadata providers. Will call each one from highest priority to lowest + * until one responds + * + * @param {String} type The type of metadata requested from the metadata store + * @param {String} imageId The Cornerstone Image Object's imageId + * + * @returns {*} The metadata retrieved from the metadata store + * @memberof Metadata + */ + +function getMetaData(type, imageId) { + // Invoke each provider in priority order until one returns something + for (var i = 0; i < providers.length; i++) { + var result = providers[i].provider(type, imageId); + + if (result !== undefined) { + return result; + } + } +} + +/* harmony default export */ __webpack_exports__["default"] = ({ + addProvider: addProvider, + removeProvider: removeProvider, + get: getMetaData +}); + +/***/ }), + +/***/ "./pageToPixel.js": +/*!************************!*\ + !*** ./pageToPixel.js ***! + \************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _internal_getTransform_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./internal/getTransform.js */ "./internal/getTransform.js"); + + +/** + * Converts a point in the page coordinate system to the pixel coordinate + * system + * + * @param {HTMLElement} element The Cornerstone element within which the input point lies + * @param {Number} pageX The x value in the page coordinate system + * @param {Number} pageY The y value in the page coordinate system + * + * @returns {{x: Number, y: Number}} The transformed point in the pixel coordinate system + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element, pageX, pageY) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + + if (enabledElement.image === undefined) { + throw new Error('image has not been loaded yet'); + } // Convert the pageX and pageY to the canvas client coordinates + + + var rect = element.getBoundingClientRect(); + var clientX = pageX - rect.left - window.pageXOffset; + var clientY = pageY - rect.top - window.pageYOffset; + var pt = { + x: clientX, + y: clientY + }; + var transform = Object(_internal_getTransform_js__WEBPACK_IMPORTED_MODULE_1__["default"])(enabledElement); + transform.invert(); + return transform.transformPoint(pt.x, pt.y); +}); + +/***/ }), + +/***/ "./pixelDataToFalseColorData.js": +/*!**************************************!*\ + !*** ./pixelDataToFalseColorData.js ***! + \**************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return pixelDataToFalseColorData; }); +/* harmony import */ var _colors_index_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./colors/index.js */ "./colors/index.js"); + +/** + * Converts the image pixel data into a false color data + * + * @param {Image} image A Cornerstone Image Object + * @param {Object} lookupTable A lookup table Object + * + * @returns {void} + * @deprecated This function is superseded by the ability to set the Viewport parameters + * to include colormaps. + */ + +function pixelDataToFalseColorData(image, lookupTable) { + if (image.color && !image.falseColor) { + throw new Error('Color transforms are not implemented yet'); + } + + var minPixelValue = image.minPixelValue; + var canvasImageDataIndex = 0; + var storedPixelDataIndex = 0; + var numPixels = image.width * image.height; + var origPixelData = image.origPixelData || image.getPixelData(); + var storedColorPixelData = new Uint8Array(numPixels * 4); + var sp; + var mapped; + image.color = true; + image.falseColor = true; + image.origPixelData = origPixelData; + + if (lookupTable instanceof _colors_index_js__WEBPACK_IMPORTED_MODULE_0__["default"].LookupTable) { + lookupTable.build(); + + while (storedPixelDataIndex < numPixels) { + sp = origPixelData[storedPixelDataIndex++]; + mapped = lookupTable.mapValue(sp); + storedColorPixelData[canvasImageDataIndex++] = mapped[0]; + storedColorPixelData[canvasImageDataIndex++] = mapped[1]; + storedColorPixelData[canvasImageDataIndex++] = mapped[2]; + storedColorPixelData[canvasImageDataIndex++] = mapped[3]; + } + } else if (minPixelValue < 0) { + while (storedPixelDataIndex < numPixels) { + sp = origPixelData[storedPixelDataIndex++]; + storedColorPixelData[canvasImageDataIndex++] = lookupTable[sp + -minPixelValue][0]; // Red + + storedColorPixelData[canvasImageDataIndex++] = lookupTable[sp + -minPixelValue][1]; // Green + + storedColorPixelData[canvasImageDataIndex++] = lookupTable[sp + -minPixelValue][2]; // Blue + + storedColorPixelData[canvasImageDataIndex++] = lookupTable[sp + -minPixelValue][3]; // Alpha + } + } else { + while (storedPixelDataIndex < numPixels) { + sp = origPixelData[storedPixelDataIndex++]; + storedColorPixelData[canvasImageDataIndex++] = lookupTable[sp][0]; // Red + + storedColorPixelData[canvasImageDataIndex++] = lookupTable[sp][1]; // Green + + storedColorPixelData[canvasImageDataIndex++] = lookupTable[sp][2]; // Blue + + storedColorPixelData[canvasImageDataIndex++] = lookupTable[sp][3]; // Alpha + } + } + + image.rgba = true; + image.cachedLut = undefined; + image.render = undefined; + image.slope = 1; + image.intercept = 0; + image.minPixelValue = 0; + image.maxPixelValue = 255; + image.windowWidth = 255; + image.windowCenter = 128; + + image.getPixelData = function () { + return storedColorPixelData; + }; +} + +/***/ }), + +/***/ "./pixelToCanvas.js": +/*!**************************!*\ + !*** ./pixelToCanvas.js ***! + \**************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _internal_getTransform_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./internal/getTransform.js */ "./internal/getTransform.js"); + + +/** + * Converts a point in the pixel coordinate system to the canvas coordinate system + * system. This can be used to render using canvas context without having the weird + * side effects that come from scaling and non square pixels + * + * @param {HTMLElement} element An HTML Element enabled for Cornerstone + * @param {{x: Number, y: Number}} pt The transformed point in the pixel coordinate system + * + * @returns {{x: Number, y: Number}} The input point in the canvas coordinate system + * @memberof PixelCoordinateSystem + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element, pt) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + var transform = Object(_internal_getTransform_js__WEBPACK_IMPORTED_MODULE_1__["default"])(enabledElement); + return transform.transformPoint(pt.x, pt.y); +}); + +/***/ }), + +/***/ "./rendering/doesImageNeedToBeRendered.js": +/*!************************************************!*\ + !*** ./rendering/doesImageNeedToBeRendered.js ***! + \************************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/** + * Determine whether or not an Enabled Element needs to be re-rendered. + * + * If the imageId has changed, or if any of the last rendered viewport + * parameters have changed, this function will return true. + * + * @param {EnabledElement} enabledElement An Enabled Element + * @param {Image} image An Image + * @return {boolean} Whether or not the Enabled Element needs to re-render its image + * @memberof rendering + */ +/* harmony default export */ __webpack_exports__["default"] = (function (enabledElement, image) { + var lastRenderedImageId = enabledElement.renderingTools.lastRenderedImageId; + var lastRenderedViewport = enabledElement.renderingTools.lastRenderedViewport; + return image.imageId !== lastRenderedImageId || !lastRenderedViewport || lastRenderedViewport.windowCenter !== enabledElement.viewport.voi.windowCenter || lastRenderedViewport.windowWidth !== enabledElement.viewport.voi.windowWidth || lastRenderedViewport.invert !== enabledElement.viewport.invert || lastRenderedViewport.rotation !== enabledElement.viewport.rotation || lastRenderedViewport.hflip !== enabledElement.viewport.hflip || lastRenderedViewport.vflip !== enabledElement.viewport.vflip || lastRenderedViewport.modalityLUT !== enabledElement.viewport.modalityLUT || lastRenderedViewport.voiLUT !== enabledElement.viewport.voiLUT || lastRenderedViewport.colormap !== enabledElement.viewport.colormap; +}); + +/***/ }), + +/***/ "./rendering/getLut.js": +/*!*****************************!*\ + !*** ./rendering/getLut.js ***! + \*****************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _internal_computeAutoVoi_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../internal/computeAutoVoi.js */ "./internal/computeAutoVoi.js"); +/* harmony import */ var _lutMatches_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./lutMatches.js */ "./rendering/lutMatches.js"); +/* harmony import */ var _internal_generateLut_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../internal/generateLut.js */ "./internal/generateLut.js"); + + + +/** + * Retrieve or generate a LUT Array for an Image and Viewport + * + * @param {Image} image An Image Object + * @param {Viewport} viewport An Viewport Object + * @param {Boolean} invalidated Whether or not the LUT data has been invalidated + * (e.g. by a change to the windowWidth, windowCenter, or invert viewport parameters). + * @return {Uint8ClampedArray} LUT Array + * @memberof rendering + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (image, viewport, invalidated) { + // If we have a cached lut and it has the right values, return it immediately + if (image.cachedLut !== undefined && image.cachedLut.windowCenter === viewport.voi.windowCenter && image.cachedLut.windowWidth === viewport.voi.windowWidth && Object(_lutMatches_js__WEBPACK_IMPORTED_MODULE_1__["default"])(image.cachedLut.modalityLUT, viewport.modalityLUT) && Object(_lutMatches_js__WEBPACK_IMPORTED_MODULE_1__["default"])(image.cachedLut.voiLUT, viewport.voiLUT) && image.cachedLut.invert === viewport.invert && invalidated !== true) { + return image.cachedLut.lutArray; + } + + Object(_internal_computeAutoVoi_js__WEBPACK_IMPORTED_MODULE_0__["default"])(viewport, image); // Lut is invalid or not present, regenerate it and cache it + + Object(_internal_generateLut_js__WEBPACK_IMPORTED_MODULE_2__["default"])(image, viewport.voi.windowWidth, viewport.voi.windowCenter, viewport.invert, viewport.modalityLUT, viewport.voiLUT); + image.cachedLut.windowWidth = viewport.voi.windowWidth; + image.cachedLut.windowCenter = viewport.voi.windowCenter; + image.cachedLut.invert = viewport.invert; + image.cachedLut.voiLUT = viewport.voiLUT; + image.cachedLut.modalityLUT = viewport.modalityLUT; + return image.cachedLut.lutArray; +}); + +/***/ }), + +/***/ "./rendering/index.js": +/*!****************************!*\ + !*** ./rendering/index.js ***! + \****************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _renderColorImage_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./renderColorImage.js */ "./rendering/renderColorImage.js"); +/* harmony import */ var _renderGrayscaleImage_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./renderGrayscaleImage.js */ "./rendering/renderGrayscaleImage.js"); +/* harmony import */ var _renderWebImage_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./renderWebImage.js */ "./rendering/renderWebImage.js"); +/* harmony import */ var _renderPseudoColorImage_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./renderPseudoColorImage.js */ "./rendering/renderPseudoColorImage.js"); +/* harmony import */ var _renderLabelMapImage_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./renderLabelMapImage.js */ "./rendering/renderLabelMapImage.js"); +/* harmony import */ var _renderToCanvas_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./renderToCanvas.js */ "./rendering/renderToCanvas.js"); + + + + + + +/** + * @module rendering + */ + +/* harmony default export */ __webpack_exports__["default"] = ({ + colorImage: _renderColorImage_js__WEBPACK_IMPORTED_MODULE_0__["renderColorImage"], + grayscaleImage: _renderGrayscaleImage_js__WEBPACK_IMPORTED_MODULE_1__["renderGrayscaleImage"], + webImage: _renderWebImage_js__WEBPACK_IMPORTED_MODULE_2__["renderWebImage"], + pseudoColorImage: _renderPseudoColorImage_js__WEBPACK_IMPORTED_MODULE_3__["renderPseudoColorImage"], + labelMapImage: _renderLabelMapImage_js__WEBPACK_IMPORTED_MODULE_4__["renderLabelMapImage"], + toCanvas: _renderToCanvas_js__WEBPACK_IMPORTED_MODULE_5__["default"] +}); + +/***/ }), + +/***/ "./rendering/initializeRenderCanvas.js": +/*!*********************************************!*\ + !*** ./rendering/initializeRenderCanvas.js ***! + \*********************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/** + * Sets size and clears canvas + * + * @param {Object} enabledElement Cornerstone Enabled Element + * @param {Object} image Image to be rendered + * @returns {void} + * @memberof rendering + */ +/* harmony default export */ __webpack_exports__["default"] = (function (enabledElement, image) { + var renderCanvas = enabledElement.renderingTools.renderCanvas; // Resize the canvas + + renderCanvas.width = image.width; + renderCanvas.height = image.height; + var canvasContext = renderCanvas.getContext('2d', { + desynchronized: true + }); // NOTE - we need to fill the render canvas with white pixels since we + // control the luminance using the alpha channel to improve rendering performance. + + canvasContext.fillStyle = 'white'; + canvasContext.fillRect(0, 0, renderCanvas.width, renderCanvas.height); + var renderCanvasData = canvasContext.getImageData(0, 0, image.width, image.height); + enabledElement.renderingTools.renderCanvasContext = canvasContext; + enabledElement.renderingTools.renderCanvasData = renderCanvasData; +}); + +/***/ }), + +/***/ "./rendering/lutMatches.js": +/*!*********************************!*\ + !*** ./rendering/lutMatches.js ***! + \*********************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/** + * Check if two lookup tables match + * + * @param {LUT} a A lookup table function + * @param {LUT} b Another lookup table function + * @return {boolean} Whether or not they match + * @memberof rendering + */ +/* harmony default export */ __webpack_exports__["default"] = (function (a, b) { + // If undefined, they are equal + if (!a && !b) { + return true; + } // If one is undefined, not equal + + + if (!a || !b) { + return false; + } // Check the unique ids + + + return a.id === b.id; +}); + +/***/ }), + +/***/ "./rendering/renderColorImage.js": +/*!***************************************!*\ + !*** ./rendering/renderColorImage.js ***! + \***************************************/ +/*! exports provided: renderColorImage, addColorLayer */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "renderColorImage", function() { return renderColorImage; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "addColorLayer", function() { return addColorLayer; }); +/* harmony import */ var _internal_now_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../internal/now.js */ "./internal/now.js"); +/* harmony import */ var _internal_getFillStyle_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../internal/getFillStyle.js */ "./internal/getFillStyle.js"); +/* harmony import */ var _internal_generateColorLut_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../internal/generateColorLut.js */ "./internal/generateColorLut.js"); +/* harmony import */ var _internal_storedColorPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../internal/storedColorPixelDataToCanvasImageData.js */ "./internal/storedColorPixelDataToCanvasImageData.js"); +/* harmony import */ var _internal_storedRGBAPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../internal/storedRGBAPixelDataToCanvasImageData.js */ "./internal/storedRGBAPixelDataToCanvasImageData.js"); +/* harmony import */ var _setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../setToPixelCoordinateSystem.js */ "./setToPixelCoordinateSystem.js"); +/* harmony import */ var _webgl_index_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../webgl/index.js */ "./webgl/index.js"); +/* harmony import */ var _doesImageNeedToBeRendered_js__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./doesImageNeedToBeRendered.js */ "./rendering/doesImageNeedToBeRendered.js"); +/* harmony import */ var _initializeRenderCanvas_js__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./initializeRenderCanvas.js */ "./rendering/initializeRenderCanvas.js"); +/* harmony import */ var _saveLastRendered_js__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./saveLastRendered.js */ "./rendering/saveLastRendered.js"); +/* harmony import */ var _internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ../internal/getDisplayedArea.js */ "./internal/getDisplayedArea.js"); + + + + + + + + + + + +/** + * Generates an appropriate Look Up Table to render the given image with the given window width and level (specified in the viewport) + * Uses an internal cache for performance + * + * @param {Object} image The image to be rendered + * @param {Object} viewport The viewport values used for rendering + * @returns {Uint8ClampedArray} Look Up Table array. + * @memberof rendering + */ + +function getLut(image, viewport) { + // If we have a cached lut and it has the right values, return it immediately + if (image.cachedLut !== undefined && image.cachedLut.windowCenter === viewport.voi.windowCenter && image.cachedLut.windowWidth === viewport.voi.windowWidth && image.cachedLut.invert === viewport.invert) { + return image.cachedLut.lutArray; + } // Lut is invalid or not present, regenerate it and cache it + + + Object(_internal_generateColorLut_js__WEBPACK_IMPORTED_MODULE_2__["default"])(image, viewport.voi.windowWidth, viewport.voi.windowCenter, viewport.invert); + image.cachedLut.windowWidth = viewport.voi.windowWidth; + image.cachedLut.windowCenter = viewport.voi.windowCenter; + image.cachedLut.invert = viewport.invert; + return image.cachedLut.lutArray; +} +/** + * Returns an appropriate canvas to render the Image. If the canvas available in the cache is appropriate + * it is returned, otherwise adjustments are made. It also sets the color transfer functions. + * + * @param {Object} enabledElement The cornerstone enabled element + * @param {Object} image The image to be rendered + * @param {Boolean} invalidated Is pixel data valid + * @returns {HTMLCanvasElement} An appropriate canvas for rendering the image + * @memberof rendering + */ + + +function getRenderCanvas(enabledElement, image, invalidated) { + var canvasWasColor = enabledElement.renderingTools.lastRenderedIsColor === true; + + if (!enabledElement.renderingTools.renderCanvas || !canvasWasColor) { + enabledElement.renderingTools.renderCanvas = document.createElement('canvas'); + } + + var renderCanvas = enabledElement.renderingTools.renderCanvas; // The ww/wc is identity and not inverted - get a canvas with the image rendered into it for + // Fast drawing + + if (enabledElement.viewport.voi.windowWidth === 255 && enabledElement.viewport.voi.windowCenter === 128 && enabledElement.viewport.invert === false && image.getCanvas && image.getCanvas()) { + return image.getCanvas(); + } // Apply the lut to the stored pixel data onto the render canvas + + + if (Object(_doesImageNeedToBeRendered_js__WEBPACK_IMPORTED_MODULE_7__["default"])(enabledElement, image) === false && invalidated !== true) { + return renderCanvas; + } // If our render canvas does not match the size of this image reset it + // NOTE: This might be inefficient if we are updating multiple images of different + // Sizes frequently. + + + if (renderCanvas.width !== image.width || renderCanvas.height !== image.height) { + Object(_initializeRenderCanvas_js__WEBPACK_IMPORTED_MODULE_8__["default"])(enabledElement, image); + } // Get the lut to use + + + var start = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + var colorLut = getLut(image, enabledElement.viewport); + image.stats = image.stats || {}; + image.stats.lastLutGenerateTime = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])() - start; + var renderCanvasData = enabledElement.renderingTools.renderCanvasData; + var renderCanvasContext = enabledElement.renderingTools.renderCanvasContext; // The color image voi/invert has been modified - apply the lut to the underlying + // Pixel data and put it into the renderCanvas + + if (image.rgba) { + Object(_internal_storedRGBAPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_4__["default"])(image, colorLut, renderCanvasData.data); + } else { + Object(_internal_storedColorPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_3__["default"])(image, colorLut, renderCanvasData.data); + } + + start = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])(); + renderCanvasContext.putImageData(renderCanvasData, 0, 0); + image.stats.lastPutImageDataTime = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_0__["default"])() - start; + return renderCanvas; +} +/** + * API function to render a color image to an enabled element + * + * @param {EnabledElement} enabledElement The Cornerstone Enabled Element to redraw + * @param {Boolean} invalidated - true if pixel data has been invalidated and cached rendering should not be used + * @returns {void} + * @memberof rendering + */ + + +function renderColorImage(enabledElement, invalidated) { + if (enabledElement === undefined) { + throw new Error('renderColorImage: enabledElement parameter must not be undefined'); + } + + var image = enabledElement.image; + + if (image === undefined) { + throw new Error('renderColorImage: image must be loaded before it can be drawn'); + } // Get the canvas context and reset the transform + + + var context = enabledElement.canvas.getContext('2d', { + desynchronized: true + }); + context.setTransform(1, 0, 0, 1, 0, 0); // Clear the canvas + + context.fillStyle = Object(_internal_getFillStyle_js__WEBPACK_IMPORTED_MODULE_1__["default"])(enabledElement); + context.fillRect(0, 0, enabledElement.canvas.width, enabledElement.canvas.height); // Turn off image smooth/interpolation if pixelReplication is set in the viewport + + context.imageSmoothingEnabled = !enabledElement.viewport.pixelReplication; + context.mozImageSmoothingEnabled = context.imageSmoothingEnabled; // Save the canvas context state and apply the viewport properties + + Object(_setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_5__["default"])(enabledElement, context); + var renderCanvas; + + if (enabledElement.options && enabledElement.options.renderer && enabledElement.options.renderer.toLowerCase() === 'webgl') { + // If this enabled element has the option set for WebGL, we should + // User it as our renderer. + renderCanvas = _webgl_index_js__WEBPACK_IMPORTED_MODULE_6__["default"].renderer.render(enabledElement); + } else { + // If no options are set we will retrieve the renderCanvas through the + // Normal Canvas rendering path + renderCanvas = getRenderCanvas(enabledElement, image, invalidated); + } + + var imageDisplayedArea = Object(_internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_10__["default"])(enabledElement.image, enabledElement.viewport); + var sx = imageDisplayedArea.tlhc.x - 1; + var sy = imageDisplayedArea.tlhc.y - 1; + var width = imageDisplayedArea.brhc.x - sx; + var height = imageDisplayedArea.brhc.y - sy; + context.drawImage(renderCanvas, sx, sy, width, height, sx, sy, width, height); + enabledElement.renderingTools = Object(_saveLastRendered_js__WEBPACK_IMPORTED_MODULE_9__["default"])(enabledElement); +} +function addColorLayer(layer, invalidated) { + if (layer === undefined) { + throw new Error('addColorLayer: layer parameter must not be undefined'); + } + + var image = layer.image; + + if (image === undefined) { + throw new Error('addColorLayer: image must be loaded before it can be drawn'); + } // All multi-layer images should include the alpha value + + + image.rgba = true; + layer.canvas = getRenderCanvas(layer, image, invalidated); + var context = layer.canvas.getContext('2d', { + desynchronized: true + }); // Turn off image smooth/interpolation if pixelReplication is set in the viewport + + context.imageSmoothingEnabled = !layer.viewport.pixelReplication; + context.mozImageSmoothingEnabled = context.imageSmoothingEnabled; + layer.renderingTools = Object(_saveLastRendered_js__WEBPACK_IMPORTED_MODULE_9__["default"])(layer); +} + +/***/ }), + +/***/ "./rendering/renderGrayscaleImage.js": +/*!*******************************************!*\ + !*** ./rendering/renderGrayscaleImage.js ***! + \*******************************************/ +/*! exports provided: renderGrayscaleImage, addGrayscaleLayer */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "renderGrayscaleImage", function() { return renderGrayscaleImage; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "addGrayscaleLayer", function() { return addGrayscaleLayer; }); +/* harmony import */ var _internal_getFillStyle_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../internal/getFillStyle.js */ "./internal/getFillStyle.js"); +/* harmony import */ var _internal_storedPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../internal/storedPixelDataToCanvasImageData.js */ "./internal/storedPixelDataToCanvasImageData.js"); +/* harmony import */ var _internal_storedPixelDataToCanvasImageDataRGBA_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../internal/storedPixelDataToCanvasImageDataRGBA.js */ "./internal/storedPixelDataToCanvasImageDataRGBA.js"); +/* harmony import */ var _setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../setToPixelCoordinateSystem.js */ "./setToPixelCoordinateSystem.js"); +/* harmony import */ var _internal_now_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../internal/now.js */ "./internal/now.js"); +/* harmony import */ var _webgl_index_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../webgl/index.js */ "./webgl/index.js"); +/* harmony import */ var _getLut_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./getLut.js */ "./rendering/getLut.js"); +/* harmony import */ var _doesImageNeedToBeRendered_js__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./doesImageNeedToBeRendered.js */ "./rendering/doesImageNeedToBeRendered.js"); +/* harmony import */ var _initializeRenderCanvas_js__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./initializeRenderCanvas.js */ "./rendering/initializeRenderCanvas.js"); +/* harmony import */ var _saveLastRendered_js__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./saveLastRendered.js */ "./rendering/saveLastRendered.js"); +/* harmony import */ var _internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ../internal/getDisplayedArea.js */ "./internal/getDisplayedArea.js"); + + + + + + + + + + + +/** + * Returns an appropriate canvas to render the Image. If the canvas available in the cache is appropriate + * it is returned, otherwise adjustments are made. It also sets the color transfer functions. + * + * @param {Object} enabledElement The cornerstone enabled element + * @param {Object} image The image to be rendered + * @param {Boolean} invalidated Is pixel data valid + * @param {Boolean} [useAlphaChannel = true] Will an alpha channel be used + * @returns {HTMLCanvasElement} An appropriate canvas for rendering the image + * @memberof rendering + */ + +function getRenderCanvas(enabledElement, image, invalidated) { + var useAlphaChannel = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : true; + var canvasWasColor = enabledElement.renderingTools.lastRenderedIsColor === true; + + if (!enabledElement.renderingTools.renderCanvas || canvasWasColor) { + enabledElement.renderingTools.renderCanvas = document.createElement('canvas'); + Object(_initializeRenderCanvas_js__WEBPACK_IMPORTED_MODULE_8__["default"])(enabledElement, image); + } + + var renderCanvas = enabledElement.renderingTools.renderCanvas; + + if (Object(_doesImageNeedToBeRendered_js__WEBPACK_IMPORTED_MODULE_7__["default"])(enabledElement, image) === false && invalidated !== true) { + return renderCanvas; + } // If our render canvas does not match the size of this image reset it + // NOTE: This might be inefficient if we are updating multiple images of different + // Sizes frequently. + + + if (renderCanvas.width !== image.width || renderCanvas.height !== image.height) { + Object(_initializeRenderCanvas_js__WEBPACK_IMPORTED_MODULE_8__["default"])(enabledElement, image); + } // Get the lut to use + + + var start = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_4__["default"])(); + var lut = Object(_getLut_js__WEBPACK_IMPORTED_MODULE_6__["default"])(image, enabledElement.viewport, invalidated); + image.stats = image.stats || {}; + image.stats.lastLutGenerateTime = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_4__["default"])() - start; + var renderCanvasData = enabledElement.renderingTools.renderCanvasData; + var renderCanvasContext = enabledElement.renderingTools.renderCanvasContext; // Gray scale image - apply the lut and put the resulting image onto the render canvas + + if (useAlphaChannel) { + Object(_internal_storedPixelDataToCanvasImageData_js__WEBPACK_IMPORTED_MODULE_1__["default"])(image, lut, renderCanvasData.data); + } else { + Object(_internal_storedPixelDataToCanvasImageDataRGBA_js__WEBPACK_IMPORTED_MODULE_2__["default"])(image, lut, renderCanvasData.data); + } + + start = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_4__["default"])(); + renderCanvasContext.putImageData(renderCanvasData, 0, 0); + image.stats.lastPutImageDataTime = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_4__["default"])() - start; + return renderCanvas; +} +/** + * API function to draw a grayscale image to a given enabledElement + * + * @param {EnabledElement} enabledElement The Cornerstone Enabled Element to redraw + * @param {Boolean} invalidated - true if pixel data has been invalidated and cached rendering should not be used + * @returns {void} + * @memberof rendering + */ + + +function renderGrayscaleImage(enabledElement, invalidated) { + if (enabledElement === undefined) { + throw new Error('drawImage: enabledElement parameter must not be undefined'); + } + + var image = enabledElement.image; + + if (image === undefined) { + throw new Error('drawImage: image must be loaded before it can be drawn'); + } // Get the canvas context and reset the transform + + + var context = enabledElement.canvas.getContext('2d', { + desynchronized: true + }); + context.setTransform(1, 0, 0, 1, 0, 0); // Clear the canvas + + context.fillStyle = Object(_internal_getFillStyle_js__WEBPACK_IMPORTED_MODULE_0__["default"])(enabledElement); + context.fillRect(0, 0, enabledElement.canvas.width, enabledElement.canvas.height); // Turn off image smooth/interpolation if pixelReplication is set in the viewport + + context.imageSmoothingEnabled = !enabledElement.viewport.pixelReplication; + context.mozImageSmoothingEnabled = context.imageSmoothingEnabled; // Save the canvas context state and apply the viewport properties + + Object(_setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_3__["default"])(enabledElement, context); + var renderCanvas; + + if (enabledElement.options && enabledElement.options.renderer && enabledElement.options.renderer.toLowerCase() === 'webgl') { + // If this enabled element has the option set for WebGL, we should + // User it as our renderer. + renderCanvas = _webgl_index_js__WEBPACK_IMPORTED_MODULE_5__["default"].renderer.render(enabledElement); + } else { + // If no options are set we will retrieve the renderCanvas through the + // Normal Canvas rendering path + renderCanvas = getRenderCanvas(enabledElement, image, invalidated); + } + + var imageDisplayedArea = Object(_internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_10__["default"])(enabledElement.image, enabledElement.viewport); + var sx = imageDisplayedArea.tlhc.x - 1; + var sy = imageDisplayedArea.tlhc.y - 1; + var width = imageDisplayedArea.brhc.x - sx; + var height = imageDisplayedArea.brhc.y - sy; + context.drawImage(renderCanvas, sx, sy, width, height, sx, sy, width, height); + enabledElement.renderingTools = Object(_saveLastRendered_js__WEBPACK_IMPORTED_MODULE_9__["default"])(enabledElement); +} +/** + * API function to draw a grayscale image to a given layer + * + * @param {EnabledElementLayer} layer The layer that the image will be added to + * @param {Boolean} invalidated - true if pixel data has been invalidated and cached rendering should not be used + * @param {Boolean} [useAlphaChannel] - Whether or not to render the grayscale image using only the alpha channel. + This does not work if this layer is not the first layer in the enabledElement. + * @returns {void} + */ + +function addGrayscaleLayer(layer, invalidated) { + var useAlphaChannel = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false; + + if (layer === undefined) { + throw new Error('addGrayscaleLayer: layer parameter must not be undefined'); + } + + var image = layer.image; + + if (image === undefined) { + throw new Error('addGrayscaleLayer: image must be loaded before it can be drawn'); + } + + layer.canvas = getRenderCanvas(layer, image, invalidated, useAlphaChannel); + var context = layer.canvas.getContext('2d', { + desynchronized: true + }); // Turn off image smooth/interpolation if pixelReplication is set in the viewport + + context.imageSmoothingEnabled = !layer.viewport.pixelReplication; + context.mozImageSmoothingEnabled = context.imageSmoothingEnabled; + layer.renderingTools = Object(_saveLastRendered_js__WEBPACK_IMPORTED_MODULE_9__["default"])(layer); +} + +/***/ }), + +/***/ "./rendering/renderLabelMapImage.js": +/*!******************************************!*\ + !*** ./rendering/renderLabelMapImage.js ***! + \******************************************/ +/*! exports provided: renderLabelMapImage, addLabelMapLayer */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "renderLabelMapImage", function() { return renderLabelMapImage; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "addLabelMapLayer", function() { return addLabelMapLayer; }); +/* harmony import */ var _setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../setToPixelCoordinateSystem.js */ "./setToPixelCoordinateSystem.js"); +/* harmony import */ var _internal_now_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../internal/now.js */ "./internal/now.js"); +/* harmony import */ var _internal_getFillStyle_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../internal/getFillStyle.js */ "./internal/getFillStyle.js"); +/* harmony import */ var _initializeRenderCanvas_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./initializeRenderCanvas.js */ "./rendering/initializeRenderCanvas.js"); +/* harmony import */ var _saveLastRendered_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./saveLastRendered.js */ "./rendering/saveLastRendered.js"); +/* harmony import */ var _doesImageNeedToBeRendered_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./doesImageNeedToBeRendered.js */ "./rendering/doesImageNeedToBeRendered.js"); +/* harmony import */ var _internal_storedPixelDataToCanvasImageDataColorLUT_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../internal/storedPixelDataToCanvasImageDataColorLUT.js */ "./internal/storedPixelDataToCanvasImageDataColorLUT.js"); +/* harmony import */ var _colors_index_js__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../colors/index.js */ "./colors/index.js"); +/* harmony import */ var _internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../internal/getDisplayedArea.js */ "./internal/getDisplayedArea.js"); + + + + + + + + + +/** + * Returns an appropriate canvas to render the Image. If the canvas available in the cache is appropriate + * it is returned, otherwise adjustments are made. It also sets the color transfer functions. + * + * @param {Object} enabledElement The cornerstone enabled element + * @param {Object} image The image to be rendered + * @param {Boolean} invalidated Is pixel data valid + * @returns {HTMLCanvasElement} An appropriate canvas for rendering the image + * @memberof rendering + */ + +function getRenderCanvas(enabledElement, image, invalidated) { + if (!enabledElement.renderingTools.renderCanvas) { + enabledElement.renderingTools.renderCanvas = document.createElement('canvas'); + } + + var renderCanvas = enabledElement.renderingTools.renderCanvas; + var colormap = enabledElement.viewport.colormap || enabledElement.options.colormap; + + if (enabledElement.options.colormap) { + console.warn('enabledElement.options.colormap is deprecated. Use enabledElement.viewport.colormap instead'); + } + + if (colormap && typeof colormap === 'string') { + colormap = _colors_index_js__WEBPACK_IMPORTED_MODULE_7__["default"].getColormap(colormap); + } + + if (!colormap) { + throw new Error('renderLabelMapImage: colormap not found.'); + } + + var colormapId = colormap.getId(); + + if (Object(_doesImageNeedToBeRendered_js__WEBPACK_IMPORTED_MODULE_5__["default"])(enabledElement, image) === false && invalidated !== true && enabledElement.renderingTools.colormapId === colormapId) { + return renderCanvas; + } // If our render canvas does not match the size of this image reset it + // NOTE: This might be inefficient if we are updating multiple images of different + // Sizes frequently. + + + if (renderCanvas.width !== image.width || renderCanvas.height !== image.height) { + Object(_initializeRenderCanvas_js__WEBPACK_IMPORTED_MODULE_3__["default"])(enabledElement, image); + } // Get the lut to use + + + var start = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])(); + + if (!enabledElement.renderingTools.colorLut || invalidated || enabledElement.renderingTools.colormapId !== colormapId) { + enabledElement.renderingTools.colorLut = colormap.createLookupTable(); + enabledElement.renderingTools.colormapId = colormapId; + } + + image.stats = image.stats || {}; + image.stats.lastLutGenerateTime = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])() - start; + var colorLut = enabledElement.renderingTools.colorLut; + var renderCanvasData = enabledElement.renderingTools.renderCanvasData; + var renderCanvasContext = enabledElement.renderingTools.renderCanvasContext; + Object(_internal_storedPixelDataToCanvasImageDataColorLUT_js__WEBPACK_IMPORTED_MODULE_6__["default"])(image, colorLut, renderCanvasData.data); + start = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])(); + renderCanvasContext.putImageData(renderCanvasData, 0, 0); + image.stats.lastPutImageDataTime = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])() - start; + return renderCanvas; +} +/** + * API function to draw a label map image to a given enabledElement + * + * @param {EnabledElement} enabledElement The Cornerstone Enabled Element to redraw + * @param {Boolean} invalidated - true if pixel data has been invalidated and cached rendering should not be used + * @returns {void} + * @memberof rendering + */ + + +function renderLabelMapImage(enabledElement, invalidated) { + if (enabledElement === undefined) { + throw new Error('renderLabelMapImage: enabledElement parameter must not be undefined'); + } + + var image = enabledElement.image; + + if (image === undefined) { + throw new Error('renderLabelMapImage: image must be loaded before it can be drawn'); + } // Get the canvas context and reset the transform + + + var context = enabledElement.canvas.getContext('2d', { + desynchronized: true + }); + context.setTransform(1, 0, 0, 1, 0, 0); // Clear the canvas + + context.fillStyle = Object(_internal_getFillStyle_js__WEBPACK_IMPORTED_MODULE_2__["default"])(enabledElement); + context.fillRect(0, 0, enabledElement.canvas.width, enabledElement.canvas.height); // Turn off image smooth/interpolation if pixelReplication is set in the viewport + + context.imageSmoothingEnabled = !enabledElement.viewport.pixelReplication; + context.mozImageSmoothingEnabled = context.imageSmoothingEnabled; // Save the canvas context state and apply the viewport properties + + Object(_setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_0__["default"])(enabledElement, context); // If no options are set we will retrieve the renderCanvas through the + // Normal Canvas rendering path + // TODO: Add WebGL support for label map pipeline + + var renderCanvas = getRenderCanvas(enabledElement, image, invalidated); + var imageDisplayedArea = Object(_internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_8__["default"])(enabledElement.image, enabledElement.viewport); + var sx = imageDisplayedArea.tlhc.x - 1; + var sy = imageDisplayedArea.tlhc.y - 1; + var width = imageDisplayedArea.brhc.x - sx; + var height = imageDisplayedArea.brhc.y - sy; + context.drawImage(renderCanvas, sx, sy, width, height, sx, sy, width, height); + enabledElement.renderingTools = Object(_saveLastRendered_js__WEBPACK_IMPORTED_MODULE_4__["default"])(enabledElement); +} +/** + * API function to draw a pseudo-color image to a given layer + * + * @param {EnabledElementLayer} layer The layer that the image will be added to + * @param {Boolean} invalidated - true if pixel data has been invalidated and cached rendering should not be used + * @returns {void} + */ + +function addLabelMapLayer(layer, invalidated) { + if (layer === undefined) { + throw new Error('addLabelMapLayer: layer parameter must not be undefined'); + } + + var image = layer.image; + + if (image === undefined) { + throw new Error('addLabelMapLayer: image must be loaded before it can be drawn'); + } + + layer.canvas = getRenderCanvas(layer, image, invalidated); + var context = layer.canvas.getContext('2d', { + desynchronized: true + }); // Turn off image smooth/interpolation if pixelReplication is set in the viewport + + context.imageSmoothingEnabled = !layer.viewport.pixelReplication; + context.mozImageSmoothingEnabled = context.imageSmoothingEnabled; + layer.renderingTools = Object(_saveLastRendered_js__WEBPACK_IMPORTED_MODULE_4__["default"])(layer); +} + +/***/ }), + +/***/ "./rendering/renderPseudoColorImage.js": +/*!*********************************************!*\ + !*** ./rendering/renderPseudoColorImage.js ***! + \*********************************************/ +/*! exports provided: renderPseudoColorImage, addPseudoColorLayer */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "renderPseudoColorImage", function() { return renderPseudoColorImage; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "addPseudoColorLayer", function() { return addPseudoColorLayer; }); +/* harmony import */ var _setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../setToPixelCoordinateSystem.js */ "./setToPixelCoordinateSystem.js"); +/* harmony import */ var _internal_now_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../internal/now.js */ "./internal/now.js"); +/* harmony import */ var _internal_getFillStyle_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../internal/getFillStyle.js */ "./internal/getFillStyle.js"); +/* harmony import */ var _initializeRenderCanvas_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./initializeRenderCanvas.js */ "./rendering/initializeRenderCanvas.js"); +/* harmony import */ var _getLut_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./getLut.js */ "./rendering/getLut.js"); +/* harmony import */ var _saveLastRendered_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./saveLastRendered.js */ "./rendering/saveLastRendered.js"); +/* harmony import */ var _doesImageNeedToBeRendered_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./doesImageNeedToBeRendered.js */ "./rendering/doesImageNeedToBeRendered.js"); +/* harmony import */ var _internal_storedPixelDataToCanvasImageDataPseudocolorLUT_js__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../internal/storedPixelDataToCanvasImageDataPseudocolorLUT.js */ "./internal/storedPixelDataToCanvasImageDataPseudocolorLUT.js"); +/* harmony import */ var _colors_index_js__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../colors/index.js */ "./colors/index.js"); +/* harmony import */ var _internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ../internal/getDisplayedArea.js */ "./internal/getDisplayedArea.js"); + + + + + + + + + + +/** + * Returns an appropriate canvas to render the Image. If the canvas available in the cache is appropriate + * it is returned, otherwise adjustments are made. It also sets the color transfer functions. + * + * @param {Object} enabledElement The cornerstone enabled element + * @param {Object} image The image to be rendered + * @param {Boolean} invalidated Is pixel data valid + * @returns {HTMLCanvasElement} An appropriate canvas for rendering the image + * @memberof rendering + */ + +function getRenderCanvas(enabledElement, image, invalidated) { + if (!enabledElement.renderingTools.renderCanvas) { + enabledElement.renderingTools.renderCanvas = document.createElement('canvas'); + } + + var renderCanvas = enabledElement.renderingTools.renderCanvas; + var colormap = enabledElement.viewport.colormap || enabledElement.options.colormap; + + if (enabledElement.options && enabledElement.options.colormap) { + console.warn('enabledElement.options.colormap is deprecated. Use enabledElement.viewport.colormap instead'); + } + + if (colormap && typeof colormap === 'string') { + colormap = _colors_index_js__WEBPACK_IMPORTED_MODULE_8__["default"].getColormap(colormap); + } + + if (!colormap) { + throw new Error('renderPseudoColorImage: colormap not found.'); + } + + var colormapId = colormap.getId(); + + if (Object(_doesImageNeedToBeRendered_js__WEBPACK_IMPORTED_MODULE_6__["default"])(enabledElement, image) === false && invalidated !== true && enabledElement.renderingTools.colormapId === colormapId) { + return renderCanvas; + } // If our render canvas does not match the size of this image reset it + // NOTE: This might be inefficient if we are updating multiple images of different + // Sizes frequently. + + + if (renderCanvas.width !== image.width || renderCanvas.height !== image.height) { + Object(_initializeRenderCanvas_js__WEBPACK_IMPORTED_MODULE_3__["default"])(enabledElement, image); + } // Get the lut to use + + + var start = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])(); + + if (!enabledElement.renderingTools.colorLut || invalidated || enabledElement.renderingTools.colormapId !== colormapId) { + colormap.setNumberOfColors(256); + enabledElement.renderingTools.colorLut = colormap.createLookupTable(); + enabledElement.renderingTools.colormapId = colormapId; + } + + var lut = Object(_getLut_js__WEBPACK_IMPORTED_MODULE_4__["default"])(image, enabledElement.viewport, invalidated); + image.stats = image.stats || {}; + image.stats.lastLutGenerateTime = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])() - start; + var colorLut = enabledElement.renderingTools.colorLut; + var renderCanvasData = enabledElement.renderingTools.renderCanvasData; + var renderCanvasContext = enabledElement.renderingTools.renderCanvasContext; + Object(_internal_storedPixelDataToCanvasImageDataPseudocolorLUT_js__WEBPACK_IMPORTED_MODULE_7__["default"])(image, lut, colorLut, renderCanvasData.data); + start = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])(); + renderCanvasContext.putImageData(renderCanvasData, 0, 0); + image.stats.lastPutImageDataTime = Object(_internal_now_js__WEBPACK_IMPORTED_MODULE_1__["default"])() - start; + return renderCanvas; +} +/** + * API function to draw a pseudo-color image to a given enabledElement + * + * @param {EnabledElement} enabledElement The Cornerstone Enabled Element to redraw + * @param {Boolean} invalidated - true if pixel data has been invalidated and cached rendering should not be used + * @returns {void} + * @memberof rendering + */ + + +function renderPseudoColorImage(enabledElement, invalidated) { + if (enabledElement === undefined) { + throw new Error('drawImage: enabledElement parameter must not be undefined'); + } + + var image = enabledElement.image; + + if (image === undefined) { + throw new Error('drawImage: image must be loaded before it can be drawn'); + } // Get the canvas context and reset the transform + + + var context = enabledElement.canvas.getContext('2d', { + desynchronized: true + }); + context.setTransform(1, 0, 0, 1, 0, 0); // Clear the canvas + + context.fillStyle = Object(_internal_getFillStyle_js__WEBPACK_IMPORTED_MODULE_2__["default"])(enabledElement); + context.fillRect(0, 0, enabledElement.canvas.width, enabledElement.canvas.height); // Turn off image smooth/interpolation if pixelReplication is set in the viewport + + context.imageSmoothingEnabled = !enabledElement.viewport.pixelReplication; + context.mozImageSmoothingEnabled = context.imageSmoothingEnabled; // Save the canvas context state and apply the viewport properties + + Object(_setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_0__["default"])(enabledElement, context); // If no options are set we will retrieve the renderCanvas through the + // Normal Canvas rendering path + // TODO: Add WebGL support for pseudocolor pipeline + + var renderCanvas = getRenderCanvas(enabledElement, image, invalidated); + var imageDisplayedArea = Object(_internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_9__["default"])(enabledElement.image, enabledElement.viewport); + var sx = imageDisplayedArea.tlhc.x - 1; + var sy = imageDisplayedArea.tlhc.y - 1; + var width = imageDisplayedArea.brhc.x - sx; + var height = imageDisplayedArea.brhc.y - sy; + context.drawImage(renderCanvas, sx, sy, width, height, sx, sy, width, height); + enabledElement.renderingTools = Object(_saveLastRendered_js__WEBPACK_IMPORTED_MODULE_5__["default"])(enabledElement); +} +/** + * API function to draw a pseudo-color image to a given layer + * + * @param {EnabledElementLayer} layer The layer that the image will be added to + * @param {Boolean} invalidated - true if pixel data has been invalidated and cached rendering should not be used + * @returns {void} + */ + +function addPseudoColorLayer(layer, invalidated) { + if (layer === undefined) { + throw new Error('addPseudoColorLayer: layer parameter must not be undefined'); + } + + var image = layer.image; + + if (image === undefined) { + throw new Error('addPseudoColorLayer: image must be loaded before it can be drawn'); + } + + layer.canvas = getRenderCanvas(layer, image, invalidated); + var context = layer.canvas.getContext('2d', { + desynchronized: true + }); // Turn off image smooth/interpolation if pixelReplication is set in the viewport + + context.imageSmoothingEnabled = !layer.viewport.pixelReplication; + context.mozImageSmoothingEnabled = context.imageSmoothingEnabled; + layer.renderingTools = Object(_saveLastRendered_js__WEBPACK_IMPORTED_MODULE_5__["default"])(layer); +} + +/***/ }), + +/***/ "./rendering/renderToCanvas.js": +/*!*************************************!*\ + !*** ./rendering/renderToCanvas.js ***! + \*************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _triggerEvent_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../triggerEvent.js */ "./triggerEvent.js"); +/* harmony import */ var _events_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../events.js */ "./events.js"); +/* harmony import */ var _internal_drawImageSync_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../internal/drawImageSync.js */ "./internal/drawImageSync.js"); +/* harmony import */ var _internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../internal/getDefaultViewport.js */ "./internal/getDefaultViewport.js"); +/* harmony import */ var _internal_tryEnableWebgl_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../internal/tryEnableWebgl.js */ "./internal/tryEnableWebgl.js"); + + + + + +/** + * @typedef {Object} EnabledElementStub + * @property {HTMLElement} element The enabled element + * @property {HTMLCanvasElement} canvas The current canvas + * @property {Object} image Currently displayed image + * @property {Boolean} invalid Whether or not the image pixel data has been changed + * @property {Boolean} needsRedraw A flag for triggering a redraw of the canvas without re-retrieving the pixel data, since it remains valid + * @property {Object} options Layer drawing options + * @property {Object[]} layers Layers added to the EnabledElement + * @property {Object} data + * @property {Object} renderingTools + * @property {Object} viewport The current viewport + * @memberof rendering + */ + +/** + * creates a dummy enabled element + * + * @param {HTMLCanvasElement} canvas the canvas that will be assigned to the enabled element. + * @param {any} image An Image loaded by a Cornerstone Image Loader + * @param { any } options Options for rendering the image (e.g.enable webgl by {renderer: 'webgl' }) + * @param { any } viewport A set of Cornerstone viewport parameters + * @returns {EnabledElementStub} a dummy enabled element + * @memberof rendering + */ + +function createEnabledElementStub(canvas, image, options, viewport) { + return { + element: canvas, + canvas: canvas, + image: image, + invalid: true, + // True if image needs to be drawn, false if not + needsRedraw: true, + options: options, + layers: [], + data: {}, + renderingTools: {}, + viewport: viewport + }; +} +/** + * Render the image to the provided canvas immediately. + * @param {any} canvas The HTML canvas where the image will be rendered. + * @param {any} image An Image loaded by a Cornerstone Image Loader + * @param {any} [viewport = null] A set of Cornerstone viewport parameters + * @param {any} [options = null] Options for rendering the image (e.g. enable webgl by {renderer: 'webgl'}) + * @returns {void} + * @memberof rendering + */ + + +/* harmony default export */ __webpack_exports__["default"] = (function (canvas, image) { + var viewport = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null; + var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null; + + if (canvas === undefined) { + throw new Error('renderToCanvas: parameter canvas cannot be undefined'); + } // If this enabled element has the option set for WebGL, we should + // Check if this device actually supports it + + + if (options && options.renderer && options.renderer.toLowerCase() === 'webgl') { + Object(_internal_tryEnableWebgl_js__WEBPACK_IMPORTED_MODULE_4__["default"])(options); + } + + var defaultViewport = Object(_internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_3__["default"])(canvas, image); + + if (viewport) { + Object.assign(defaultViewport, viewport); + } + + var enabledElementStub = createEnabledElementStub(canvas, image, options, defaultViewport); + var eventDetails = { + enabledElement: enabledElementStub, + timestamp: Date.now() + }; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_0__["default"])(enabledElementStub.element, _events_js__WEBPACK_IMPORTED_MODULE_1__["default"].PRE_RENDER, eventDetails); + Object(_internal_drawImageSync_js__WEBPACK_IMPORTED_MODULE_2__["default"])(enabledElementStub, enabledElementStub.invalid); +}); + +/***/ }), + +/***/ "./rendering/renderWebImage.js": +/*!*************************************!*\ + !*** ./rendering/renderWebImage.js ***! + \*************************************/ +/*! exports provided: renderWebImage */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "renderWebImage", function() { return renderWebImage; }); +/* harmony import */ var _setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../setToPixelCoordinateSystem.js */ "./setToPixelCoordinateSystem.js"); +/* harmony import */ var _renderColorImage_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./renderColorImage.js */ "./rendering/renderColorImage.js"); +/* harmony import */ var _internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../internal/getDisplayedArea.js */ "./internal/getDisplayedArea.js"); + + + +/** + * API function to draw a standard web image (PNG, JPG) to an enabledImage + * + * @param {EnabledElement} enabledElement The Cornerstone Enabled Element to redraw + * @param {Boolean} invalidated - true if pixel data has been invalidated and cached rendering should not be used + * @returns {void} + * @memberof rendering + */ + +function renderWebImage(enabledElement, invalidated) { + if (enabledElement === undefined) { + throw new Error('renderWebImage: enabledElement parameter must not be undefined'); + } + + var image = enabledElement.image; + + if (image === undefined) { + throw new Error('renderWebImage: image must be loaded before it can be drawn'); + } // If the viewport ww/wc and invert all match the initial state of the image, we can draw the image + // Directly. If any of those are changed, we call renderColorImage() to apply the lut + + + if (enabledElement.viewport.voi.windowWidth === enabledElement.image.windowWidth && enabledElement.viewport.voi.windowCenter === enabledElement.image.windowCenter && enabledElement.viewport.invert === false) { + // Get the canvas context and reset the transform + var context = enabledElement.canvas.getContext('2d', { + desynchronized: true + }); + context.setTransform(1, 0, 0, 1, 0, 0); // Clear the canvas + + context.fillStyle = 'black'; + context.fillRect(0, 0, enabledElement.canvas.width, enabledElement.canvas.height); // Turn off image smooth/interpolation if pixelReplication is set in the viewport + + context.imageSmoothingEnabled = !enabledElement.viewport.pixelReplication; + context.mozImageSmoothingEnabled = context.imageSmoothingEnabled; // Save the canvas context state and apply the viewport properties + + Object(_setToPixelCoordinateSystem_js__WEBPACK_IMPORTED_MODULE_0__["default"])(enabledElement, context); + var imageDisplayedArea = Object(_internal_getDisplayedArea_js__WEBPACK_IMPORTED_MODULE_2__["default"])(enabledElement.image, enabledElement.viewport); + var sx = imageDisplayedArea.tlhc.x - 1; + var sy = imageDisplayedArea.tlhc.y - 1; + var width = imageDisplayedArea.brhc.x - sx; + var height = imageDisplayedArea.brhc.y - sy; + context.drawImage(image.getImage(), sx, sy, width, height, sx, sy, width, height); + } else { + Object(_renderColorImage_js__WEBPACK_IMPORTED_MODULE_1__["renderColorImage"])(enabledElement, invalidated); + } +} + +/***/ }), + +/***/ "./rendering/saveLastRendered.js": +/*!***************************************!*\ + !*** ./rendering/saveLastRendered.js ***! + \***************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/** + * Saves the parameters of the last render into renderingTools, used later to decide if data can be reused. + * + * @param {Object} enabledElement Cornerstone EnabledElement + * @returns {Object} enabledElement.renderingTools + * @memberof rendering + */ +/* harmony default export */ __webpack_exports__["default"] = (function (enabledElement) { + var imageId = enabledElement.image.imageId; + var viewport = enabledElement.viewport; + var isColor = enabledElement.image.color; + enabledElement.renderingTools.lastRenderedImageId = imageId; + enabledElement.renderingTools.lastRenderedIsColor = isColor; + enabledElement.renderingTools.lastRenderedViewport = { + windowCenter: viewport.voi.windowCenter, + windowWidth: viewport.voi.windowWidth, + invert: viewport.invert, + rotation: viewport.rotation, + hflip: viewport.hflip, + vflip: viewport.vflip, + modalityLUT: viewport.modalityLUT, + voiLUT: viewport.voiLUT, + colormap: viewport.colormap + }; + return enabledElement.renderingTools; +}); + +/***/ }), + +/***/ "./requestPool/RequestPoolManager.ts": +/*!*******************************************!*\ + !*** ./requestPool/RequestPoolManager.ts ***! + \*******************************************/ +/*! exports provided: RequestPoolManager */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "RequestPoolManager", function() { return RequestPoolManager; }); +function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; } + +function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); } + +function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; } + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } + +var RequestPoolManager = /*#__PURE__*/function () { + // priority is fixed for interaction and thumbnail to be 0, however, + // the priority of prefetch can be configured and it can have priorities other + // than 0 (highest priority) + // TODO: Some of this stuff shouldn't be public but it's easier right now + function RequestPoolManager() { + _classCallCheck(this, RequestPoolManager); + + _defineProperty(this, "requestPool", void 0); + + _defineProperty(this, "awake", void 0); + + _defineProperty(this, "numRequests", void 0); + + _defineProperty(this, "maxNumRequests", void 0); + + _defineProperty(this, "grabDelay", void 0); + + _defineProperty(this, "timeoutHandle", void 0); + + this.requestPool = { + interaction: { + 0: [] + }, + thumbnail: { + 0: [] + }, + prefetch: { + 0: [] + } + }; + this.awake = false; + this.grabDelay = 5; + this.numRequests = { + interaction: 0, + thumbnail: 0, + prefetch: 0 + }; + this.maxNumRequests = { + interaction: 6, + thumbnail: 6, + prefetch: 5 + }; + } + + _createClass(RequestPoolManager, [{ + key: "destroy", + value: function destroy() { + if (this.timeoutHandle) { + window.clearTimeout(this.timeoutHandle); + } + } + /** + * Adds the requests to the pool of requests. + * + * @param requestFn - A function that returns a promise which resolves in the image + * @param type - Priority category, it can be either of interaction, prefetch, + * or thumbnail. + * @param additionalDetails - Additional details that requests can contain. + * For instance the volumeUID for the volume requests + * @param priority - Priority number for each category of requests. Its default + * value is priority 0. The lower the priority number, the higher the priority number + * + * @returns void + * + */ + + }, { + key: "addRequest", + value: function addRequest(requestFn, type, additionalDetails) { + var priority = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0; + var addToBeginning = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false; + // Describe the request + var requestDetails = { + requestFn: requestFn, + type: type, + additionalDetails: additionalDetails + }; // Check if the priority group exists on the request type + + if (this.requestPool[type][priority] === undefined) { + this.requestPool[type][priority] = []; + } // Adding the request to the correct priority group of the request type + + + if (addToBeginning) { + // Add it to the beginning of the stack + this.requestPool[type][priority].unshift(requestDetails); + } else { + // Add it to the end of the stack + this.requestPool[type][priority].push(requestDetails); + } // Wake up + + + if (!this.awake) { + this.awake = true; + this.startGrabbing(); + } + } + /** + * Filter the requestPoolManager's pool of request based on the result of + * provided filter function. The provided filter function needs to return false or true + * + * @param filterFunction The filter function for filtering of the requests to keep + * @category requestPool + */ + + }, { + key: "filterRequests", + value: function filterRequests(filterFunction) { + var _this = this; + + Object.keys(this.requestPool).forEach(function (type) { + var requestType = _this.requestPool[type]; + Object.keys(requestType).forEach(function (priority) { + requestType[priority] = requestType[priority].filter(function (requestDetails) { + return filterFunction(requestDetails); + }); + }); + }); + } + /** + * Clears the requests specific to the provided type. For instance, the + * pool of requests of type 'interaction' can be cleared via this function. + * + * + * @param type category of the request (either interaction, prefetch or thumbnail) + * @category requestPool + */ + + }, { + key: "clearRequestStack", + value: function clearRequestStack(type) { + if (!this.requestPool[type]) { + throw new Error("No category for the type ".concat(type, " found")); + } + + this.requestPool[type] = { + 0: [] + }; + } + }, { + key: "sendRequest", + value: function sendRequest(_ref) { + var _this2 = this; + + var requestFn = _ref.requestFn, + type = _ref.type; + // Increment the number of current requests of this type + this.numRequests[type]++; + this.awake = true; + requestFn()["finally"](function () { + _this2.numRequests[type]--; + + _this2.startAgain(); + }); + } + }, { + key: "startGrabbing", + value: function startGrabbing() { + // Begin by grabbing X images + // TODO: This is the reason things aren't going as fast as expected + // const maxSimultaneousRequests = getMaxSimultaneousRequests() + // this.maxNumRequests = { + // interaction: Math.max(maxSimultaneousRequests, 1), + // thumbnail: Math.max(maxSimultaneousRequests - 2, 1), + // prefetch: Math.max(maxSimultaneousRequests - 1, 1), + // } + var maxRequests = this.maxNumRequests.interaction + this.maxNumRequests.thumbnail + this.maxNumRequests.prefetch; + var currentRequests = this.numRequests.interaction + this.numRequests.thumbnail + this.numRequests.prefetch; + var requestsToSend = maxRequests - currentRequests; + + for (var i = 0; i < requestsToSend; i++) { + var _requestDetails = this.getNextRequest(); + + if (_requestDetails === false) { + break; + } else if (_requestDetails) { + this.sendRequest(_requestDetails); + } + } + } + }, { + key: "startAgain", + value: function startAgain() { + var _this3 = this; + + if (!this.awake) { + return; + } + + if (this.grabDelay) { + this.timeoutHandle = window.setTimeout(function () { + _this3.startGrabbing(); + }, this.grabDelay); + } else { + this.startGrabbing(); + } + } + }, { + key: "getSortedPriorityGroups", + value: function getSortedPriorityGroups(type) { + var _this4 = this; + + var priorities = Object.keys(this.requestPool[type]).map(Number).filter(function (priority) { + return _this4.requestPool[type][priority].length; + }).sort(); + return priorities; + } + }, { + key: "getNextRequest", + value: function getNextRequest() { + var interactionPriorities = this.getSortedPriorityGroups('interaction'); + + var _iterator = _createForOfIteratorHelper(interactionPriorities), + _step; + + try { + for (_iterator.s(); !(_step = _iterator.n()).done;) { + var priority = _step.value; + + if (this.requestPool.interaction[priority].length && this.numRequests.interaction < this.maxNumRequests.interaction) { + return this.requestPool.interaction[priority].shift(); + } + } + } catch (err) { + _iterator.e(err); + } finally { + _iterator.f(); + } + + var thumbnailPriorities = this.getSortedPriorityGroups('thumbnail'); + + var _iterator2 = _createForOfIteratorHelper(thumbnailPriorities), + _step2; + + try { + for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) { + var _priority = _step2.value; + + if (this.requestPool.thumbnail[_priority].length && this.numRequests.thumbnail < this.maxNumRequests.thumbnail) { + return this.requestPool.thumbnail[_priority].shift(); + } + } + } catch (err) { + _iterator2.e(err); + } finally { + _iterator2.f(); + } + + var prefetchPriorities = this.getSortedPriorityGroups('prefetch'); + + var _iterator3 = _createForOfIteratorHelper(prefetchPriorities), + _step3; + + try { + for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) { + var _priority2 = _step3.value; + + if (this.requestPool.prefetch[_priority2].length && this.numRequests.prefetch < this.maxNumRequests.prefetch) { + return this.requestPool.prefetch[_priority2].shift(); + } + } + } catch (err) { + _iterator3.e(err); + } finally { + _iterator3.f(); + } + + if (!interactionPriorities.length && !thumbnailPriorities.length && !prefetchPriorities.length) { + this.awake = false; + } + + return false; + } + /** + * Returns the request pool containing different categories, their priority and + * the added request details. + * + * @returns + * @category requestPool + */ + + }, { + key: "getRequestPool", + value: function getRequestPool() { + return this.requestPool; + } + }]); + + return RequestPoolManager; +}(); + + + +/***/ }), + +/***/ "./requestPool/imageLoadPoolManager.ts": +/*!*********************************************!*\ + !*** ./requestPool/imageLoadPoolManager.ts ***! + \*********************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _RequestPoolManager_ts__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./RequestPoolManager.ts */ "./requestPool/RequestPoolManager.ts"); + // Loading = Retrieval + Decoding + +var imageLoadPoolManager = new _RequestPoolManager_ts__WEBPACK_IMPORTED_MODULE_0__["RequestPoolManager"](); +imageLoadPoolManager.maxNumRequests = { + interaction: 1000, + thumbnail: 1000, + prefetch: 1000 +}; +imageLoadPoolManager.grabDelay = 0; +/* harmony default export */ __webpack_exports__["default"] = (imageLoadPoolManager); + +/***/ }), + +/***/ "./requestPool/imageRetrievalPoolManager.ts": +/*!**************************************************!*\ + !*** ./requestPool/imageRetrievalPoolManager.ts ***! + \**************************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _RequestPoolManager_ts__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./RequestPoolManager.ts */ "./requestPool/RequestPoolManager.ts"); + // Retrieval (usually) === XHR requests + +var imageRetrievalPoolManager = new _RequestPoolManager_ts__WEBPACK_IMPORTED_MODULE_0__["RequestPoolManager"](); +imageRetrievalPoolManager.maxNumRequests = { + interaction: 20, + thumbnail: 20, + prefetch: 20 +}; +imageRetrievalPoolManager.grabDelay = 0; +/* harmony default export */ __webpack_exports__["default"] = (imageRetrievalPoolManager); + +/***/ }), + +/***/ "./reset.js": +/*!******************!*\ + !*** ./reset.js ***! + \******************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./internal/getDefaultViewport.js */ "./internal/getDefaultViewport.js"); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _updateImage_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./updateImage.js */ "./updateImage.js"); + + + +/** + * Resets the viewport to the default settings + * + * @param {HTMLElement} element An HTML Element enabled for Cornerstone + * @returns {void} + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"])(element); + enabledElement.viewport = Object(_internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_0__["default"])(enabledElement.canvas, enabledElement.image); + Object(_updateImage_js__WEBPACK_IMPORTED_MODULE_2__["default"])(element); +}); + +/***/ }), + +/***/ "./resize.js": +/*!*******************!*\ + !*** ./resize.js ***! + \*******************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _fitToWindow_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./fitToWindow.js */ "./fitToWindow.js"); +/* harmony import */ var _updateImage_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./updateImage.js */ "./updateImage.js"); +/* harmony import */ var _triggerEvent_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./triggerEvent.js */ "./triggerEvent.js"); +/* harmony import */ var _internal_getImageSize_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./internal/getImageSize.js */ "./internal/getImageSize.js"); +/* harmony import */ var _events_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./events.js */ "./events.js"); + + + + + + +/** + * This module is responsible for enabling an element to display images with cornerstone + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @param {HTMLElement} canvas The Canvas DOM element within the DOM element enabled for Cornerstone + * @returns {void} + */ + +function setCanvasSize(element, canvas) { + // The device pixel ratio is 1.0 for normal displays and > 1.0 + // For high DPI displays like Retina + + /* + This functionality is disabled due to buggy behavior on systems with mixed DPI's. If the canvas + is created on a display with high DPI (e.g. 2.0) and then the browser window is dragged to + a different display with a different DPI (e.g. 1.0), the canvas is not recreated so the pageToPixel + produces incorrect results. I couldn't find any way to determine when the DPI changed other than + by polling which is not very clean. If anyone has any ideas here, please let me know, but for now + we will disable this functionality. We may want + to add a mechanism to optionally enable this functionality if we can determine it is safe to do + so (e.g. iPad or iPhone or perhaps enumerate the displays on the system. I am choosing + to be cautious here since I would rather not have bug reports or safety issues related to this + scenario. + var devicePixelRatio = window.devicePixelRatio; + if(devicePixelRatio === undefined) { + devicePixelRatio = 1.0; + } + */ + // Avoid setting the same value because it flashes the canvas with IE and Edge + if (canvas.width !== element.clientWidth) { + canvas.width = element.clientWidth; + canvas.style.width = "".concat(element.clientWidth, "px"); + } // Avoid setting the same value because it flashes the canvas with IE and Edge + + + if (canvas.height !== element.clientHeight) { + canvas.height = element.clientHeight; + canvas.style.height = "".concat(element.clientHeight, "px"); + } +} +/** + * Checks if the image of a given enabled element fitted the window + * before the resize + * + * @param {EnabledElement} enabledElement The Cornerstone Enabled Element + * @param {number} oldCanvasWidth The width of the canvas before the resize + * @param {number} oldCanvasHeight The height of the canvas before the resize + * @return {Boolean} true if it fitted the windows, false otherwise + */ + + +function wasFitToWindow(enabledElement, oldCanvasWidth, oldCanvasHeight) { + var scale = enabledElement.viewport.scale; + var imageSize = Object(_internal_getImageSize_js__WEBPACK_IMPORTED_MODULE_4__["default"])(enabledElement.image, enabledElement.viewport.rotation); + var imageWidth = Math.round(imageSize.width * scale); + var imageHeight = Math.round(imageSize.height * scale); + var x = enabledElement.viewport.translation.x; + var y = enabledElement.viewport.translation.y; + return imageWidth === oldCanvasWidth && imageHeight <= oldCanvasHeight || imageWidth <= oldCanvasWidth && imageHeight === oldCanvasHeight && x === 0 && y === 0; +} +/** + * Rescale the image relative to the changed size of the canvas + * + * @param {EnabledElement} enabledElement The Cornerstone Enabled Element + * @param {number} oldCanvasWidth The width of the canvas before the resize + * @param {number} oldCanvasHeight The height of the canvas before the resize + * @return {void} + */ + + +function relativeRescale(enabledElement, oldCanvasWidth, oldCanvasHeight) { + var scale = enabledElement.viewport.scale; + var canvasWidth = enabledElement.canvas.width; + var canvasHeight = enabledElement.canvas.height; + var relWidthChange = canvasWidth / oldCanvasWidth; + var relHeightChange = canvasHeight / oldCanvasHeight; + var relChange = Math.sqrt(relWidthChange * relHeightChange); + enabledElement.viewport.scale = relChange * scale; +} +/** + * Resizes an enabled element and optionally fits the image to window + * + * @param {HTMLElement} element The DOM element enabled for Cornerstone + * @param {Boolean} forceFitToWindow true to to force a refit, false to rescale accordingly + * @returns {void} + */ + + +/* harmony default export */ __webpack_exports__["default"] = (function (element, forceFitToWindow) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + var oldCanvasWidth = enabledElement.canvas.width; + var oldCanvasHeight = enabledElement.canvas.height; + setCanvasSize(element, enabledElement.canvas); + var eventData = { + element: element + }; + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_3__["default"])(element, _events_js__WEBPACK_IMPORTED_MODULE_5__["default"].ELEMENT_RESIZED, eventData); + + if (enabledElement.image === undefined) { + return; + } + + if (forceFitToWindow || wasFitToWindow(enabledElement, oldCanvasWidth, oldCanvasHeight)) { + // Fit the image to the window again if it fitted before the resize + Object(_fitToWindow_js__WEBPACK_IMPORTED_MODULE_1__["default"])(element); + } else { + // Adapt the scale of a zoomed or panned image relative to the size change + relativeRescale(enabledElement, oldCanvasWidth, oldCanvasHeight); + Object(_updateImage_js__WEBPACK_IMPORTED_MODULE_2__["default"])(element); + } +}); + +/***/ }), + +/***/ "./setToPixelCoordinateSystem.js": +/*!***************************************!*\ + !*** ./setToPixelCoordinateSystem.js ***! + \***************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _internal_calculateTransform_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./internal/calculateTransform.js */ "./internal/calculateTransform.js"); + +/** + * Sets the canvas context transformation matrix to the pixel coordinate system. This allows + * geometry to be driven using the canvas context using coordinates in the pixel coordinate system + * @param {EnabledElement} enabledElement The + * @param {CanvasRenderingContext2D} context The CanvasRenderingContext2D for the enabledElement's Canvas + * @param {Number} [scale] Optional scale to apply + * @returns {void} + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (enabledElement, context, scale) { + if (enabledElement === undefined) { + throw new Error('setToPixelCoordinateSystem: parameter enabledElement must not be undefined'); + } + + if (context === undefined) { + throw new Error('setToPixelCoordinateSystem: parameter context must not be undefined'); + } + + var transform = Object(_internal_calculateTransform_js__WEBPACK_IMPORTED_MODULE_0__["default"])(enabledElement, scale); + context.setTransform(transform.m[0], transform.m[1], transform.m[2], transform.m[3], transform.m[4], transform.m[5]); +}); + +/***/ }), + +/***/ "./setViewport.js": +/*!************************!*\ + !*** ./setViewport.js ***! + \************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./internal/getDefaultViewport.js */ "./internal/getDefaultViewport.js"); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _updateImage_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./updateImage.js */ "./updateImage.js"); + + + +var MIN_WINDOW_WIDTH = 0.000001; +var MIN_VIEWPORT_SCALE = 0.0001; +/** + * Sets/updates viewport of a given enabled element + * + * @param {HTMLElement} element - DOM element of the enabled element + * @param {Viewport} [viewport] - Object containing the viewport properties + * @returns {void} + * @memberof ViewportSettings + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element, viewport) { + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_1__["getEnabledElement"])(element); // If viewport is not already set, start with default and merge new + // viewport options later + + if (enabledElement.viewport === undefined) { + enabledElement.viewport = Object(_internal_getDefaultViewport_js__WEBPACK_IMPORTED_MODULE_0__["default"])(enabledElement.canvas); + } // Merge viewport + + + if (viewport) { + for (var attrname in viewport) { + if (viewport[attrname] !== null) { + enabledElement.viewport[attrname] = viewport[attrname]; + } + } + } // Prevent window width from being too small (note that values close to zero are valid and can occur with + // PET images in particular) + + + if (enabledElement.viewport.voi.windowWidth) { + enabledElement.viewport.voi.windowWidth = Math.max(enabledElement.viewport.voi.windowWidth, MIN_WINDOW_WIDTH); + } // Prevent scale from getting too small + + + if (enabledElement.viewport.scale) { + enabledElement.viewport.scale = Math.max(enabledElement.viewport.scale, MIN_VIEWPORT_SCALE); + } // Normalize the rotation value to a positive rotation in degrees + + + enabledElement.viewport.rotation %= 360; + + if (enabledElement.viewport.rotation < 0) { + enabledElement.viewport.rotation += 360; + } + + if (enabledElement.image) { + // Force the image to be updated since the viewport has been modified + Object(_updateImage_js__WEBPACK_IMPORTED_MODULE_2__["default"])(element); + } +}); + +/***/ }), + +/***/ "./triggerEvent.js": +/*!*************************!*\ + !*** ./triggerEvent.js ***! + \*************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return triggerEvent; }); +/** + * Trigger a CustomEvent + * + * @param {EventTarget} el The element or EventTarget to trigger the event upon + * @param {String} type The event type name + * @param {Object|null} detail=null The event data to be sent + * @returns {Boolean} The return value is false if at least one event listener called preventDefault(). Otherwise it returns true. + */ +function triggerEvent(el, type) { + var detail = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null; + var event; // This check is needed to polyfill CustomEvent on IE11- + + if (typeof window.CustomEvent === 'function') { + event = new CustomEvent(type, { + detail: detail, + cancelable: true + }); + } else { + event = document.createEvent('CustomEvent'); + event.initCustomEvent(type, true, true, detail); + } + + return el.dispatchEvent(event); +} + +/***/ }), + +/***/ "./updateImage.js": +/*!************************!*\ + !*** ./updateImage.js ***! + \************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _enabledElements_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./enabledElements.js */ "./enabledElements.js"); +/* harmony import */ var _internal_drawImage_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./internal/drawImage.js */ "./internal/drawImage.js"); + + +/** + * Forces the image to be updated/redrawn for the specified enabled element + * @param {HTMLElement} element An HTML Element enabled for Cornerstone + * @param {Boolean} [invalidated=false] Whether or not the image pixel data has been changed, necessitating a redraw + * + * @returns {void} + * @memberof Drawing + */ + +/* harmony default export */ __webpack_exports__["default"] = (function (element) { + var invalidated = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false; + var enabledElement = Object(_enabledElements_js__WEBPACK_IMPORTED_MODULE_0__["getEnabledElement"])(element); + Object(_internal_drawImage_js__WEBPACK_IMPORTED_MODULE_1__["default"])(enabledElement, invalidated); +}); + +/***/ }), + +/***/ "./webgl/createProgramFromString.js": +/*!******************************************!*\ + !*** ./webgl/createProgramFromString.js ***! + \******************************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/** + * Creates and compiles a shader. + * + * @param {!WebGLRenderingContext} gl The WebGL Context. + * @param {string} shaderSource The GLSL source code for the shader. + * @param {number} shaderType The type of shader, VERTEX_SHADER or FRAGMENT_SHADER. + * + * @return {!WebGLShader} The shader. + * @memberof WebGLRendering + */ +function compileShader(gl, shaderSource, shaderType) { + // Create the shader object + var shader = gl.createShader(shaderType); // Set the shader source code. + + gl.shaderSource(shader, shaderSource); // Compile the shader + + gl.compileShader(shader); // Check if it compiled + + var success = gl.getShaderParameter(shader, gl.COMPILE_STATUS); + + if (!success && !gl.isContextLost()) { + // Something went wrong during compilation; get the error + var infoLog = gl.getShaderInfoLog(shader); + console.error("Could not compile shader:\n".concat(infoLog)); + } + + return shader; +} +/** + * Creates a program from 2 shaders. + * + * @param {!WebGLRenderingContext} gl The WebGL context. + * @param {!WebGLShader} vertexShader A vertex shader. + * @param {!WebGLShader} fragmentShader A fragment shader. + * @return {!WebGLProgram} A program. + * @memberof WebGLRendering + */ + + +function createProgram(gl, vertexShader, fragmentShader) { + // Create a program. + var program = gl.createProgram(); // Attach the shaders. + + gl.attachShader(program, vertexShader); + gl.attachShader(program, fragmentShader); // Link the program. + + gl.linkProgram(program); // Check if it linked. + + var success = gl.getProgramParameter(program, gl.LINK_STATUS); + + if (!success && !gl.isContextLost()) { + // Something went wrong with the link + var infoLog = gl.getProgramInfoLog(program); + console.error("WebGL program filed to link:\n".concat(infoLog)); + } + + return program; +} +/** + * Creates a program from 2 shaders source (Strings) + * @param {!WebGLRenderingContext} gl The WebGL context. + * @param {!WebGLShader} vertexShaderSrc Vertex shader string + * @param {!WebGLShader} fragShaderSrc Fragment shader string + * @return {!WebGLProgram} A program + * @memberof WebGLRendering + */ + + +/* harmony default export */ __webpack_exports__["default"] = (function (gl, vertexShaderSrc, fragShaderSrc) { + var vertexShader = compileShader(gl, vertexShaderSrc, gl.VERTEX_SHADER); + var fragShader = compileShader(gl, fragShaderSrc, gl.FRAGMENT_SHADER); + return createProgram(gl, vertexShader, fragShader); +}); + +/***/ }), + +/***/ "./webgl/index.js": +/*!************************!*\ + !*** ./webgl/index.js ***! + \************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _renderer_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./renderer.js */ "./webgl/renderer.js"); +/* harmony import */ var _createProgramFromString_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./createProgramFromString.js */ "./webgl/createProgramFromString.js"); +/* harmony import */ var _textureCache_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./textureCache.js */ "./webgl/textureCache.js"); + + + +/** + * @module WebGLRendering + */ + +var mod = { + createProgramFromString: _createProgramFromString_js__WEBPACK_IMPORTED_MODULE_1__["default"], + renderer: { + render: _renderer_js__WEBPACK_IMPORTED_MODULE_0__["render"], + initRenderer: _renderer_js__WEBPACK_IMPORTED_MODULE_0__["initRenderer"], + getRenderCanvas: _renderer_js__WEBPACK_IMPORTED_MODULE_0__["getRenderCanvas"], + isWebGLAvailable: _renderer_js__WEBPACK_IMPORTED_MODULE_0__["isWebGLAvailable"] + }, + textureCache: _textureCache_js__WEBPACK_IMPORTED_MODULE_2__["default"] +}; +Object.defineProperty(mod, 'isWebGLInitialized', { + enumerable: true, + configurable: false, + get: function get() { + return _renderer_js__WEBPACK_IMPORTED_MODULE_0__["isWebGLInitialized"]; + } +}); +/* harmony default export */ __webpack_exports__["default"] = (mod); + +/***/ }), + +/***/ "./webgl/renderer.js": +/*!***************************!*\ + !*** ./webgl/renderer.js ***! + \***************************/ +/*! exports provided: isWebGLInitialized, getRenderCanvas, initRenderer, render, isWebGLAvailable */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isWebGLInitialized", function() { return isWebGLInitialized; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getRenderCanvas", function() { return getRenderCanvas; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "initRenderer", function() { return initRenderer; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "render", function() { return render; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isWebGLAvailable", function() { return isWebGLAvailable; }); +/* harmony import */ var _shaders_index_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./shaders/index.js */ "./webgl/shaders/index.js"); +/* harmony import */ var _vertexShader_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./vertexShader.js */ "./webgl/vertexShader.js"); +/* harmony import */ var _textureCache_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./textureCache.js */ "./webgl/textureCache.js"); +/* harmony import */ var _createProgramFromString_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./createProgramFromString.js */ "./webgl/createProgramFromString.js"); +/* eslint no-bitwise: 0 */ + + + + +var renderCanvas = document.createElement('canvas'); +var gl; +var texCoordBuffer; +var positionBuffer; +var isWebGLInitialized = false; + +function getRenderCanvas() { + return renderCanvas; +} + +function initShaders() { + for (var id in _shaders_index_js__WEBPACK_IMPORTED_MODULE_0__["shaders"]) { + // Console.log("WEBGL: Loading shader", id); + var shader = _shaders_index_js__WEBPACK_IMPORTED_MODULE_0__["shaders"][id]; + shader.attributes = {}; + shader.uniforms = {}; + shader.vert = _vertexShader_js__WEBPACK_IMPORTED_MODULE_1__["vertexShader"]; + shader.program = Object(_createProgramFromString_js__WEBPACK_IMPORTED_MODULE_3__["default"])(gl, shader.vert, shader.frag); + shader.attributes.texCoordLocation = gl.getAttribLocation(shader.program, 'a_texCoord'); + gl.enableVertexAttribArray(shader.attributes.texCoordLocation); + shader.attributes.positionLocation = gl.getAttribLocation(shader.program, 'a_position'); + gl.enableVertexAttribArray(shader.attributes.positionLocation); + shader.uniforms.resolutionLocation = gl.getUniformLocation(shader.program, 'u_resolution'); + } +} + +function initRenderer() { + if (isWebGLInitialized === true) { + // Console.log("WEBGL Renderer already initialized"); + return; + } + + if (initWebGL(renderCanvas)) { + initBuffers(); + initShaders(); // Console.log("WEBGL Renderer initialized!"); + + isWebGLInitialized = true; + } +} + +function updateRectangle(gl, width, height) { + gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([width, height, 0, height, width, 0, 0, 0]), gl.STATIC_DRAW); +} + +function handleLostContext(event) { + event.preventDefault(); + console.warn('WebGL Context Lost!'); +} + +function handleRestoredContext(event) { + event.preventDefault(); + isWebGLInitialized = false; + _textureCache_js__WEBPACK_IMPORTED_MODULE_2__["default"].purgeCache(); + initRenderer(); // Console.log('WebGL Context Restored.'); +} + +function initWebGL(canvas) { + gl = null; + + try { + // Try to grab the standard context. If it fails, fallback to experimental. + var options = { + desynchronized: true, + preserveDrawingBuffer: true // Preserve buffer so we can copy to display canvas element + + }; // ---------------- Testing purposes ------------- + // If (debug === true && WebGLDebugUtils) { + // RenderCanvas = WebGLDebugUtils.makeLostContextSimulatingCanvas(renderCanvas); + // } + // ---------------- Testing purposes ------------- + + gl = canvas.getContext('webgl', options) || canvas.getContext('experimental-webgl', options); // Set up event listeners for context lost / context restored + + canvas.removeEventListener('webglcontextlost', handleLostContext, false); + canvas.addEventListener('webglcontextlost', handleLostContext, false); + canvas.removeEventListener('webglcontextrestored', handleRestoredContext, false); + canvas.addEventListener('webglcontextrestored', handleRestoredContext, false); + } catch (error) { + throw new Error('Error creating WebGL context'); + } // If we don't have a GL context, give up now + + + if (!gl) { + console.error('Unable to initialize WebGL. Your browser may not support it.'); + gl = null; + } + + return gl; +} +/** + * Returns the image data type as a string representation. + * @param {any} image The cornerstone image object + * @returns {string} image data type (rgb, iint16, uint16, int8 and uint8) + * @memberof WebGLRendering + */ + + +function getImageDataType(image) { + if (image.color) { + return 'rgb'; + } + + var pixelData = image.getPixelData(); + + if (pixelData instanceof Int16Array) { + return 'int16'; + } + + if (pixelData instanceof Uint16Array) { + return 'uint16'; + } + + if (pixelData instanceof Int8Array) { + return 'int8'; + } + + return 'uint8'; +} + +function getShaderProgram(image) { + var datatype = getImageDataType(image); // We need a mechanism for + // Choosing the shader based on the image datatype + // Console.log("Datatype: " + datatype); + + if (_shaders_index_js__WEBPACK_IMPORTED_MODULE_0__["shaders"].hasOwnProperty(datatype)) { + return _shaders_index_js__WEBPACK_IMPORTED_MODULE_0__["shaders"][datatype]; + } + + return _shaders_index_js__WEBPACK_IMPORTED_MODULE_0__["shaders"].rgb; +} + +function generateTexture(image) { + var TEXTURE_FORMAT = { + uint8: gl.LUMINANCE, + int8: gl.LUMINANCE_ALPHA, + uint16: gl.LUMINANCE_ALPHA, + int16: gl.RGB, + rgb: gl.RGB + }; + var TEXTURE_BYTES = { + int8: 1, + // Luminance + uint16: 2, + // Luminance + Alpha + int16: 3, + // RGB + rgb: 3 // RGB + + }; + var imageDataType = getImageDataType(image); + var format = TEXTURE_FORMAT[imageDataType]; // GL texture configuration + + var texture = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, texture); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); + gl.pixelStorei(gl.UNPACK_ALIGNMENT, 1); + var imageData = _shaders_index_js__WEBPACK_IMPORTED_MODULE_0__["dataUtilities"][imageDataType].storedPixelDataToImageData(image, image.width, image.height); + gl.texImage2D(gl.TEXTURE_2D, 0, format, image.width, image.height, 0, format, gl.UNSIGNED_BYTE, imageData); // Calculate the size in bytes of this image in memory + + var sizeInBytes = image.width * image.height * TEXTURE_BYTES[imageDataType]; + return { + texture: texture, + sizeInBytes: sizeInBytes + }; +} + +function getImageTexture(image) { + var imageTexture = _textureCache_js__WEBPACK_IMPORTED_MODULE_2__["default"].getImageTexture(image.imageId); + + if (!imageTexture) { + // Console.log("Generating texture for imageid: ", image.imageId); + imageTexture = generateTexture(image); + _textureCache_js__WEBPACK_IMPORTED_MODULE_2__["default"].putImageTexture(image, imageTexture); + } + + return imageTexture.texture; +} + +function initBuffers() { + positionBuffer = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer); + gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([1, 1, 0, 1, 1, 0, 0, 0]), gl.STATIC_DRAW); + texCoordBuffer = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, texCoordBuffer); + gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([1.0, 1.0, 0.0, 1.0, 1.0, 0.0, 0.0, 0.0]), gl.STATIC_DRAW); +} + +function renderQuad(shader, parameters, texture, width, height) { + gl.clearColor(1.0, 0.0, 0.0, 1.0); + gl.viewport(0, 0, width, height); + gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); + gl.useProgram(shader.program); + gl.bindBuffer(gl.ARRAY_BUFFER, texCoordBuffer); + gl.vertexAttribPointer(shader.attributes.texCoordLocation, 2, gl.FLOAT, false, 0, 0); + gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer); + gl.vertexAttribPointer(shader.attributes.positionLocation, 2, gl.FLOAT, false, 0, 0); + + for (var key in parameters) { + var uniformLocation = gl.getUniformLocation(shader.program, key); + + if (!uniformLocation) { + continue; // Disabling this error for now since RGB requires minPixelValue + // but the other shaders do not. + // throw `Could not access location for uniform: ${key}`; + } + + var uniform = parameters[key]; + var type = uniform.type; + var value = uniform.value; + + if (type === 'i') { + gl.uniform1i(uniformLocation, value); + } else if (type === 'f') { + gl.uniform1f(uniformLocation, value); + } else if (type === '2f') { + gl.uniform2f(uniformLocation, value[0], value[1]); + } + } + + updateRectangle(gl, width, height); + gl.activeTexture(gl.TEXTURE0); + gl.bindTexture(gl.TEXTURE_2D, texture); + gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4); +} + +function render(enabledElement) { + // Resize the canvas + var image = enabledElement.image; + renderCanvas.width = image.width; + renderCanvas.height = image.height; + var viewport = enabledElement.viewport; // Render the current image + + var shader = getShaderProgram(image); + var texture = getImageTexture(image); + var parameters = { + u_resolution: { + type: '2f', + value: [image.width, image.height] + }, + wc: { + type: 'f', + value: viewport.voi.windowCenter + }, + ww: { + type: 'f', + value: viewport.voi.windowWidth + }, + slope: { + type: 'f', + value: image.slope + }, + intercept: { + type: 'f', + value: image.intercept + }, + minPixelValue: { + type: 'f', + value: image.minPixelValue + }, + invert: { + type: 'i', + value: viewport.invert ? 1 : 0 + } + }; + renderQuad(shader, parameters, texture, image.width, image.height); + return renderCanvas; +} +function isWebGLAvailable() { + // Adapted from + // http://stackoverflow.com/questions/9899807/three-js-detect-webgl-support-and-fallback-to-regular-canvas + var options = { + failIfMajorPerformanceCaveat: true + }; + + try { + var canvas = document.createElement('canvas'); + return Boolean(window.WebGLRenderingContext) && (canvas.getContext('webgl', options) || canvas.getContext('experimental-webgl', options)); + } catch (e) { + return false; + } +} + +/***/ }), + +/***/ "./webgl/shaders/index.js": +/*!********************************!*\ + !*** ./webgl/shaders/index.js ***! + \********************************/ +/*! exports provided: shaders, dataUtilities */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "shaders", function() { return shaders; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "dataUtilities", function() { return dataUtilities; }); +/* harmony import */ var _int16_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./int16.js */ "./webgl/shaders/int16.js"); +/* harmony import */ var _int8_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./int8.js */ "./webgl/shaders/int8.js"); +/* harmony import */ var _rgb_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./rgb.js */ "./webgl/shaders/rgb.js"); +/* harmony import */ var _uint16_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./uint16.js */ "./webgl/shaders/uint16.js"); +/* harmony import */ var _uint8_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./uint8.js */ "./webgl/shaders/uint8.js"); + + + + + +var shaders = { + int16: _int16_js__WEBPACK_IMPORTED_MODULE_0__["int16Shader"], + int8: _int8_js__WEBPACK_IMPORTED_MODULE_1__["int8Shader"], + rgb: _rgb_js__WEBPACK_IMPORTED_MODULE_2__["rgbShader"], + uint16: _uint16_js__WEBPACK_IMPORTED_MODULE_3__["uint16Shader"], + uint8: _uint8_js__WEBPACK_IMPORTED_MODULE_4__["uint8Shader"] +}; +var dataUtilities = { + int16: _int16_js__WEBPACK_IMPORTED_MODULE_0__["int16DataUtilities"], + int8: _int8_js__WEBPACK_IMPORTED_MODULE_1__["int8DataUtilities"], + rgb: _rgb_js__WEBPACK_IMPORTED_MODULE_2__["rgbDataUtilities"], + uint16: _uint16_js__WEBPACK_IMPORTED_MODULE_3__["uint16DataUtilities"], + uint8: _uint8_js__WEBPACK_IMPORTED_MODULE_4__["uint8DataUtilities"] +}; + + +/***/ }), + +/***/ "./webgl/shaders/int16.js": +/*!********************************!*\ + !*** ./webgl/shaders/int16.js ***! + \********************************/ +/*! exports provided: int16DataUtilities, int16Shader */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "int16DataUtilities", function() { return int16DataUtilities; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "int16Shader", function() { return int16Shader; }); +/* eslint no-bitwise: 0 */ +var int16Shader = {}; +/** + * Convert stored pixel data to image data. + * + * Pack int16 into three uint8 channels (r, g, b) + * + * @param {Image} image A Cornerstone Image Object + * @returns {Uint8Array} The image data for use by the WebGL shader + * @memberof WebGLRendering + */ + +function storedPixelDataToImageData(image) { + // Transfer image data to alpha and luminance channels of WebGL texture + // Credit to @jpambrun and @fernandojsg + // Pack int16 into three uint8 channels (r, g, b) + var pixelData = image.getPixelData(); + var numberOfChannels = 3; + var data = new Uint8Array(image.width * image.height * numberOfChannels); + var offset = 0; + + for (var i = 0; i < pixelData.length; i++) { + var val = Math.abs(pixelData[i]); + data[offset++] = val & 0xFF; + data[offset++] = val >> 8; + data[offset++] = pixelData[i] < 0 ? 0 : 1; // 0 For negative, 1 for positive + } + + return data; +} + +var int16DataUtilities = { + storedPixelDataToImageData: storedPixelDataToImageData +}; +int16Shader.frag = 'precision mediump float;' + 'uniform sampler2D u_image;' + 'uniform float ww;' + 'uniform float wc;' + 'uniform float slope;' + 'uniform float intercept;' + 'uniform int invert;' + 'varying vec2 v_texCoord;' + 'void main() {' + // Get texture +'vec4 color = texture2D(u_image, v_texCoord);' + // Calculate luminance from packed texture +'float intensity = color.r*256.0 + color.g*65536.0;' + 'if (color.b == 0.0)' + 'intensity = -intensity;' + // Rescale based on slope and window settings +'intensity = intensity * slope + intercept;' + 'float center0 = wc - 0.5;' + 'float width0 = max(ww, 1.0);' + 'intensity = (intensity - center0) / width0 + 0.5;' + // Clamp intensity +'intensity = clamp(intensity, 0.0, 1.0);' + // RGBA output +'gl_FragColor = vec4(intensity, intensity, intensity, 1.0);' + // Apply any inversion necessary +'if (invert == 1)' + 'gl_FragColor.rgb = 1.0 - gl_FragColor.rgb;' + '}'; + + +/***/ }), + +/***/ "./webgl/shaders/int8.js": +/*!*******************************!*\ + !*** ./webgl/shaders/int8.js ***! + \*******************************/ +/*! exports provided: int8DataUtilities, int8Shader */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "int8DataUtilities", function() { return int8DataUtilities; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "int8Shader", function() { return int8Shader; }); +var int8Shader = {}; +/** + * Convert stored pixel data to image data. + * + * Store data in Uint8Array + * + * @param {Image} image A Cornerstone Image Object + * @returns {Uint8Array} The image data for use by the WebGL shader + * @memberof WebGLRendering + */ + +function storedPixelDataToImageData(image) { + // Transfer image data to alpha channel of WebGL texture + // Store data in Uint8Array + var pixelData = image.getPixelData(); + var numberOfChannels = 2; + var data = new Uint8Array(image.width * image.height * numberOfChannels); + var offset = 0; + + for (var i = 0; i < pixelData.length; i++) { + data[offset++] = pixelData[i]; + data[offset++] = pixelData[i] < 0 ? 0 : 1; // 0 For negative, 1 for positive + } + + return data; +} + +var int8DataUtilities = { + storedPixelDataToImageData: storedPixelDataToImageData +}; +int8Shader.frag = 'precision mediump float;' + 'uniform sampler2D u_image;' + 'uniform float ww;' + 'uniform float wc;' + 'uniform float slope;' + 'uniform float intercept;' + 'uniform int invert;' + 'varying vec2 v_texCoord;' + 'void main() {' + // Get texture +'vec4 color = texture2D(u_image, v_texCoord);' + // Calculate luminance from packed texture +'float intensity = color.r*256.;' + 'if (color.a == 0.0)' + 'intensity = -intensity;' + // Rescale based on slope and window settings +'intensity = intensity * slope + intercept;' + 'float center0 = wc - 0.5;' + 'float width0 = max(ww, 1.0);' + 'intensity = (intensity - center0) / width0 + 0.5;' + // Clamp intensity +'intensity = clamp(intensity, 0.0, 1.0);' + // RGBA output +'gl_FragColor = vec4(intensity, intensity, intensity, 1.0);' + // Apply any inversion necessary +'if (invert == 1)' + 'gl_FragColor.rgb = 1.0 - gl_FragColor.rgb;' + '}'; + + +/***/ }), + +/***/ "./webgl/shaders/rgb.js": +/*!******************************!*\ + !*** ./webgl/shaders/rgb.js ***! + \******************************/ +/*! exports provided: rgbDataUtilities, rgbShader */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rgbDataUtilities", function() { return rgbDataUtilities; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rgbShader", function() { return rgbShader; }); +var rgbShader = {}; +/** + * Convert stored pixel data to image data. + * + * Pack RGB images into a 3-channel RGB texture + * + * @param {Image} image A Cornerstone Image Object + * @returns {Uint8Array} The image data for use by the WebGL shader + * @memberof WebGLRendering + */ + +function storedPixelDataToImageData(image) { + var minPixelValue = image.minPixelValue; + var canvasImageDataIndex = 0; + var storedPixelDataIndex = 0; // Only 3 channels, since we use WebGL's RGB texture format + + var numStoredPixels = image.width * image.height * 4; + var numOutputPixels = image.width * image.height * 3; + var storedPixelData = image.getPixelData(); + var data = new Uint8Array(numOutputPixels); // NOTE: As of Nov 2014, most javascript engines have lower performance when indexing negative indexes. + // We have a special code path for this case that improves performance. Thanks to @jpambrun for this enhancement + + if (minPixelValue < 0) { + while (storedPixelDataIndex < numStoredPixels) { + data[canvasImageDataIndex++] = storedPixelData[storedPixelDataIndex++] + -minPixelValue; // Red + + data[canvasImageDataIndex++] = storedPixelData[storedPixelDataIndex++] + -minPixelValue; // Green + + data[canvasImageDataIndex++] = storedPixelData[storedPixelDataIndex++] + -minPixelValue; // Blue + + storedPixelDataIndex += 1; // The stored pixel data has 4 channels + } + } else { + while (storedPixelDataIndex < numStoredPixels) { + data[canvasImageDataIndex++] = storedPixelData[storedPixelDataIndex++]; // Red + + data[canvasImageDataIndex++] = storedPixelData[storedPixelDataIndex++]; // Green + + data[canvasImageDataIndex++] = storedPixelData[storedPixelDataIndex++]; // Blue + + storedPixelDataIndex += 1; // The stored pixel data has 4 channels + } + } + + return data; +} + +var rgbDataUtilities = { + storedPixelDataToImageData: storedPixelDataToImageData +}; +rgbShader.frag = 'precision mediump float;' + 'uniform sampler2D u_image;' + 'uniform float ww;' + 'uniform float wc;' + 'uniform float slope;' + 'uniform float intercept;' + 'uniform float minPixelValue;' + 'uniform int invert;' + 'varying vec2 v_texCoord;' + 'void main() {' + // Get texture +'vec3 color = texture2D(u_image, v_texCoord).xyz;' + // Rescale based on slope and intercept +'color = color * 256.0 * slope + intercept;' + // Apply window settings +'float center0 = wc - 0.5 - minPixelValue;' + 'float width0 = max(ww, 1.0);' + 'color = (color - center0) / width0 + 0.5;' + // RGBA output +'gl_FragColor = vec4(color, 1);' + // Apply any inversion necessary +'if (invert == 1)' + 'gl_FragColor.rgb = 1. - gl_FragColor.rgb;' + '}'; + + +/***/ }), + +/***/ "./webgl/shaders/uint16.js": +/*!*********************************!*\ + !*** ./webgl/shaders/uint16.js ***! + \*********************************/ +/*! exports provided: uint16DataUtilities, uint16Shader */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "uint16DataUtilities", function() { return uint16DataUtilities; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "uint16Shader", function() { return uint16Shader; }); +/* eslint no-bitwise: 0 */ +var uint16Shader = {}; +/** + * Convert stored pixel data to image data. + * + * For uint16 pack uint16 into two uint8 channels (r and a). + * + * @param {Image} image A Cornerstone Image Object + * @returns {Uint8Array} The image data for use by the WebGL shader + * @memberof WebGLRendering + */ + +function storedPixelDataToImageData(image) { + // Transfer image data to alpha and luminance channels of WebGL texture + // Credit to @jpambrun and @fernandojsg + // Pack uint16 into two uint8 channels (r and a) + var pixelData = image.getPixelData(); + var numberOfChannels = 2; + var data = new Uint8Array(image.width * image.height * numberOfChannels); + var offset = 0; + + for (var i = 0; i < pixelData.length; i++) { + var val = pixelData[i]; + data[offset++] = val & 0xFF; + data[offset++] = val >> 8; + } + + return data; +} + +var uint16DataUtilities = { + storedPixelDataToImageData: storedPixelDataToImageData +}; +uint16Shader.frag = 'precision mediump float;' + 'uniform sampler2D u_image;' + 'uniform float ww;' + 'uniform float wc;' + 'uniform float slope;' + 'uniform float intercept;' + 'uniform int invert;' + 'varying vec2 v_texCoord;' + 'void main() {' + // Get texture +'vec4 color = texture2D(u_image, v_texCoord);' + // Calculate luminance from packed texture +'float intensity = color.r*256.0 + color.a*65536.0;' + // Rescale based on slope and window settings +'intensity = intensity * slope + intercept;' + 'float center0 = wc - 0.5;' + 'float width0 = max(ww, 1.0);' + 'intensity = (intensity - center0) / width0 + 0.5;' + // Clamp intensity +'intensity = clamp(intensity, 0.0, 1.0);' + // RGBA output +'gl_FragColor = vec4(intensity, intensity, intensity, 1.0);' + // Apply any inversion necessary +'if (invert == 1)' + 'gl_FragColor.rgb = 1.0 - gl_FragColor.rgb;' + '}'; + + +/***/ }), + +/***/ "./webgl/shaders/uint8.js": +/*!********************************!*\ + !*** ./webgl/shaders/uint8.js ***! + \********************************/ +/*! exports provided: uint8DataUtilities, uint8Shader */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "uint8DataUtilities", function() { return uint8DataUtilities; }); +/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "uint8Shader", function() { return uint8Shader; }); +var uint8Shader = {}; +/** + * Convert stored pixel data to image data. Here we will store + * all data in the alpha channel. + * + * @param {Image} image A Cornerstone Image Object + * @returns {Uint8Array} The image data for use by the WebGL shader + * @memberof WebGLRendering + */ + +function storedPixelDataToImageData(image) { + // Transfer image data to alpha channel of WebGL texture + return image.getPixelData(); +} + +var uint8DataUtilities = { + storedPixelDataToImageData: storedPixelDataToImageData +}; +uint8Shader.frag = 'precision mediump float;' + 'uniform sampler2D u_image;' + 'uniform float ww;' + 'uniform float wc;' + 'uniform float slope;' + 'uniform float intercept;' + 'uniform int invert;' + 'varying vec2 v_texCoord;' + 'void main() {' + // Get texture +'vec4 color = texture2D(u_image, v_texCoord);' + // Calculate luminance from packed texture +'float intensity = color.r*256.0;' + // Rescale based on slope and window settings +'intensity = intensity * slope + intercept;' + 'float center0 = wc - 0.5;' + 'float width0 = max(ww, 1.0);' + 'intensity = (intensity - center0) / width0 + 0.5;' + // Clamp intensity +'intensity = clamp(intensity, 0.0, 1.0);' + // RGBA output +'gl_FragColor = vec4(intensity, intensity, intensity, 1.0);' + // Apply any inversion necessary +'if (invert == 1)' + 'gl_FragColor.rgb = 1.0 - gl_FragColor.rgb;' + '}'; + + +/***/ }), + +/***/ "./webgl/textureCache.js": +/*!*******************************!*\ + !*** ./webgl/textureCache.js ***! + \*******************************/ +/*! exports provided: default */ +/***/ (function(module, __webpack_exports__, __webpack_require__) { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _events_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../events.js */ "./events.js"); +/* harmony import */ var _triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../triggerEvent.js */ "./triggerEvent.js"); + + +/** + * This module deals with caching image textures in VRAM for WebGL + * @module WebGLTextureCache + */ + +var imageCache = {}; +var cachedImages = []; +var maximumSizeInBytes = 1024 * 1024 * 256; // 256 MB + +var cacheSizeInBytes = 0; + +function getCacheInfo() { + return { + maximumSizeInBytes: maximumSizeInBytes, + cacheSizeInBytes: cacheSizeInBytes, + numberOfImagesCached: cachedImages.length + }; +} + +function purgeCacheIfNecessary() { + // If max cache size has not been exceeded, do nothing + if (cacheSizeInBytes <= maximumSizeInBytes) { + return; + } // Cache size has been exceeded, create list of images sorted by timeStamp + // So we can purge the least recently used image + + + function compare(a, b) { + if (a.timeStamp > b.timeStamp) { + return -1; + } + + if (a.timeStamp < b.timeStamp) { + return 1; + } + + return 0; + } + + cachedImages.sort(compare); // Remove images as necessary + + while (cacheSizeInBytes > maximumSizeInBytes) { + var lastCachedImage = cachedImages[cachedImages.length - 1]; + cacheSizeInBytes -= lastCachedImage.sizeInBytes; + delete imageCache[lastCachedImage.imageId]; + cachedImages.pop(); + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__["default"])(_events_js__WEBPACK_IMPORTED_MODULE_0__["events"], _events_js__WEBPACK_IMPORTED_MODULE_0__["default"].WEBGL_TEXTURE_REMOVED, { + imageId: lastCachedImage.imageId + }); + } + + var cacheInfo = getCacheInfo(); + Object(_triggerEvent_js__WEBPACK_IMPORTED_MODULE_1__["default"])(_events_js__WEBPACK_IMPORTED_MODULE_0__["events"], _events_js__WEBPACK_IMPORTED_MODULE_0__["default"].WEBGL_TEXTURE_CACHE_FULL, cacheInfo); +} + +function setMaximumSizeBytes(numBytes) { + if (numBytes === undefined) { + throw new Error('setMaximumSizeBytes: parameter numBytes must not be undefined'); + } + + if (numBytes.toFixed === undefined) { + throw new Error('setMaximumSizeBytes: parameter numBytes must be a number'); + } + + maximumSizeInBytes = numBytes; + purgeCacheIfNecessary(); +} + +function putImageTexture(image, imageTexture) { + var imageId = image.imageId; + + if (image === undefined) { + throw new Error('putImageTexture: image must not be undefined'); + } + + if (imageId === undefined) { + throw new Error('putImageTexture: imageId must not be undefined'); + } + + if (imageTexture === undefined) { + throw new Error('putImageTexture: imageTexture must not be undefined'); + } + + if (Object.prototype.hasOwnProperty.call(imageCache, imageId) === true) { + throw new Error('putImageTexture: imageId already in cache'); + } + + var cachedImage = { + imageId: imageId, + imageTexture: imageTexture, + timeStamp: new Date(), + sizeInBytes: imageTexture.sizeInBytes + }; + imageCache[imageId] = cachedImage; + cachedImages.push(cachedImage); + + if (imageTexture.sizeInBytes === undefined) { + throw new Error('putImageTexture: imageTexture.sizeInBytes must not be undefined'); + } + + if (imageTexture.sizeInBytes.toFixed === undefined) { + throw new Error('putImageTexture: imageTexture.sizeInBytes is not a number'); + } + + cacheSizeInBytes += cachedImage.sizeInBytes; + purgeCacheIfNecessary(); +} + +function getImageTexture(imageId) { + if (imageId === undefined) { + throw new Error('getImageTexture: imageId must not be undefined'); + } + + var cachedImage = imageCache[imageId]; + + if (cachedImage === undefined) { + return; + } // Bump time stamp for cached image + + + cachedImage.timeStamp = new Date(); + return cachedImage.imageTexture; +} + +function removeImageTexture(imageId) { + if (imageId === undefined) { + throw new Error('removeImageTexture: imageId must not be undefined'); + } + + var cachedImage = imageCache[imageId]; + + if (cachedImage === undefined) { + throw new Error('removeImageTexture: imageId must not be undefined'); + } + + cachedImages.splice(cachedImages.indexOf(cachedImage), 1); + cacheSizeInBytes -= cachedImage.sizeInBytes; + delete imageCache[imageId]; + return cachedImage.imageTexture; +} + +function purgeCache() { + while (cachedImages.length > 0) { + var removedCachedImage = cachedImages.pop(); + delete imageCache[removedCachedImage.imageId]; + } + + cacheSizeInBytes = 0; +} + +/* harmony default export */ __webpack_exports__["default"] = ({ + purgeCache: purgeCache, + getImageTexture: getImageTexture, + putImageTexture: putImageTexture, + removeImageTexture: removeImageTexture, + setMaximumSizeBytes: setMaximumSizeBytes +}); + +/***/ }), + +/***/ "./webgl/vertexShader.js": +/*!*******************************!*\ + !*** ./webgl/vertexShader.js ***! 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