using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;

namespace _1200Gxml心电图绘制
{
   public class ecgMeasure
    {
        //画垂直的 和水平的线
       public void Draw_Measure(Bitmap bit, Point p1, Point p2)
       {

            Graphics gg = Graphics.FromImage(bit);
            Pen pp = new Pen(Color.Blue, float.Parse("1"));
            Pen pp1 = new Pen(Color.Blue, float.Parse("1"));
            //画水平线
            gg.DrawLine(pp, new Point(p1.X,0), new Point(p1.X, bit.Height));
            gg.DrawLine(pp1, p1, p2);
            gg.DrawLine(pp1, p1.X, p1.Y, p1.X, p1.Y - 3);
            gg.DrawLine(pp1, p2.X, p2.Y, p2.X, p2.Y - 3);
            gg.DrawLine(pp, new Point(p2.X, 0), new Point(p2.X, bit.Height));
            double ecgValue = ((double.Parse((p2.X - p1.X).ToString()) / (96 / 25.4)) / 25) * 1000;
            string heartRate = ((int)60000 / ecgValue).ToString("0.0");
            if (ecgValue > 0)
                Draw_Rectangular_And_Text(bit, p2.X, p2.Y, ((int)ecgValue).ToString() + " 毫秒，心率："+ heartRate);


            //Graphics gg = Graphics.FromImage(bit);
            //Pen pp = new Pen(Color.Blue, float.Parse("3"));
            ////画水平线
            //gg.DrawLine(pp, p1, p2);

            //gg.DrawLine(pp, p1.X, p1.Y, p1.X, p1.Y - 3);
            //gg.DrawLine(pp, p2.X, p2.Y, p2.X, p2.Y - 3);
            //double ecgValue=((double.Parse((p2.X - p1.X).ToString())/(96/25.4))/25)*1000;
            //Draw_Rectangular_And_Text(bit, p2.X, p2.Y, ((int)ecgValue).ToString() + " 毫秒");
        }

        //垂直的线
        public void Draw_V_Measure(Bitmap bit, Point p1, Point p2)
        {
            Graphics gg = Graphics.FromImage(bit);
            Pen pp = new Pen(Color.Red, float.Parse("1"));
            //画水平线
            //gg.DrawLine(pp, p1, p2);

            gg.DrawLine(pp, p1.X - 10, p1.Y, p2.X - 10, p2.Y);
            gg.DrawLine(pp, 0, p1.Y, bit.Width , p1.Y);
            gg.DrawLine(pp, 0, p2.Y, bit.Width, p2.Y);
            //gg.DrawLine(pp, p1.X - 10, p1.Y, p2.X - 10, p2.Y);
            //gg.DrawLine(pp, p1.X - 10, p1.Y, p1.X + 30, p1.Y);
            //gg.DrawLine(pp, p2.X - 10, p2.Y, p2.X + 30, p2.Y);
            double ecgMV = ((double.Parse((p2.Y - p1.Y).ToString()) / ((96 / 25.4) * 10)));
            if (ecgMV < 0)
                ecgMV = -ecgMV;
            if (p1.Y < p2.Y)
                Draw_Rectangular_And_Text(bit, p1.X + 10, p1.Y, ecgMV.ToString("0.000") + " mv");
            else
                Draw_Rectangular_And_Text(bit, p2.X + 10, p2.Y, ecgMV.ToString("0.000") + " mv");
        }


        //画矩形和文字
        public void Draw_Rectangular_And_Text(Bitmap bit, int x, int y, string Text)
        {
            //画垂直线
            Graphics gg = Graphics.FromImage(bit);
            Font font = new Font("宋体", 15,FontStyle.Bold); //字体
            Brush brush = Brushes.Red; //字体颜色；
            PointF point = new PointF(x, y); //写字的起始位置
            gg.DrawString(Text, font, brush, point);
        }

    }
}