ddrawbox.cs

用C#写的USB数据采集程序

using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.Windows.Forms;
using System.Text;
using System.Collections;
using System.ComponentModel;

namespace Custom
{
	/// <summary>
	/// 数据绘画
	/// </summary>
	public class DDrawBox : PictureBox
    {
        #region "属性"

        #region "受保护的属性"

        /// <summary>
        /// 要绘制数据的位图
        /// </summary>
        private Bitmap _databmp;
        /// <summary>
        /// 背景色
        /// </summary>
        private Color _fillcolor;
        /// <summary>
        /// 前景色
        /// </summary>
        private Color _coordinatecolor;
        /// <summary>
        /// 数据点的颜色
        /// </summary>
        private Color _datacolor;
        /// <summary>
        /// 选择区域的颜色
        /// </summary>
        private Color _regioncolor;
        /// <summary>
        /// 网格颜色
        /// </summary>
        private Color _gridcolor;
        /// <summary>
        /// 选择线颜色
        /// </summary>
        private Color _selectlinecolor;
        /// <summary>
        /// 选定的x坐标，选定后会显示选定道的计数
        /// </summary>
        private int _selectedx;
        /// <summary>
        /// 选定区域的开始x坐标
        /// </summary>
        private int _regionstartx;
        /// <summary>
        /// 选定区域的结束x坐标
        /// </summary>
        private int _regionendx;
        /// <summary>
        /// 最大横坐标
        /// </summary>
        private int _maxX;
        /// <summary>
        /// 最小横坐标
        /// </summary>
        private int _minX;
        /// <summary>
        /// 最大纵坐标
        /// </summary>
        private int _maxY;
        /// <summary>
        /// 最小纵坐标
        /// </summary>
        private int _minY;
        /// <summary>
        /// 要显示的数据
        /// </summary>
        private int[] _data;
        /// <summary>
        /// 坐标画笔
        /// </summary>
        private Pen _pencoordinate;
        /// <summary>
        /// 数据画笔
        /// </summary>
        private Pen _pendata;
        /// <summary>
        /// 网格画笔
        /// </summary>
        private Pen _pengrid;
        /// <summary>
        /// 选择线画笔
        /// </summary>
        private Pen _penselectline;
        /// <summary>
        /// 坐标刷子
        /// </summary>
        private Brush _brushcoordinate;
        /// <summary>
        /// 区域刷子
        /// </summary>
        private Brush _brushregion;
        /// <summary>
        /// 数据刷子
        /// </summary>
        private Brush _brushdata;
        /// <summary>
        /// 背景刷子
        /// </summary>
        private Brush _brushfill;
        /// <summary>
        /// 数据坐标
        /// </summary>
        private MyCoordinate _coordinate;
        /// <summary>
        /// 绘画方式
        /// </summary>
        private bool _fill;
        /// <summary>
        /// 要绘画的点
        /// </summary>
        private Point[] _p;
        /// <summary>
        /// 坐标基数
        /// </summary>
        static private int[] nbase = { 
            1, 2, 5, 
            10, 20, 50, 
            100, 200, 500, 
            1000, 2000, 5000, 
            10000, 20000, 50000, 
            100000, 200000, 500000, 
            1000000, 2000000, 5000000, 
            10000000, 20000000, 50000000, 
            100000000, 200000000, 500000000};
        /// <summary>
        /// 数据开始的X坐标
        /// </summary>
        private int _datastart;
        /// <summary>
        /// 数据结束的X坐标
        /// </summary>
        private int _dataend;
        /// <summary>
        /// 坐标刻度x点
        /// </summary>
        private ArrayList _px;
        /// <summary>
        /// 坐标刻度y点
        /// </summary>
        private ArrayList _py;
        /// <summary>
        /// 是否画x网格
        /// </summary>
        private bool _paintgridx;
        /// <summary>
        /// 是否画y网格
        /// </summary>
        private bool _paintgridy;
        /// <summary>
        /// X标签
        /// </summary>
        private string _labelX;
        /// <summary>
        /// Y标签
        /// </summary>
        private string _labelY;
        /// <summary>
        /// 刻度标签
        /// </summary>
        private string _labelcalibrate;
        /// <summary>
        /// 绘图对象
        /// </summary>
        private Graphics _g;
        /// <summary>
        /// 感兴趣区
        /// </summary>
        private Hashtable _roi;
        /// <summary>
        /// 激活的感兴趣区
        /// </summary>
        private string _activatedroi;
        /// <summary>
        /// 激活的感兴趣区的颜色
        /// </summary>
        private Color _activatedcolor;
        /// <summary>
        /// 刻度系数
        /// </summary>
        private double[] _calibratecoefficient;
        /// <summary>
        /// 刻度显示
        /// </summary>
        private bool _showcalibrate;
        #region "绘图对象"
        /// <summary>
        /// 绘图对象
        /// </summary>
        protected Graphics G
        {
            get
            {
                return _g;
            }
        }
        #endregion

        #endregion

        #region "公共属性"

        #region "背景色"
        /// <summary>
        /// 获取或设置背景色
		/// </summary>
		public Color FillColor
		{
			set
			{
                if (_fillcolor != value)
                {
                    _fillcolor = value;
                    _brushfill.Dispose();
                    _brushfill = new SolidBrush(value);
                    //重画
                    Draw(true);
                }
			}
            get
            {
                return _fillcolor;
            }
        }
        #endregion

        #region "坐标颜色"
        /// <summary>
        /// 获取或设置坐标颜色
		/// </summary>
		public Color CoordinateColor
		{
			set
			{
                if (_coordinatecolor != value)
                {
                    _coordinatecolor = value;
                    //重定义颜色
                    _pencoordinate.Color = value;
                    _brushcoordinate.Dispose();
                    _brushcoordinate = new SolidBrush(value);
                    //重画
                    Draw(true);
                }
            }
            get
            {
                return _coordinatecolor;
            }
        }
        #endregion

        #region "数据点颜色"
        /// <summary>
        /// 获取或设置数据点的颜色
		/// </summary>
		public Color DataColor
		{
			set
			{
                if (_datacolor != value)
                {
                    _datacolor = value;
                    //重定义颜色
                    _pendata.Color = value;
                    _brushdata.Dispose();
                    _brushdata = new SolidBrush(value);
                    //重画
                    Draw(true);
                }
            }
            get
            {
                return _datacolor;
            }
        }
        #endregion

        #region "选择区域颜色"
        /// <summary>
        /// 获取或设置选择区域的颜色
        /// </summary>
        public Color RegionColor
        {
            set
            {
                if (_regioncolor != value)
                {
                    _regioncolor = value;
                    //重定义颜色
                    _brushregion.Dispose();
                    _brushregion = new SolidBrush(value);
                    //重画
                    Draw(true);
                }
            }
            get
            {
                return _regioncolor;
            }
        }
        #endregion

        #region "网格颜色"
        /// <summary>
        /// 获取或设置网格的颜色
        /// </summary>
        public Color GridColor
        {
            set
            {
                if (_gridcolor != value)
                {
                    _gridcolor = value;
                    //重定义颜色
                    _pengrid.Color = value;
                    //重画
                    Draw(true);
                }
            }
            get
            {
                return _gridcolor;
            }
        }
        #endregion

        #region "选择线颜色"
        /// <summary>
        /// 获取或设置选择线的颜色
        /// </summary>
        public Color SelectLineColor
        {
            set
            {
                if (_selectlinecolor != value)
                {
                    _selectlinecolor = value;
                    //重定义颜色
                    _penselectline.Color = value;
                    //重画
                    Draw(true);
                }
            }
            get
            {
                return _selectlinecolor;
            }
        }
        #endregion

        #region "最大横坐标"
        /// <summary>
		/// 获取或设置最大横坐标
		/// </summary>
        public int MaxX
        {
            set
            {
                if (value != _maxX)
                {
                    _maxX = value;
                    if (_maxX > 1073741824)
                    {
                        _maxX = 1073741824;
                    }
                    if (_maxX > _minX)
                    {
                        int maxdrawx = Math.Min(_dataend, _maxX);
                        int mindrawx = Math.Max(_datastart, _minX);
                        int n = maxdrawx - mindrawx + 1;
                        //绘画点数
                        if (n < 0)
                        {
                            n = 0;
                        }
                        if (_p.Length != n + 2)
                        {
                            _p = new Point[n + 2];
                        }
                        //重画
                        Draw(true);
                    }
                }
            }
            get
            {
                return _maxX;
            }
        }
        #endregion

        #region "最小横坐标"