官网

http://www.hzhcontrols.com

前提

入行已经7,8年了，一直想做一套漂亮点的自定义控件，于是就有了本系列文章。

GitHub：https://github.com/kwwwvagaa/NetWinformControl

码云：https://gitee.com/kwwwvagaa/net_winform_custom_control.git

如果觉得写的还行，请点个 star 支持一下吧

欢迎前来交流探讨： 企鹅群568015492 

麻烦博客下方点个【推荐】，谢谢

NuGet

  1. Install-Package HZH_Controls

目录

https://www.cnblogs.com/bfyx/p/11364884.html

用处及效果

准备工作

请先了解GDI+和三角函数

开始

添加一个类UCValve，继承UserControl

添加一个阀门显示样式枚举

  1.  /// <summary>
  2.      /// Enum ValveStyle
  3.      /// </summary>
  4.      public enum ValveStyle
  5.      {
  6.          /// <summary>
  7.          /// 横向，开关在上方
  8.          /// </summary>
  9.          Horizontal_Top,
  10.          /// <summary>
  11.          /// 横向，开关在下方
  12.          /// </summary>
  13.          Horizontal_Bottom,
  14.          /// <summary>
  15.          /// 纵向，开关在左侧
  16.          /// </summary>
  17.          Vertical_Left,
  18.          /// <summary>
  19.          /// 纵向，开关在右侧
  20.          /// </summary>
  21.          Vertical_Right,
  22.      }

添加一些属性

  1.   /// <summary>
  2.          /// The valve style
  3.          /// </summary>
  4.          private ValveStyle valveStyle = ValveStyle.Horizontal_Top;
  5.  
  6.          /// <summary>
  7.          /// Gets or sets the valve style.
  8.          /// </summary>
  9.          /// <value>The valve style.</value>
  10.          [Description("阀门样式"), Category("自定义")]
  11.          public ValveStyle ValveStyle
  12.          {
  13.              get { return valveStyle; }
  14.              set
  15.              {
  16.                  valveStyle = value;
  17.                  Refresh();
  18.              }
  19.          }
  20.  
  21.          /// <summary>
  22.          /// The valve color
  23.          /// </summary>
  24.          private Color valveColor = Color.FromArgb(, , );
  25.  
  26.          /// <summary>
  27.          /// Gets or sets the color of the valve.
  28.          /// </summary>
  29.          /// <value>The color of the valve.</value>
  30.          [Description("阀门颜色"), Category("自定义")]
  31.          public Color ValveColor
  32.          {
  33.              get { return valveColor; }
  34.              set
  35.              {
  36.                  valveColor = value;
  37.                  Refresh();
  38.              }
  39.          }
  40.  
  41.          /// <summary>
  42.          /// The switch color
  43.          /// </summary>
  44.          private Color switchColor = Color.FromArgb(, , );
  45.  
  46.          /// <summary>
  47.          /// Gets or sets the color of the switch.
  48.          /// </summary>
  49.          /// <value>The color of the switch.</value>
  50.          [Description("开关把手颜色"), Category("自定义")]
  51.          public Color SwitchColor
  52.          {
  53.              get { return switchColor; }
  54.              set
  55.              {
  56.                  switchColor = value;
  57.                  Refresh();
  58.              }
  59.          }
  60.  
  61.          /// <summary>
  62.          /// The axis color
  63.          /// </summary>
  64.          private Color axisColor = Color.FromArgb(, , );
  65.  
  66.          /// <summary>
  67.          /// Gets or sets the color of the axis.
  68.          /// </summary>
  69.          /// <value>The color of the axis.</value>
  70.          [Description("轴颜色"), Category("自定义")]
  71.          public Color AxisColor
  72.          {
  73.              get { return axisColor; }
  74.              set
  75.              {
  76.                  axisColor = value;
  77.                  Refresh();
  78.              }
  79.          }
  80.  
  81.          /// <summary>
  82.          /// The asis bottom color
  83.          /// </summary>
  84.          private Color asisBottomColor = Color.FromArgb(, , );
  85.  
  86.          /// <summary>
  87.          /// Gets or sets the color of the asis bottom.
  88.          /// </summary>
  89.          /// <value>The color of the asis bottom.</value>
  90.          [Description("轴底座颜色"), Category("自定义")]
  91.          public Color AsisBottomColor
  92.          {
  93.              get { return asisBottomColor; }
  94.              set { asisBottomColor = value; }
  95.          }
  96.  
  97.          /// <summary>
  98.          /// The opened
  99.          /// </summary>
  100.          private bool opened = true;
  101.  
  102.          /// <summary>
  103.          /// Gets or sets a value indicating whether this <see cref="UCValve" /> is opened.
  104.          /// </summary>
  105.          /// <value><c>true</c> if opened; otherwise, <c>false</c>.</value>
  106.          [Description("是否打开"), Category("自定义")]
  107.          public bool Opened
  108.          {
  109.              get { return opened; }
  110.              set
  111.              {
  112.                  opened = value;
  113.                  Refresh();
  114.              }
  115.          }
  116.  
  117.          /// <summary>
  118.          /// The liquid direction
  119.          /// </summary>
  120.          private LiquidDirection liquidDirection = LiquidDirection.Forward;
  121.  
  122.          /// <summary>
  123.          /// Gets or sets the liquid direction.
  124.          /// </summary>
  125.          /// <value>The liquid direction.</value>
  126.          [Description("液体流动方向"), Category("自定义")]
  127.          public LiquidDirection LiquidDirection
  128.          {
  129.              get { return liquidDirection; }
  130.              set
  131.              {
  132.                  liquidDirection = value;
  133.                  if (value == Conduit.LiquidDirection.None)
  134.                      m_timer.Enabled = false;
  135.                  else
  136.                      m_timer.Enabled = true;
  137.                  Refresh();
  138.              }
  139.          }
  140.  
  141.          /// <summary>
  142.          /// The liquid speed
  143.          /// </summary>
  144.          private int liquidSpeed = ;
  145.  
  146.          /// <summary>
  147.          /// 液体流速，越小，速度越快Gets or sets the liquid speed.
  148.          /// </summary>
  149.          /// <value>The liquid speed.</value>
  150.          [Description("液体流速，越小，速度越快"), Category("自定义")]
  151.          public int LiquidSpeed
  152.          {
  153.              get { return liquidSpeed; }
  154.              set
  155.              {
  156.                  if (value <= )
  157.                      return;
  158.                  liquidSpeed = value;
  159.                  m_timer.Interval = value;
  160.              }
  161.          }
  162.  
  163.          /// <summary>
  164.          /// The liquid color
  165.          /// </summary>
  166.          private Color liquidColor = Color.FromArgb(, , );
  167.  
  168.          /// <summary>
  169.          /// Gets or sets the color of the liquid.
  170.          /// </summary>
  171.          /// <value>The color of the liquid.</value>
  172.          [Description("液体颜色"), Category("自定义")]
  173.          public Color LiquidColor
  174.          {
  175.              get { return liquidColor; }
  176.              set
  177.              {
  178.                  liquidColor = value;
  179.                  if (liquidDirection != Conduit.LiquidDirection.None)
  180.                      Refresh();
  181.              }
  182.          }
  183.          /// <summary>
  184.          /// The m timer
  185.          /// </summary>
  186.          Timer m_timer;
  187.          /// <summary>
  188.          /// The int line left
  189.          /// </summary>
  190.          int intLineLeft = ;

重绘

  1.   protected override void OnPaint(PaintEventArgs e)
  2.          {
  3.              base.OnPaint(e);
  4.              var g = e.Graphics;
  5.              Rectangle rectGuan = Rectangle.Empty;//管道
  6.              Rectangle rectJK1 = Rectangle.Empty;//接口1
  7.              Rectangle rectJK2 = Rectangle.Empty;//接口2
  8.              Rectangle rectZ = Rectangle.Empty;//轴
  9.              GraphicsPath linePath = new GraphicsPath();//管道中心线
  10.              GraphicsPath dzPath = new GraphicsPath();//轴底座
  11.              GraphicsPath bsPath = new GraphicsPath();//开关把手
  12.              switch (valveStyle)
  13.              {
  14.                  case ValveStyle.Horizontal_Top:
  15.                      rectGuan = new Rectangle(, this.Height / , this.Width, this.Height /  - this.Height / );
  16.                      rectJK1 = new Rectangle(this.Height / , rectGuan.Top - this.Height / , rectGuan.Height / , rectGuan.Height + this.Height / );
  17.                      rectJK2 = new Rectangle(rectGuan.Right - this.Height /  - rectGuan.Height / , rectGuan.Top - this.Height / , rectGuan.Height / , rectGuan.Height + this.Height / );
  18.                      linePath.AddLine(new Point(rectGuan.Left - , rectGuan.Top + rectGuan.Height / ), new Point(rectGuan.Right + , rectGuan.Top + rectGuan.Height / ));
  19.                      rectZ = new Rectangle(rectGuan.Left + (rectGuan.Width - rectGuan.Height / ) / , , rectGuan.Height / , rectGuan.Top - );
  20.                      Point[] psTop = new Point[]
  21.                      {
  22.                          new Point(rectGuan.Left+(rectGuan.Width-rectGuan.Height/)/,rectGuan.Top- this.Height / -  ),
  23.                          new Point(rectGuan.Right-(rectGuan.Width-rectGuan.Height/)/,rectGuan.Top- this.Height / -  ),
  24.                          new Point(rectGuan.Right-(rectGuan.Width-rectGuan.Height)/,rectGuan.Top+ ),
  25.                          new Point(rectGuan.Left+(rectGuan.Width-rectGuan.Height)/,rectGuan.Top +),
  26.                      };
  27.                      dzPath.AddLines(psTop);
  28.                      dzPath.CloseAllFigures();
  29.                      if (opened)
  30.                      {
  31.                          bsPath.AddLine(rectGuan.Left + (rectGuan.Width - rectGuan.Height - ) / ,  + (rectGuan.Height / ) / , rectGuan.Left + (rectGuan.Width - rectGuan.Height - ) /  + rectGuan.Height + ,  + (rectGuan.Height / ) / );
  32.                      }
  33.                      else
  34.                      {
  35.                          bsPath.AddLine(new Point(rectGuan.Left + rectGuan.Width /  - , ), new Point(rectGuan.Left + rectGuan.Width /  + , rectGuan.Height + ));
  36.                      }
  37.                      break;
  38.                  case ValveStyle.Horizontal_Bottom:
  39.                      rectGuan = new Rectangle(, this.Height / , this.Width, this.Height /  - this.Height / );
  40.                      rectJK1 = new Rectangle(this.Height / , rectGuan.Top - this.Height / , rectGuan.Height / , rectGuan.Height + this.Height / );
  41.                      rectJK2 = new Rectangle(rectGuan.Right - this.Height /  - rectGuan.Height / , rectGuan.Top - this.Height / , rectGuan.Height / , rectGuan.Height + this.Height / );
  42.                      linePath.AddLine(new Point(rectGuan.Left - , rectGuan.Top + rectGuan.Height / ), new Point(rectGuan.Right + , rectGuan.Top + rectGuan.Height / ));
  43.                      rectZ = new Rectangle(rectGuan.Left + (rectGuan.Width - rectGuan.Height / ) / , rectGuan.Bottom + , rectGuan.Height / , this.Height -  - (rectGuan.Bottom + ));
  44.                      Point[] psBottom = new Point[]
  45.                      {
  46.                          new Point(rectGuan.Left+(rectGuan.Width-rectGuan.Height/)/,rectGuan.Bottom+ this.Height / +  ),
  47.                          new Point(rectGuan.Right-(rectGuan.Width-rectGuan.Height/)/,rectGuan.Bottom+ this.Height / +  ),
  48.                          new Point(rectGuan.Right-(rectGuan.Width-rectGuan.Height)/,rectGuan.Bottom- ),
  49.                          new Point(rectGuan.Left+(rectGuan.Width-rectGuan.Height)/,rectGuan.Bottom-),
  50.                      };
  51.                      dzPath.AddLines(psBottom);
  52.                      dzPath.CloseAllFigures();
  53.                      if (opened)
  54.                      {
  55.                          bsPath.AddLine(rectGuan.Left + (rectGuan.Width - rectGuan.Height - ) / , this.Height - ( + (rectGuan.Height / ) / ), rectGuan.Left + (rectGuan.Width - rectGuan.Height - ) /  + rectGuan.Height + , this.Height - ( + (rectGuan.Height / ) / ));
  56.                      }
  57.                      else
  58.                      {
  59.                          bsPath.AddLine(new Point(rectGuan.Left + rectGuan.Width /  - , this.Height - ), new Point(rectGuan.Left + rectGuan.Width /  + , this.Height - (rectGuan.Height + )));
  60.                      }
  61.                      break;
  62.                  case ValveStyle.Vertical_Left:
  63.                      rectGuan = new Rectangle(this.Width / , , this.Width /  - this.Width / , this.Height);
  64.                      rectJK1 = new Rectangle(, this.Width / , rectGuan.Width + this.Width / , rectGuan.Width / );
  65.                      rectJK2 = new Rectangle(, this.Height - this.Width /  - rectGuan.Width / , rectGuan.Width + this.Width / , rectGuan.Width / );
  66.                      linePath.AddLine(new Point(rectGuan.Left + rectGuan.Width / , rectGuan.Top - ), new Point(rectGuan.Left + rectGuan.Width / , rectGuan.Bottom + ));
  67.                      rectZ = new Rectangle(rectGuan.Right, rectGuan.Top + (rectGuan.Height - rectGuan.Width / ) / , rectGuan.Right - , rectGuan.Width / );
  68.                      Point[] psLeft = new Point[]
  69.                      {
  70.                          new Point(rectGuan.Right+ this.Width / +  ,rectGuan.Top + (rectGuan.Height - rectGuan.Width / ) / ),
  71.                          new Point(rectGuan.Right+ this.Width / +  ,rectGuan.Top + (rectGuan.Height - rectGuan.Width / ) / +rectGuan.Width / ),
  72.                          new Point(rectGuan.Right-, rectGuan.Top +(rectGuan.Height-rectGuan.Width)/+rectGuan.Width),
  73.                          new Point(rectGuan.Right-, rectGuan.Top +(rectGuan.Height-rectGuan.Width)/),
  74.                      };
  75.                      dzPath.AddLines(psLeft);
  76.                      dzPath.CloseAllFigures();
  77.                      if (opened)
  78.                      {
  79.                          bsPath.AddLine(this.Width - ( + (rectGuan.Width / ) / ), rectGuan.Top + (rectGuan.Height - rectGuan.Width - ) / , this.Width - ( + (rectGuan.Width / ) / ), rectGuan.Top + (rectGuan.Height - rectGuan.Width - ) /  + rectGuan.Width + );
  80.                      }
  81.                      else
  82.                      {
  83.                          bsPath.AddLine(new Point(this.Width - , rectGuan.Top + rectGuan.Height /  - ), new Point(this.Width - (rectGuan.Width + ), rectGuan.Top + rectGuan.Height /  + ));
  84.                      }
  85.                      break;
  86.                  case ValveStyle.Vertical_Right:
  87.                      rectGuan = new Rectangle(this.Width - this.Width /  - (this.Width /  - this.Width / ), , this.Width /  - this.Width / , this.Height);
  88.                      rectJK1 = new Rectangle(this.Width - (rectGuan.Width + this.Width / ), this.Width / , rectGuan.Width + this.Width / , rectGuan.Width / );
  89.                      rectJK2 = new Rectangle(this.Width - (rectGuan.Width + this.Width / ), this.Height - this.Width /  - rectGuan.Width / , rectGuan.Width + this.Width / , rectGuan.Width / );
  90.                      linePath.AddLine(new Point(rectGuan.Left + rectGuan.Width / , rectGuan.Top - ), new Point(rectGuan.Left + rectGuan.Width / , rectGuan.Bottom + ));
  91.                      rectZ = new Rectangle(, rectGuan.Top + (rectGuan.Height - rectGuan.Width / ) / , rectGuan.Left-, rectGuan.Width / );
  92.                      Point[] psRight = new Point[]
  93.                      {
  94.                          new Point(rectGuan.Left- (this.Width / + ) ,rectGuan.Top + (rectGuan.Height - rectGuan.Width / ) / ),
  95.                          new Point(rectGuan.Left-( this.Width / + ) ,rectGuan.Top + (rectGuan.Height - rectGuan.Width / ) / +rectGuan.Width / ),
  96.                          new Point(rectGuan.Left+, rectGuan.Top +(rectGuan.Height-rectGuan.Width)/+rectGuan.Width),
  97.                          new Point(rectGuan.Left+, rectGuan.Top +(rectGuan.Height-rectGuan.Width)/),
  98.                      };
  99.                      dzPath.AddLines(psRight);
  100.                      dzPath.CloseAllFigures();
  101.  
  102.                      if (opened)
  103.                      {
  104.                          bsPath.AddLine( ( + (rectGuan.Width / ) / ), rectGuan.Top + (rectGuan.Height - rectGuan.Width - ) / , ( + (rectGuan.Width / ) / ), rectGuan.Top + (rectGuan.Height - rectGuan.Width - ) /  + rectGuan.Width + );
  105.                      }
  106.                      else
  107.                      {
  108.                          bsPath.AddLine(new Point( , rectGuan.Top + rectGuan.Height /  - ), new Point( (rectGuan.Width + ), rectGuan.Top + rectGuan.Height /  + ));
  109.                      }
  110.                      break;
  111.              }
  112.  
  113.              //管道
  114.              g.FillRectangle(new SolidBrush(valveColor), rectGuan);
  115.              //接口
  116.              g.FillRectangle(new SolidBrush(valveColor), rectJK1);
  117.              g.FillRectangle(new SolidBrush(Color.FromArgb(, Color.White)), rectJK1);
  118.              g.FillRectangle(new SolidBrush(valveColor), rectJK2);
  119.              g.FillRectangle(new SolidBrush(Color.FromArgb(, Color.White)), rectJK2);
  120.  
  121.              //高亮
  122.              int intCount = (valveStyle.ToString().StartsWith("H") ? rectGuan.Height : rectGuan.Width) /  / ;
  123.              for (int i = ; i < intCount; i++)
  124.              {
  125.                  int _penWidth = (valveStyle.ToString().StartsWith("H") ? rectGuan.Height : rectGuan.Width) /  -  * i;
  126.                  if (_penWidth <= )
  127.                      _penWidth = ;
  128.                  g.DrawPath(new Pen(new SolidBrush(Color.FromArgb(, Color.White.R, Color.White.G, Color.White.B)), _penWidth), linePath);
  129.                  if (_penWidth == )
  130.                      break;
  131.              }
  132.  
  133.              g.SetGDIHigh();
  134.              //轴
  135.              g.FillRectangle(new SolidBrush(axisColor), rectZ);
  136.  
  137.              //阀门底座
  138.              g.FillPath(new SolidBrush(asisBottomColor), dzPath);
  139.              g.FillPath(new SolidBrush(Color.FromArgb(, Color.White)), dzPath);
  140.  
  141.              //把手
  142.              g.DrawPath(new Pen(new SolidBrush(switchColor), (valveStyle.ToString().StartsWith("H") ? rectGuan.Height : rectGuan.Width) / ), bsPath);
  143.  
  144.              //液体流动
  145.              if (opened)
  146.              {
  147.                  Pen p = new Pen(new SolidBrush(liquidColor), );
  148.                  p.DashPattern = new float[] { ,  };
  149.                  p.DashOffset = intLineLeft * (LiquidDirection == Conduit.LiquidDirection.Forward ? - : );
  150.                  g.DrawPath(p, linePath);
  151.              }
  152.          }

全部代码

  1.  // ***********************************************************************
  2.  // Assembly         : HZH_Controls
  3.  // Created          : 2019-09-06
  4.  //
  5.  // ***********************************************************************
  6.  // <copyright file="UCValve.cs">
  7.  //     Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com
  8.  // </copyright>
  9.  //
  10.  // Blog: https://www.cnblogs.com/bfyx
  11.  // GitHub：https://github.com/kwwwvagaa/NetWinformControl
  12.  // gitee：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
  13.  //
  14.  // If you use this code, please keep this note.
  15.  // ***********************************************************************
  16.  using System;
  17.  using System.Collections.Generic;
  18.  using System.Linq;
  19.  using System.Text;
  20.  using System.Windows.Forms;
  21.  using System.Drawing;
  22.  using System.Drawing.Drawing2D;
  23.  using HZH_Controls.Controls.Conduit;
  24.  using System.ComponentModel;
  25.  
  26.  namespace HZH_Controls.Controls
  27.  {
  28.      /// <summary>
  29.      /// Class UCValve.
  30.      /// Implements the <see cref="System.Windows.Forms.UserControl" />
  31.      /// </summary>
  32.      /// <seealso cref="System.Windows.Forms.UserControl" />
  33.      public class UCValve : UserControl
  34.      {
  35.          /// <summary>
  36.          /// The valve style
  37.          /// </summary>
  38.          private ValveStyle valveStyle = ValveStyle.Horizontal_Top;
  39.  
  40.          /// <summary>
  41.          /// Gets or sets the valve style.
  42.          /// </summary>
  43.          /// <value>The valve style.</value>
  44.          [Description("阀门样式"), Category("自定义")]
  45.          public ValveStyle ValveStyle
  46.          {
  47.              get { return valveStyle; }
  48.              set
  49.              {
  50.                  valveStyle = value;
  51.                  Refresh();
  52.              }
  53.          }
  54.  
  55.          /// <summary>
  56.          /// The valve color
  57.          /// </summary>
  58.          private Color valveColor = Color.FromArgb(, , );
  59.  
  60.          /// <summary>
  61.          /// Gets or sets the color of the valve.
  62.          /// </summary>
  63.          /// <value>The color of the valve.</value>
  64.          [Description("阀门颜色"), Category("自定义")]
  65.          public Color ValveColor
  66.          {
  67.              get { return valveColor; }
  68.              set
  69.              {
  70.                  valveColor = value;
  71.                  Refresh();
  72.              }
  73.          }
  74.  
  75.          /// <summary>
  76.          /// The switch color
  77.          /// </summary>
  78.          private Color switchColor = Color.FromArgb(, , );
  79.  
  80.          /// <summary>
  81.          /// Gets or sets the color of the switch.
  82.          /// </summary>
  83.          /// <value>The color of the switch.</value>
  84.          [Description("开关把手颜色"), Category("自定义")]
  85.          public Color SwitchColor
  86.          {
  87.              get { return switchColor; }
  88.              set
  89.              {
  90.                  switchColor = value;
  91.                  Refresh();
  92.              }
  93.          }
  94.  
  95.          /// <summary>
  96.          /// The axis color
  97.          /// </summary>
  98.          private Color axisColor = Color.FromArgb(, , );
  99.  
  100.          /// <summary>
  101.          /// Gets or sets the color of the axis.
  102.          /// </summary>
  103.          /// <value>The color of the axis.</value>
  104.          [Description("轴颜色"), Category("自定义")]
  105.          public Color AxisColor
  106.          {
  107.              get { return axisColor; }
  108.              set
  109.              {
  110.                  axisColor = value;
  111.                  Refresh();
  112.              }
  113.          }
  114.  
  115.          /// <summary>
  116.          /// The asis bottom color
  117.          /// </summary>
  118.          private Color asisBottomColor = Color.FromArgb(, , );
  119.  
  120.          /// <summary>
  121.          /// Gets or sets the color of the asis bottom.
  122.          /// </summary>
  123.          /// <value>The color of the asis bottom.</value>
  124.          [Description("轴底座颜色"), Category("自定义")]
  125.          public Color AsisBottomColor
  126.          {
  127.              get { return asisBottomColor; }
  128.              set { asisBottomColor = value; }
  129.          }
  130.  
  131.          /// <summary>
  132.          /// The opened
  133.          /// </summary>
  134.          private bool opened = true;
  135.  
  136.          /// <summary>
  137.          /// Gets or sets a value indicating whether this <see cref="UCValve" /> is opened.
  138.          /// </summary>
  139.          /// <value><c>true</c> if opened; otherwise, <c>false</c>.</value>
  140.          [Description("是否打开"), Category("自定义")]
  141.          public bool Opened
  142.          {
  143.              get { return opened; }
  144.              set
  145.              {
  146.                  opened = value;
  147.                  Refresh();
  148.              }
  149.          }
  150.  
  151.          /// <summary>
  152.          /// The liquid direction
  153.          /// </summary>
  154.          private LiquidDirection liquidDirection = LiquidDirection.Forward;
  155.  
  156.          /// <summary>
  157.          /// Gets or sets the liquid direction.
  158.          /// </summary>
  159.          /// <value>The liquid direction.</value>
  160.          [Description("液体流动方向"), Category("自定义")]
  161.          public LiquidDirection LiquidDirection
  162.          {
  163.              get { return liquidDirection; }
  164.              set
  165.              {
  166.                  liquidDirection = value;
  167.                  if (value == Conduit.LiquidDirection.None)
  168.                      m_timer.Enabled = false;
  169.                  else
  170.                      m_timer.Enabled = true;
  171.                  Refresh();
  172.              }
  173.          }
  174.  
  175.          /// <summary>
  176.          /// The liquid speed
  177.          /// </summary>
  178.          private int liquidSpeed = ;
  179.  
  180.          /// <summary>
  181.          /// 液体流速，越小，速度越快Gets or sets the liquid speed.
  182.          /// </summary>
  183.          /// <value>The liquid speed.</value>
  184.          [Description("液体流速，越小，速度越快"), Category("自定义")]
  185.          public int LiquidSpeed
  186.          {
  187.              get { return liquidSpeed; }
  188.              set
  189.              {
  190.                  if (value <= )
  191.                      return;
  192.                  liquidSpeed = value;
  193.                  m_timer.Interval = value;
  194.              }
  195.          }
  196.  
  197.          /// <summary>
  198.          /// The liquid color
  199.          /// </summary>
  200.          private Color liquidColor = Color.FromArgb(, , );
  201.  
  202.          /// <summary>
  203.          /// Gets or sets the color of the liquid.
  204.          /// </summary>
  205.          /// <value>The color of the liquid.</value>
  206.          [Description("液体颜色"), Category("自定义")]
  207.          public Color LiquidColor
  208.          {
  209.              get { return liquidColor; }
  210.              set
  211.              {
  212.                  liquidColor = value;
  213.                  if (liquidDirection != Conduit.LiquidDirection.None)
  214.                      Refresh();
  215.              }
  216.          }
  217.          /// <summary>
  218.          /// The m timer
  219.          /// </summary>
  220.          Timer m_timer;
  221.          /// <summary>
  222.          /// The int line left
  223.          /// </summary>
  224.          int intLineLeft = ;
  225.  
  226.          /// <summary>
  227.          /// Initializes a new instance of the <see cref="UCValve" /> class.
  228.          /// </summary>
  229.          public UCValve()
  230.          {
  231.              this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
  232.              this.SetStyle(ControlStyles.DoubleBuffer, true);
  233.              this.SetStyle(ControlStyles.ResizeRedraw, true);
  234.              this.SetStyle(ControlStyles.Selectable, true);
  235.              this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
  236.              this.SetStyle(ControlStyles.UserPaint, true);
  237.              this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;
  238.              this.Size = new Size(, );
  239.              m_timer = new Timer();
  240.              m_timer.Interval = ;
  241.              m_timer.Tick += timer_Tick;
  242.              m_timer.Enabled = true;
  243.          }
  244.  
  245.          /// <summary>
  246.          /// Handles the Tick event of the timer control.
  247.          /// </summary>
  248.          /// <param name="sender">The source of the event.</param>
  249.          /// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
  250.          void timer_Tick(object sender, EventArgs e)
  251.          {
  252.              intLineLeft += ;
  253.              if (intLineLeft > )
  254.                  intLineLeft = ;
  255.              Refresh();
  256.          }
  257.  
  258.          /// <summary>
  259.          /// 引发 <see cref="E:System.Windows.Forms.Control.Paint" /> 事件。
  260.          /// </summary>
  261.          /// <param name="e">包含事件数据的 <see cref="T:System.Windows.Forms.PaintEventArgs" />。</param>
  262.          protected override void OnPaint(PaintEventArgs e)
  263.          {
  264.              base.OnPaint(e);
  265.              var g = e.Graphics;
  266.              Rectangle rectGuan = Rectangle.Empty;//管道
  267.              Rectangle rectJK1 = Rectangle.Empty;//接口1
  268.              Rectangle rectJK2 = Rectangle.Empty;//接口2
  269.              Rectangle rectZ = Rectangle.Empty;//轴
  270.              GraphicsPath linePath = new GraphicsPath();//管道中心线
  271.              GraphicsPath dzPath = new GraphicsPath();//轴底座
  272.              GraphicsPath bsPath = new GraphicsPath();//开关把手
  273.              switch (valveStyle)
  274.              {
  275.                  case ValveStyle.Horizontal_Top:
  276.                      rectGuan = new Rectangle(, this.Height / , this.Width, this.Height /  - this.Height / );
  277.                      rectJK1 = new Rectangle(this.Height / , rectGuan.Top - this.Height / , rectGuan.Height / , rectGuan.Height + this.Height / );
  278.                      rectJK2 = new Rectangle(rectGuan.Right - this.Height /  - rectGuan.Height / , rectGuan.Top - this.Height / , rectGuan.Height / , rectGuan.Height + this.Height / );
  279.                      linePath.AddLine(new Point(rectGuan.Left - , rectGuan.Top + rectGuan.Height / ), new Point(rectGuan.Right + , rectGuan.Top + rectGuan.Height / ));
  280.                      rectZ = new Rectangle(rectGuan.Left + (rectGuan.Width - rectGuan.Height / ) / , , rectGuan.Height / , rectGuan.Top - );
  281.                      Point[] psTop = new Point[]
  282.                      {
  283.                          new Point(rectGuan.Left+(rectGuan.Width-rectGuan.Height/)/,rectGuan.Top- this.Height / -  ),
  284.                          new Point(rectGuan.Right-(rectGuan.Width-rectGuan.Height/)/,rectGuan.Top- this.Height / -  ),
  285.                          new Point(rectGuan.Right-(rectGuan.Width-rectGuan.Height)/,rectGuan.Top+ ),
  286.                          new Point(rectGuan.Left+(rectGuan.Width-rectGuan.Height)/,rectGuan.Top +),
  287.                      };
  288.                      dzPath.AddLines(psTop);
  289.                      dzPath.CloseAllFigures();
  290.                      if (opened)
  291.                      {
  292.                          bsPath.AddLine(rectGuan.Left + (rectGuan.Width - rectGuan.Height - ) / ,  + (rectGuan.Height / ) / , rectGuan.Left + (rectGuan.Width - rectGuan.Height - ) /  + rectGuan.Height + ,  + (rectGuan.Height / ) / );
  293.                      }
  294.                      else
  295.                      {
  296.                          bsPath.AddLine(new Point(rectGuan.Left + rectGuan.Width /  - , ), new Point(rectGuan.Left + rectGuan.Width /  + , rectGuan.Height + ));
  297.                      }
  298.                      break;
  299.                  case ValveStyle.Horizontal_Bottom:
  300.                      rectGuan = new Rectangle(, this.Height / , this.Width, this.Height /  - this.Height / );
  301.                      rectJK1 = new Rectangle(this.Height / , rectGuan.Top - this.Height / , rectGuan.Height / , rectGuan.Height + this.Height / );
  302.                      rectJK2 = new Rectangle(rectGuan.Right - this.Height /  - rectGuan.Height / , rectGuan.Top - this.Height / , rectGuan.Height / , rectGuan.Height + this.Height / );
  303.                      linePath.AddLine(new Point(rectGuan.Left - , rectGuan.Top + rectGuan.Height / ), new Point(rectGuan.Right + , rectGuan.Top + rectGuan.Height / ));
  304.                      rectZ = new Rectangle(rectGuan.Left + (rectGuan.Width - rectGuan.Height / ) / , rectGuan.Bottom + , rectGuan.Height / , this.Height -  - (rectGuan.Bottom + ));
  305.                      Point[] psBottom = new Point[]
  306.                      {
  307.                          new Point(rectGuan.Left+(rectGuan.Width-rectGuan.Height/)/,rectGuan.Bottom+ this.Height / +  ),
  308.                          new Point(rectGuan.Right-(rectGuan.Width-rectGuan.Height/)/,rectGuan.Bottom+ this.Height / +  ),
  309.                          new Point(rectGuan.Right-(rectGuan.Width-rectGuan.Height)/,rectGuan.Bottom- ),
  310.                          new Point(rectGuan.Left+(rectGuan.Width-rectGuan.Height)/,rectGuan.Bottom-),
  311.                      };
  312.                      dzPath.AddLines(psBottom);
  313.                      dzPath.CloseAllFigures();
  314.                      if (opened)
  315.                      {
  316.                          bsPath.AddLine(rectGuan.Left + (rectGuan.Width - rectGuan.Height - ) / , this.Height - ( + (rectGuan.Height / ) / ), rectGuan.Left + (rectGuan.Width - rectGuan.Height - ) /  + rectGuan.Height + , this.Height - ( + (rectGuan.Height / ) / ));
  317.                      }
  318.                      else
  319.                      {
  320.                          bsPath.AddLine(new Point(rectGuan.Left + rectGuan.Width /  - , this.Height - ), new Point(rectGuan.Left + rectGuan.Width /  + , this.Height - (rectGuan.Height + )));
  321.                      }
  322.                      break;
  323.                  case ValveStyle.Vertical_Left:
  324.                      rectGuan = new Rectangle(this.Width / , , this.Width /  - this.Width / , this.Height);
  325.                      rectJK1 = new Rectangle(, this.Width / , rectGuan.Width + this.Width / , rectGuan.Width / );
  326.                      rectJK2 = new Rectangle(, this.Height - this.Width /  - rectGuan.Width / , rectGuan.Width + this.Width / , rectGuan.Width / );
  327.                      linePath.AddLine(new Point(rectGuan.Left + rectGuan.Width / , rectGuan.Top - ), new Point(rectGuan.Left + rectGuan.Width / , rectGuan.Bottom + ));
  328.                      rectZ = new Rectangle(rectGuan.Right, rectGuan.Top + (rectGuan.Height - rectGuan.Width / ) / , rectGuan.Right - , rectGuan.Width / );
  329.                      Point[] psLeft = new Point[]
  330.                      {
  331.                          new Point(rectGuan.Right+ this.Width / +  ,rectGuan.Top + (rectGuan.Height - rectGuan.Width / ) / ),
  332.                          new Point(rectGuan.Right+ this.Width / +  ,rectGuan.Top + (rectGuan.Height - rectGuan.Width / ) / +rectGuan.Width / ),
  333.                          new Point(rectGuan.Right-, rectGuan.Top +(rectGuan.Height-rectGuan.Width)/+rectGuan.Width),
  334.                          new Point(rectGuan.Right-, rectGuan.Top +(rectGuan.Height-rectGuan.Width)/),
  335.                      };
  336.                      dzPath.AddLines(psLeft);
  337.                      dzPath.CloseAllFigures();
  338.                      if (opened)
  339.                      {
  340.                          bsPath.AddLine(this.Width - ( + (rectGuan.Width / ) / ), rectGuan.Top + (rectGuan.Height - rectGuan.Width - ) / , this.Width - ( + (rectGuan.Width / ) / ), rectGuan.Top + (rectGuan.Height - rectGuan.Width - ) /  + rectGuan.Width + );
  341.                      }
  342.                      else
  343.                      {
  344.                          bsPath.AddLine(new Point(this.Width - , rectGuan.Top + rectGuan.Height /  - ), new Point(this.Width - (rectGuan.Width + ), rectGuan.Top + rectGuan.Height /  + ));
  345.                      }
  346.                      break;
  347.                  case ValveStyle.Vertical_Right:
  348.                      rectGuan = new Rectangle(this.Width - this.Width /  - (this.Width /  - this.Width / ), , this.Width /  - this.Width / , this.Height);
  349.                      rectJK1 = new Rectangle(this.Width - (rectGuan.Width + this.Width / ), this.Width / , rectGuan.Width + this.Width / , rectGuan.Width / );
  350.                      rectJK2 = new Rectangle(this.Width - (rectGuan.Width + this.Width / ), this.Height - this.Width /  - rectGuan.Width / , rectGuan.Width + this.Width / , rectGuan.Width / );
  351.                      linePath.AddLine(new Point(rectGuan.Left + rectGuan.Width / , rectGuan.Top - ), new Point(rectGuan.Left + rectGuan.Width / , rectGuan.Bottom + ));
  352.                      rectZ = new Rectangle(, rectGuan.Top + (rectGuan.Height - rectGuan.Width / ) / , rectGuan.Left-, rectGuan.Width / );
  353.                      Point[] psRight = new Point[]
  354.                      {
  355.                          new Point(rectGuan.Left- (this.Width / + ) ,rectGuan.Top + (rectGuan.Height - rectGuan.Width / ) / ),
  356.                          new Point(rectGuan.Left-( this.Width / + ) ,rectGuan.Top + (rectGuan.Height - rectGuan.Width / ) / +rectGuan.Width / ),
  357.                          new Point(rectGuan.Left+, rectGuan.Top +(rectGuan.Height-rectGuan.Width)/+rectGuan.Width),
  358.                          new Point(rectGuan.Left+, rectGuan.Top +(rectGuan.Height-rectGuan.Width)/),
  359.                      };
  360.                      dzPath.AddLines(psRight);
  361.                      dzPath.CloseAllFigures();
  362.  
  363.                      if (opened)
  364.                      {
  365.                          bsPath.AddLine( ( + (rectGuan.Width / ) / ), rectGuan.Top + (rectGuan.Height - rectGuan.Width - ) / , ( + (rectGuan.Width / ) / ), rectGuan.Top + (rectGuan.Height - rectGuan.Width - ) /  + rectGuan.Width + );
  366.                      }
  367.                      else
  368.                      {
  369.                          bsPath.AddLine(new Point( , rectGuan.Top + rectGuan.Height /  - ), new Point( (rectGuan.Width + ), rectGuan.Top + rectGuan.Height /  + ));
  370.                      }
  371.                      break;
  372.              }
  373.  
  374.              //管道
  375.              g.FillRectangle(new SolidBrush(valveColor), rectGuan);
  376.              //接口
  377.              g.FillRectangle(new SolidBrush(valveColor), rectJK1);
  378.              g.FillRectangle(new SolidBrush(Color.FromArgb(, Color.White)), rectJK1);
  379.              g.FillRectangle(new SolidBrush(valveColor), rectJK2);
  380.              g.FillRectangle(new SolidBrush(Color.FromArgb(, Color.White)), rectJK2);
  381.  
  382.              //高亮
  383.              int intCount = (valveStyle.ToString().StartsWith("H") ? rectGuan.Height : rectGuan.Width) /  / ;
  384.              for (int i = ; i < intCount; i++)
  385.              {
  386.                  int _penWidth = (valveStyle.ToString().StartsWith("H") ? rectGuan.Height : rectGuan.Width) /  -  * i;
  387.                  if (_penWidth <= )
  388.                      _penWidth = ;
  389.                  g.DrawPath(new Pen(new SolidBrush(Color.FromArgb(, Color.White.R, Color.White.G, Color.White.B)), _penWidth), linePath);
  390.                  if (_penWidth == )
  391.                      break;
  392.              }
  393.  
  394.              g.SetGDIHigh();
  395.              //轴
  396.              g.FillRectangle(new SolidBrush(axisColor), rectZ);
  397.  
  398.              //阀门底座
  399.              g.FillPath(new SolidBrush(asisBottomColor), dzPath);
  400.              g.FillPath(new SolidBrush(Color.FromArgb(, Color.White)), dzPath);
  401.  
  402.              //把手
  403.              g.DrawPath(new Pen(new SolidBrush(switchColor), (valveStyle.ToString().StartsWith("H") ? rectGuan.Height : rectGuan.Width) / ), bsPath);
  404.  
  405.              //液体流动
  406.              if (opened)
  407.              {
  408.                  Pen p = new Pen(new SolidBrush(liquidColor), );
  409.                  p.DashPattern = new float[] { ,  };
  410.                  p.DashOffset = intLineLeft * (LiquidDirection == Conduit.LiquidDirection.Forward ? - : );
  411.                  g.DrawPath(p, linePath);
  412.              }
  413.          }
  414.      }
  415.  
  416.      /// <summary>
  417.      /// Enum ValveStyle
  418.      /// </summary>
  419.      public enum ValveStyle
  420.      {
  421.          /// <summary>
  422.          /// 横向，开关在上方
  423.          /// </summary>
  424.          Horizontal_Top,
  425.          /// <summary>
  426.          /// 横向，开关在下方
  427.          /// </summary>
  428.          Horizontal_Bottom,
  429.          /// <summary>
  430.          /// 纵向，开关在左侧
  431.          /// </summary>
  432.          Vertical_Left,
  433.          /// <summary>
  434.          /// 纵向，开关在右侧
  435.          /// </summary>
  436.          Vertical_Right,
  437.      }
  438.  }

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