（四十四）c#Winform自定义控件-水波-HZHControls

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

Install-Package HZH_Controls

目录

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

用处及效果

准备工作

这个用的GDI+画的，如果不了解，可以百度一下。

开始

添加一个类 UCWave ，继承Control

定义属性

 private Color m_waveColor = Color.FromArgb(, , );

         [Description("波纹颜色"), Category("自定义")]
         public Color WaveColor
         {
             get { return m_waveColor; }
             set { m_waveColor = value; }
         }

         private int m_waveWidth = ;
         /// <summary>
         /// 为方便计算，强制使用10的倍数
         /// </summary>
         [Description("波纹宽度（为方便计算，强制使用10的倍数）"), Category("自定义")]
         public int WaveWidth
         {
             get { return m_waveWidth; }
             set
             {
                 m_waveWidth = value;
                 m_waveWidth = m_waveWidth /  * ;
                 intLeftX = value * -;
             }
         }

         private int m_waveHeight = ;
         /// <summary>
         /// 波高
         /// </summary>
         [Description("波高"), Category("自定义")]
         public int WaveHeight
         {
             get { return m_waveHeight; }
             set { m_waveHeight = value; }
         }

         private int m_waveSleep = ;
         /// <summary>
         /// 波运行速度（运行时间间隔，毫秒）
         /// </summary>
         [Description("波运行速度（运行时间间隔，毫秒）"), Category("自定义")]
         public int WaveSleep
         {
             get { return m_waveSleep; }
             set
             {
                 if (value <= )
                     return;
                 m_waveSleep = value;
                 if (timer != null)
                 {
                     timer.Enabled = false;
                     timer.Interval = value;
                     timer.Enabled = true;
                 }
             }
         }

         Timer timer = new Timer();
         int intLeftX = -;

重绘

 protected override void OnPaint(PaintEventArgs e)
         {
             base.OnPaint(e);
             var g = e.Graphics;
             g.SetGDIHigh();
             List<Point> lst1 = new List<Point>();
             List<Point> lst2 = new List<Point>();
             int m_intX = intLeftX;
             while (true)
             {
                 lst1.Add(new Point(m_intX, ));
                 lst1.Add(new Point(m_intX + m_waveWidth / , m_waveHeight));

                 lst2.Add(new Point(m_intX + m_waveWidth / , ));
                 lst2.Add(new Point(m_intX + m_waveWidth /  + m_waveWidth / , m_waveHeight));
                 m_intX += m_waveWidth;
                 if (m_intX > this.Width + m_waveWidth)
                     break;
             }

             GraphicsPath path1 = new GraphicsPath();
             path1.AddCurve(lst1.ToArray(), 0.5F);
             path1.AddLine(this.Width + , -, this.Width + , this.Height);
             path1.AddLine(this.Width + , this.Height, -, this.Height);
             path1.AddLine(-, this.Height, -, -);

             GraphicsPath path2 = new GraphicsPath();
             path2.AddCurve(lst2.ToArray(), 0.5F);
             path2.AddLine(this.Width + , -, this.Width + , this.Height);
             path2.AddLine(this.Width + , this.Height, -, this.Height);
             path2.AddLine(-, this.Height, -, -);

             g.FillPath(new SolidBrush(Color.FromArgb(, m_waveColor.R, m_waveColor.G, m_waveColor.B)), path1);
             g.FillPath(new SolidBrush(Color.FromArgb(, m_waveColor.R, m_waveColor.G, m_waveColor.B)), path2);
         }

为了“波动”，添加定时器，定时器事件如下

 void timer_Tick(object sender, EventArgs e)
         {
             intLeftX -= ;
             if (intLeftX == m_waveWidth * -)
                 intLeftX = m_waveWidth * -;
             this.Refresh();
         }

完整代码

 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Drawing;
 using System.Drawing.Drawing2D;
 using System.Linq;
 using System.Text;
 using System.Windows.Forms;

 namespace HZH_Controls.Controls
 {
     public class UCWave : Control
     {
         private Color m_waveColor = Color.FromArgb(, , );

         [Description("波纹颜色"), Category("自定义")]
         public Color WaveColor
         {
             get { return m_waveColor; }
             set { m_waveColor = value; }
         }

         private int m_waveWidth = ;
         /// <summary>
         /// 为方便计算，强制使用10的倍数
         /// </summary>
         [Description("波纹宽度（为方便计算，强制使用10的倍数）"), Category("自定义")]
         public int WaveWidth
         {
             get { return m_waveWidth; }
             set
             {
                 m_waveWidth = value;
                 m_waveWidth = m_waveWidth /  * ;
                 intLeftX = value * -;
             }
         }

         private int m_waveHeight = ;
         /// <summary>
         /// 波高
         /// </summary>
         [Description("波高"), Category("自定义")]
         public int WaveHeight
         {
             get { return m_waveHeight; }
             set { m_waveHeight = value; }
         }

         private int m_waveSleep = ;
         /// <summary>
         /// 波运行速度（运行时间间隔，毫秒）
         /// </summary>
         [Description("波运行速度（运行时间间隔，毫秒）"), Category("自定义")]
         public int WaveSleep
         {
             get { return m_waveSleep; }
             set
             {
                 if (value <= )
                     return;
                 m_waveSleep = value;
                 if (timer != null)
                 {
                     timer.Enabled = false;
                     timer.Interval = value;
                     timer.Enabled = true;
                 }
             }
         }

         Timer timer = new Timer();
         int intLeftX = -;
         public UCWave()
         {
             this.Size = new Size(, );
             this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
             this.SetStyle(ControlStyles.DoubleBuffer, true);
             this.SetStyle(ControlStyles.ResizeRedraw, true);
             this.SetStyle(ControlStyles.Selectable, true);
             this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
             this.SetStyle(ControlStyles.UserPaint, true);
             timer.Interval = m_waveSleep;
             timer.Tick += timer_Tick;
             this.VisibleChanged += UCWave_VisibleChanged;
         }

         void UCWave_VisibleChanged(object sender, EventArgs e)
         {
             timer.Enabled = this.Visible;
         }

         void timer_Tick(object sender, EventArgs e)
         {
             intLeftX -= ;
             if (intLeftX == m_waveWidth * -)
                 intLeftX = m_waveWidth * -;
             this.Refresh();
         }
         protected override void OnPaint(PaintEventArgs e)
         {
             base.OnPaint(e);
             var g = e.Graphics;
             g.SetGDIHigh();
             List<Point> lst1 = new List<Point>();
             List<Point> lst2 = new List<Point>();
             int m_intX = intLeftX;
             while (true)
             {
                 lst1.Add(new Point(m_intX, ));
                 lst1.Add(new Point(m_intX + m_waveWidth / , m_waveHeight));

                 lst2.Add(new Point(m_intX + m_waveWidth / , ));
                 lst2.Add(new Point(m_intX + m_waveWidth /  + m_waveWidth / , m_waveHeight));
                 m_intX += m_waveWidth;
                 if (m_intX > this.Width + m_waveWidth)
                     break;
             }

             GraphicsPath path1 = new GraphicsPath();
             path1.AddCurve(lst1.ToArray(), 0.5F);
             path1.AddLine(this.Width + , -, this.Width + , this.Height);
             path1.AddLine(this.Width + , this.Height, -, this.Height);
             path1.AddLine(-, this.Height, -, -);

             GraphicsPath path2 = new GraphicsPath();
             path2.AddCurve(lst2.ToArray(), 0.5F);
             path2.AddLine(this.Width + , -, this.Width + , this.Height);
             path2.AddLine(this.Width + , this.Height, -, this.Height);
             path2.AddLine(-, this.Height, -, -);

             g.FillPath(new SolidBrush(Color.FromArgb(, m_waveColor.R, m_waveColor.G, m_waveColor.B)), path1);
             g.FillPath(new SolidBrush(Color.FromArgb(, m_waveColor.R, m_waveColor.G, m_waveColor.B)), path2);
         }
     }
 }

最后的话

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