（四十六）c#Winform自定义控件-水波进度条 - 好文

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
<https://github.com/kwwwvagaa/NetWinformControl>

码云：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
<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
<https://shang.qq.com/wpa/qunwpa?idkey=6e08741ef16fe53bf0314c1c9e336c4f626047943a8b76bac062361bab6b4f8d>

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

用处及效果

准备工作

这个用到GDI+画的，请先了解一下GDI+

还有用到了基类控件UCControlBase来控制圆角和背景色，如果还不了解请移步查看

（一）c#Winform自定义控件-基类控件 <https://www.cnblogs.com/bfyx/p/11361809.html>

另外用到了水波控件UCWave，如果不了解请移步查看

（四十四）c#Winform自定义控件-水波 <https://www.cnblogs.com/bfyx/p/11397975.html>

开始

添加一个用户控件UCProcessWave，继承UCControlBase

一些属性
1 private bool m_isRectangle = false; 2 [Description("是否矩形"), Category("自定义"
)] 3 public bool IsRectangle 4 { 5 get { return m_isRectangle; } 6 set 7 {
8 m_isRectangle = value; 9 if (value) 10 { 11 base.ConerRadius = 10; 12 }
13 else 14 { 15 base.ConerRadius = Math.Min(this.Width, this.Height); 16 }
17 } 18 } 19 #region 不再使用的父类属性 English:Parent class attributes that are no
longer used 20 [Browsable(false)] 21 public new int ConerRadius 22 { 23 get;
24 set; 25 } 26 [Browsable(false)] 27 public new bool IsRadius 28 { 29
get; 30 set; 31 } 32 33 [Browsable(false)] 34 public new Color FillColor
35 { 36 get; 37 set; 38 } 39 #endregion 40 41 42 [Description("值变更事件"
), Category("自定义")] 43 public event EventHandler ValueChanged; 44 int m_value
=0; 45 [Description("当前属性"), Category("自定义")] 46 public int Value 47 { 48
set 49 { 50 if (value > m_maxValue) 51 m_value = m_maxValue; 52 else if
(value <0) 53 m_value = 0; 54 else 55 m_value = value; 56 if (ValueChanged
!=null) 57 ValueChanged(this, null); 58 ucWave1.Height = (int)((double
)m_value / (double)m_maxValue * this.Height) + ucWave1.WaveHeight; 59
Refresh(); 60 } 61 get 62 { 63 return m_value; 64 } 65 } 66 67
private int m_maxValue = 100; 68 69 [Description("最大值"), Category("自定义")] 70
public int MaxValue 71 { 72 get { return m_maxValue; } 73 set 74 { 75 if
(value < m_value) 76 m_maxValue = m_value; 77 else 78 m_maxValue = value; 79
Refresh(); 80 } 81 } 82 83 public override Font Font 84 { 85 get 86 {
87 return base.Font; 88 } 89 set 90 { 91 base.Font = value; 92 } 93 }
94 95 public override Color ForeColor 96 { 97 get 98 { 99 return base
.ForeColor;100 } 101 set 102 { 103 base.ForeColor = value; 104 } 105 } 106
107 [Description("值颜色"), Category("自定义")] 108 public Color ValueColor 109 { 110
get { return this.ucWave1.WaveColor; } 111 set 112 { 113 this
.ucWave1.WaveColor = value; 114 } 115 } 116 117 [Description("边框宽度"),
Category("自定义")] 118 public override int RectWidth 119 { 120 get 121 { 122
return base.RectWidth; 123 } 124 set 125 { 126 if (value < 4) 127 base
.RectWidth =4; 128 else 129 base.RectWidth = value; 130 } 131 }
构造函数一些设置
1 public UCProcessWave() 2 { 3 InitializeComponent(); 4 this
.SetStyle(ControlStyles.AllPaintingInWmPaint,true); 5 this
.SetStyle(ControlStyles.DoubleBuffer,true); 6 this
.SetStyle(ControlStyles.ResizeRedraw,true); 7 this
.SetStyle(ControlStyles.Selectable,true); 8 this
.SetStyle(ControlStyles.SupportsTransparentBackColor,true); 9 this
.SetStyle(ControlStyles.UserPaint,true); 10 base.IsRadius = true; 11 base
.IsShowRect =false; 12 RectWidth = 4; 13 RectColor = Color.White; 14
ucWave1.Height = (int)((double)m_value / (double)m_maxValue * this.Height) +
ucWave1.WaveHeight;15 this.SizeChanged += UCProcessWave_SizeChanged; 16 this
.ucWave1.OnPainted += ucWave1_Painted; 17 base.ConerRadius = Math.Min(this
.Width,this.Height); 18 }
重绘
1 protected override void OnPaint(PaintEventArgs e) 2 { 3 base.OnPaint(e);
4 e.Graphics.SetGDIHigh(); 5 if (!m_isRectangle) 6 { 7 //
这里曲线救国，因为设置了控件区域导致的毛边，通过画一个没有毛边的圆遮挡 8 SolidBrush solidBrush = new
SolidBrush(Color.White); 9 e.Graphics.DrawEllipse(new Pen(solidBrush, 2), new
Rectangle(-1, -1, this.Width + 2, this.Height + 2)); 10 } 11 string strValue =
((double)m_value / (double)m_maxValue).ToString("0.%"); 12 System.Drawing.SizeF
sizeF = e.Graphics.MeasureString(strValue, Font); 13
e.Graphics.DrawString(strValue, Font,new SolidBrush(ForeColor), new PointF((this
.Width - sizeF.Width) /2, (this.Height - sizeF.Height) / 2 + 1)); 14 }
波形控件重绘时处理
1 void ucWave1_Painted(object sender, PaintEventArgs e) 2 { 3
e.Graphics.SetGDIHigh(); 4 if (IsShowRect) 5 { 6 if (m_isRectangle) 7 { 8
Color rectColor = RectColor; 9 Pen pen = new Pen(rectColor, (float)RectWidth);
10 Rectangle clientRectangle = new Rectangle(0, this.ucWave1.Height - this
.Height,this.Width, this.Height); 11 GraphicsPath graphicsPath = new
GraphicsPath();12 graphicsPath.AddArc(clientRectangle.X, clientRectangle.Y, 10,
10, 180f, 90f); 13 graphicsPath.AddArc(clientRectangle.Width - 10 - 1,
clientRectangle.Y,10, 10, 270f, 90f); 14
graphicsPath.AddArc(clientRectangle.Width -10 - 1, clientRectangle.Bottom - 10 -
1, 10, 10, 0f, 90f); 15 graphicsPath.AddArc(clientRectangle.X,
clientRectangle.Bottom -10 - 1, 10, 10, 90f, 90f); 16
graphicsPath.CloseFigure();17 e.Graphics.DrawPath(pen, graphicsPath); 18 } 19
else 20 { 21 SolidBrush solidBrush = new SolidBrush(RectColor); 22
e.Graphics.DrawEllipse(new Pen(solidBrush, RectWidth), new Rectangle(0, this
.ucWave1.Height -this.Height, this.Width, this.Height)); 23 } 24 } 25 26 if (!
m_isRectangle)27 { 28 //这里曲线救国，因为设置了控件区域导致的毛边，通过画一个没有毛边的圆遮挡 29 SolidBrush
solidBrush1 =new SolidBrush(Color.White); 30 e.Graphics.DrawEllipse(new
Pen(solidBrush1,2), new Rectangle(-1, this.ucWave1.Height - this.Height - 1,
this.Width + 2, this.Height + 2)); 31 } 32 string strValue = ((double)m_value
/ (double)m_maxValue).ToString("0.%"); 33 System.Drawing.SizeF sizeF =
e.Graphics.MeasureString(strValue, Font);34 e.Graphics.DrawString(strValue,
Font,new SolidBrush(ForeColor), new PointF((this.Width - sizeF.Width) / 2, (this
.ucWave1.Height -this.Height) + (this.Height - sizeF.Height) / 2)); 35 }
不知道你们有没有注意这句话
//这里曲线救国，因为设置了控件区域导致的毛边，通过画一个没有毛边的圆遮挡
因为设置原价导致了区域毛边，所有画个没有毛边的边框覆盖之

完整代码
1 using System; 2 using System.Collections.Generic; 3 using
System.ComponentModel; 4 using System.Drawing; 5 using System.Data; 6 using
System.Linq; 7 using System.Text; 8 using System.Windows.Forms; 9 using
System.Drawing.Drawing2D; 10 11 namespace HZH_Controls.Controls 12 { 13
public partial class UCProcessWave : UCControlBase 14 { 15 private bool
m_isRectangle =false; 16 [Description("是否矩形"), Category("自定义")] 17 public bool
IsRectangle 18 { 19 get { return m_isRectangle; } 20 set 21 { 22
m_isRectangle = value; 23 if (value) 24 { 25 base.ConerRadius = 10; 26 }
27 else 28 { 29 base.ConerRadius = Math.Min(this.Width, this.Height); 30 }
31 } 32 } 33 #region 不再使用的父类属性 English:Parent class attributes that are no
longer used 34 [Browsable(false)] 35 public new int ConerRadius 36 { 37 get;
38 set; 39 } 40 [Browsable(false)] 41 public new bool IsRadius 42 { 43
get; 44 set; 45 } 46 47 [Browsable(false)] 48 public new Color FillColor
49 { 50 get; 51 set; 52 } 53 #endregion 54 55 56 [Description("值变更事件"
), Category("自定义")] 57 public event EventHandler ValueChanged; 58 int m_value
=0; 59 [Description("当前属性"), Category("自定义")] 60 public int Value 61 { 62
set 63 { 64 if (value > m_maxValue) 65 m_value = m_maxValue; 66 else if
(value <0) 67 m_value = 0; 68 else 69 m_value = value; 70 if (ValueChanged
!=null) 71 ValueChanged(this, null); 72 ucWave1.Height = (int)((double
)m_value / (double)m_maxValue * this.Height) + ucWave1.WaveHeight; 73
Refresh(); 74 } 75 get 76 { 77 return m_value; 78 } 79 } 80 81
private int m_maxValue = 100; 82 83 [Description("最大值"), Category("自定义")] 84
public int MaxValue 85 { 86 get { return m_maxValue; } 87 set 88 { 89 if
(value < m_value) 90 m_maxValue = m_value; 91 else 92 m_maxValue = value; 93
Refresh(); 94 } 95 } 96 97 public override Font Font 98 { 99 get 100 {
101 return base.Font; 102 } 103 set 104 { 105 base.Font = value; 106 } 107 }
108 109 public override Color ForeColor 110 { 111 get 112 { 113 return base
.ForeColor;114 } 115 set 116 { 117 base.ForeColor = value; 118 } 119 } 120
121 [Description("值颜色"), Category("自定义")] 122 public Color ValueColor 123 { 124
get { return this.ucWave1.WaveColor; } 125 set 126 { 127 this
.ucWave1.WaveColor = value; 128 } 129 } 130 131 [Description("边框宽度"),
Category("自定义")] 132 public override int RectWidth 133 { 134 get 135 { 136
return base.RectWidth; 137 } 138 set 139 { 140 if (value < 4) 141 base
.RectWidth =4; 142 else 143 base.RectWidth = value; 144 } 145 } 146 147 public
UCProcessWave()148 { 149 InitializeComponent(); 150 this
.SetStyle(ControlStyles.AllPaintingInWmPaint,true); 151 this
.SetStyle(ControlStyles.DoubleBuffer,true); 152 this
.SetStyle(ControlStyles.ResizeRedraw,true); 153 this
.SetStyle(ControlStyles.Selectable,true); 154 this
.SetStyle(ControlStyles.SupportsTransparentBackColor,true); 155 this
.SetStyle(ControlStyles.UserPaint,true); 156 base.IsRadius = true; 157 base
.IsShowRect =false; 158 RectWidth = 4; 159 RectColor = Color.White; 160
ucWave1.Height = (int)((double)m_value / (double)m_maxValue * this.Height) +
ucWave1.WaveHeight;161 this.SizeChanged += UCProcessWave_SizeChanged; 162 this
.ucWave1.OnPainted += ucWave1_Painted; 163 base.ConerRadius = Math.Min(this
.Width,this.Height); 164 } 165 166 void ucWave1_Painted(object sender,
PaintEventArgs e)167 { 168 e.Graphics.SetGDIHigh(); 169 if (IsShowRect) 170 {
171 if (m_isRectangle) 172 { 173 Color rectColor = RectColor; 174 Pen pen = new
Pen(rectColor, (float)RectWidth); 175 Rectangle clientRectangle = new
Rectangle(0, this.ucWave1.Height - this.Height, this.Width, this.Height); 176
GraphicsPath graphicsPath =new GraphicsPath(); 177
graphicsPath.AddArc(clientRectangle.X, clientRectangle.Y,10, 10, 180f, 90f); 178
graphicsPath.AddArc(clientRectangle.Width -10 - 1, clientRectangle.Y, 10, 10,
270f, 90f);179 graphicsPath.AddArc(clientRectangle.Width - 10 - 1,
clientRectangle.Bottom -10 - 1, 10, 10, 0f, 90f); 180
graphicsPath.AddArc(clientRectangle.X, clientRectangle.Bottom -10 - 1, 10, 10,
90f, 90f);181 graphicsPath.CloseFigure(); 182 e.Graphics.DrawPath(pen,
graphicsPath);183 } 184 else 185 { 186 SolidBrush solidBrush = new
SolidBrush(RectColor);187 e.Graphics.DrawEllipse(new Pen(solidBrush, RectWidth),
new Rectangle(0, this.ucWave1.Height - this.Height, this.Width, this.Height));
188 } 189 } 190 191 if (!m_isRectangle) 192 { 193 //
这里曲线救国，因为设置了控件区域导致的毛边，通过画一个没有毛边的圆遮挡 194 SolidBrush solidBrush1 = new
SolidBrush(Color.White);195 e.Graphics.DrawEllipse(new Pen(solidBrush1, 2), new
Rectangle(-1, this.ucWave1.Height - this.Height - 1, this.Width + 2, this
.Height +2)); 196 } 197 string strValue = ((double)m_value / (double
)m_maxValue).ToString("0.%"); 198 System.Drawing.SizeF sizeF =
e.Graphics.MeasureString(strValue, Font);199 e.Graphics.DrawString(strValue,
Font,new SolidBrush(ForeColor), new PointF((this.Width - sizeF.Width) / 2, (this
.ucWave1.Height -this.Height) + (this.Height - sizeF.Height) / 2)); 200 } 201
202 void UCProcessWave_SizeChanged(object sender, EventArgs e) 203 { 204 if (!
m_isRectangle)205 { 206 base.ConerRadius = Math.Min(this.Width, this.Height);
207 if (this.Width != this.Height) 208 { 209 this.Size = new Size(Math.Min(this
.Width,this.Height), Math.Min(this.Width, this.Height)); 210 } 211 } 212 }
213 214 protected override void OnPaint(PaintEventArgs e) 215 { 216 base
.OnPaint(e);217 e.Graphics.SetGDIHigh(); 218 if (!m_isRectangle) 219 { 220 //
这里曲线救国，因为设置了控件区域导致的毛边，通过画一个没有毛边的圆遮挡 221 SolidBrush solidBrush = new
SolidBrush(Color.White);222 e.Graphics.DrawEllipse(new Pen(solidBrush, 2), new
Rectangle(-1, -1, this.Width + 2, this.Height + 2)); 223 } 224 string strValue
= ((double)m_value / (double)m_maxValue).ToString("0.%"); 225
System.Drawing.SizeF sizeF = e.Graphics.MeasureString(strValue, Font); 226
e.Graphics.DrawString(strValue, Font,new SolidBrush(ForeColor), new PointF((this
.Width - sizeF.Width) /2, (this.Height - sizeF.Height) / 2 + 1)); 227 } 228 }
229 } View Code 1 namespace HZH_Controls.Controls 2 { 3 partial class
UCProcessWave 4 { 5 /// <summary> 6 /// 必需的设计器变量。 7 /// </summary> 8
private System.ComponentModel.IContainer components = null; 9 10 /// <summary>
11 /// 清理所有正在使用的资源。 12 /// </summary> 13 /// <param name="disposing">
如果应释放托管资源，为 true；否则为 false。</param> 14 protected override void Dispose(bool
disposing)15 { 16 if (disposing && (components != null)) 17 { 18
components.Dispose();19 } 20 base.Dispose(disposing); 21 } 22 23 #region
组件设计器生成的代码24 25 /// <summary> 26 /// 设计器支持所需的方法 - 不要 27 /// 使用代码编辑器修改此方法的内容。 28
/// </summary> 29 private void InitializeComponent() 30 { 31 this.ucWave1 = new
HZH_Controls.Controls.UCWave();32 this.SuspendLayout(); 33 // 34 // ucWave1 35
// 36 this.ucWave1.Dock = System.Windows.Forms.DockStyle.Bottom; 37 this
.ucWave1.Location =new System.Drawing.Point(0, 140); 38 this.ucWave1.Name = "
ucWave1"; 39 this.ucWave1.Size = new System.Drawing.Size(150, 10); 40 this
.ucWave1.TabIndex =0; 41 this.ucWave1.Text = "ucWave1"; 42 this
.ucWave1.WaveColor = System.Drawing.Color.FromArgb(((int)(((byte)(73)))), ((int
)(((byte)(119)))), ((int)(((byte)(232))))); 43 this.ucWave1.WaveHeight = 15; 44
this.ucWave1.WaveSleep = 100; 45 this.ucWave1.WaveWidth = 100; 46 // 47 //
UCProcessWave48 // 49 this.AutoScaleMode =
System.Windows.Forms.AutoScaleMode.None;50 this.BackColor =
System.Drawing.Color.FromArgb(((int)(((byte)(197)))), ((int)(((byte)(229)))), ((
int)(((byte)(250))))); 51 this.Controls.Add(this.ucWave1); 52 this.Name = "
UCProcessWave"; 53 this.Size = new System.Drawing.Size(150, 150); 54 this
.ResumeLayout(false); 55 56 } 57 58 #endregion 59 60 private UCWave ucWave1; 61
}62 } View Code

最后的话

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