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
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NuGetInstall-Package HZH_Controls目录
https://www.cnblogs.com/bfyx/p/11364884.html
用处及效果 准备工作依然使用GDI+绘画，这个比较简单，就是画圆
开始新增一个类UCSignalLamp，继承UserControl
添加属性
1 /// <summary> 2 /// The is show border 3 /// </summary> 4 private bool isShowborder = false; 5 6 /// <summary> 7 /// Gets or sets a value indicating whether this instance is show border. 8 /// </summary> 9 /// <value><c>true</c> if this instance is show border; otherwise,<c>false</c>.</value> 10 [Description("是否显示边框"),category("自定义")] 11 public bool IsShowborder 12 { 13 get { return isShowborder; } 14 set 15 { 16 isShowborder = value; 17 Refresh(); 18 } 19 } 20 21 /// <summary> 22 /// The lamp color 23 /// </summary> 24 private color[] lampcolor = new color[] { color.FromArgb(255,77,59) }; 25 26 /// <summary> 27 /// Gets or sets the color of the lamp. 28 /// </summary> 29 /// <value>The color of the lamp.</value> 30 [Description("灯颜色，当需要闪烁时，至少需要2个及以上颜色，不需要闪烁则至少需要1个颜色"),category("自定义")] 31 public color[] Lampcolor 32 { 33 get { return lampcolor; } 34 set 35 { 36 if (value == null || value.Length <= 0) 37 return; 38 lampcolor = value; 39 Refresh(); 40 } 41 } 42 43 /// <summary> 44 /// The is highlight 45 /// </summary> 46 private bool isHighlight = true; 47 48 /// <summary> 49 /// Gets or sets a value indicating whether this instance is highlight. 50 /// </summary> 51 /// <value><c>true</c> if this instance is highlight; otherwise,<c>false</c>.</value> 52 [Description("是否高亮显示"),category("自定义")] 53 public bool IsHighlight 54 { 55 get { return isHighlight; } 56 set 57 { 58 isHighlight = value; 59 Refresh(); 60 } 61 } 62 63 /// <summary> 64 /// The twinkle speed 65 /// </summary> 66 private int twinkleSpeed = 0; 67 68 /// <summary> 69 /// Gets or sets the twinkle speed. 70 /// </summary> 71 /// <value>The twinkle speed.</value> 72 [Description("闪烁间隔时间（毫秒），当为0时不闪烁"),category("自定义")] 73 public int TwinkleSpeed 74 { 75 get { return twinkleSpeed; } 76 set 77 { 78 if (value < 0) 79 return; 80 twinkleSpeed = value; 81 if (value == 0 || lampcolor.Length <= 1) 82 { 83 timer.Enabled = false; 84 } 85 else 86 { 87 intcolorIndex = 0; 88 timer.Interval = value; 89 timer.Enabled = true; 90 } 91 Refresh(); 92 } 93 } 94 /// <summary> 95 /// The timer 96 /// </summary> 97 Timer timer; 98 /// <summary> 99 /// The int color index100 /// </summary>101 int intcolorIndex = 0;
重绘
1 protected overrIDe voID OnPaint(PaintEventArgs e) 2 { 3 base.OnPaint(e); 4 var g = e.Graphics; 5 g.SetGDIHigh(); 6 color c1 = lampcolor[intcolorIndex]; 7 g.FillEllipse(new SolIDBrush(c1),this.ClIEntRectangle); 8 9 if (isHighlight)10 {11 GraphicsPath gp = new GraphicsPath();12 13 Rectangle rec = new Rectangle(5,5,this.WIDth - 10,this.Height - 10);14 gp.AddEllipse(rec);15 16 color[] surroundcolor = new color[] { c1 };17 PathGradIEntBrush pb = new PathGradIEntBrush(gp);18 pb.Centercolor = color.White;19 pb.Surroundcolors = surroundcolor;20 g.FillPath(pb,gp);21 }22 23 if (isShowborder)24 {25 g.DrawEllipse(new Pen(new SolIDBrush(this.Backcolor),2),new Rectangle(4,4,this.WIDth - 8,this.Height - 8));26 }27 }
全部代码
1 // *********************************************************************** 2 // Assembly : HZH_Controls 3 // Created : 2019-09-09 4 // 5 // *********************************************************************** 6 // <copyright file="UCSignalLamp.cs"> 7 // copyright by Huang Zhenghui(黄正辉) All,QQ group:568015492 QQ:623128629 Email:[email protected] 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 System.ComponentModel; 24 25 namespace HZH_Controls.Controls.FactoryControls.Lamp 26 { 27 /// <summary> 28 /// Class UCSignalLamp. 29 /// Implements the <see cref="System.windows.Forms.UserControl" /> 30 /// </summary> 31 /// <seealso cref="System.windows.Forms.UserControl" /> 32 public class UCSignalLamp : UserControl 33 { 34 /// <summary> 35 /// The is show border 36 /// </summary> 37 private bool isShowborder = false; 38 39 /// <summary> 40 /// Gets or sets a value indicating whether this instance is show border. 41 /// </summary> 42 /// <value><c>true</c> if this instance is show border; otherwise,<c>false</c>.</value> 43 [Description("是否显示边框"),category("自定义")] 44 public bool IsShowborder 45 { 46 get { return isShowborder; } 47 set 48 { 49 isShowborder = value; 50 Refresh(); 51 } 52 } 53 54 /// <summary> 55 /// The lamp color 56 /// </summary> 57 private color[] lampcolor = new color[] { color.FromArgb(255,59) }; 58 59 /// <summary> 60 /// Gets or sets the color of the lamp. 61 /// </summary> 62 /// <value>The color of the lamp.</value> 63 [Description("灯颜色，当需要闪烁时，至少需要2个及以上颜色，不需要闪烁则至少需要1个颜色"),category("自定义")] 64 public color[] Lampcolor 65 { 66 get { return lampcolor; } 67 set 68 { 69 if (value == null || value.Length <= 0) 70 return; 71 lampcolor = value; 72 Refresh(); 73 } 74 } 75 76 /// <summary> 77 /// The is highlight 78 /// </summary> 79 private bool isHighlight = true; 80 81 /// <summary> 82 /// Gets or sets a value indicating whether this instance is highlight. 83 /// </summary> 84 /// <value><c>true</c> if this instance is highlight; otherwise,<c>false</c>.</value> 85 [Description("是否高亮显示"),category("自定义")] 86 public bool IsHighlight 87 { 88 get { return isHighlight; } 89 set 90 { 91 isHighlight = value; 92 Refresh(); 93 } 94 } 95 96 /// <summary> 97 /// The twinkle speed 98 /// </summary> 99 private int twinkleSpeed = 0;100 101 /// <summary>102 /// Gets or sets the twinkle speed.103 /// </summary>104 /// <value>The twinkle speed.</value>105 [Description("闪烁间隔时间（毫秒），当为0时不闪烁"),category("自定义")]106 public int TwinkleSpeed107 {108 get { return twinkleSpeed; }109 set110 {111 if (value < 0)112 return;113 twinkleSpeed = value;114 if (value == 0 || lampcolor.Length <= 1)115 {116 timer.Enabled = false;117 }118 else119 {120 intcolorIndex = 0;121 timer.Interval = value;122 timer.Enabled = true;123 }124 Refresh();125 }126 }127 /// <summary>128 /// The timer129 /// </summary>130 Timer timer;131 /// <summary>132 /// The int color index133 /// </summary>134 int intcolorIndex = 0;135 /// <summary>136 /// Initializes a new instance of the <see cref="UCSignalLamp"/> class.137 /// </summary>138 public UCSignalLamp()139 {140 this.SetStyle(ControlStyles.AllPaintingInWmPaint,true);141 this.SetStyle(ControlStyles.DoubleBuffer,true);142 this.SetStyle(ControlStyles.ResizeRedraw,true);143 this.SetStyle(ControlStyles.Selectable,true);144 this.SetStyle(ControlStyles.SupportstransparentBackcolor,true);145 this.SetStyle(ControlStyles.UserPaint,true);146 this.autoScaleMode = System.windows.Forms.autoScaleMode.None;147 this.Size = new Size(50,50);148 this.SizeChanged += UCSignalLamp_SizeChanged;149 timer = new Timer();150 timer.Interval = 200;151 timer.Tick += timer_Tick;152 }153 154 /// <summary>155 /// Handles the Tick event of the timer control.156 /// </summary>157 /// <param name="sender">The source of the event.</param>158 /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>159 voID timer_Tick(object sender,EventArgs e)160 {161 intcolorIndex++;162 if (intcolorIndex >= lampcolor.Length)163 intcolorIndex = 0;164 Refresh();165 }166 /// <summary>167 /// Handles the SizeChanged event of the UCSignalLamp control.168 /// </summary>169 /// <param name="sender">The source of the event.</param>170 /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>171 voID UCSignalLamp_SizeChanged(object sender,EventArgs e)172 {173 var maxSize = Math.Min(this.WIDth,this.Height);174 if (this.WIDth != maxSize)175 this.WIDth = maxSize;176 if (this.Height != maxSize)177 this.Height = maxSize;178 }179 180 /// <summary>181 /// 引发 <see cref="E:System.windows.Forms.Control.Paint" /> 事件。182 /// </summary>183 /// <param name="e">包含事件数据的 <see cref="T:System.windows.Forms.PaintEventArgs" />。</param>184 protected overrIDe voID OnPaint(PaintEventArgs e)185 {186 base.OnPaint(e);187 var g = e.Graphics;188 g.SetGDIHigh();189 color c1 = lampcolor[intcolorIndex];190 g.FillEllipse(new SolIDBrush(c1),this.ClIEntRectangle);191 192 if (isHighlight)193 {194 GraphicsPath gp = new GraphicsPath();195 196 Rectangle rec = new Rectangle(5,this.Height - 10);197 gp.AddEllipse(rec);198 199 color[] surroundcolor = new color[] { c1 };200 PathGradIEntBrush pb = new PathGradIEntBrush(gp);201 pb.Centercolor = color.White;202 pb.Surroundcolors = surroundcolor;203 g.FillPath(pb,gp);204 }205 206 if (isShowborder)207 {208 g.DrawEllipse(new Pen(new SolIDBrush(this.Backcolor),this.Height - 8));209 }210 }211 }212 }VIEw Code
最后的话
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