前提 入行已經7,8年了，一直想做一套漂亮點的自定義控制項，於是就有了本系列文章。 GitHub：https://github.com/kwwwvagaa/NetWinformControl 碼雲：https://gitee.com/kwwwvagaa/net_winform_custom_contr ...
前提
入行已經7,8年了，一直想做一套漂亮點的自定義控制項，於是就有了本系列文章。
GitHub：https://github.com/kwwwvagaa/NetWinformControl
碼雲：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
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NuGet
Install-Package HZH_Controls
目錄
https://www.cnblogs.com/bfyx/p/11364884.html
用處及效果
準備工作
依然GDI+，不懂可以先百度瞭解下
開始
添加一個類UCAlarmLamp，繼承自UserControl
添加屬性
1 /// <summary> 2 /// The lamp color 3 /// </summary> 4 private Color[] lampColor = new Color[] { Color.FromArgb(255, 77, 59) }; 5 6 /// <summary> 7 /// Gets or sets the color of the lamp. 8 /// </summary> 9 /// <value>The color of the lamp.</value> 10 [Description("燈顏色，當需要閃爍時，至少需要2個及以上顏色，不需要閃爍則至少需要1個顏色"), Category("自定義")] 11 public Color[] LampColor 12 { 13 get { return lampColor; } 14 set 15 { 16 if (value == null || value.Length <= 0) 17 return; 18 lampColor = value; 19 Refresh(); 20 } 21 } 22 23 /// <summary> 24 /// The lampstand 25 /// </summary> 26 private Color lampstand = Color.FromArgb(105, 105, 105); 27 28 /// <summary> 29 /// Gets or sets the lampstand. 30 /// </summary> 31 /// <value>The lampstand.</value> 32 [Description("燈座顏色"), Category("自定義")] 33 public Color Lampstand 34 { 35 get { return lampstand; } 36 set { lampstand = value; } 37 } 38 39 /// <summary> 40 /// The twinkle speed 41 /// </summary> 42 private int twinkleSpeed = 0; 43 44 /// <summary> 45 /// Gets or sets the twinkle speed. 46 /// </summary> 47 /// <value>The twinkle speed.</value> 48 [Description("閃爍間隔時間（毫秒），當為0時不閃爍"), Category("自定義")] 49 public int TwinkleSpeed 50 { 51 get { return twinkleSpeed; } 52 set 53 { 54 if (value < 0) 55 return; 56 twinkleSpeed = value; 57 if (value == 0 || lampColor.Length <= 1) 58 { 59 timer.Enabled = false; 60 } 61 else 62 { 63 intColorIndex = 0; 64 timer.Interval = value; 65 timer.Enabled = true; 66 } 67 Refresh(); 68 } 69 } 70 /// <summary> 71 /// The timer 72 /// </summary> 73 Timer timer; 74 /// <summary> 75 /// The int color index 76 /// </summary> 77 int intColorIndex = 0; 78 /// <summary> 79 /// The m rect working 80 /// </summary> 81 Rectangle m_rectWorking;
重繪
1 protected override void OnPaint(PaintEventArgs e) 2 { 3 base.OnPaint(e); 4 var g = e.Graphics; 5 g.SetGDIHigh(); 6 7 Color c1 = lampColor[intColorIndex]; 8 GraphicsPath path = new GraphicsPath(); 9 path.AddLine(new Point(m_rectWorking.Left, m_rectWorking.Bottom), new Point(m_rectWorking.Left, m_rectWorking.Top + m_rectWorking.Width)); 10 path.AddArc(new Rectangle(m_rectWorking.Left, m_rectWorking.Top, m_rectWorking.Width, m_rectWorking.Width), 180f, 180f); 11 path.AddLine(new Point(m_rectWorking.Right, m_rectWorking.Top + m_rectWorking.Width), new Point(m_rectWorking.Right, m_rectWorking.Bottom)); 12 path.CloseAllFigures(); 13 g.FillPath(new SolidBrush(c1), path); 14 15 g.FillRectangle(new SolidBrush(lampstand), new Rectangle(5, m_rectWorking.Bottom - 19, this.Width - 10, 10)); 16 g.FillRectangle(new SolidBrush(lampstand), new Rectangle(0, m_rectWorking.Bottom - 10, this.Width, 10)); 17 }
完整代碼
1 // *********************************************************************** 2 // Assembly : HZH_Controls 3 // Created : 2019-09-10 4 // 5 // *********************************************************************** 6 // <copyright file="UCAlarmLamp.cs"> 7 // Copyright by Huang Zhenghui(黃正輝) 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 26 { 27 /// <summary> 28 /// Class UCAlarmLamp. 29 /// Implements the <see cref="System.Windows.Forms.UserControl" /> 30 /// </summary> 31 /// <seealso cref="System.Windows.Forms.UserControl" /> 32 public class UCAlarmLamp : UserControl 33 { 34 /// <summary> 35 /// The lamp color 36 /// </summary> 37 private Color[] lampColor = new Color[] { Color.FromArgb(255, 77, 59) }; 38 39 /// <summary> 40 /// Gets or sets the color of the lamp. 41 /// </summary> 42 /// <value>The color of the lamp.</value> 43 [Description("燈顏色，當需要閃爍時，至少需要2個及以上顏色，不需要閃爍則至少需要1個顏色"), Category("自定義")] 44 public Color[] LampColor 45 { 46 get { return lampColor; } 47 set 48 { 49 if (value == null || value.Length <= 0) 50 return; 51 lampColor = value; 52 Refresh(); 53 } 54 } 55 56 /// <summary> 57 /// The lampstand 58 /// </summary> 59 private Color lampstand = Color.FromArgb(105, 105, 105); 60 61 /// <summary> 62 /// Gets or sets the lampstand. 63 /// </summary> 64 /// <value>The lampstand.</value> 65 [Description("燈座顏色"), Category("自定義")] 66 public Color Lampstand 67 { 68 get { return lampstand; } 69 set { lampstand = value; } 70 } 71 72 /// <summary> 73 /// The twinkle speed 74 /// </summary> 75 private int twinkleSpeed = 0; 76 77 /// <summary> 78 /// Gets or sets the twinkle speed. 79 /// </summary> 80 /// <value>The twinkle speed.</value> 81 [Description("閃爍間隔時間（毫秒），當為0時不閃爍"), Category("自定義")] 82 public int TwinkleSpeed 83 { 84 get { return twinkleSpeed; } 85 set 86 { 87 if (value < 0) 88 return; 89 twinkleSpeed = value; 90 if (value == 0 || lampColor.Length <= 1) 91 { 92 timer.Enabled = false; 93 } 94 else 95 { 96 intColorIndex = 0; 97 timer.Interval = value; 98 timer.Enabled = true; 99 } 100 Refresh(); 101 } 102 } 103 /// <summary> 104 /// The timer 105 /// </summary> 106 Timer timer; 107 /// <summary> 108 /// The int color index 109 /// </summary> 110 int intColorIndex = 0; 111 /// <summary> 112 /// The m rect working 113 /// </summary> 114 Rectangle m_rectWorking; 115 /// <summary> 116 /// Initializes a new instance of the <see cref="UCAlarmLamp"/> class. 117 /// </summary> 118 public UCAlarmLamp() 119 { 120 this.SetStyle(ControlStyles.AllPaintingInWmPaint, true); 121 this.SetStyle(ControlStyles.DoubleBuffer, true); 122 this.SetStyle(ControlStyles.ResizeRedraw, true); 123 this.SetStyle(ControlStyles.Selectable, true); 124 this.SetStyle(ControlStyles.SupportsTransparentBackColor, true); 125 this.SetStyle(ControlStyles.UserPaint, true); 126 this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None; 127 this.SizeChanged += UCAlarmLamp_SizeChanged; 128 this.Size = new Size(50, 50); 129 timer = new Timer(); 130 timer.Interval = 200; 131 timer.Tick += timer_Tick; 132 } 133 134 /// <summary> 135 /// Handles the SizeChanged event of the UCAlarmLamp control. 136 /// </summary> 137 /// <param name="sender">The source of the event.</param> 138 /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param> 139 void UCAlarmLamp_SizeChanged(object sender, EventArgs e) 140 { 141 m_rectWorking = new Rectangle(10, 0, this.Width - 20, this.Height); 142 } 143 /// <summary> 144 /// Handles the Tick event of the timer control. 145 /// </summary> 146 /// <param name="sender">The source of the event.</param> 147 /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param> 148 void timer_Tick(object sender, EventArgs e) 149 { 150 intColorIndex++; 151 if (intColorIndex >= lampColor.Length) 152 intColorIndex = 0; 153 Refresh(); 154 } 155 /// <summary> 156 /// 引發 <see cref="E:System.Windows.Forms.Control.Paint" /> 事件。 157 /// </summary> 158 /// <param name="e">包含事件數據的 <see cref="T:System.Windows.Forms.PaintEventArgs" />。</param> 159 protected override void OnPaint(PaintEventArgs e) 160 { 161 base.OnPaint(e); 162 var g = e.Graphics; 163 g.SetGDIHigh(); 164 165 Color c1 = lampColor[intColorIndex]; 166 GraphicsPath path = new GraphicsPath(); 167 path.AddLine(new Point(m_rectWorking.Left, m_rectWorking.Bottom), new Point(m_rectWorking.Left, m_rectWorking.Top + m_rectWorking.Width)); 168 path.AddArc(new Rectangle(m_rectWorking.Left, m_rectWorking.Top, m_rectWorking.Width, m_rectWorking.Width), 180f, 180f); 169 path.AddLine(new Point(m_rectWorking.Right, m_rectWorking.Top + m_rectWorking.Width), new Point(m_rectWorking.Right, m_rectWorking.Bottom)); 170 path.CloseAllFigures(); 171 g.FillPath(new SolidBrush(c1), path); 172 173 g.FillRectangle(new SolidBrush(lampstand), new Rectangle(5, m_rectWorking.Bottom - 19, this.Width - 10, 10)); 174 g.FillRectangle(new SolidBrush(lampstand), new Rectangle(0, m_rectWorking.Bottom - 10, this.Width, 10)); 175 } 176 } 177 }View Code
最後的話
如果你喜歡的話，請到 https://gitee.com/kwwwvagaa/net_winform_custom_control 點個星星吧
