C#创建环形窗体...

C#环形窗体设计

最新推荐文章于 2023-09-13 17:52:49 发布

weixin_30872733

最新推荐文章于 2023-09-13 17:52:49 发布

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CC 4.0 BY-SA版权

文章标签： c#

原文链接：http://www.cnblogs.com/lonelyxmas/archive/2009/12/10/1620922.html

C#创建环形窗体...

看看代码先

  1 public partial class Demo3 : Form
  2     {
  3          private System.ComponentModel.IContainer components = null ;
  4          protected override void Dispose ( bool disposing)
  5         {
  6              if (disposing && (components != null ))
  7             {
  8                 components.Dispose ();
  9             }
10              base .Dispose (disposing);
11         }
12          private void InitializeComponent ()
13         {
14              this .SuspendLayout ();
15              this .AutoScaleDimensions = new System.Drawing.SizeF (7F, 12F);
16              this .AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
17              this .BackColor = System.Drawing.Color.SkyBlue;
18              this .BackgroundImage = global ::CustomControl.Properties.Resources.test01;
19              this .ClientSize = new System.Drawing.Size ( 583 , 500 );
20              this .Font = new System.Drawing.Font ( " 宋体 " , 9F, ((System.Drawing.FontStyle)(((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic)
21                              | System.Drawing.FontStyle.Underline))), System.Drawing.GraphicsUnit.Point, (( byte )( 134 )));
22              this .ForeColor = System.Drawing.Color.Red;
23              this .FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
24              this .Name = " Demo3 " ;
25              this .Opacity = 0.8 ;
26              this .Text = " Demo3 " ;
27              this .MouseUp += new System.Windows.Forms.MouseEventHandler ( this .Demo3_MouseUp);
28              this .MouseDown += new System.Windows.Forms.MouseEventHandler ( this .Demo3_MouseDown);
29              this .MouseMove += new System.Windows.Forms.MouseEventHandler ( this .Demo3_MouseMove);
30              this .ResumeLayout ( false );
31
32         }
33
34
35          public Demo3 ()
36         {
37             InitializeComponent ();
38              this .Height = 500 ;
39              this .Width = 500 ;
40              this .Region = new Region (GetRoundRectPath( 0 , 0 , this .Width / 4 , this .Width));
41         }
42
43          /// <summary>
44          /// 得到一个环形路径
45          /// </summary>
46          /// <param name="x"> 外圆外切正方形的左上角位置top </param>
47          /// <param name="y"> 外圆外切正方形的左上角位置left </param>
48          /// <param name="outDiameter"> 外圆直径 </param>
49          /// <param name="inDiameter"> 内圆直径 </param>
50          /// <returns></returns>
51          public GraphicsPath GetRoundRectPath ( float x, float y, int outDiameter, int inDiameter)
52         {
53              if (outDiameter < inDiameter)
54             {
55                 outDiameter = outDiameter ^ inDiameter;
56                 inDiameter = outDiameter ^ inDiameter;
57                 outDiameter = outDiameter ^ inDiameter;
58                  // A=A+B;B=A-B;A=A-B;   // 交换方法1
59                  // A=A^B;B=A^B;A=A^B;   // 交换方法2
60             }
61
62              // 添加一个圆
63             GraphicsPath path1 = new GraphicsPath ();
64
65             path1.AddEllipse (x, y, outDiameter, outDiameter);
66
67             GraphicsPath path2 = new GraphicsPath ();
68             path2.AddEllipse (x + (outDiameter - inDiameter) / 2 , x + (outDiameter - inDiameter) / 2 , inDiameter, inDiameter);
69
70             path1.AddPath (path2, true );
71
72             path1.AddString ( " 无码高清版 " , new FontFamily ( " Arial " ), ( int )FontStyle.Bold, 26 , new Point ( 170 , 100 ), StringFormat.GenericDefault);
73             path1.AddString ( " GGYY影视公司 " , new FontFamily ( " Arial " ), ( int )FontStyle.Underline, 26 , new Point ( 160 , 400 ), StringFormat.GenericDefault);
74
75              return path1;
76         }
77          // 记录鼠标指针的坐标
78          private Point mouseOffset;
79          // 记录鼠标按键是否按下
80          private bool isMouseDown = false ;
81
82          private void Demo3_MouseDown ( object sender, MouseEventArgs e)
83         {
84              int xOffset;
85              int yOffset;
86              if (e.Button == MouseButtons.Left)
87             {
88                  if ( this .FormBorderStyle == System.Windows.Forms.FormBorderStyle.None)
89                 {
90                     xOffset = - e.X ;
91                     yOffset = - e.Y;
92                 }
93                  else
94                 {
95                     xOffset = - e.X - SystemInformation.FrameBorderSize.Width;
96                     yOffset = - e.Y - SystemInformation.CaptionHeight - SystemInformation.FrameBorderSize.Height;
97                 }
98                 mouseOffset = new Point (xOffset, yOffset);
99                 isMouseDown = true ;
100             }
101         }
102
103          private void Demo3_MouseMove ( object sender, MouseEventArgs e)
104         {
105              if (isMouseDown)
106             {
107                 Point mousePos = Control.MousePosition;
108                 mousePos.Offset (mouseOffset.X, mouseOffset.Y);
109                 Location = mousePos;
110             }
111         }
112
113          private void Demo3_MouseUp ( object sender, MouseEventArgs e)
114         {
115              // 修改鼠标状态isMouseDown的值, 确保只有鼠标左键按下并移动时，才移动窗体
116              if (e.Button == MouseButtons.Left)
117             {
118                 isMouseDown = false ;
119             }
120         }
121
122     }