Code1
class Figure2
{3
/**//// <summary>4
/// 画一个圆角矩形5
/// </summary>6
/// <param name="x">矩形左上角X</param>7
/// <param name="y">矩形右上角Y</param>8
/// <param name="width">矩形宽</param>9
/// <param name="height">矩形高</param>10
/// <param name="arc">弧度的矩形宽度,arc<0时,则等于矩形宽或者高最短者的1/2</param>11
/// <returns></returns>12
public GraphicsPath RoundRectangle(int x, int y, int width, int height, int arc)13
{14
if (arc < 0)15
{16
if (width < height)17
arc = width / 2;18
else19
arc = height / 2;20
}21
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GraphicsPath gPath = new GraphicsPath();23
gPath.AddArc(x, y, arc, arc, 180, 90);24
gPath.AddArc(width - arc, y, arc, arc, 270, 90);25
gPath.AddArc(width - arc, height - arc, arc, arc, 0, 90);26
gPath.AddArc(x, height - arc, arc, arc, 90, 90);27
gPath.CloseAllFigures();28
return gPath;29
}30
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/**//// <summary>32
/// 画一个圆角矩形33
/// </summary>34
/// <param name="rect">矩形</param>35
/// <param name="arc">弧度的矩形宽度,arc < 0时,则等于矩形宽或者高最短者的1/2</param>36
/// <returns></returns>37
public GraphicsPath RoundRectangle(Rectangle rect, int arc)38
{39
return RoundRectangle(rect.X, rect.Y, rect.Width, rect.Height, arc);40
}41
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/**//// <summary>43
/// 根据矩形在矩形内绘制八角形44
/// </summary>45
/// <param name="x">矩形左上角X</param>46
/// <param name="y">矩形右上角Y</param>47
/// <param name="width">矩形宽</param>48
/// <param name="height">矩形高</param>49
/// <returns></returns>50
public GraphicsPath Octagon(int x, int y, int width, int height)51
{52
GraphicsPath gPath = new GraphicsPath();53
gPath.AddLine(x, height / 4, width / 4, y);54
gPath.AddLine(width - width / 4, y, width, height / 4);55
gPath.AddLine(width, height - height / 4, width - width / 4, height);56
gPath.AddLine(width / 4, height, x, height - height / 4);57
58
gPath.CloseAllFigures();59
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return gPath;61
}62
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/**//// <summary>64
/// 根据矩形在矩形内绘制八角形65
/// </summary>66
/// <param name="rect">矩形</param>67
/// <returns></returns>68
public GraphicsPath Octagon(Rectangle rect)69
{70
return Octagon(rect.X, rect.Y, rect.Width, rect.Height);71
}72
}