C#画圆角矩形的方法
本文实例讲述了C#画圆角矩形的方法。分享给大家供大家参考。具体实现方法如下：
protectedvoidPage_Load(objectsender,EventArgse)
{
Bitmapbm=newBitmap(800,600);
Graphicsg=Graphics.FromImage(bm);
g.FillRectangle(Brushes.White,newRectangle(0,0,800,600));
FillRoundRectangle(g,Brushes.Plum,newRectangle(100,100,100,100),8);
DrawRoundRectangle(g,Pens.Yellow,newRectangle(100,100,100,100),8);
bm.Save(Response.OutputStream,ImageFormat.Jpeg);
g.Dispose();
bm.Dispose();
}
publicstaticvoidDrawRoundRectangle(Graphicsg,Penpen,Rectanglerect,intcornerRadius)
{
using(GraphicsPathpath=CreateRoundedRectanglePath(rect,cornerRadius))
{
g.DrawPath(pen,path);
}
}
publicstaticvoidFillRoundRectangle(Graphicsg,Brushbrush,Rectanglerect,intcornerRadius)
{
using(GraphicsPathpath=CreateRoundedRectanglePath(rect,cornerRadius))
{
g.FillPath(brush,path);
}
}
internalstaticGraphicsPathCreateRoundedRectanglePath(Rectanglerect,intcornerRadius)
{
GraphicsPathroundedRect=newGraphicsPath();
roundedRect.AddArc(rect.X,rect.Y,cornerRadius*2,cornerRadius*2,180,90);
roundedRect.AddLine(rect.X+cornerRadius,rect.Y,rect.Right-cornerRadius*2,rect.Y);
roundedRect.AddArc(rect.X+rect.Width-cornerRadius*2,rect.Y,cornerRadius*2,cornerRadius*2,270,90);
roundedRect.AddLine(rect.Right,rect.Y+cornerRadius*2,rect.Right,rect.Y+rect.Height-cornerRadius*2);
roundedRect.AddArc(rect.X+rect.Width-cornerRadius*2,rect.Y+rect.Height-cornerRadius*2,cornerRadius*2,cornerRadius*2,0,90);
roundedRect.AddLine(rect.Right-cornerRadius*2,rect.Bottom,rect.X+cornerRadius*2,rect.Bottom);
roundedRect.AddArc(rect.X,rect.Bottom-cornerRadius*2,cornerRadius*2,cornerRadius*2,90,90);
roundedRect.AddLine(rect.X,rect.Bottom-cornerRadius*2,rect.X,rect.Y+cornerRadius*2);
roundedRect.CloseFigure();
returnroundedRect;
}
希望本文所述对大家的C#程序设计有所帮助。