C# 绘制圆角矩形
給控件增加一个圆角矩形比较的好看，看一下实现的代码 protected override void OnPaint(System.Windows.Forms.PaintEventArgs e) { base.OnPaint(e); //在这里可以做一些GDI++操作，以生成更美观的界面 GraphicsPath path = new GraphicsPath(); int nHeight=this.Size.Height; int nWidth = this.Size.Width; int nNum = 10; int nR1 = nHeight / nNum; int nR2 = nWidth / nNum; int nR = Math.Min(nR1, nR2); int nBorderX=2; int nBorderY=2; /*************************************************/ //圆角矩形结构 // // H G // A F // // // B E // C D // // // 270 // // 180 0 // // 90 /*************************************************/ Point ptA = new Point(nBorderX, nBorderY + nR); Point ptB = new Point(nBorderX, nHeight - nBorderY - nR); path.AddLine(ptA, ptB); Point ptC = new Point(nBorderX + nR, nHeight - nBorderY); Rectangle rcBC = new Rectangle(nBorderX, nHeight - nBorderY - 2 * nR, 2 * nR, 2 * nR); path.AddArc(rcBC, 180F, -90F); Point ptD = new Point(nWidth - nBorderX - nR, nHeight - nBorderY); path.AddLine(ptC, ptD); Point ptE = new Point(nWidth - nBorderX, nHeight - nBorderY - nR); Rectangle rcDE = new Rectangle(ptD.X-nR, ptD.Y-2*nR, 2 * nR, 2 * nR); path.AddArc(rcDE, 90F, -90F); Point ptF = new Point(nWidth - nBorderX, nBorderY + nR); path.AddLine(ptE, ptF); Point ptG = new Point(nWidth - nBorderX - nR,nBorderY); Rectangle rcFG = new Rectangle(ptF.X-2*nR,ptG.Y,2 * nR, 2 * nR); path.AddArc(rcFG, 0, -90F); Point ptH = new Point(nBorderX + nR, nBorderY); path.AddLine(ptG, ptH); Rectangle rcHA = new Rectangle(ptA.X, ptH.Y, 2 * nR, 2 * nR); path.AddArc(rcHA, 270F, -90F); e.Graphics.DrawPath(Pens.White, path); /******************************完成增加圆角矩形******************************************/ }查看完整版本： C# 绘制圆角矩形
Tags: 圆角矩形
