C#中怎么重写button让button显示为圆形
- 提问者网友：溺爱和你
- 2021-05-03 17:10
- 五星知识达人网友：过活
- 2021-05-03 17:56
- 1楼网友：傲气稳了全场
- 2021-05-03 18:42
一般这种情况，都是用图片代替按钮的~~
都有onclick事件啊~~
- 2楼网友：第四晚心情
- 2021-05-03 18:30
给你找了一个。
/// <summary> /// 绘制圆形按钮 /// </summary> public void DrawRoundButton(Graphics g) { GraphicsPath path = new GraphicsPath(); path = path=DrawButtonFade(this.buttonPath , g ,this.backColor, this.frontColor); Region region = new Region(path); this.Bounds = rectangle; this.Region = region; }
/// <summary> /// 绘制按下的按钮 /// </summary> public void DrawPushedButton(Graphics g) { GraphicsPath path = new GraphicsPath(); path=DrawButtonFade(this.buttonPath , g ,this.frontColor , this.backColor); Region region = new Region(path); this.Bounds = rectangle; this.Region = region; }
/// <summary> /// 获取绘制按钮区域 /// </summary> public void GetButtonRegion() { roundRect = new Rectangle(0,0,this.Width,this.Height);//设置画椭圆区域 rectangle = new Rectangle(this.Left,this.Top,this.Width,this.Height);//设定按钮显示位置和最大响应范围,只能是矩形 buttonCenter = new Point ((int)this.Width/2 , (int)this.Height/2); //绘制立体效果中心 }
protected override void OnPaint(PaintEventArgs pevent) { // TODO: 添加 RoundButton.OnPaint 实现 base.OnPaint (pevent); Graphics g = pevent.Graphics ; GetButtonRegion(); if(this.isPushed != false) this.DrawPushedButton(g); else this.DrawRoundButton(g); }
/// <summary> /// 绘制不同形状的按钮 /// </summary> public GraphicsPath DrawButtonFade(int fade, Graphics g, Color center, Color edge) { GraphicsPath path = new GraphicsPath(); switch(fade) { case 0: path.AddEllipse(roundRect);//在路径中画椭圆 PathGradientBrush pthGrBrush0 = new PathGradientBrush(path);// 选取画刷 pthGrBrush0.CenterColor = center; pthGrBrush0.CenterPoint = this.buttonCenter; Color[] colors0 = {edge}; pthGrBrush0.SurroundColors = colors0; g.FillEllipse(pthGrBrush0,roundRect); break; case 1: path.AddRectangle(roundRect);//在路径中画矩形 PathGradientBrush pthGrBrush1 = new PathGradientBrush(path);// 选取画刷 pthGrBrush1.CenterColor = center; pthGrBrush1.CenterPoint = this.buttonCenter; Color[] colors1 = {edge}; pthGrBrush1.SurroundColors = colors1; g.FillRectangle(pthGrBrush1,roundRect); break; case 2: Point[] TriagleArray = { new Point(this.Width/2 , 0), new Point(0,this.Height), new Point(this.Width ,this.Height), new Point(this.Width/2 , 0) }; path.AddLines(TriagleArray);//在路径中画三角形 PathGradientBrush pthGrBrush2 = new PathGradientBrush(path);// 选取画刷 pthGrBrush2.CenterColor = center; pthGrBrush2.CenterPoint = this.buttonCenter; Color[] colors2 = {edge}; pthGrBrush2.SurroundColors = colors2; g.FillRectangle(pthGrBrush2,roundRect); break;
default: path.AddEllipse(roundRect);//默认：在路径中画椭圆 PathGradientBrush pthGrBrushDe = new PathGradientBrush(path);// 选取画刷 pthGrBrushDe.CenterColor = center; pthGrBrushDe.CenterPoint = this.buttonCenter; Color[] colorsDe = {edge}; pthGrBrushDe.SurroundColors = colorsDe; g.FillEllipse(pthGrBrushDe,roundRect); break;
} return path; }