[WPF] 星星按鈕

最新推荐文章于 2013-07-19 12:26:00 发布

原创最新推荐文章于 2013-07-19 12:26:00 发布 · 2.2k 阅读

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本文介绍了一个使用WPF创建星星形状按钮的方法。通过Polygon绘制黄色五角星并设置填充规则为Nonzero实现完整填充，星星置于蓝色背景矩形上，整体布局居中。

WPF做一個星星按鈕,還蠻簡單的

using System; using System.Windows; using System.Windows.Controls; using System.Windows.Input; using System.Windows.Media; using System.Windows.Shapes; namespace Cloud.PainTheButton { public class PainTheButton : Window { [STAThread] public static void Main() { Application app = new Application(); app.Run(new PainTheButton()); } public PainTheButton() { this.Title = "Cloud Orz"; Button btn = new Button(); btn.HorizontalAlignment = HorizontalAlignment.Center; btn.VerticalAlignment = VerticalAlignment.Center; Content = btn; Canvas canv = new Canvas(); canv.Width = 144; canv.Height = 144; btn.Content = canv; Rectangle rect = new Rectangle(); rect.Width = canv.Width; rect.Height = canv.Height; rect.RadiusX = 24; rect.RadiusY = 24; rect.Fill = Brushes.Blue; canv.Children.Add(rect); Canvas.SetLeft(rect, 0); Canvas.SetTop(rect, 0); Polygon poly = new Polygon(); poly.Fill = Brushes.Yellow; poly.Points = new PointCollection(); for (int i = 0; i < 5; i++) { double angle = i * 4 * Math.PI / 5; Point pt = new Point(48 * Math.Sin(angle), -48 * Math.Cos(angle)); poly.Points.Add(pt); } // 修改FillRule = Nonzero填滿星星 poly.FillRule = FillRule.Nonzero; canv.Children.Add(poly); Canvas.SetLeft(poly, canv.Width/2); Canvas.SetTop(poly, canv.Height/2); } } }