标签：c style class blog code java
使用Visual来画图，可以使用其派生类，UIElement、Viewport3DVisual用于呈现3D内容，其他可以用来画图的为DrawingVisual，使用DrawingVisual可以使用编程的方式来实现复杂的图形实现，当使用DrawingVisual，必须使用FrameworkElement作为宿主容器，用来提供DrawingVisual所缺乏的布局和事件支持。下面实现了使用DrawingVisual来实现进度条，主要使用RectAnimation来实现。DrawRoundedRectangle(Brush brush, Pen pen, Rect rectangle, AnimationClock rectangleAnimations, double radiusX, AnimationClock radiusXAnimations, double radiusY, AnimationClock radiusYAnimations)方法的使用RectAnimation对象的AnimationClock对 Rec进行动画处理。
RectAnimation myRectAnimation; public override System.Windows.Media.Visual drawShape() { DrawingVisual drawingWordsVisual = new DrawingVisual(); DrawingContext drawingContext = drawingWordsVisual.RenderOpen(); try { Rect rect2 = new Rect(currentLayout.StartPoint.X,
currentLayout.StartPoint.Y, VisusalSize.Width, 3); Rect rect3 = new Rect(currentLayout.StartPoint.X,
currentLayout.StartPoint.Y, VisusalSize.Width, 3); Rect rect1 = new Rect(currentLayout.StartPoint.X, currentLayout.StartPoint.Y, 0, 3); //Rect rect4 = new Rect(currentLayout.StartPoint.X, currentLayout.StartPoint.Y, VisusalSize.Width*0.5, 0); myRectAnimation = new RectAnimation(); myRectAnimation.Duration = TimeSpan.FromSeconds(10); myRectAnimation.FillBehavior = FillBehavior.HoldEnd; myRectAnimation.From = rect1; //myRectAnimation.By = rect4; myRectAnimation.To = rect3; _showFilePanelClock = myRectAnimation.CreateClock(); _showFilePanelClock.Controller.Pause(); GradientStop gs1 = new GradientStop(Color.FromRgb(49, 158,
222), 1); GradientStop gs2 = new GradientStop(Color.FromRgb(69, 182,
233), 1); GradientStopCollection gsc = new GradientStopCollection(); gsc.Add(gs1); gsc.Add(gs2); Brush colorbrush = new LinearGradientBrush(gsc,
new Point(0, 1), new Point(0, 0.8)); Brush solidBrush = new SolidColorBrush(Color.FromRgb(203,
203, 203)); drawingContext.DrawRectangle(solidBrush, new Pen(), rect2); drawingContext.DrawRoundedRectangle(colorbrush, new Pen(),
rect1, _showFilePanelClock, 2, null, 2, null); } catch (Exception ex) { new SaveExceptionInfo().SaveLogAsTXTInfoex(ex.Message); } finally { drawingContext.Close(); } return drawingWordsVisual; }
使用下面的方法来控制进度条的进度，根据要显示的百分比，使用ClockController.Seek来控制进度条的进度。
public void FilesavedSize_saveSizeChanged(object sender, SendFileEventArgs args) { double percent = double.Parse(args.SavedSize.ToString())
/ double.Parse(args.FileSize.ToString()); TimeSpan timeSpan = TimeSpan.FromMilliseconds(percent * 10000); _showFilePanelClock.Controller.Seek(timeSpan,
TimeSeekOrigin.BeginTime);
_showFilePanelClock.Controller.Pause();
}
RectAnimation用于在DrawingVisual画进度条,布布扣,bubuko.com
RectAnimation用于在DrawingVisual画进度条
标签：c style class blog code java
原文地址：http://www.cnblogs.com/goxmpx/p/3759911.html
