一起學Windows Phone7開發(十三.七 繪圖控制項)

來源:互聯網
上載者:User

Silverlight的繪圖能力是有目共睹的,那Phone7上也一樣不會差,以下就是其繪圖控制項。

一.InkPresenter:可以產生手寫效果的控制項。

XAML:

<InkPresenter Grid.Row="1" Height="512" HorizontalAlignment="Left" Margin="24,65,0,0" Name="inkPresenter1" VerticalAlignment="Top" Width="444"  LostMouseCapture="inkPresenter1_LostMouseCapture" MouseLeftButtonDown="inkPresenter1_MouseLeftButtonDown" MouseMove="inkPresenter1_MouseMove" Background="White"/>

代碼:

private void inkPresenter1_LostMouseCapture(object sender, MouseEventArgs e)
        {
            NewStroke = null;
        }

        private void inkPresenter1_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            inkPresenter1.CaptureMouse();
            StylusPointCollection spc = new StylusPointCollection();
            spc.Add(e.StylusDevice.GetStylusPoints(inkPresenter1));
            NewStroke = new Stroke();

            this.inkPresenter1.Strokes.Add(NewStroke);
        }

        private void inkPresenter1_MouseMove(object sender, MouseEventArgs e)
        {
            if (NewStroke != null)
                NewStroke.StylusPoints.Add(e.StylusDevice.GetStylusPoints(inkPresenter1));
        }

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