public VisualCapturer(SilverlightSceneView sceneView, Size targetSize)
: base(targetSize)
{
SilverlightArtboard silverlightArtboard = (SilverlightArtboard)sceneView.Artboard;
Rect documentBounds = silverlightArtboard.DocumentBounds;
ImageHost silverlightImageHost = silverlightArtboard.SilverlightImageHost;
if (documentBounds.Width <= 0.0 || documentBounds.Height <= 0.0)
{
return;
}
using (new VisualCapturer.ImageHostActivator(silverlightImageHost))
{
silverlightImageHost.SetTransformMatrix(Matrix.Identity, new Vector(1.0, 1.0));
silverlightImageHost.Measure(documentBounds.Size);
silverlightImageHost.Arrange(documentBounds);
silverlightImageHost.UpdateLayout();
silverlightImageHost.Redraw(false);
double proportionalScale = RectExtensions.GetProportionalScale(documentBounds, targetSize);
documentBounds.Scale(proportionalScale, proportionalScale);
Image image1 = new Image();
image1.Source = silverlightImageHost.InternalSource;
image1.LayoutTransform = (Transform) new ScaleTransform(proportionalScale, proportionalScale);
Image image2 = image1;
image2.Measure(documentBounds.Size);
image2.Arrange(documentBounds);
this.DefaultSize = new Size(documentBounds.Width, documentBounds.Height);
this.visual = (Visual)image2;
}
}
private static Rect GetScaledRectangle(FrameworkElement element, Size targetSize, out double scale)
{
Rect rect = new Rect(0.0, 0.0, 0.0, 0.0);
element.Measure(rect.Size);
element.Arrange(rect);
element.UpdateLayout();
rect = new Rect(0.0, 0.0, element.ActualWidth, element.ActualHeight);
scale = RectExtensions.GetProportionalScale(rect, targetSize);
rect.Scale(scale, scale);
return(rect);
}