protected override object CreateTileBrush(BaseFrameworkElement element)
{
Visual visual1 = element.Visual != null ? element.Visual.PlatformSpecificObject as Visual : (Visual)null;
if (visual1 == null)
{
return((object)null);
}
foreach (Visual visual2 in ElementUtilities.GetVisualTree(visual1))
{
if (MakeDrawingBrushCommand.IsMediaElementInstance(visual2))
{
this.showDrawingVideoWarning = true;
break;
}
}
Drawing drawing = MakeDrawingBrushCommand.SimplifyDrawing(MakeDrawingBrushCommand.CreateDrawing(visual1, false), Path.GetDirectoryName(this.SceneViewModel.ProjectContext.ProjectPath));
DrawingBrush drawingBrush = new DrawingBrush();
if (drawing != null)
{
drawingBrush.Drawing = drawing;
UIElement uiElement = visual1 as UIElement;
if (uiElement != null)
{
drawingBrush.Viewbox = new Rect(uiElement.RenderSize);
drawingBrush.ViewboxUnits = BrushMappingMode.Absolute;
}
}
return((object)drawingBrush);
}
private static Drawing SimplifyDrawingGroup(DrawingGroup drawingGroup, string projectPath)
{
for (int index = drawingGroup.Children.Count - 1; index >= 0; --index)
{
Drawing drawing = MakeDrawingBrushCommand.SimplifyDrawing(drawingGroup.Children[index], projectPath);
if (drawing == null)
{
drawingGroup.Children.RemoveAt(index);
}
else
{
drawingGroup.Children[index] = drawing;
}
}
if (drawingGroup.ClipGeometry == null)
{
drawingGroup.ClearValue(DrawingGroup.ClipGeometryProperty);
}
if (drawingGroup.Transform == null || drawingGroup.Transform.Value.IsIdentity)
{
drawingGroup.ClearValue(DrawingGroup.TransformProperty);
}
if (drawingGroup.Opacity >= 1.0)
{
drawingGroup.ClearValue(DrawingGroup.OpacityProperty);
}
if (drawingGroup.OpacityMask == null)
{
drawingGroup.ClearValue(DrawingGroup.OpacityMaskProperty);
}
if (drawingGroup.BitmapEffect == null)
{
drawingGroup.ClearValue(DrawingGroup.BitmapEffectProperty);
}
if (drawingGroup.BitmapEffectInput == null || drawingGroup.BitmapEffectInput.AreaToApplyEffect.IsEmpty && drawingGroup.BitmapEffectInput.Input == BitmapEffectInput.ContextInputSource)
{
drawingGroup.ClearValue(DrawingGroup.BitmapEffectInputProperty);
}
if (drawingGroup.Children.Count == 0 || drawingGroup.Opacity <= 0.0)
{
return((Drawing)null);
}
if (drawingGroup.Children.Count == 1 && drawingGroup.ClipGeometry == null && (drawingGroup.Transform == null || drawingGroup.Transform.Value.IsIdentity) && (drawingGroup.Opacity == 1.0 && drawingGroup.OpacityMask == null && drawingGroup.BitmapEffect == null))
{
return(drawingGroup.Children[0]);
}
return((Drawing)drawingGroup);
}
