public override void Render(RenderContext parentRenderContext)
{
if (OpacityMask == null && (TotalHeight > ActualHeight || TotalWidth > ActualWidth))
{
SolidColorBrush brush = new SolidColorBrush {
Color = Color.Black
};
OpacityMask = brush;
_forcedOpacityMask = true;
}
else if (_forcedOpacityMask && TotalHeight <= ActualHeight && TotalWidth <= ActualWidth && OpacityMask != null)
{
OpacityMask.Dispose();
OpacityMask = null;
_opacityMaskContext.Dispose();
_opacityMaskContext = null;
_forcedOpacityMask = false;
}
base.Render(parentRenderContext);
}
/// <summary>
/// Required to clip any items that are partially within the panel's bounds
/// </summary>
/// <param name="parentRenderContext"></param>
public override void Render(RenderContext parentRenderContext)
{
if (OpacityMask == null && _actualPhysicalOffset != 0)
{
SolidColorBrush brush = new SolidColorBrush {
Color = Color.Black
};
OpacityMask = brush;
_forcedOpacityMask = true;
}
else if (_forcedOpacityMask && _actualPhysicalOffset == 0 && OpacityMask != null)
{
OpacityMask.Dispose();
OpacityMask = null;
_opacityMaskContext.Dispose();
_opacityMaskContext = null;
_forcedOpacityMask = false;
}
base.Render(parentRenderContext);
}