public void ResetClip()
{
if (clipLayer != null)
{
Control.PopLayer();
clipLayer.Dispose();
clipLayer = null;
clipBounds = new RectangleF(Control.Size.ToEto());
}
}
/// <summary>
/// Pushes an opacity value.
/// </summary>
/// <param name="opacity">The opacity.</param>
/// <returns>A disposable used to undo the opacity.</returns>
public IDisposable PushOpacity(double opacity)
{
if (opacity < 1)
{
var parameters = new LayerParameters
{
ContentBounds = RectangleF.Infinite,
MaskTransform = Matrix3x2.Identity,
Opacity = (float)opacity,
};
var layer = new Layer(_renderTarget);
_renderTarget.PushLayer(ref parameters, layer);
return Disposable.Create(() =>
{
_renderTarget.PopLayer();
layer.Dispose();
});
}
else
{
return Disposable.Empty;
}
}
