public override IBrush GetBrush(byte alpha)
{
if (_canvasLinearGradientBrush == null)
{
var startPoint = new Vector((float)_x0, (float)_y0);
var endPoint = new Vector((float)_x1, (float)_y1);
startPoint = LocalMatrix.Transform(startPoint);
endPoint = LocalMatrix.Transform(endPoint);
_canvasLinearGradientBrush = new ImmutableLinearGradientBrush(_canvasGradientStopCollection,
alpha / 255f,
startPoint: new RelativePoint(startPoint.X, startPoint.Y, RelativeUnit.Relative),
endPoint: new RelativePoint(endPoint.X, endPoint.Y, RelativeUnit.Relative));
}
return(_canvasLinearGradientBrush);
}
public void Dispose()
{
_canvasLinearGradientBrush = null;
}
