protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
if (disposing && !_disposed)
{
_drawable?.Dispose();
_disposed = true;
}
}
protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
{
var pancake = Element as CanvasView;
Validate(pancake);
base.OnElementPropertyChanged(sender, e);
if (e.PropertyName == CanvasView.BorderColorProperty.PropertyName ||
e.PropertyName == CanvasView.BorderThicknessProperty.PropertyName ||
e.PropertyName == CanvasView.BorderIsDashedProperty.PropertyName ||
e.PropertyName == CanvasView.BorderDrawingStyleProperty.PropertyName ||
e.PropertyName == CanvasView.BorderGradientAngleProperty.PropertyName ||
e.PropertyName == CanvasView.BorderGradientEndColorProperty.PropertyName ||
e.PropertyName == CanvasView.BorderGradientStartColorProperty.PropertyName ||
e.PropertyName == CanvasView.BorderGradientStopsProperty.PropertyName)
{
Invalidate();
}
else if (e.PropertyName == CanvasView.SidesProperty.PropertyName ||
e.PropertyName == CanvasView.OffsetAngleProperty.PropertyName ||
e.PropertyName == CanvasView.HasShadowProperty.PropertyName ||
e.PropertyName == CanvasView.ElevationProperty.PropertyName)
{
SetupShadow(pancake);
}
else if (e.PropertyName == CanvasView.CornerRadiusProperty.PropertyName)
{
Invalidate();
SetupShadow(pancake);
}
else if (e.PropertyName == VisualElement.BackgroundColorProperty.PropertyName)
{
_drawable.Dispose();
this.SetBackground(_drawable = new CanvasDrawable(pancake, Context.ToPixels));
}
}