예제 #1
0
        protected override void Dispose(bool disposing)
        {
            base.Dispose(disposing);

            if (disposing && !_disposed)
            {
                _drawable?.Dispose();
                _disposed = true;
            }
        }
예제 #2
0
        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));
            }
        }