private void SamplePage_Loaded(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
// Get backing visual from shadow container and interop compositor
_shadowContainer = ElementCompositionPreview.GetElementVisual(ShadowContainer);
_compositor = _shadowContainer.Compositor;
// Get CompositionImage, its sprite visual
_image = VisualTreeHelperExtensions.GetFirstDescendantOfType <CompositionImage>(ShadowContainer);
_imageVisual = _image.SpriteVisual;
// Load mask asset onto surface using helpers in SamplesCommon
_imageLoader = ImageLoaderFactory.CreateImageLoader(_compositor);
_imageMaskSurface = _imageLoader.CreateCircleSurface(200, Colors.White);
// Create surface brush for mask
CompositionSurfaceBrush mask = _compositor.CreateSurfaceBrush();
mask.Surface = _imageMaskSurface.Surface;
// Get surface brush from composition image
CompositionSurfaceBrush source = _image.SurfaceBrush as CompositionSurfaceBrush;
// Create mask brush for toggle mask functionality
_maskBrush = _compositor.CreateMaskBrush();
_maskBrush.Mask = mask;
_maskBrush.Source = source;
// Initialize toggle mask
_isMaskEnabled = false;
}
private void SamplePage_Loaded(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
// Get backing visual from shadow container and interop compositor
_shadowContainer = ElementCompositionPreview.GetElementVisual(ShadowContainer);
_compositor = _shadowContainer.Compositor;
// Get CompositionImage, its sprite visual
_image = VisualTreeHelperExtensions.GetFirstDescendantOfType<CompositionImage>(ShadowContainer);
_imageVisual = _image.SpriteVisual;
// Load mask asset onto surface using helpers in SamplesCommon
_imageLoader = ImageLoaderFactory.CreateImageLoader(_compositor);
_imageMaskSurface = _imageLoader.CreateCircleSurface(200, Colors.White);
// Create surface brush for mask
CompositionSurfaceBrush mask = _compositor.CreateSurfaceBrush();
mask.Surface = _imageMaskSurface.Surface;
// Get surface brush from composition image
CompositionSurfaceBrush source = _image.SurfaceBrush as CompositionSurfaceBrush;
// Create mask brush for toggle mask functionality
_maskBrush = _compositor.CreateMaskBrush();
_maskBrush.Mask = mask;
_maskBrush.Source = source;
// Initialize toggle mask
_isMaskEnabled = false;
}
/// <summary>
/// Creates the circle used in the circle brush if not already created.
/// </summary>
private void EnsureCircleBrush()
{
if (_circleBrush == null)
{
_imageLoader = ImageLoaderFactory.CreateImageLoader(_compositor);
_circleSurface = _imageLoader.CreateCircleSurface(200, Colors.White);
_circleBrush = _compositor.CreateSurfaceBrush(_circleSurface.Surface);
}
}
public ColorBloomTransitionHelper(UIElement hostForVisual)
{
this.hostForVisual = hostForVisual;
var visual = ElementCompositionPreview.GetElementVisual(hostForVisual);
_compositor = visual.Compositor;
_containerForVisuals = _compositor.CreateContainerVisual();
ElementCompositionPreview.SetElementChildVisual(hostForVisual, _containerForVisuals);
_imageLoader = ImageLoaderFactory.CreateImageLoader(_compositor);
_circleMaskSurface = _imageLoader.CreateCircleSurface(200, Colors.White);
}
/// <summary>
/// Creates an instance of the ColorBloomTransitionHelper.
/// Any visuals to be later created and animated will be hosted within the specified UIElement.
/// </summary>
public ColorBloomTransitionHelper(UIElement hostForVisual)
{
this.hostForVisual = hostForVisual;
// we have an element in the XAML tree that will host our Visuals
var visual = ElementCompositionPreview.GetElementVisual(hostForVisual);
_compositor = visual.Compositor;
// create a container
// adding children to this container adds them to the live visual tree
_containerForVisuals = _compositor.CreateContainerVisual();
ElementCompositionPreview.SetElementChildVisual(hostForVisual, _containerForVisuals);
// initialize the ImageLoader and create the circle mask
_imageLoader = ImageLoaderFactory.CreateImageLoader(_compositor);
_circleMaskSurface = _imageLoader.CreateCircleSurface(200, Colors.White);
}
/// <summary>
/// Creates an instance of the ColorBloomTransitionHelper.
/// Any visuals to be later created and animated will be hosted within the specified UIElement.
/// </summary>
public ColorBloomTransitionHelper(UIElement hostForVisual)
{
this.hostForVisual = hostForVisual;
// we have an element in the XAML tree that will host our Visuals
var visual = ElementCompositionPreview.GetElementVisual(hostForVisual);
_compositor = visual.Compositor;
// create a container
// adding children to this container adds them to the live visual tree
_containerForVisuals = _compositor.CreateContainerVisual();
ElementCompositionPreview.SetElementChildVisual(hostForVisual, _containerForVisuals);
// initialize the ImageLoader and create the circle mask
_imageLoader = ImageLoaderFactory.CreateImageLoader(_compositor);
_circleMaskSurface = _imageLoader.CreateCircleSurface(200, Colors.White);
}
/// <summary>
/// Creates the circle used in the circle brush if not already created.
/// </summary>
private void EnsureCircleBrush()
{
if (_circleBrush == null)
{
_imageLoader = ImageLoaderFactory.CreateImageLoader(_compositor);
_circleSurface = _imageLoader.CreateCircleSurface(200, Colors.White);
_circleBrush = _compositor.CreateSurfaceBrush(_circleSurface.Surface);
}
}
