private void SimpleShapeImperative_Click(object sender, RoutedEventArgs e)
{
// Grab the compositor for the window
compositor = Window.Current.Compositor;
// Create a new ShapeVisual that will contain our drawings
Windows.UI.Composition.ShapeVisual shape = compositor.CreateShapeVisual();
// set this as a child of our host shape from XAML
SetVisualOnElement(shape);
// Create a circle geometry and set it's radius
var circleGeometry = compositor.CreateEllipseGeometry();
circleGeometry.Radius = new System.Numerics.Vector2(30, 30);
// Create a shape object from the geometry and give it a color and offset
var circleShape = compositor.CreateSpriteShape(circleGeometry);
circleShape.FillBrush = compositor.CreateColorBrush(Colors.Orange);
circleShape.Offset = new Vector2(50f, 50f);
// Add the circle to our shape visual
shape.Shapes.Add(circleShape);
}
private void SimplePathImperative_Click(object sender, RoutedEventArgs e)
{
// Same steps as for SimpleShapeImperative_Click to create, size and host a ShapeVisual
compositor = Window.Current.Compositor;
Windows.UI.Composition.ShapeVisual shape = compositor.CreateShapeVisual();
SetVisualOnElement(shape);
// use Win2D's CanvasPathBuilder to create a simple path
CanvasPathBuilder pathBuilder = new CanvasPathBuilder(CanvasDevice.GetSharedDevice());
pathBuilder.BeginFigure(1, 1);
pathBuilder.AddLine(300, 300);
pathBuilder.AddLine(1, 300);
pathBuilder.EndFigure(CanvasFigureLoop.Closed);
// create a Win2D CanvasGeomtryobject from the path
CanvasGeometry triangleGeometry = CanvasGeometry.CreatePath(pathBuilder);
// create a CompositionPath from the Win2D geometry
CompositionPath trianglePath = new CompositionPath(triangleGeometry);
// create a CompositionPathGeometry from the composition path
CompositionPathGeometry compositionPathGeometry = compositor.CreatePathGeometry(trianglePath);
// create a SpriteShape from the CompositionPathGeometry, give it a gradient fill and add to our ShapeVisual
CompositionSpriteShape spriteShape = compositor.CreateSpriteShape(compositionPathGeometry);
spriteShape.FillBrush = CreateGradientBrush();
shape.Shapes.Add(spriteShape);
}
private void PathMorphImperative_Click(object sender, RoutedEventArgs e)
{
// Same steps as for SimpleShapeImperative_Click to create, size and host a ShapeVisual
compositor = Window.Current.Compositor;
Windows.UI.Composition.ShapeVisual shape = compositor.CreateShapeVisual();
SetVisualOnElement(shape);
// Call helper functions that use Win2D to build square and circle path geometries and create CompositionPath's for them
CanvasGeometry square = BuildSquareGeometry();
CompositionPath squarePath = new CompositionPath(square);
CanvasGeometry circle = BuildCircleGeometry();
CompositionPath circlePath = new CompositionPath(circle);
// Create a CompositionPathGeometry, CompositionSpriteShape and set offset and fill
CompositionPathGeometry compositionPathGeometry = compositor.CreatePathGeometry(squarePath);
CompositionSpriteShape spriteShape = compositor.CreateSpriteShape(compositionPathGeometry);
spriteShape.Offset = new Vector2(150, 200);
spriteShape.FillBrush = CreateGradientBrush();
// Create a PathKeyFrameAnimation to set up the path morph passing in the circle and square paths
var playAnimation = compositor.CreatePathKeyFrameAnimation();
playAnimation.Duration = TimeSpan.FromSeconds(4);
playAnimation.InsertKeyFrame(0, squarePath);
playAnimation.InsertKeyFrame(0.3F, circlePath);
playAnimation.InsertKeyFrame(0.6F, circlePath);
playAnimation.InsertKeyFrame(1.0F, squarePath);
// Make animation repeat forever and start it
playAnimation.IterationBehavior = AnimationIterationBehavior.Forever;
playAnimation.Direction = Windows.UI.Composition.AnimationDirection.Alternate;
compositionPathGeometry.StartAnimation("Path", playAnimation);
// Add the SpriteShape to our shape visual
shape.Shapes.Add(spriteShape);
}
internal CompositionShapeCollection(Compositor compositor, ShapeVisual shapeVisual) : base(compositor)
=> this._shapeVisual = shapeVisual;
internal CompositionShapeCollection(ShapeVisual shapeVisual) => this.shapeVisual = shapeVisual;