/// <summary>
/// Creates a shape and adds it to the canvas.
/// </summary>
/// <param name="shapeId">The ID of the shape to add.</param>
/// <returns>Async task.</returns>
private async Task CreateShape(Guid shapeId)
{
// create a shape UI element
Rectangle shape = null;
await App.Current.Dispatcher.InvokeAsync(() =>
{
RotateTransform rotation = new RotateTransform()
{
Angle = 0, CenterX = 50, CenterY = 50
};
shape = new Rectangle()
{
Height = 100,
Width = 100,
Stroke = new SolidColorBrush(Colors.Yellow),
StrokeThickness = 5,
RadiusX = 20,
RadiusY = 20,
RenderTransform = rotation
};
});
// get the current shape position from the shape actor service
ActorId actorId = new ActorId($"{ClientId:N}_{shapeId:N}");
IShapeActor shapeActor = ActorProxy.Create <IShapeActor>(actorId, "ShapeActor");
var currentShape = await shapeActor.GetCurrentPositionAsync();
// subscribe this shape to all shape change events
var shapesEventHandler = new ShapeEventsHandler(ShapesCanvas, shape);
// save the shape state
shapes.Add(shapeId, new ShapeState(shapeActor, shapesEventHandler));
shapesEventHandler.ShapeChanged(currentShape);
}
/// <summary>
/// Creates a new shape and adds it to the canvas.
/// </summary>
/// <param name="shapeId">The ID of the shape to add.</param>
/// <returns>Async task.</returns>
private async Task CreateNewShape(Guid shapeId)
{
// create a shape UI element
RotateTransform rotation = new RotateTransform()
{
Angle = 0, CenterX = 50, CenterY = 50
};
Rectangle shape = new Rectangle()
{
Height = 100,
Width = 100,
Stroke = new SolidColorBrush(Colors.Yellow),
StrokeThickness = 5,
RadiusX = 20,
RadiusY = 20,
RenderTransform = rotation
};
// create a new shape
ActorId actorId = new ActorId(shapeId);
IShapeActor shapeActor = ActorProxy.Create <IShapeActor>(actorId, shapeActorServiceUri);
var currentShape = await shapeActor.GetCurrentPositionAsync();
// subscribe to all shape change events
var shapeEventHandler = new ShapeEventsHandler(ShapesCanvas, shape);
await shapeActor.SubscribeAsync <IShapeEvents>(shapeEventHandler, new TimeSpan(0, 0, 5));
// save the shape state
shapes.Add(shapeId, new ShapeState(shapeActor, shapeEventHandler));
}
/// <summary>
/// Default constructor.
/// </summary>
/// <param name="shape">The shape.</param>
/// <param name="shapeEventHandler">The shape event handler.</param>
public ShapeState(IShapeActor shape, ShapeEventsHandler shapeEventHandler)
{
this.Shape = shape;
this.ShapeEventHandler = shapeEventHandler;
}