private void ObserveInput(CanvasShape canvasShape, IControl target)
{
canvasShape.Downs = Observable.FromEventPattern <PointerPressedEventArgs>(
target,
"PointerPressed").Select(e =>
{
var p = e.EventArgs.GetPosition(target);
return(new Point2(
canvasShape.EnableSnap ? canvasShape.Snap(p.X, canvasShape.SnapX) : p.X,
canvasShape.EnableSnap ? canvasShape.Snap(p.Y, canvasShape.SnapY) : p.Y));
});
canvasShape.Ups = Observable.FromEventPattern <PointerReleasedEventArgs>(
target,
"PointerReleased").Select(e =>
{
var p = e.EventArgs.GetPosition(target);
return(new Point2(
canvasShape.EnableSnap ? canvasShape.Snap(p.X, canvasShape.SnapX) : p.X,
canvasShape.EnableSnap ? canvasShape.Snap(p.Y, canvasShape.SnapY) : p.Y));
});
canvasShape.Moves = Observable.FromEventPattern <PointerEventArgs>(
target,
"PointerMoved").Select(e =>
{
var p = e.EventArgs.GetPosition(target);
return(new Point2(
canvasShape.EnableSnap ? canvasShape.Snap(p.X, canvasShape.SnapX) : p.X,
canvasShape.EnableSnap ? canvasShape.Snap(p.Y, canvasShape.SnapY) : p.Y));
});
bool captured = false;
canvasShape.IsCaptured = () => captured;
canvasShape.Capture = () => captured = true;
canvasShape.ReleaseCapture = () => captured = false;
}
private void ObserveInput(CanvasShape canvasShape, UIElement target)
{
canvasShape.Downs = Observable.FromEventPattern <MouseButtonEventArgs>(
target,
"PreviewMouseLeftButtonDown").Select(e =>
{
var p = e.EventArgs.GetPosition(target);
return(new Point2(
canvasShape.EnableSnap ? canvasShape.Snap(p.X, canvasShape.SnapX) : p.X,
canvasShape.EnableSnap ? canvasShape.Snap(p.Y, canvasShape.SnapY) : p.Y));
});
canvasShape.Ups = Observable.FromEventPattern <MouseButtonEventArgs>(
target,
"PreviewMouseLeftButtonUp").Select(e =>
{
var p = e.EventArgs.GetPosition(target);
return(new Point2(
canvasShape.EnableSnap ? canvasShape.Snap(p.X, canvasShape.SnapX) : p.X,
canvasShape.EnableSnap ? canvasShape.Snap(p.Y, canvasShape.SnapY) : p.Y));
});
canvasShape.Moves = Observable.FromEventPattern <MouseEventArgs>(
target,
"PreviewMouseMove").Select(e =>
{
var p = e.EventArgs.GetPosition(target);
return(new Point2(
canvasShape.EnableSnap ? canvasShape.Snap(p.X, canvasShape.SnapX) : p.X,
canvasShape.EnableSnap ? canvasShape.Snap(p.Y, canvasShape.SnapY) : p.Y));
});
canvasShape.IsCaptured = () => Mouse.Captured == target;
canvasShape.Capture = () => target.CaptureMouse();
canvasShape.ReleaseCapture = () => target.ReleaseMouseCapture();
}
