/// <summary>
/// Invoke the pinching event.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The pinch event.</param>
internal void InvokePinching(View sender, PinchEvent e)
{
Pinching?.Invoke(sender, new PinchEventArgs(e));
if (e.State == GestureState.Ended && Command is ICommand cmd && cmd.CanExecute(CommandParameter))
{
cmd.Execute(CommandParameter);
}
}
private void OnPinch(PointerInput input)
{
var pinchDistance = Vector2.Distance(_posLastFirst, _posLastSecond);
var pinchInput = new PinchInput()
{
InputId = input.InputId,
PinchDistance = pinchDistance,
PinchDeltaDistance = pinchDistance - _pinchLastDistance,
Pointer0CurrentPosition = _posLastFirst,
Pointer0StartPosition = _pinchPosStartFirst,
Pointer1CurrentPosition = _posLastSecond,
Pointer1StartPosition = _pinchPosStartSecond
};
//Debug.Log($"{nameof(GestureController)}: pinching: {pinchInput}");
Pinching?.Invoke(pinchInput);
_pinchLastDistance = pinchDistance;
}
public InteractiveCanvas()
{
Panning.Handle(OnPanning);
Pinching.Handle(OnPinched);
UserRotating.Handle(UserRotated);
}