void gestureRecognizer_ManipulationUpdated(Windows.UI.Input.GestureRecognizer sender, Windows.UI.Input.ManipulationUpdatedEventArgs args)
{
UpdateAngle((float)args.Delta.Translation.X, (float)args.Delta.Translation.Y);
}
internal FilterManipulationEventArgs(Windows.UI.Input.ManipulationUpdatedEventArgs args)
{
Delta = args.Delta;
Pivot = args.Position;
}
private void OnManipulationUpdated(Windows.UI.Input.GestureRecognizer sender, Windows.UI.Input.ManipulationUpdatedEventArgs args)
{
_deltaTransform.TranslateX = args.Delta.Translation.X;
_deltaTransform.TranslateY = args.Delta.Translation.Y;
_target.SetValue(Windows.UI.Xaml.Controls.Canvas.TopProperty, 0);
_target.SetValue(Windows.UI.Xaml.Controls.Canvas.LeftProperty, 0);
// Because of the way we process pointer events, all coordinates are expressed
// in the coordinate system of the reference of the manipulation target.
// args.Position stores the position of the pivot of this manipulation
// args.Delta stores the deltas (Translation, Rotation in degrees, and Scale)
var filteredArgs = new FilterManipulationEventArgs(args);
OnFilterManipulation?.Invoke(this, filteredArgs);
// Update the transform
// filteredArgs.Pivot indicates the position of the pivot of this manipulation
// filteredArgs.Delta indicates the deltas (Translation, Rotation in degrees, and Scale)
_previousTransform.Matrix = _transform.Value;
_deltaTransform.CenterX = filteredArgs.Pivot.X;
_deltaTransform.CenterY = filteredArgs.Pivot.Y;
_deltaTransform.Rotation = filteredArgs.Delta.Rotation;
_deltaTransform.TranslateX = filteredArgs.Delta.Translation.X;
_deltaTransform.TranslateY = filteredArgs.Delta.Translation.Y;
if (ZoomBehavior == Controls.ZoomType.Resize)
{
_target.Height = _target.ActualHeight * filteredArgs.Delta.Scale;
_target.Width = _target.ActualWidth * filteredArgs.Delta.Scale;
}
else if (ZoomBehavior == Controls.ZoomType.Scale)
{
_deltaTransform.ScaleX = _deltaTransform.ScaleY = filteredArgs.Delta.Scale;
}
}
private void OnManipulationUpdated(Windows.UI.Input.GestureRecognizer sender, Windows.UI.Input.ManipulationUpdatedEventArgs args)
{
// Because of the way we process pointer events, all coordinates are expressed
// in the coordinate system of the reference of the manipulation target.
// args.Position stores the position of the pivot of this manipulation
// args.Delta stores the deltas (Translation, Rotation in degrees, and Scale)
var filteredArgs = new FilterManipulationEventArgs(args);
if (OnFilterManipulation != null)
{
OnFilterManipulation(this, filteredArgs);
}
// Update the transform
// filteredArgs.Pivot indicates the position of the pivot of this manipulation
// filteredArgs.Delta indicates the deltas (Translation, Rotation in degrees, and Scale)
this._previousTransform.Matrix = _transform.Value;
this._deltaTransform.CenterX = filteredArgs.Pivot.X;
this._deltaTransform.CenterY = filteredArgs.Pivot.Y;
this._deltaTransform.Rotation = filteredArgs.Delta.Rotation;
this._deltaTransform.ScaleX = _deltaTransform.ScaleY = filteredArgs.Delta.Scale;
this._deltaTransform.TranslateX = filteredArgs.Delta.Translation.X;
this._deltaTransform.TranslateY = filteredArgs.Delta.Translation.Y;
}
static void gr_ManipulationUpdated(Windows.UI.Input.GestureRecognizer sender, Windows.UI.Input.ManipulationUpdatedEventArgs args)
{
if (OnGestureRaised != null)
{
OnGestureRaised(sender, new CustomGestureArgs()
{
ManipulationUpdatedArgs = args
});
}
}
