private void OnGestureCompleted(object sender, GestureEventArgs e)
{
if (_isDragging)
{
var args = new DragCompletedGestureEventArgs(
new Point(0.0, 0.0),
new Point(0.0, 0.0),
new Point(0.0, 0.0),
Orientation.Vertical,
new Point(0.0, 0.0));
if (_lastDragDeltaEventArgs != null)
{
args = new DragCompletedGestureEventArgs(
new Point(0.0, 0.0),
new Point(0.0, 0.0),
new Point(_lastDragDeltaEventArgs.HorizontalChange, _lastDragDeltaEventArgs.VerticalChange),
_lastDragDeltaEventArgs.Direction,
new Point(0.0, 0.0));
}
_isDragging = false;
OnDragCompleted(sender, args);
}
}
protected virtual void RaiseClose(DragCompletedGestureEventArgs e)
{
var handler = Close;
if (handler != null)
{
handler(this, e);
}
}
private void OnDragCompleted(object sender, DragCompletedGestureEventArgs e)
{
if (!IsEnabled)
{
return;
}
//if (CurrentScaleX != 1.0)
//{
// return;
//}
//var frameworkElement = sender as FrameworkElement;
//var transform = frameworkElement.RenderTransform as CompositeTransform;
//if (DebugText != null)
//{
// DebugText.Text = string.Format("DragCompleted TranslateX={0} TranslateY={1}", transform.TranslateX, transform.TranslateY);
//}
//if (_direction == Orientation.Vertical)
//{
// if (Math.Abs(transform.TranslateY) > 100)
// {
// RaiseClose(e);
// return;
// }
// else
// {
// var storyboard = new Storyboard();
// var translateAnimation = new DoubleAnimationUsingKeyFrames();
// translateAnimation.KeyFrames.Add(new EasingDoubleKeyFrame { KeyTime = TimeSpan.FromSeconds(0.25), Value = 0.0, EasingFunction = new ExponentialEase { EasingMode = EasingMode.EaseOut, Exponent = 6.0 } });
// Storyboard.SetTarget(translateAnimation, frameworkElement);
// Storyboard.SetTargetProperty(translateAnimation, new PropertyPath("(UIElement.RenderTransform).(CompositeTransform.TranslateY)"));
// storyboard.Children.Add(translateAnimation);
// storyboard.Begin();
// if (BackgroundPanel != null)
// {
// BackgroundPanel.Opacity = 1.0;
// //BackgroundPanel.Background = new SolidColorBrush(Colors.Black);
// }
// }
//}
//else if (_direction == Orientation.Horizontal && Math.Abs(transform.TranslateX) < 150)
//{
// var storyboard = new Storyboard();
// var translateAnimation = new DoubleAnimationUsingKeyFrames();
// translateAnimation.KeyFrames.Add(new EasingDoubleKeyFrame { KeyTime = TimeSpan.FromSeconds(0.15), Value = 0.0, EasingFunction = new ExponentialEase { EasingMode = EasingMode.EaseOut, Exponent = 6.0 } });
// Storyboard.SetTarget(translateAnimation, img);
// Storyboard.SetTargetProperty(translateAnimation, new PropertyPath("(UIElement.RenderTransform).(CompositeTransform.TranslateX)"));
// storyboard.Children.Add(translateAnimation);
// storyboard.Begin();
//}
_direction = null;
}
private void OnDragCompleted(object sender, DragCompletedGestureEventArgs e)
{
//System.Diagnostics.Debug.WriteLine("OnDragCompleted IsEnabled=" + IsEnabled + " horizontal_change=" + e.HorizontalChange + " vertical_change=" + e.VerticalChange + " direction=" + e.Direction + " horizontal_velocity=" + e.HorizontalVelocity + " vertical_velocity=" + e.VerticalVelocity);
_isDragging = false;
if (!IsEnabled)
{
return;
}
if (CurrentScaleX != 1.0)
{
return;
}
var frameworkElement = sender as FrameworkElement;
var transform = frameworkElement.RenderTransform as CompositeTransform;
if (DebugText != null)
{
DebugText.Text = string.Format("DragCompleted TranslateX={0} TranslateY={1}", transform.TranslateX, transform.TranslateY);
}
if (_direction == Orientation.Vertical)
{
if (SuppressDrag)
{
return;
}
if (Math.Abs(transform.TranslateY) > 100)
{
RaiseClose(new PanAndZoomCloseEventArgs {
VerticalChange = e.VerticalChange
});
return;
}
else
{
var storyboard = new Storyboard();
var translateAnimation = new DoubleAnimationUsingKeyFrames();
translateAnimation.KeyFrames.Add(new EasingDoubleKeyFrame {
KeyTime = TimeSpan.FromSeconds(0.25), Value = 0.0, EasingFunction = new ExponentialEase {
EasingMode = EasingMode.EaseOut, Exponent = 6.0
}
});
Storyboard.SetTarget(translateAnimation, frameworkElement);
Storyboard.SetTargetProperty(translateAnimation, new PropertyPath("(UIElement.RenderTransform).(CompositeTransform.TranslateY)"));
storyboard.Children.Add(translateAnimation);
storyboard.Begin();
if (BackgroundPanel != null)
{
BackgroundPanel.Opacity = 1.0;
//BackgroundPanel.Background = new SolidColorBrush(Colors.Black);
}
}
}
//else if (_direction == Orientation.Horizontal && Math.Abs(transform.TranslateX) < 150)
//{
// var storyboard = new Storyboard();
// var translateAnimation = new DoubleAnimationUsingKeyFrames();
// translateAnimation.KeyFrames.Add(new EasingDoubleKeyFrame { KeyTime = TimeSpan.FromSeconds(0.15), Value = 0.0, EasingFunction = new ExponentialEase { EasingMode = EasingMode.EaseOut, Exponent = 6.0 } });
// Storyboard.SetTarget(translateAnimation, img);
// Storyboard.SetTargetProperty(translateAnimation, new PropertyPath("(UIElement.RenderTransform).(CompositeTransform.TranslateX)"));
// storyboard.Children.Add(translateAnimation);
// storyboard.Begin();
//}
_direction = null;
}
