public void SlideRight(double velocity, System.Action callback = null)
{
if (velocity == 0.0)
{
velocity = 480.0 + 12.0;
}
var transform = ImagesGrid.RenderTransform as CompositeTransform;
if (transform == null)
{
return;
}
var translationX = 480.0 + 12.0;
var duration = PanAndZoomBehavior.Clamp((translationX - transform.TranslateX) / velocity, .15, .35);
#if !NO_RIBBON
Ribbon.ScrollPrevious(duration);
#endif
var storyboard = new Storyboard();
var translateAnimation = new DoubleAnimation();
translateAnimation.To = translationX;
translateAnimation.Duration = new Duration(TimeSpan.FromSeconds(duration));
Storyboard.SetTarget(translateAnimation, transform);
Storyboard.SetTargetProperty(translateAnimation, new PropertyPath("TranslateX"));
storyboard.Children.Add(translateAnimation);
storyboard.Begin();
//MainGrid.IsHitTestVisible = false;
_slideAnimating = true;
storyboard.Completed += (sender, args) =>
{
//Deployment.Current.Dispatcher.BeginInvoke(() =>
// {
//MainGrid.IsHitTestVisible = true;
_slideAnimating = false;
//});
//MainGrid.IsHitTestVisible = true;
transform.TranslateX = 0.0;
Grid.SetColumn(Item1, Grid.GetColumn(Item1) + 1 > 2 ? 0 : Grid.GetColumn(Item1) + 1);
Grid.SetColumn(Item2, Grid.GetColumn(Item2) + 1 > 2 ? 0 : Grid.GetColumn(Item2) + 1);
Grid.SetColumn(Item3, Grid.GetColumn(Item3) + 1 > 2 ? 0 : Grid.GetColumn(Item3) + 1);
SetPanAndZoom();
//return;
ViewModel.SlideRight();
//return;
SetControlContent(0, ViewModel.PreviousItem);
callback.SafeInvoke();
};
}
public void Move(double percent)
{
percent = PanAndZoomBehavior.Clamp(percent, -1.0, 1.0);
var translateX = percent < 0.0
? _translationX - (_minTranslationX - _translationX) * percent
: _translationX + (_maxTranslationX - _translationX) * percent;
//Transform.X = translateX;
if (_currentImage != null)
{
_currentImage.Width = _currentImage.ExpandedWidth - (_currentImage.ExpandedWidth - RibbonImageControl.MinExpandedWidth) * Math.Abs(percent);
}
_toImage = percent < 0.0 ? _nextImage : _previousImage;
if (_toImage != null)
{
_toImage.Width = RibbonImageControl.MinExpandedWidth + (_toImage.ExpandedWidth - RibbonImageControl.MinExpandedWidth) * Math.Abs(percent);
}
_toContainer = percent < 0.0 ? _nextContainer : _previousContainer;
var x = 0.0;
for (var i = 0; i < Items.Items.Count; i++)
{
ContentPresenter container;
var image = FindAtIndex <RibbonImageControl>(Items, i, out container);
if (container != null)
{
container.RenderTransform = new TranslateTransform {
X = x + translateX
};
x += image.Width;
//if (container == _toContainer)
//{
// x += _toImage.Width;
//}
//else if (container == _currentContainer)
//{
// x += _currentImage.Width;
//}
//else if (container != null)
//{
// x += image.Width;
//}
}
}
}
private void ImagesGrid_OnManipulationDelta(object sender, ManipulationDeltaEventArgs e)
{
e.Handled = true;
if (_panAndZoomBehavior.CurrentScaleX > 1.0)
{
return;
}
if (_slideAnimating)
{
return;
}
if (_verticalDrag == null)
{
_verticalDrag = Math.Abs(e.DeltaManipulation.Translation.Y) >
Math.Abs(e.DeltaManipulation.Translation.X);
}
if (_verticalDrag == false)
{
var transform = ImagesGrid.RenderTransform as CompositeTransform;
if (transform == null)
{
return;
}
if (e.CumulativeManipulation.Translation.X < 0.0 &&
ViewModel.CanSlideLeft)
{
transform.TranslateX += e.DeltaManipulation.Translation.X;
}
else if (e.CumulativeManipulation.Translation.X > 0.0 &&
ViewModel.CanSlideRight)
{
transform.TranslateX += e.DeltaManipulation.Translation.X;
}
var percent = transform.TranslateX / 480.0;
#if !NO_RIBBON
Ribbon.Move(percent);
#endif
transform.TranslateX = PanAndZoomBehavior.Clamp(transform.TranslateX, -480.0 - 12.0, 480.0 + 12.0);
_panAndZoomBehavior.IsEnabled = transform.TranslateX == 0.0;
}
else
{
var transform = ImagesGrid.RenderTransform as CompositeTransform;
if (transform == null)
{
return;
}
var translate = new CompositeTransform
{
TranslateX = 0,
TranslateY = e.CumulativeManipulation.Translation.Y
};
var rootFrameHeight = ((PhoneApplicationFrame)Application.Current.RootVisual).ActualHeight;
var deltaY = Math.Abs(translate.TranslateY + translate.ScaleY * transform.TranslateY + (translate.ScaleY - 1) * (transform.CenterY - translate.CenterY));
var opacity = (rootFrameHeight - deltaY) / rootFrameHeight;
var backgroundBrush = (SolidColorBrush)BackgroundBorder.Background;
var backgroundColor = backgroundBrush.Color;
backgroundColor.A = (byte)(opacity * byte.MaxValue);
BackgroundBorder.Opacity = opacity;
ImagesGrid.RenderTransform = translate;
_panAndZoomBehavior.IsEnabled = translate.TranslateY == 0.0;
}
}