private void Clear()
{
_selectedIndex = -1;
_minTranslationX = 0.0;
_maxTranslationX = 0.0;
_translationX = 0.0;
_previousImage = null;
_currentImage = null;
_nextImage = null;
}
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;
//}
}
}
}
public bool ScrollTo(int index, double duration)
{
if (index == _selectedIndex)
{
AnimatePosition(_currentImage, _currentImage != null ? _currentImage.ExpandedWidth : RibbonImageControl.MinExpandedWidth, _toImage, RibbonImageControl.MinExpandedWidth, Transform, _translationX, duration);
return(true);
}
ContentPresenter fromContainer;
ContentPresenter toContainer;
var fromItem = FindAtIndex <RibbonImageControl>(Items, _selectedIndex, out fromContainer);
var toItem = FindAtIndex <RibbonImageControl>(Items, index, out toContainer);
if (toItem == null)
{
var translationX = index > _selectedIndex ? _minTranslationX : _maxTranslationX;
AnimatePosition(fromItem, RibbonImageControl.MinExpandedWidth, null, 0, Transform, translationX, duration);
return(false);
}
_selectedIndex = index;
_previousImage = FindAtIndex <RibbonImageControl>(Items, _selectedIndex - 1, out _previousContainer);
_currentImage = toItem;
_currentContainer = toContainer;
_nextImage = FindAtIndex <RibbonImageControl>(Items, _selectedIndex + 1, out _nextContainer);
_minTranslationX = -(_selectedIndex + 1) * RibbonImageControl.MinExpandedWidth - (_nextImage != null ? _nextImage.ExpandedWidth / 2.0 : RibbonImageControl.MaxExpandedWidth / 2.0);
_maxTranslationX = -(_selectedIndex - 1) * RibbonImageControl.MinExpandedWidth - (_previousImage != null ? _previousImage.ExpandedWidth / 2.0 : RibbonImageControl.MinExpandedWidth - RibbonImageControl.MaxExpandedWidth / 2.0);
_translationX = -(RibbonImageControl.MinExpandedWidth * index + toItem.ExpandedWidth / 2.0);
AnimatePosition(fromItem, RibbonImageControl.MinExpandedWidth, toItem, toItem.ExpandedWidth, Transform, -(RibbonImageControl.MinExpandedWidth * index + toItem.ExpandedWidth / 2.0), duration);
return(true);
}
private void AnimatePosition(RibbonImageControl currentControl, double currentWidth, RibbonImageControl nextControl, double nextWidth, TranslateTransform transform, double translateXAll, double duration)
{
var storyboard = new Storyboard();
//#if EXTENDED_LENGTH
if (currentControl != null)
{
var currentWidthAnimation = new DoubleAnimation();
currentWidthAnimation.To = currentWidth;
currentWidthAnimation.Duration = new Duration(TimeSpan.FromSeconds(duration));
Storyboard.SetTarget(currentWidthAnimation, currentControl);
Storyboard.SetTargetProperty(currentWidthAnimation, new PropertyPath("Width"));
storyboard.Children.Add(currentWidthAnimation);
}
if (nextControl != null && nextControl != currentControl)
{
var nextWidthAnimation = new DoubleAnimation();
nextWidthAnimation.To = nextWidth;
nextWidthAnimation.Duration = new Duration(TimeSpan.FromSeconds(duration));
Storyboard.SetTarget(nextWidthAnimation, nextControl);
Storyboard.SetTargetProperty(nextWidthAnimation, new PropertyPath("Width"));
storyboard.Children.Add(nextWidthAnimation);
}
//#endif
//var translateXAnimation = new DoubleAnimation();
//translateXAnimation.To = translateX;
//translateXAnimation.Duration = new Duration(TimeSpan.FromSeconds(duration));
//Storyboard.SetTarget(translateXAnimation, transform);
//Storyboard.SetTargetProperty(translateXAnimation, new PropertyPath("X"));
//storyboard.Children.Add(translateXAnimation);
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)
{
var animation = new DoubleAnimation();
animation.To = x + translateXAll;
animation.Duration = new Duration(TimeSpan.FromSeconds(duration));
Storyboard.SetTarget(animation, container.RenderTransform);
Storyboard.SetTargetProperty(animation, new PropertyPath("X"));
storyboard.Children.Add(animation);
//container.RenderTransform = new TranslateTransform { X = x };
//x += image.Width;
if (image == currentControl)
{
x += currentWidth;
}
else if (image == nextControl)
{
x += nextWidth;
}
else if (image != null)
{
x += image.Width;
}
}
}
storyboard.Begin();
}
