protected internal override void BeginTransition(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
{
DoubleAnimation da = new DoubleAnimation(0, Duration);
da.Completed += delegate {
EndTransition(transitionElement, oldContent, newContent);
};
oldContent.BeginAnimation(UIElement.OpacityProperty, da);
}
protected override void OnTransitionEnded(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
{
oldContent.BeginAnimation(UIElement.OpacityProperty, null);
}
private void ArrangeCollapseElement(int idx, ContentPresenter element,
double panelCenterX, double panelCenterY,
double elementCenterX, double elementCenterY,
double destX, double destY)
{
element.Arrange(new Rect(destX, destY, element.DesiredSize.Width, element.DesiredSize.Height));
var transGroup = element.RenderTransform as TransformGroup;
Transform translateTransform, rotateTransform;
if (transGroup == null)
{
element.RenderTransform = transGroup = new TransformGroup();
translateTransform = new TranslateTransform();
rotateTransform = new RotateTransform() { CenterX = elementCenterX, CenterY = elementCenterY };
transGroup.Children.Add(translateTransform);
transGroup.Children.Add(rotateTransform);
}
else
{
translateTransform = transGroup.Children[0] as TranslateTransform;
rotateTransform = transGroup.Children[1] as RotateTransform;
}
element.RenderTransformOrigin = new Point(0.5, 0.5);
//if (i != 0) continue;
var aniDuration = AnimationDuration + TimeSpan.FromSeconds(AnimationDurationStep * idx);
translateTransform.BeginAnimation(TranslateTransform.XProperty, new DoubleAnimation(0, panelCenterX - destX, aniDuration));
translateTransform.BeginAnimation(TranslateTransform.YProperty, new DoubleAnimation(0, panelCenterY - destY, aniDuration));
rotateTransform.BeginAnimation(RotateTransform.CenterXProperty, new DoubleAnimation(0, panelCenterX - destX, aniDuration));
rotateTransform.BeginAnimation(RotateTransform.CenterYProperty, new DoubleAnimation(0, panelCenterY - destY, aniDuration));
rotateTransform.BeginAnimation(RotateTransform.AngleProperty, new DoubleAnimation(0, -720, aniDuration));
element.BeginAnimation(OpacityProperty, new DoubleAnimation(1, 0.2, aniDuration));
}