/// <summary>
/// Creates a new layout animation when an arrange pass starts.
/// </summary>
protected void BeginArrange()
{
if (_layoutAnimation != null)
{
if (_layoutAnimation.IsPlaying)
{
_layoutAnimation.Stop(ProceduralAnimationStopState.Abort);
}
_layoutAnimation = null;
}
_useAnimation = UseAnimatedLayout;
_animations = new List <ProceduralAnimation>();
if (_useAnimation)
{
if (_useDefaultInterpolation)
{
_interpolation = EasingInterpolation.Default;
}
else
{
_interpolation = Interpolation;
if (_interpolation.IsLinearInterpolation)
{
_interpolation = null;
}
}
_duration = Duration;
}
}
/// <internalonly />
protected override ProceduralAnimation CreateTransitionAnimation(Panel container, EffectDirection direction)
{
if (_scaleTransform == null)
{
_scaleTransform = new ScaleTransform();
container.RenderTransform = _scaleTransform;
container.RenderTransformOrigin = new Point(0.5, 0.5);
}
TweenInterpolation interpolation = GetEffectiveInterpolation();
TimeSpan shortDuration = TimeSpan.FromMilliseconds(Duration.TotalMilliseconds / 3);
FlipScaleAnimation scaleAnimation =
new FlipScaleAnimation(Duration, _scaleTransform,
(direction == EffectDirection.Forward ? 180 : -180));
scaleAnimation.Interpolation = interpolation;
DoubleAnimation frontAnimation =
new DoubleAnimation(container.Children[1], UIElement.OpacityProperty, shortDuration,
(direction == EffectDirection.Forward ? 0 : 1));
frontAnimation.Interpolation = interpolation;
frontAnimation.StartDelay = shortDuration;
DoubleAnimation backAnimation =
new DoubleAnimation(container.Children[0], UIElement.OpacityProperty, shortDuration,
(direction == EffectDirection.Forward ? 1 : 0));
backAnimation.Interpolation = interpolation;
backAnimation.StartDelay = shortDuration;
return(new ProceduralAnimationSet(scaleAnimation, frontAnimation, backAnimation));
}
/// <internalonly />
protected override ProceduralAnimation CreateTransitionAnimation(Panel container, EffectDirection direction)
{
TweenInterpolation interpolation = GetEffectiveInterpolation();
DoubleAnimation frontAnimation =
new DoubleAnimation(container.Children[1], UIElement.OpacityProperty, Duration,
(direction == EffectDirection.Forward ? 0 : 1));
frontAnimation.Interpolation = interpolation;
DoubleAnimation backAnimation =
new DoubleAnimation(container.Children[0], UIElement.OpacityProperty, Duration,
(direction == EffectDirection.Forward ? 1 : 0));
backAnimation.Interpolation = interpolation;
return(new ProceduralAnimationSet(frontAnimation, backAnimation));
}
protected override ProceduralAnimation CreateEffectAnimation(EffectDirection direction)
{
FrameworkElement target = GetTarget();
ScaleTransform scaleTransform = target.RenderTransform as ScaleTransform;
if (scaleTransform == null)
{
scaleTransform = new ScaleTransform();
target.RenderTransform = scaleTransform;
target.RenderTransformOrigin = new Point(0.5, 0.5);
}
TimeSpan halfDuration = TimeSpan.FromMilliseconds(Duration.TotalMilliseconds / 2);
TweenInterpolation interpolation = GetEffectiveInterpolation();
// A FlashBulb effect basically grows the element and makes it transparent
// half way and then restores the element to its initial state during the
// 2nd half of the animation.
// This is accomplished with three animations that auto-reverse.
// As a result the animations are the same regardless of effect direction.
DoubleAnimation opacityAnimation =
new DoubleAnimation(target, UIElement.OpacityProperty, halfDuration, 0.25);
DoubleAnimation scaleXAnimation =
new DoubleAnimation(scaleTransform, ScaleTransform.ScaleXProperty, halfDuration, 1.1);
DoubleAnimation scaleYAnimation =
new DoubleAnimation(scaleTransform, ScaleTransform.ScaleYProperty, halfDuration, 1.1);
opacityAnimation.Interpolation = interpolation;
scaleXAnimation.Interpolation = interpolation;
scaleYAnimation.Interpolation = interpolation;
// Create a composite animation that plays all three in parallel
ProceduralAnimation animation =
new ProceduralAnimationSet(opacityAnimation, scaleXAnimation, scaleYAnimation);
animation.AutoReverse = true;
return(animation);
}
/// <internalonly />
protected internal override ProceduralAnimation CreateEffectAnimation(EffectDirection direction)
{
if (_translateTransform == null)
{
Transform existingTransform = GetTarget().RenderTransform;
if (existingTransform != null)
{
_translateTransform = existingTransform as TranslateTransform;
if (_translateTransform == null)
{
TransformGroup transformGroup = existingTransform as TransformGroup;
if (transformGroup != null)
{
foreach (Transform transform in transformGroup.Children)
{
_translateTransform = transform as TranslateTransform;
if (_translateTransform != null)
{
break;
}
}
}
}
}
if (_translateTransform == null)
{
throw new InvalidOperationException("The element does not have a translate transform associated with it.");
}
_initialX = _translateTransform.X;
_initialY = _translateTransform.Y;
}
TweenInterpolation interpolation = GetEffectiveInterpolation();
DoubleAnimation xAnimation = null;
DoubleAnimation yAnimation = null;
if (_horizontalMovement != 0)
{
double targetValue = direction == EffectDirection.Forward ? _horizontalMovement : _initialX;
xAnimation = new DoubleAnimation(_translateTransform, TranslateTransform.XProperty, Duration, targetValue);
xAnimation.Interpolation = interpolation;
}
if (_verticalMovement != 0)
{
double targetValue = direction == EffectDirection.Forward ? _verticalMovement : _initialY;
yAnimation = new DoubleAnimation(_translateTransform, TranslateTransform.YProperty, Duration, targetValue);
yAnimation.Interpolation = interpolation;
}
if ((xAnimation != null) && (yAnimation != null))
{
ProceduralAnimationSet animation = new ProceduralAnimationSet(xAnimation, yAnimation);
animation.AutoReverse = AutoReverse;
return(animation);
}
else if (xAnimation != null)
{
xAnimation.AutoReverse = AutoReverse;
return(xAnimation);
}
else if (yAnimation != null)
{
yAnimation.AutoReverse = AutoReverse;
return(yAnimation);
}
return(null);
}
/// <internalonly />
protected override ProceduralAnimation CreateTransitionAnimation(Panel container, EffectDirection direction)
{
bool forward = direction == EffectDirection.Forward;
double width = container.ActualWidth;
double height = container.ActualHeight;
TranslateTransform topTransform = null;
TranslateTransform bottomTransform = null;
Transform existingTransform = null;
FrameworkElement topContent = (FrameworkElement)container.Children[1];
FrameworkElement bottomContent = (FrameworkElement)container.Children[0];
existingTransform = topContent.RenderTransform;
if (existingTransform != null)
{
topTransform = existingTransform as TranslateTransform;
if (topTransform == null)
{
TransformGroup transformGroup = existingTransform as TransformGroup;
if (transformGroup != null)
{
foreach (Transform transform in transformGroup.Children)
{
topTransform = transform as TranslateTransform;
if (topTransform != null)
{
break;
}
}
if (topTransform == null)
{
topTransform = new TranslateTransform();
transformGroup.Children.Add(topTransform);
}
}
}
}
existingTransform = bottomContent.RenderTransform;
if (existingTransform != null)
{
bottomTransform = existingTransform as TranslateTransform;
if (bottomTransform == null)
{
TransformGroup transformGroup = existingTransform as TransformGroup;
if (transformGroup != null)
{
foreach (Transform transform in transformGroup.Children)
{
bottomTransform = transform as TranslateTransform;
if (bottomTransform != null)
{
break;
}
}
if (bottomTransform == null)
{
bottomTransform = new TranslateTransform();
transformGroup.Children.Add(bottomTransform);
}
}
}
}
if (topTransform == null)
{
topTransform = new TranslateTransform();
topContent.RenderTransform = topTransform;
}
if (bottomTransform == null)
{
bottomTransform = new TranslateTransform();
bottomContent.RenderTransform = bottomTransform;
}
SlideAnimation slideAnimation = new SlideAnimation(container, Duration, forward);
DoubleAnimation topAnimation = null;
DoubleAnimation bottomAnimation = null;
switch (_mode)
{
case SlideMode.Left:
if (forward)
{
bottomTransform.X = width;
topAnimation = new DoubleAnimation(topTransform, TranslateTransform.XProperty, Duration, -width);
bottomAnimation = new DoubleAnimation(bottomTransform, TranslateTransform.XProperty, Duration, 0);
}
else
{
topTransform.X = -width;
topAnimation = new DoubleAnimation(topTransform, TranslateTransform.XProperty, Duration, 0);
bottomAnimation = new DoubleAnimation(bottomTransform, TranslateTransform.XProperty, Duration, width);
}
break;
case SlideMode.Right:
if (forward)
{
bottomTransform.X = -width;
topAnimation = new DoubleAnimation(topTransform, TranslateTransform.XProperty, Duration, width);
bottomAnimation = new DoubleAnimation(bottomTransform, TranslateTransform.XProperty, Duration, 0);
}
else
{
topTransform.X = width;
topAnimation = new DoubleAnimation(topTransform, TranslateTransform.XProperty, Duration, 0);
bottomAnimation = new DoubleAnimation(bottomTransform, TranslateTransform.XProperty, Duration, -width);
}
break;
case SlideMode.Up:
if (forward)
{
bottomTransform.Y = height;
topAnimation = new DoubleAnimation(topTransform, TranslateTransform.YProperty, Duration, -height);
bottomAnimation = new DoubleAnimation(bottomTransform, TranslateTransform.YProperty, Duration, 0);
}
else
{
topTransform.Y = -height;
topAnimation = new DoubleAnimation(topTransform, TranslateTransform.YProperty, Duration, 0);
bottomAnimation = new DoubleAnimation(bottomTransform, TranslateTransform.YProperty, Duration, height);
}
break;
case SlideMode.Down:
if (forward)
{
bottomTransform.Y = -height;
topAnimation = new DoubleAnimation(topTransform, TranslateTransform.YProperty, Duration, height);
bottomAnimation = new DoubleAnimation(bottomTransform, TranslateTransform.YProperty, Duration, 0);
}
else
{
topTransform.Y = height;
topAnimation = new DoubleAnimation(topTransform, TranslateTransform.YProperty, Duration, 0);
bottomAnimation = new DoubleAnimation(bottomTransform, TranslateTransform.YProperty, Duration, -height);
}
break;
}
TweenInterpolation interpolation = GetEffectiveInterpolation();
topAnimation.Interpolation = interpolation;
bottomAnimation.Interpolation = interpolation;
return(new ProceduralAnimationSet(slideAnimation, topAnimation, bottomAnimation));
}
/// <internalonly />
protected override ProceduralAnimation CreateTransitionAnimation(Panel container, EffectDirection direction)
{
FrameworkElement topElement = (FrameworkElement)container.Children[1];
FrameworkElement bottomElement = (FrameworkElement)container.Children[0];
ScaleTransform scaleTransform = null;
Transform existingTransform = topElement.RenderTransform;
if (existingTransform != null)
{
scaleTransform = existingTransform as ScaleTransform;
if (scaleTransform == null)
{
TransformGroup transformGroup = existingTransform as TransformGroup;
if (transformGroup != null)
{
foreach (Transform transform in transformGroup.Children)
{
scaleTransform = transform as ScaleTransform;
if (transform != null)
{
break;
}
}
if (scaleTransform == null)
{
scaleTransform = new ScaleTransform();
transformGroup.Children.Add(scaleTransform);
}
}
}
}
if (scaleTransform == null)
{
scaleTransform = new ScaleTransform();
topElement.RenderTransform = scaleTransform;
}
if (_initialScaleX == 0)
{
_initialScaleX = scaleTransform.ScaleX;
_initialScaleY = scaleTransform.ScaleY;
}
scaleTransform.CenterX = container.ActualWidth / 2;
scaleTransform.CenterY = container.ActualHeight / 2;
TweenInterpolation interpolation = GetEffectiveInterpolation();
DoubleAnimation scaleXAnimation;
DoubleAnimation scaleYAnimation;
DoubleAnimation fadeAnimation;
if (direction == EffectDirection.Forward)
{
fadeAnimation = new DoubleAnimation(topElement, UIElement.OpacityProperty, Duration, 0);
scaleXAnimation = new DoubleAnimation(scaleTransform, ScaleTransform.ScaleXProperty, Duration, _initialScaleX * _scaleRatio);
scaleYAnimation = new DoubleAnimation(scaleTransform, ScaleTransform.ScaleYProperty, Duration, _initialScaleY * _scaleRatio);
}
else
{
fadeAnimation = new DoubleAnimation(topElement, UIElement.OpacityProperty, Duration, 1);
scaleXAnimation = new DoubleAnimation(scaleTransform, ScaleTransform.ScaleXProperty, Duration, _initialScaleX);
scaleYAnimation = new DoubleAnimation(scaleTransform, ScaleTransform.ScaleYProperty, Duration, _initialScaleY);
}
scaleXAnimation.Interpolation = interpolation;
scaleYAnimation.Interpolation = interpolation;
fadeAnimation.Interpolation = interpolation;
return(new ProceduralAnimationSet(scaleXAnimation, scaleYAnimation, fadeAnimation));
}
