protected override Storyboard PrepareItemAnimation(ElementFlow owner, int index, ElementFlow.ElementAnimationType type)
{
// Initialize storyboard
Storyboard sb = owner.PrepareTemplateStoryboard(index);
// Child animations
Rotation3DAnimation rotAnim = sb.Children[0] as Rotation3DAnimation;
DoubleAnimation xAnim = sb.Children[1] as DoubleAnimation;
DoubleAnimation yAnim = sb.Children[2] as DoubleAnimation;
DoubleAnimation zAnim = sb.Children[3] as DoubleAnimation;
switch (type)
{
case ElementFlow.ElementAnimationType.Left:
(rotAnim.To as AxisAngleRotation3D).Angle = owner.TiltAngle;
(rotAnim.To as AxisAngleRotation3D).Axis = new Vector3D(1, 0, 0);
yAnim.To = -1 * owner.ItemGap * (owner.SelectedIndex - index) - owner.FrontItemGap;
break;
case ElementFlow.ElementAnimationType.Right:
(rotAnim.To as AxisAngleRotation3D).Angle = -1 * owner.TiltAngle;
(rotAnim.To as AxisAngleRotation3D).Axis = new Vector3D(1, 0, 0);
yAnim.To = owner.ItemGap * (index - owner.SelectedIndex) + owner.FrontItemGap;
break;
case ElementFlow.ElementAnimationType.Selection:
(rotAnim.To as AxisAngleRotation3D).Angle = 0;
yAnim.To = 0;
zAnim.To = owner.PopoutDistance;
break;
}
return(sb);
}
public void SelectElement(int selectionIndex)
{
for (int beforeIndex = 0; beforeIndex < selectionIndex; beforeIndex++)
{
var leftSB = Owner.PrepareTemplateStoryboard(beforeIndex);
PrepareStoryboard(leftSB, GetBeforeMotion(beforeIndex - selectionIndex));
leftSB.Begin(Owner.Viewport);
}
var centerSB = Owner.PrepareTemplateStoryboard(selectionIndex);
PrepareStoryboard(centerSB, GetSelectionMotion());
centerSB.Begin(Owner.Viewport);
for (int afterIndex = selectionIndex + 1; afterIndex < Owner.Items.Count; afterIndex++)
{
var rightSB = Owner.PrepareTemplateStoryboard(afterIndex);
PrepareStoryboard(rightSB, GetAfterMotion(afterIndex - selectionIndex));
rightSB.Begin(Owner.Viewport);
}
}
