/// <summary>
/// Sets the focused animation.
/// </summary>
/// <param name="parentItem">The focus item's parent view</param>
/// <param name="itemSize">The size of focus view</param>
/// <param name="duration">the duration in milli seconds of the animation.</param>
/// <param name="direction">dirction</param>
public void FocusAnimation(View parentItem, Vector2 itemSize, int duration, FocusEffectDirection direction)
{
var itemWidth = itemSize.Width + _frameThickness / 2;
var itemHeight = itemSize.Height + _frameThickness / 3;
// Clear animation.
if (_animation)
{
_animation.Clear();
_animation.Reset();
}
_animation = new Animation(duration);
_animation.Duration = duration;
if (direction == FocusEffectDirection.BottomToTop)
{
_focusData[0].ParentOrigin = ParentOrigin.BottomCenter;
_focusData[1].ParentOrigin = ParentOrigin.BottomCenter;
_focusData[2].ParentOrigin = ParentOrigin.BottomLeft;
_focusData[3].ParentOrigin = ParentOrigin.BottomRight;
_focusData[4].ParentOrigin = ParentOrigin.TopLeft;
_focusData[5].ParentOrigin = ParentOrigin.TopRight;
}
else
{
_focusData[0].ParentOrigin = ParentOrigin.TopCenter;
_focusData[1].ParentOrigin = ParentOrigin.TopCenter;
_focusData[2].ParentOrigin = ParentOrigin.BottomLeft;
_focusData[3].ParentOrigin = ParentOrigin.BottomRight;
_focusData[4].ParentOrigin = ParentOrigin.BottomLeft;
_focusData[5].ParentOrigin = ParentOrigin.BottomRight;
}
foreach (FocusData focusData in _focusData)
{
var currentParent = focusData.ImageItem.Parent;
// first parent the controls
if (parentItem != currentParent)
{
parentItem.Add(focusData.ImageItem);
}
focusData.ImageItem.Size2D = new Vector2(100.0f, 100.0f);
parentItem.Add(focusData.ImageItem);
Vector2 targetSize = focusData.TargetSize;
Vector2 initSize = focusData.InitSize;
if (focusData.FocusDirection == FocusData.Direction.Horizontal)
{
// adjust the width to match the parent
targetSize.Width = itemWidth;
}
else // vertical frame
{
// adjust the height to match the parent
targetSize.Height = itemHeight;
}
// half the size for the top frame as we come out from both left / right sides
if (focusData.Name == "top-right" || focusData.Name == "top-left")
{
targetSize.Width = itemWidth - _frameThickness;
}
KeyFrames keyFrames = new KeyFrames();
keyFrames.Add(0.0f, initSize);
keyFrames.Add(focusData.KeyFrameStart, initSize);
keyFrames.Add(focusData.KeyFrameEnd, targetSize);
// for halo add an extra keyframe to shrink it ( in 20% of time after it has finished)
if (focusData.Name == "halo")
{
keyFrames.Add(focusData.KeyFrameEnd + 0.2f, initSize);
}
_animation.AnimateBetween(focusData.ImageItem, "Size", keyFrames, Animation.Interpolation.Linear, new AlphaFunction(AlphaFunction.BuiltinFunctions.EaseOutSine));
// Simulate the vertical frame growing from the top.
// Vertical items are anchored to the bottom of the parent... so when they grow
// we need to move them to the middle of the parent ( otherwise they stick out the bottom)
if (focusData.FocusDirection == FocusData.Direction.Vertical)
{
//animate position as well so it looks like animation is coming from bottom
KeyFrames keyFramesV = new KeyFrames();
if (direction == FocusEffectDirection.BottomToTop)
{
keyFramesV.Add(0.0f, 0.0f);
keyFramesV.Add(focusData.KeyFrameStart, 0.0f);
}
else
{
keyFramesV.Add(0.0f, -itemHeight);
keyFramesV.Add(focusData.KeyFrameStart, -itemHeight);
}
// animate to halfway up the control
keyFramesV.Add(focusData.KeyFrameEnd, (-itemHeight / 2));
_animation.AnimateBetween(focusData.ImageItem, "PositionY", keyFramesV, Animation.Interpolation.Linear, new AlphaFunction(AlphaFunction.BuiltinFunctions.EaseOutSine));
}
// Simulate the top frame growing from the sides.
if (focusData.Name == "top-left")
{
KeyFrames keyFramesTL = new KeyFrames();
keyFramesTL.Add(0.0f, 0.0f);
keyFramesTL.Add(focusData.KeyFrameStart, 0.0f);
// animate to halfway up the control
keyFramesTL.Add(focusData.KeyFrameEnd, (itemWidth / 2));
// grow these from the left or right
_animation.AnimateBetween(focusData.ImageItem, "PositionX", keyFramesTL, Animation.Interpolation.Linear, new AlphaFunction(AlphaFunction.BuiltinFunctions.EaseOutSine));
}
if (focusData.Name == "top-right")
{
KeyFrames keyFramesTR = new KeyFrames();
keyFramesTR.Add(0.0f, 0.0f);
keyFramesTR.Add(focusData.KeyFrameStart, 0.0f);
// animate to halfway up the control
keyFramesTR.Add(focusData.KeyFrameEnd, (-itemWidth / 2));
// grow these from the left or right
_animation.AnimateBetween(focusData.ImageItem, "PositionX", keyFramesTR, Animation.Interpolation.Linear, new AlphaFunction(AlphaFunction.BuiltinFunctions.EaseOutSine));
}
_animation.Finished += OnAnimationFinished;
_animation.Play();
}
}
/// <summary>
/// Perform Focus animation Effect on the current Focused Item on ScrollContainer.
/// </summary>
/// <param name="scrollContainer">Scroll Container</param>
/// <param name="direction">Direction</param>
private void FocusAnimation(ScrollContainer scrollContainer, FocusEffectDirection direction)
{
_focusEffect.FocusAnimation(scrollContainer.GetCurrentFocusedActor(), scrollContainer.ItemSize, 1000, direction);
}