/// <summary>
/// Helper used by the four Freezable clone methods to copy the resolved key times and
/// key frames. The Get*AsFrozenCore methods are implemented the same as the Clone*Core
/// methods; Get*AsFrozen at the top level will recursively Freeze so it's not done here.
/// </summary>
/// <param name="sourceAnimation"></param>
/// <param name="isCurrentValueClone"></param>
private void CopyCommon(Vector3DAnimationUsingKeyFrames sourceAnimation, bool isCurrentValueClone)
{
_areKeyTimesValid = sourceAnimation._areKeyTimesValid;
if (_areKeyTimesValid &&
sourceAnimation._sortedResolvedKeyFrames != null)
{
// _sortedResolvedKeyFrames is an array of ResolvedKeyFrameEntry so the notion of CurrentValueClone doesn't apply
_sortedResolvedKeyFrames = (ResolvedKeyFrameEntry[])sourceAnimation._sortedResolvedKeyFrames.Clone();
}
if (sourceAnimation._keyFrames != null)
{
if (isCurrentValueClone)
{
_keyFrames = (Vector3DKeyFrameCollection)sourceAnimation._keyFrames.CloneCurrentValue();
}
else
{
_keyFrames = (Vector3DKeyFrameCollection)sourceAnimation._keyFrames.Clone();
}
OnFreezablePropertyChanged(null, _keyFrames);
}
}
/// <summary>
/// Implementation of <see cref="System.Windows.Freezable.GetCurrentValueAsFrozenCore(Freezable)">Freezable.GetCurrentValueAsFrozenCore</see>.
/// </summary>
protected override void GetCurrentValueAsFrozenCore(Freezable source)
{
Vector3DAnimationUsingKeyFrames sourceAnimation = (Vector3DAnimationUsingKeyFrames)source;
base.GetCurrentValueAsFrozenCore(source);
CopyCommon(sourceAnimation, /* isCurrentValueClone = */ true);
}
/// <summary>
/// Implementation of <see cref="System.Windows.Freezable.CloneCore(System.Windows.Freezable)">Freezable.CloneCore</see>.
/// </summary>
protected override void CloneCore(Freezable sourceFreezable)
{
Vector3DAnimationUsingKeyFrames sourceAnimation = (Vector3DAnimationUsingKeyFrames)sourceFreezable;
base.CloneCore(sourceFreezable);
CopyCommon(sourceAnimation, /* isCurrentValueClone = */ false);
}
private void Animate_OnClick(object sender, RoutedEventArgs e)
{
var lookDirectionAnimation = new Vector3DAnimationUsingKeyFrames
{
Duration = new Duration(TimeSpan.FromMilliseconds(7000))
};
lookDirectionAnimation.KeyFrames.Add(new LinearVector3DKeyFrame(new Vector3D(5, 2, -2), TimeSpan.FromMilliseconds(2000)));
lookDirectionAnimation.KeyFrames.Add(new LinearVector3DKeyFrame(new Vector3D(2, 1, -2), TimeSpan.FromMilliseconds(4000)));
lookDirectionAnimation.KeyFrames.Add(new LinearVector3DKeyFrame(new Vector3D(1.2, -1, -2), TimeSpan.FromMilliseconds(7000)));
Camera.BeginAnimation(ProjectionCamera.LookDirectionProperty, lookDirectionAnimation);
var positionAnimation = new Point3DAnimationUsingKeyFrames
{
Duration = new Duration(TimeSpan.FromMilliseconds(7000))
};
positionAnimation.KeyFrames.Add(new LinearPoint3DKeyFrame(new Point3D(0.1, 0.05, 0.2), TimeSpan.FromMilliseconds(2000)));
positionAnimation.KeyFrames.Add(new LinearPoint3DKeyFrame(new Point3D(0, 0.05, 0.2), TimeSpan.FromMilliseconds(4000)));
positionAnimation.KeyFrames.Add(new LinearPoint3DKeyFrame(new Point3D(-0.15, 1.2, 1.7), TimeSpan.FromMilliseconds(7000)));
Camera.BeginAnimation(ProjectionCamera.PositionProperty, positionAnimation);
}
/// <summary>
/// Helper used by the four Freezable clone methods to copy the resolved key times and
/// key frames. The Get*AsFrozenCore methods are implemented the same as the Clone*Core
/// methods; Get*AsFrozen at the top level will recursively Freeze so it's not done here.
/// </summary>
/// <param name="sourceAnimation"></param>
/// <param name="isCurrentValueClone"></param>
private void CopyCommon(Vector3DAnimationUsingKeyFrames sourceAnimation, bool isCurrentValueClone)
{
_areKeyTimesValid = sourceAnimation._areKeyTimesValid;
if ( _areKeyTimesValid
&& sourceAnimation._sortedResolvedKeyFrames != null)
{
// _sortedResolvedKeyFrames is an array of ResolvedKeyFrameEntry so the notion of CurrentValueClone doesn't apply
_sortedResolvedKeyFrames = (ResolvedKeyFrameEntry[])sourceAnimation._sortedResolvedKeyFrames.Clone();
}
if (sourceAnimation._keyFrames != null)
{
if (isCurrentValueClone)
{
_keyFrames = (Vector3DKeyFrameCollection)sourceAnimation._keyFrames.CloneCurrentValue();
}
else
{
_keyFrames = (Vector3DKeyFrameCollection)sourceAnimation._keyFrames.Clone();
}
OnFreezablePropertyChanged(null, _keyFrames);
}
}