/// <summary>
/// Inserts a KeyFrame in the KeyFrameAnimation by converting
/// the given Expression to appropriate string
/// </summary>
/// <typeparam name="T">Type of the Expression</typeparam>
/// <param name="animation">KeyFrameAnimation</param>
/// <param name="normalizedProgressKey">The time the key frame should occur at, expressed as
/// a percentage of the animation Duration. Allowed value is from 0.0 to 1.0.</param>
/// <param name="expression">The expression used to calculate the value of the key frame.</param>
/// <param name="easingFunction">Easing Function (optional)</param>
/// <returns>KeyFrameAnimation</returns>
public static KeyFrameAnimation InsertExpressionKeyFrame <T>(this KeyFrameAnimation animation, float normalizedProgressKey,
Expression <CompositionLambda <T> > expression, CompositionEasingFunction easingFunction = null)
{
var result = CompositionExpressionEngine.CreateCompositionExpression(expression);
animation.InsertExpressionKeyFrame(normalizedProgressKey, result.Expression, easingFunction);
animation.SetParameters(result.Parameters);
return(animation);
}
/// <summary>
/// Starts the given KeyFrameAnimation<> on the property specified by the given expression.
/// The expression is converted to the appropriate property string by the
/// CompositionExpressionEngine
/// </summary>
/// <typeparam name="T">Type of the property to be animated.</typeparam>
/// <param name="compositionObject">CompositionObject</param>
/// <param name="expression">Lambda expression defining the property on
/// which the animation has to be started.</param>
/// <param name="keyframeAnimation">The KeyFrameAnimation to run on the specified property.</param>
public static void StartAnimation <T>(this CompositionObject compositionObject,
Expression <Func <T> > expression, KeyFrameAnimation <T> keyframeAnimation)
{
compositionObject.StartAnimation(CompositionExpressionEngine.ParseExpression(expression), keyframeAnimation.Animation);
}
/// <summary>
/// Starts the given KeyFrameAnimation<> on the property specified by the given expression.
/// The expression is converted to the appropriate property string by the
/// CompositionExpressionEngine
/// </summary>
/// <typeparam name="T">Type of the property to be animated.</typeparam>
/// <param name="compositionObject">CompositionObject</param>
/// <param name="targetProperty">Property on which the animation has to be started.</param>
/// <param name="keyframeAnimation">The KeyFrameAnimation to run on the specified property.</param>
public static void StartAnimation <T>(this CompositionObject compositionObject,
string targetProperty, KeyFrameAnimation <T> keyframeAnimation)
{
compositionObject.StartAnimation(targetProperty, keyframeAnimation.Animation);
}
/// <summary>
/// Ctor
/// </summary>
/// <param name="animation">The KeyFrameAnimation to encapsulate.</param>
public KeyFrameAnimation(KeyFrameAnimation animation)
{
Animation = animation;
}
