public static void PerformTranslateIn(DependencyObject dependencyObject, TranslateAxes translateAxis,
double defaultValue, double startingValue, double endingValue,
double duration, double staggerDelay = 0)
{
// create default easing
CubicEase easeIn = new CubicEase()
{
EasingMode = EasingMode.EaseIn
};
CubicEase easeOut = new CubicEase()
{
EasingMode = EasingMode.EaseOut
};
PerformTranslateIn(dependencyObject, translateAxis, defaultValue, startingValue, endingValue, easeIn, easeOut, duration, staggerDelay);
}
public static void PerformTranslateIn(DependencyObject dependencyObject, TranslateAxes translateAxis,
double defaultValue, double startingValue, double endingValue,
EasingFunctionBase easingFunctionIn, EasingFunctionBase easingFunctionOut,
double duration, double staggerDelay = 0)
{
Storyboard storyboard = null;
if (null != dependencyObject)
{
storyboard = CreateTranslateAnimation(dependencyObject, translateAxis,
defaultValue, startingValue, endingValue,
easingFunctionIn, easingFunctionOut,
duration, staggerDelay,
false, false, new RepeatBehavior(1d));
storyboard.Begin();
}
}
public static void SetTranslateAxis(UIElement element, TranslateAxes value)
{
element.SetValue(TranslateAxisProperty, value);
}
public static void PerformPageEntranceAnimation(Page page)
{
if (null != page)
{
// stagger delay counter
double staggerDelay = 0;
// create default easing
CubicEase easeIn = new CubicEase()
{
EasingMode = EasingMode.EaseIn
};
CubicEase easeOut = new CubicEase()
{
EasingMode = EasingMode.EaseOut
};
// storyboards
List <Storyboard> storyboards = new List <Storyboard>();
// get all the objects to animate
List <UIElement> animatables = GetAllAnimatableChildren(page.Content);
// loop through them
foreach (UIElement animatable in animatables)
{
// get the animation tag properties
AnimationTypes animationType = AnimationTag.GetAnimationType(animatable);
TranslateAxes translateAxis = AnimationTag.GetTranslateAxis(animatable);
TranslateDirections translateDirection = AnimationTag.GetTranslateDirection(animatable);
// create the animations
switch (animationType)
{
case AnimationTypes.Background:
storyboards.Add(CreateEasingAnimation(animatable, "Opacity", 0.0, 0.0, 1.0,
DEFAULT_DURATION, staggerDelay,
false, false, new RepeatBehavior(1d)));
break;
case AnimationTypes.Standard:
storyboards.Add(CreateEasingAnimation(animatable, "Opacity", 0.0, 0.0, 1.0,
DEFAULT_DURATION, staggerDelay,
false, false, new RepeatBehavior(1d)));
double startValue1 = ((TranslateDirections.FromTop == translateDirection) ||
(TranslateDirections.FromLeft == translateDirection))
? -1 * DEFAULT_TRANSLATE_OFFSET : DEFAULT_TRANSLATE_OFFSET;
storyboards.Add(CreateTranslateAnimation(animatable, translateAxis, startValue1, startValue1, 0,
easeIn, easeOut, DEFAULT_DURATION, staggerDelay,
false, false, new RepeatBehavior(1d)));
break;
case AnimationTypes.Hero:
storyboards.Add(CreateEasingAnimation(animatable, "Opacity", 0.0, 0.0, 1.0,
DEFAULT_DURATION, staggerDelay,
false, false, new RepeatBehavior(1d)));
double startValue2 = ((TranslateDirections.FromTop == translateDirection) ||
(TranslateDirections.FromLeft == translateDirection))
? -1 * DEFAULT_TRANSLATE_HERO_OFFSET : DEFAULT_TRANSLATE_HERO_OFFSET;
storyboards.Add(CreateTranslateAnimation(animatable, translateAxis, startValue2, startValue2, 0,
easeIn, easeOut, DEFAULT_DURATION, staggerDelay,
false, false, new RepeatBehavior(1d)));
break;
case AnimationTypes.Radiate:
storyboards.Add(CreateEasingAnimation(animatable, "Opacity", 0.0, 0.0, 1.0,
DEFAULT_DURATION * 2, staggerDelay,
false, false, new RepeatBehavior(1d)));
staggerDelay += DEFAULT_DURATION * 2;
//storyboards.Add(CreateEasingAnimation(animatable, "Opacity", 0.5, 0.5, 1.0,
// DEFAULT_DURATION * 2, staggerDelay,
// false, false, new RepeatBehavior(1d)));
//staggerDelay += DEFAULT_DURATION;
break;
case AnimationTypes.None:
default:
break;
}
// increment stagger delay
staggerDelay += 2 * (DEFAULT_DURATION / 3);
}
// loop through the animations and start them
foreach (Storyboard storyboard in storyboards)
{
storyboard.Begin();
}
}
}
public static Storyboard CreateTranslateAnimation(DependencyObject dependencyObject, TranslateAxes axis,
double defaultValue, double startValue, double endValue,
EasingFunctionBase easingFunctionIn, EasingFunctionBase easingFunctionOut,
double duration, double staggerDelay,
bool autoReverse, bool repeatForever, RepeatBehavior repeatBehavior)
{
if (null == dependencyObject)
{
return(null);
}
// total duration
double totalDuration = duration + staggerDelay;
// create the storyboard
Storyboard storyboard = new Storyboard()
{
Duration = TimeSpan.FromMilliseconds(totalDuration),
AutoReverse = autoReverse,
RepeatBehavior = (repeatForever) ? RepeatBehavior.Forever : repeatBehavior
};
// need a translate transform to animate
TranslateTransform translateTransform = FindOrCreateTranslateTransform(dependencyObject);
if (null != translateTransform)
{
// set the default value for the transform
translateTransform.X = (TranslateAxes.Horizontal == axis) ? defaultValue : 0;
translateTransform.Y = (TranslateAxes.Vertical == axis) ? defaultValue : 0;
// create default easing
CubicEase easeIn = new CubicEase()
{
EasingMode = EasingMode.EaseIn
};
CubicEase easeOut = new CubicEase()
{
EasingMode = EasingMode.EaseOut
};
string propertyName = (TranslateAxes.Horizontal == axis) ? "X" : "Y";
DoubleAnimationUsingKeyFrames daKeyFrames = CreateEasingKeyFrames(translateTransform, propertyName,
defaultValue, startValue, endValue,
easeIn, easeOut, duration, staggerDelay);
storyboard.Children.Add(daKeyFrames);
Storyboard.SetTarget(daKeyFrames, translateTransform);
Storyboard.SetTargetProperty(daKeyFrames, propertyName);
}
return(storyboard);
}
