public static void SlideAndFade(FrameworkElement control, SlideAnimationMode mode, double from, double to)
{
if (mode == SlideAnimationMode.None)
{
return;
}
control.Visibility = Visibility.Hidden;
var slideAnimation = CreateSlideAnimation(
control.ActualWidth,
control.ActualHeight,
mode,
TimeSpan);
var fadeAnimation = CreateFadeAnimation(from, to, TimeSpan);
var sb = new Storyboard();
sb.Children.Add(slideAnimation);
sb.Children.Add(fadeAnimation);
sb.Begin(control);
if (to == 0)
{
control.Visibility = Visibility.Collapsed;
}
else
{
control.Visibility = Visibility.Visible;
}
}
private static void GetThicknessAnimateValue(
double controlWidth,
double controlHeight,
SlideAnimationMode mode,
out Thickness firstThickness,
out Thickness lastThickness)
{
switch (mode)
{
case SlideAnimationMode.LeftToRight:
firstThickness = new Thickness(-controlWidth, 0, controlWidth, 0);
break;
case SlideAnimationMode.RightToLeft:
firstThickness = new Thickness(controlWidth, 0, -controlWidth, 0);
break;
case SlideAnimationMode.TopToBottom:
firstThickness = new Thickness(0, -controlHeight, 0, controlHeight);
break;
case SlideAnimationMode.BottomToTop:
firstThickness = new Thickness(0, controlHeight, 0, -controlHeight);
break;
default:
firstThickness = new Thickness(0);
break;
}
lastThickness = new Thickness(0);
}
public static void Slide(FrameworkElement control, SlideAnimationMode mode)
{
if (mode == SlideAnimationMode.None)
{
return;
}
var slideAnimation = CreateSlideAnimation(
control.ActualWidth,
control.ActualHeight,
mode,
TimeSpan);
var sb = new Storyboard();
sb.Children.Add(slideAnimation);
sb.Begin(control);
}
/// <summary>
/// Provides slide effect
/// </summary>
/// <param name="controlWidth">The width of the control applying the animation</param>
/// <param name="animationMode">The animation mode of sliding</param>
/// /// <param name="decelerationRatio">The ratio of timespan spent to decelerate</param>
/// <returns>The animation</returns>
public static ThicknessAnimation CreateSlideAnimation(
double controlWidth,
double controlHeight,
SlideAnimationMode animationMode,
double seconds,
double decelerationRatio = 0.9f)
{
GetThicknessAnimateValue(controlWidth, controlHeight, animationMode, out Thickness from, out Thickness to);
var slideAnimation = new ThicknessAnimation
{
From = from,
To = to,
Duration = new Duration(System.TimeSpan.FromSeconds(seconds)),
DecelerationRatio = decelerationRatio
};
Storyboard.SetTargetProperty(slideAnimation, new PropertyPath("Margin"));
return(slideAnimation);
}
public static async Task SlideAndFadeAsync(FrameworkElement control, SlideAnimationMode mode, double from, double to)
{
SlideAndFade(control, mode, from, to);
}
/// <summary>
/// Perform the animation on control in asynchorous mode
/// </summary>
/// <param name="control"></param>
/// <param name="mode"></param>
/// <returns></returns>
public static async Task SlideAsync(FrameworkElement control, SlideAnimationMode mode)
{
Slide(control, mode);
}
