diff options
Diffstat (limited to 'Gestor.Common/Gestor.Common.Helpers/ScrollAnimationBehavior.cs')
| -rw-r--r-- | Gestor.Common/Gestor.Common.Helpers/ScrollAnimationBehavior.cs | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/Gestor.Common/Gestor.Common.Helpers/ScrollAnimationBehavior.cs b/Gestor.Common/Gestor.Common.Helpers/ScrollAnimationBehavior.cs deleted file mode 100644 index 6332e15..0000000 --- a/Gestor.Common/Gestor.Common.Helpers/ScrollAnimationBehavior.cs +++ /dev/null @@ -1,124 +0,0 @@ -using System;
-using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Input;
-using System.Windows.Media.Animation;
-
-namespace Gestor.Common.Helpers
-{
- public static class ScrollAnimationBehavior
- {
- public static DependencyProperty VerticalOffsetProperty;
-
- public static DependencyProperty TimeDurationProperty;
-
- public static DependencyProperty PointsToScrollProperty;
-
- public static DependencyProperty IsEnabledProperty;
-
- private static double _currentToValue;
-
- private static Storyboard _storyboard;
-
- static ScrollAnimationBehavior()
- {
- ScrollAnimationBehavior.VerticalOffsetProperty = DependencyProperty.RegisterAttached("VerticalOffset", typeof(double), typeof(ScrollAnimationBehavior), new UIPropertyMetadata((object)0, new PropertyChangedCallback(ScrollAnimationBehavior.OnVerticalOffsetChanged)));
- ScrollAnimationBehavior.TimeDurationProperty = DependencyProperty.RegisterAttached("TimeDuration", typeof(TimeSpan), typeof(ScrollAnimationBehavior), new PropertyMetadata((object)(new TimeSpan(0, 0, 0, 0, 0))));
- ScrollAnimationBehavior.PointsToScrollProperty = DependencyProperty.RegisterAttached("PointsToScroll", typeof(double), typeof(ScrollAnimationBehavior), new PropertyMetadata((object)0));
- ScrollAnimationBehavior.IsEnabledProperty = DependencyProperty.RegisterAttached("IsEnabled", typeof(bool), typeof(ScrollAnimationBehavior), new UIPropertyMetadata(false, new PropertyChangedCallback(ScrollAnimationBehavior.OnIsEnabledChanged)));
- }
-
- private static void AnimateScroll(ScrollViewer scrollViewer)
- {
- DoubleAnimationUsingKeyFrames doubleAnimationUsingKeyFrame = new DoubleAnimationUsingKeyFrames()
- {
- Duration = new Duration(ScrollAnimationBehavior.GetTimeDuration(scrollViewer))
- };
- doubleAnimationUsingKeyFrame.KeyFrames.Add(new EasingDoubleKeyFrame(scrollViewer.VerticalOffset, KeyTime.FromPercent(0)));
- doubleAnimationUsingKeyFrame.KeyFrames.Add(new EasingDoubleKeyFrame(ScrollAnimationBehavior._currentToValue, KeyTime.FromPercent(1), new SineEase()
- {
- EasingMode = EasingMode.EaseOut
- }));
- ScrollAnimationBehavior._storyboard = new Storyboard();
- ScrollAnimationBehavior._storyboard.Children.Add(doubleAnimationUsingKeyFrame);
- Storyboard.SetTarget(doubleAnimationUsingKeyFrame, scrollViewer);
- Storyboard.SetTargetProperty(doubleAnimationUsingKeyFrame, new PropertyPath(ScrollAnimationBehavior.VerticalOffsetProperty));
- ScrollAnimationBehavior._storyboard.Begin();
- }
-
- public static TimeSpan GetTimeDuration(FrameworkElement target)
- {
- return (TimeSpan)target.GetValue(ScrollAnimationBehavior.TimeDurationProperty);
- }
-
- private static void OnIsEnabledChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
- {
- ScrollViewer scrollViewer = sender as ScrollViewer;
- if (scrollViewer != null)
- {
- scrollViewer.Loaded += new RoutedEventHandler(ScrollAnimationBehavior.ScrollerLoaded);
- }
- }
-
- private static void OnVerticalOffsetChanged(DependencyObject target, DependencyPropertyChangedEventArgs e)
- {
- ScrollViewer scrollViewer = target as ScrollViewer;
- if (scrollViewer != null)
- {
- scrollViewer.ScrollToVerticalOffset((double)e.NewValue);
- }
- }
-
- private static void ScrollerLoaded(object sender, RoutedEventArgs e)
- {
- ScrollAnimationBehavior.SetEventHandlersForScrollViewer(sender as ScrollViewer);
- }
-
- private static void ScrollViewerPreviewMouseWheel(object sender, MouseWheelEventArgs e)
- {
- double num;
- double num1 = ScrollAnimationBehavior._currentToValue;
- double delta = (double)e.Delta;
- ScrollViewer scrollViewer = (ScrollViewer)sender;
- double num2 = delta * 2 / 3;
- if (ScrollAnimationBehavior._storyboard == null || ScrollAnimationBehavior._storyboard.GetCurrentState() == ClockState.Filling)
- {
- ScrollAnimationBehavior._currentToValue = scrollViewer.VerticalOffset;
- }
- if (num2 > ScrollAnimationBehavior._currentToValue)
- {
- num = 0;
- }
- else
- {
- num = (ScrollAnimationBehavior._currentToValue - num2 > scrollViewer.ScrollableHeight ? scrollViewer.ScrollableHeight : ScrollAnimationBehavior._currentToValue - num2);
- }
- ScrollAnimationBehavior._currentToValue = num;
- if (ScrollAnimationBehavior._currentToValue != scrollViewer.VerticalOffset && ScrollAnimationBehavior._currentToValue != num1)
- {
- ScrollAnimationBehavior.AnimateScroll(scrollViewer);
- }
- e.Handled = true;
- }
-
- private static void SetEventHandlersForScrollViewer(ScrollViewer scroller)
- {
- scroller.PreviewMouseWheel += new MouseWheelEventHandler(ScrollAnimationBehavior.ScrollViewerPreviewMouseWheel);
- }
-
- public static void SetIsEnabled(FrameworkElement target, bool value)
- {
- target.SetValue(ScrollAnimationBehavior.IsEnabledProperty, value);
- }
-
- public static void SetPointsToScroll(FrameworkElement target, double value)
- {
- target.SetValue(ScrollAnimationBehavior.PointsToScrollProperty, value);
- }
-
- public static void SetTimeDuration(FrameworkElement target, TimeSpan value)
- {
- target.SetValue(ScrollAnimationBehavior.TimeDurationProperty, value);
- }
- }
-}
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