■ AnimationTimeline 클래스를 사용해 커스텀 브러시 애니메이션을 만드는 방법을 보여준다.
▶ BrushAnimation.cs
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using System; using System.Windows; using System.Windows.Controls; using System.Windows.Media; using System.Windows.Media.Animation; namespace TestProject { /// <summary> /// 브러시 애니메이션 /// </summary> public class BrushAnimation : AnimationTimeline { //////////////////////////////////////////////////////////////////////////////////////////////////// Dependency Property ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region Easing 함수 속성 - EasingFunctionProperty /// <summary> /// Easing 함수 속성 /// </summary> public static readonly DependencyProperty EasingFunctionProperty = DependencyProperty.Register ( "EasingFunction", typeof(IEasingFunction), typeof(BrushAnimation), new PropertyMetadata(null) ); #endregion #region FROM 속성 - FromProperty /// <summary> /// FROM 속성 /// </summary> public static readonly DependencyProperty FromProperty = DependencyProperty.Register ( "From", typeof(Brush), typeof(BrushAnimation), new PropertyMetadata(null) ); #endregion #region To 속성 - ToProperty /// <summary> /// To 속성 /// </summary> public static readonly DependencyProperty ToProperty = DependencyProperty.Register ( "To", typeof(Brush), typeof(BrushAnimation), new PropertyMetadata(null) ); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 타겟 속성 타입 - TargetPropertyType /// <summary> /// 타겟 속성 타입 /// </summary> public override Type TargetPropertyType => typeof(Brush); #endregion #region Easing 함수 - EasingFunction /// <summary> /// Easing 함수 /// </summary> public IEasingFunction EasingFunction { get { return (IEasingFunction)GetValue(EasingFunctionProperty); } set { SetValue(EasingFunctionProperty, value); } } #endregion #region From - From /// <summary> /// From /// </summary> public Brush From { get { return (Brush)GetValue(FromProperty); } set { SetValue(FromProperty, value); } } #endregion #region To - To /// <summary> /// To /// </summary> public Brush To { get { return (Brush)GetValue(ToProperty); } set { SetValue(ToProperty, value); } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 현재 값 구하기 - GetCurrentValue(defaultOriginValue, defaultDestinationValue, animationClock) /// <summary> /// 현재 값 구하기 /// </summary> /// <param name="defaultOriginValue">디폴트 초기 값</param> /// <param name="defaultDestinationValue">디폴트 목적 값</param> /// <param name="animationClock">애니메이션 클럭</param> /// <returns>현재 값</returns> public override object GetCurrentValue(object defaultOriginValue, object defaultDestinationValue, AnimationClock animationClock) { if(!animationClock.CurrentProgress.HasValue) { return Brushes.Transparent; } Brush originValue = From ?? defaultOriginValue as Brush; Brush destinationValue = To ?? defaultDestinationValue as Brush; double progress = animationClock.CurrentProgress.Value; if(progress == 0) { return originValue; } if(progress == 1) { return destinationValue; } IEasingFunction easingFunction = EasingFunction; if(easingFunction != null) { progress = easingFunction.Ease(progress); } return new VisualBrush ( new Border() { Width = 1, Height = 1, Background = originValue, Child = new Border() { Background = destinationValue, Opacity = progress, } } ); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 인스턴스 생성하기 (코어) - CreateInstanceCore() /// <summary> /// 인스턴스 생성하기 (코어) /// </summary> /// <returns>인스턴스</returns> protected override Freezable CreateInstanceCore() { return new BrushAnimation(); } #endregion } } |
▶ MainWindow.xaml
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<Window x:Class="TestProject.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:TestProject" Width="800" Height="600" Title="AnimationTimeline 클래스 : 커스텀 브러시 애니메이션 사용하기" FontFamily="나눔고딕코딩" FontSize="16"> <Grid> <Rectangle Name="rectangle" Width="300" Height="300" Fill="Gold" /> </Grid> <Window.Triggers> <EventTrigger RoutedEvent="Window.Loaded"> <BeginStoryboard> <Storyboard> <local:BrushAnimation Storyboard.TargetName="rectangle" Storyboard.TargetProperty="Fill" RepeatBehavior="Forever" AutoReverse="True" Duration="00:00:01" From="Gold" To="Blue" /> </Storyboard> </BeginStoryboard> </EventTrigger> </Window.Triggers> </Window> |
