■ Image 클래스를 사용해 움직이는 GIF 이미지를 만드는 방법을 보여준다.
▶ GIFImage.cs
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using System; using System.Windows.Media.Imaging; using System.Windows; using System.Windows.Controls; namespace TestProject; /// <summary> /// GIF 이미지 /// </summary> public class GIFImage : Image { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 디코더 /// </summary> private BitmapDecoder decoder = null; /// <summary> /// 타이머 /// </summary> private System.Timers.Timer timer = new System.Timers.Timer(); /// <summary> /// 타이머 잠금 /// </summary> private object timerLock = new object(); /// <summary> /// 프레임 카운트 /// </summary> private int frameCount = 0; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 타이머 주기 - Interval /// <summary> /// 타이머 주기 /// </summary> public double Interval { get { return this.timer.Interval; } set { this.timer.Interval = value; } } #endregion #region 재생 여부 - IsPlaying /// <summary> /// 재생 여부 /// </summary> public bool IsPlaying { get; private set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - GIFImage() /// <summary> /// 생성자 /// </summary> public GIFImage() : base() { IsPlaying = false; Interval = 100; this.timer.Elapsed += timer_Elapsed; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 시작하기 - Start() /// <summary> /// 시작하기 /// </summary> public void Start() { lock(this.timerLock) { if(this.decoder != null && this.decoder.Frames.Count > 1) { if(IsPlaying == false) { IsPlaying = true; this.timer.Start(); } } } } #endregion #region 중단하기 - Stop() /// <summary> /// 중단하기 /// </summary> public void Stop() { lock(this.timerLock) { IsPlaying = false; this.timer.Stop(); } } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 속성 변경시 처리하기 - OnPropertyChanged(e) /// <summary> /// 속성 변경시 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnPropertyChanged(DependencyPropertyChangedEventArgs e) { if(e.Property.Name == "Source") { if(e.NewValue != null && (e.OldValue == null || (e.NewValue.ToString() != e.OldValue.ToString()))) { Stop(); try { GifBitmapDecoder decoder = new GifBitmapDecoder(new Uri(e.NewValue.ToString()), BitmapCreateOptions.PreservePixelFormat, BitmapCacheOption.None); this.decoder = decoder; } catch { } Start(); } } base.OnPropertyChanged(e); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 타이머 경과시 처리하기 - timer_Elapsed(sender, e) /// <summary> /// 타이머 경과시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e) { Dispatcher.BeginInvoke ( new Action ( delegate { this.frameCount = ++this.frameCount % this.decoder.Frames.Count; Source = this.decoder.Frames[this.frameCount]; InvalidateArrange(); } ), null ); } #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="TestProject" FontFamily="나눔고딕코딩" FontSize="16"> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center"> <local:GIFImage HorizontalAlignment="Center" SnapsToDevicePixels="True" UseLayoutRounding="True" RenderOptions.BitmapScalingMode="NearestNeighbor" Stretch="None" Interval="100" Source="pack://application:,,,/IMAGE/elephant.gif" /> </StackPanel> </Window> |
