init1

.gitignore

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+/PhotoViewer/obj
+/PhotoViewer/*.csproj
+/PhotoViewer/bin
+/.vs

PhotoViewer.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.27428.2015
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PhotoViewer", "PhotoViewer\PhotoViewer.csproj", "{ED976A0A-C912-49C8-9A90-BF11381CAFF3}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{ED976A0A-C912-49C8-9A90-BF11381CAFF3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{ED976A0A-C912-49C8-9A90-BF11381CAFF3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{ED976A0A-C912-49C8-9A90-BF11381CAFF3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{ED976A0A-C912-49C8-9A90-BF11381CAFF3}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {3C4D356B-F825-4AEC-86EB-C7AAF86251AE}
+	EndGlobalSection
+EndGlobal

PhotoViewer/AnimateImage.cs

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+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.Linq;
+using System.Text;
+
+namespace PhotoViewer
+{
+    /// <summary>   
+    /// 表示一类带动画功能的图像。   
+    /// </summary>   
+    public class AnimateImage
+    {
+        Image image;
+        FrameDimension frameDimension;
+        /// <summary>   
+        /// 动画当前帧发生改变时触发。   
+        /// </summary>   
+        public event EventHandler<EventArgs> OnFrameChanged;
+
+        /// <summary>   
+        /// 实例化一个AnimateImage。   
+        /// </summary>   
+        /// <param name="img">动画图片。</param>   
+        public AnimateImage(Image img)
+        {
+            image = img;
+
+            lock (image)
+            {
+                mCanAnimate = ImageAnimator.CanAnimate(image);
+                if (mCanAnimate)
+                {
+                    Guid[] guid = image.FrameDimensionsList;
+                    frameDimension = new FrameDimension(guid[0]);
+                    mFrameCount = image.GetFrameCount(frameDimension);
+                }
+            }
+        }
+
+        bool mCanAnimate;
+        int mFrameCount = 1, mCurrentFrame = 0;
+
+        /// <summary>   
+        /// 图片。   
+        /// </summary>   
+        public Image Image
+        {
+            get { return image; }
+        }
+
+        /// <summary>   
+        /// 是否动画。   
+        /// </summary>   
+        public bool CanAnimate
+        {
+            get { return mCanAnimate; }
+        }
+
+        /// <summary>   
+        /// 总帧数。   
+        /// </summary>   
+        public int FrameCount
+        {
+            get { return mFrameCount; }
+        }
+
+        /// <summary>   
+        /// 播放的当前帧。   
+        /// </summary>   
+        public int CurrentFrame
+        {
+            get { return mCurrentFrame; }
+        }
+
+        /// <summary>   
+        /// 播放这个动画。   
+        /// </summary>   
+        public void Play()
+        {
+            if (mCanAnimate)
+            {
+                lock (image)
+                {
+                    ImageAnimator.Animate(image, new EventHandler(FrameChanged));
+                }
+            }
+        }
+
+        /// <summary>   
+        /// 停止播放。   
+        /// </summary>   
+        public void Stop()
+        {
+            if (mCanAnimate)
+            {
+                lock (image)
+                {
+                    ImageAnimator.StopAnimate(image, new EventHandler(FrameChanged));
+                }
+            }
+        }
+
+        public void Dispose()
+        {
+            OnFrameChanged = null;
+            try
+            {
+                Stop();
+
+            }
+            catch
+            {
+
+            }
+            lock (image)
+            {
+                if (image != null)
+                {
+                    image.Dispose();
+                }
+            }
+
+
+        }
+
+        /// <summary>   
+        /// 重置动画，使之停止在第0帧位置上。   
+        /// </summary>   
+        public void Reset()
+        {
+            if (mCanAnimate)
+            {
+                ImageAnimator.StopAnimate(image, new EventHandler(FrameChanged));
+                lock (image)
+                {
+                    image.SelectActiveFrame(frameDimension, 0);
+                    mCurrentFrame = 0;
+                }
+            }
+        }
+
+        private void FrameChanged(object sender, EventArgs e)
+        {
+            mCurrentFrame = mCurrentFrame + 1 >= mFrameCount ? 0 : mCurrentFrame + 1;
+            lock (image)
+            {
+                image.SelectActiveFrame(frameDimension, mCurrentFrame);
+            }
+            if (OnFrameChanged != null)
+            {
+                OnFrameChanged(image, e);
+            }
+        }
+    }
+}