wpf美化tabcontroll并且支持gif动画

此项目中有两个工程 WpfTest 附加 GifImageLib 即可使用 美化了tabcontrol控件，同时支持gif动画，学习的好资料

using System;
using System.IO;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media.Imaging;
using System.Windows.Threading;

namespace GifImageLib
{
    
    class GifAnimation : Viewbox
    {
       
        private class Gifframe : Image
        {
            
            public int delayTime;

            public int disposalMethod;
           
            public int left;
            
            public int top;
            
            public int width;
            
            public int height;
        }

        private Canvas canvas = null;

        private Listame> frameList = null;

        private int frameCounter = 0;
        private int numberOfframes = 0;

        private int numberOfLoops = -1;
        private int currentLoop = 0;

        private int logicalWidth = 0;
        private int logicalHeight = 0;

        private DispatcherTimer frameTimer = null;

        private Gifframe currentParseGifframe;

        public GifAnimation（）
        {
            canvas = new Canvas（）;
            this.Child = canvas;
        }

        private void Reset（）
        {
            if （frameList != null）
            {
                frameList.Clear（）;
            }
            frameList = null;
            frameCounter = 0;
            numberOfframes = 0;
            numberOfLoops = -1;
            currentLoop = 0;
            logicalWidth = 0;
            logicalHeight = 0;
            if （frameTimer != null）
            {
                frameTimer.Stop（）;
                frameTimer = null;
            }
        }

        #region PARSE
        private void ParseGif（byte[] gifData）
        {
            frameList = new Listame>（）;
            currentParseGifframe = new Gifframe（）;
            ParseGifDataStream（gifData 0）;
        }

       
        private int ParseBlock（byte[] gifData int offset）
        {
            switch （gifData[offset]）
            {
                case 0x21:
                    if （gifData[offset + 1] == 0xF9）
                    {
                        return ParseGraphicControlExtension（gifData offset）;
                    }
                    else
                    {
                        return ParseExtensionBlock（gifData offset）;
                    }
                case 0x2C:
                    offset = ParseGraphicBlock（gifData offset）;
                    frameList.Add（currentParseGifframe）;
                    currentParseGifframe = new Gifframe（）;
                    return offset;
                case 0x3B:
                    return -1;
                default:
                    throw new Exception（“GIF format incorrect: missing graphic block or special-purpose block. “）;
            }
        }

        private int ParseGraphicControlExtension（byte[] gifData int offset）
        {
            int return

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2016-01-15 22:24  GifImageLib\
     文件       11103  2007-12-23 15:56  GifImageLib\GifAnimation.cs
     文件       14264  2016-01-15 22:24  GifImageLib\GifImage.cs
     文件        3870  2016-01-15 21:13  GifImageLib\GifImageLib.csproj
     目录           0  2016-01-15 21:16  GifImageLib\Properties\
     文件        2290  2007-12-23 12:37  GifImageLib\Properties\AssemblyInfo.cs
     文件        2862  2016-01-15 21:13  GifImageLib\Properties\Resources.Designer.cs
     文件        5612  2007-12-23 12:37  GifImageLib\Properties\Resources.resx
     文件        1111  2016-01-15 21:13  GifImageLib\Properties\Settings.Designer.cs
     文件         201  2007-12-23 12:37  GifImageLib\Properties\Settings.settings
     目录           0  2016-01-15 21:16  GifImageLib\bin\
     目录           0  2016-01-15 21:31  GifImageLib\bin\Debug\
     文件       17920  2016-01-15 22:24  GifImageLib\bin\Debug\GifImageLib.dll
     文件       38400  2016-01-15 22:24  GifImageLib\bin\Debug\GifImageLib.pdb
     目录           0  2016-01-15 21:16  GifImageLib\obj\
     目录           0  2016-01-15 22:15  GifImageLib\obj\Debug\
     文件        6927  2016-01-15 21:17  GifImageLib\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件         180  2016-01-15 21:31  GifImageLib\obj\Debug\GifImageLib.Properties.Resources.resources
     文件        1117  2016-01-15 22:15  GifImageLib\obj\Debug\GifImageLib.csproj.FileListAbsolute.txt
     文件         789  2016-01-15 21:31  GifImageLib\obj\Debug\GifImageLib.csproj.GenerateResource.Cache
     文件        1824  2016-01-15 22:15  GifImageLib\obj\Debug\GifImageLib.csprojResolveAssemblyReference.cache
     文件       17920  2016-01-15 22:24  GifImageLib\obj\Debug\GifImageLib.dll
     文件       38400  2016-01-15 22:24  GifImageLib\obj\Debug\GifImageLib.pdb
     目录           0  2016-01-15 21:16  GifImageLib\obj\Debug\TempPE\
     文件        3584  2016-01-15 21:13  GifImageLib\obj\Debug\TempPE\Properties.Resources.Designer.cs.dll
     目录           0  2016-01-15 22:16  WpfTest\
     目录           0  2016-01-15 20:56  WpfTest\Entity\
     文件        2314  2016-01-15 20:56  WpfTest\Entity\TabEntity.cs
     文件        2218  2016-01-14 21:54  WpfTest\Form1.Designer.cs
     文件         357  2016-01-14 21:54  WpfTest\Form1.cs
     文件        5817  2016-01-14 21:54  WpfTest\Form1.resx
............此处省略67个文件信息