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

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????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
?????目錄???????????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
?????目錄???????????0??2016-01-15?21:16??GifImageLib\bin\
?????目錄???????????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
?????目錄???????????0??2016-01-15?21:16??GifImageLib\obj\
?????目錄???????????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
?????目錄???????????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
?????目錄???????????0??2016-01-15?22:16??WpfTest\
?????目錄???????????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
............此處省略67個(gè)文件信息