using?System;
using?System.Drawing;
using?System.Drawing.Imaging;
using?System.IO;

namespace?ItcastCater
{
????///?

????///?圖片處理
????///?

????public?class?CImageLibrary
????{

????????///?

????????///?檢查圖片返回的結果
????????///?

????????public?enum?ValidateImageResult?{?OK?InvalidFileSize?InvalidImageSize?}

????????///?

????????///?檢查圖片文件大小
????????///?

????????///?圖片文件
????????///?最大文件大小
????????///?最大寬度
????????///?最大高度
????????///?返回檢查結果
????????public?static?ValidateImageResult?ValidateImage（string?file?int?MAX_FILE_SIZE?int?MAX_WIDTH?int?MAX_HEIGHT）
????????{
????????????byte[]?bs?=?File.ReadAllBytes（file）;
????????????double?size?=?（bs.Length?/?1024）;

????????????//大于50KB
????????????if?（size?>?MAX_FILE_SIZE）?return?ValidateImageResult.InvalidFileSize;

????????????Image?img?=?null;
????????????try
????????????{
????????????????img?=?Image.FromFile（file）;
????????????????if?（img.Width?>?MAX_WIDTH?||?img.Height?>?MAX_HEIGHT）
????????????????????return?ValidateImageResult.InvalidImageSize;
????????????????else
????????????????????return?ValidateImageResult.OK;
????????????}
????????????finally
????????????{
????????????????img.Dispose（）;
????????????}
????????}

????????///?

????????///?按寬度比例縮小圖片
????????///?

????????///?原始圖片
????????///?最大寬度
????????///?
????????public?static?Image?ResizeImage（Image?imgSource?int?MAX_WIDTH?int?MAX_HEIGHT）
????????{
????????????Image?imgOutput?=?imgSource;

????????????Size?size?=?new?Size（0?0）;?//用于存儲按比例計算后的寬和高參數

????????????if?（imgSource.Width?<=?3?||?imgSource.Height?<=?3）?return?imgSource;?//3X3大小的圖片不轉換

????????????//按寬度縮放圖片
????????????if?（imgSource.Width?>?MAX_WIDTH）?//計算寬度
????????????{
????????????????double?rate?=?MAX_WIDTH?/?（double）imgSource.Width;?//計算寬度比例因子

????????????????size.Width?=?Convert.ToInt32（imgSource.Width?*?rate）;
????????????????size.Height?=?Convert.ToInt32（imgSource.Height?*?rate）;
????????????????imgOutput?=?imgSource.GetThumbnailImage（size.Width?size.Height?null?IntPtr.Zero）;
????????????}

????????????//按高度縮放圖片
????????????if?（imgOutput.Height?>?MAX_HEIGHT）//計算高度
????????????{
????????????????double?rate?=?MAX_HEIGHT?/?（double）imgOutput.Height;?//計算寬度比例因子

????????????????size.Width?=?Convert.ToInt32（imgOutput.Width?*?rate）;
????????????????size.Height?=?Convert.ToInt32（imgOutput.Height?*?rate）;
????????????????imgOutput?=?imgSource.GetThumbnailImage（size.Width?size.Height?null?IntPtr.Zero）;
????????????}

????????????return?imgOutput;
????????}

????????///?

????????///?圖片轉換為數組
????????///?

????????///?圖片文件
????????///?<

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????2569??2016-03-25?16:34??ImgNew\Img.sln

????..A..H.?????82944??2016-03-30?16:12??ImgNew\Img.suo

?????文件?????157175??2016-03-02?09:27??ImgNew\pl\bin\Debug\FA20163292733.png

?????文件??????83456??2016-03-28?17:21??ImgNew\pl\bin\Debug\ImageManage.exe

?????文件??????91648??2016-03-28?17:21??ImgNew\pl\bin\Debug\ImageManage.pdb

?????文件??????11600??2016-03-30?16:12??ImgNew\pl\bin\Debug\ImageManage.vshost.exe

?????文件????????490??2014-01-13?21:31??ImgNew\pl\bin\Debug\ImageManage.vshost.exe.manifest

?????文件??????87552??2016-02-26?16:43??ImgNew\pl\bin\Debug\pl.pdb

?????文件????????490??2014-01-13?21:31??ImgNew\pl\bin\Debug\pl.vshost.exe.manifest

?????文件???????7412??2016-02-24?09:02??ImgNew\pl\CImageLibrary.cs

?????文件???????3559??2016-03-01?17:27??ImgNew\pl\DevTreelist.cs

?????文件??????40842??2016-03-28?17:00??ImgNew\pl\FrmImage.cs

?????文件??????34014??2016-03-28?15:36??ImgNew\pl\FrmImage.Designer.cs

?????文件??????25330??2016-03-28?15:36??ImgNew\pl\FrmImage.resx

?????文件??????24147??2016-02-26?14:21??ImgNew\pl\ImageClass.cs

?????文件???????5596??2016-03-25?16:44??ImgNew\pl\ImageManege.csproj

?????文件???????9198??2016-03-02?09:01??ImgNew\pl\ImageWatermark.cs

?????文件??????78386??2016-03-28?08:40??ImgNew\pl\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????7178??2016-03-28?17:21??ImgNew\pl\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件??????83456??2016-03-28?17:21??ImgNew\pl\obj\x86\Debug\ImageManage.exe

?????文件????????578??2016-03-28?17:21??ImgNew\pl\obj\x86\Debug\imagemanage.exe.licenses

?????文件??????91648??2016-03-28?17:21??ImgNew\pl\obj\x86\Debug\ImageManage.pdb

?????文件???????1081??2016-03-30?16:12??ImgNew\pl\obj\x86\Debug\ImageManege.csproj.FileListAbsolute.txt

?????文件????????978??2016-03-28?15:37??ImgNew\pl\obj\x86\Debug\ImageManege.csproj.GenerateResource.Cache

?????文件??????93031??2016-03-28?14:01??ImgNew\pl\obj\x86\Debug\ImageManege.csprojResolveAssemblyReference.cache

?????文件???????3445??2016-02-26?17:10??ImgNew\pl\obj\x86\Debug\pl.csproj.FileListAbsolute.txt

?????文件???????1036??2016-02-26?13:19??ImgNew\pl\obj\x86\Debug\pl.csproj.GenerateResource.Cache

?????文件??????75903??2016-02-26?16:41??ImgNew\pl\obj\x86\Debug\pl.csprojResolveAssemblyReference.cache

?????文件????????569??2016-02-26?16:43??ImgNew\pl\obj\x86\Debug\pl.exe.licenses

?????文件????????180??2016-03-28?14:01??ImgNew\pl\obj\x86\Debug\pl.Properties.Resources.resources

............此處省略105個文件信息