public void TestImageThumbnail()
{
var originalImageStoreFileInfoFirst = new FileStoreInfo("C:\\按周查看.bmp");
var originalImageStoreFileInfoSecond = new FileStoreInfo()
{
FileNameWithoutExtension = "按周查看",
FileDirectory = "c:\\",
ExtensionName = ".bmp"
};
var thumbnailPropertyFisrt = new ThumbnailProperty()
{
Color = Color.White,
Width = 200,
Height = 200
};
var thumbnailPropertySecond = new ThumbnailProperty()
{
Color = Color.Transparent,
Width = 940,
Height = 360
};
var thumbnailPropertyThird = DefaultThumbnailNameProvider
.GetThumbnailPropertyFromFileName("C:\\按周查看.bmp_thumb_800x400x0xoooooo.png");
var ogrinalFileInfo =
DefaultThumbnailNameProvider.GetOriginalFileNameFromFileName("C:\\按周查看.bmp_thumb_800x400x0xoooooo.png");
ImageUtility.Thumbnail(originalImageStoreFileInfoFirst, thumbnailPropertyFisrt);
ImageUtility.Thumbnail(originalImageStoreFileInfoSecond, thumbnailPropertySecond);
ImageUtility.Thumbnail(originalImageStoreFileInfoSecond, thumbnailPropertyThird);
}
public static void Thumbnail(FileStoreInfo originalImageFileInfo, ThumbnailProperty thumbnailProperty, IThumbnailNameProvider thumbnailWriteProvider = null, params ThumbnailProperty[] thumbnailProperties)
{
var defaultThumbnailWriteProvider = thumbnailWriteProvider;
if (originalImageFileInfo == null)
throw new ArgumentNullException("originalImageFileInfo");
if (string.IsNullOrEmpty(originalImageFileInfo.FileNameWithExtension))
throw new ArgumentException("originalImageFileInfo.FileNameWithExtension不能为空");
if (thumbnailProperty == null)
throw new ArgumentNullException("thumbnailProperty");
if (!File.Exists(originalImageFileInfo.FullFileName))
throw new FileNotFoundException(string.Format("路径：{0}的不存在", originalImageFileInfo.FullFileName));
if (thumbnailWriteProvider == null)
defaultThumbnailWriteProvider = new DefaultThumbnailNameProvider();
var unionThumbnailPropertyies = new[] { thumbnailProperty };
if (thumbnailProperties != null)
{
unionThumbnailPropertyies = unionThumbnailPropertyies.Union(thumbnailProperties).ToArray();
}
var originalImage = System.Drawing.Image.FromFile(originalImageFileInfo.FullFileName);
foreach (var property in unionThumbnailPropertyies)
{
var fileInfo = defaultThumbnailWriteProvider.GetThumbnailFileInfo(originalImageFileInfo, thumbnailProperty);
var thumbnailImage = CreateThumbnailImage(originalImage, property);
thumbnailImage.Save(fileInfo.FullFileName);
}
}
public void ProcessRequest(HttpContext context)
{
var paramsStr = context.Request["params"];
//判断图片是否存在
var physicalPath = context.Request.PhysicalPath;
if (string.IsNullOrEmpty(paramsStr))
{
context.Response.WriteFile(context.Request.PhysicalPath);
return;
}
var thumbProperty = DefaultThumbnailNameProvider.GetThumbnailPropertyFromParamExpression(paramsStr);
if (thumbProperty == null)
{
context.Response.WriteFile(context.Request.PhysicalPath);
return;
}
var defaultThumbnailNameProvider = new DefaultThumbnailNameProvider();
var originalFileInfo = new FileStoreInfo(physicalPath);
var thumbImageFileInfo = defaultThumbnailNameProvider.GetThumbnailFileInfo(originalFileInfo, thumbProperty);
if (!File.Exists(thumbImageFileInfo.FullFileName))
{
ImageUtility.Thumbnail(originalFileInfo, thumbProperty, defaultThumbnailNameProvider);
}
context.Response.ClearHeaders();
context.Response.ContentType = "image/jpeg";
context.Response.Headers.Add("Content-Type","image/jpeg");
//context.Response.AddHeader("Content-Disposition", "attachment;filename=" + originalFileInfo.FileNameWithExtension);
context.Response.WriteFile(thumbImageFileInfo.FullFileName);
}
public FileStoreInfo GetThumbnailFileInfo(FileStoreInfo originalFileInfo, ThumbnailProperty thumbnailProperty)
{
Console.WriteLine(ColorHelper.ColorToHex(thumbnailProperty.Color));
const string templateOfThumbName = "_thumb_{0}x{1}x{2}x{3}x{4}";
//原文件名+"_thumb_[0width]x[1height]x[2zoomModeld]x[3fillModel]x[4color]"
var postfix = string.Format(templateOfThumbName, thumbnailProperty.Width, thumbnailProperty.Height,
(int)thumbnailProperty.ZoomModel, (int)thumbnailProperty.GraphFillModel, ColorHelper.ColorToHex(thumbnailProperty.Color));
var fileStoreInfo = new FileStoreInfo()
{
ExtensionName = string.IsNullOrEmpty(thumbnailProperty.ExtensionName)
? originalFileInfo.ExtensionName
: thumbnailProperty.ExtensionName,
FileNameWithoutExtension = originalFileInfo.FileNameWithExtension + postfix,
FileDirectory = originalFileInfo.FileDirectory
};
return(fileStoreInfo);
}
public static void Thumbnail(FileStoreInfo originalImageFileInfo, ThumbnailProperty thumbnailProperty, IThumbnailNameProvider thumbnailWriteProvider = null, params ThumbnailProperty[] thumbnailProperties)
{
var defaultThumbnailWriteProvider = thumbnailWriteProvider;
if (originalImageFileInfo == null)
{
throw new ArgumentNullException("originalImageFileInfo");
}
if (string.IsNullOrEmpty(originalImageFileInfo.FileNameWithExtension))
{
throw new ArgumentException("originalImageFileInfo.FileNameWithExtension不能为空");
}
if (thumbnailProperty == null)
{
throw new ArgumentNullException("thumbnailProperty");
}
if (!File.Exists(originalImageFileInfo.FullFileName))
{
throw new FileNotFoundException(string.Format("路径：{0}的不存在", originalImageFileInfo.FullFileName));
}
if (thumbnailWriteProvider == null)
{
defaultThumbnailWriteProvider = new DefaultThumbnailNameProvider();
}
var unionThumbnailPropertyies = new[] { thumbnailProperty };
if (thumbnailProperties != null)
{
unionThumbnailPropertyies = unionThumbnailPropertyies.Union(thumbnailProperties).ToArray();
}
var originalImage = System.Drawing.Image.FromFile(originalImageFileInfo.FullFileName);
foreach (var property in unionThumbnailPropertyies)
{
var fileInfo = defaultThumbnailWriteProvider.GetThumbnailFileInfo(originalImageFileInfo, thumbnailProperty);
var thumbnailImage = CreateThumbnailImage(originalImage, property);
thumbnailImage.Save(fileInfo.FullFileName);
}
}
public FileStoreInfo GetThumbnailFileInfo(FileStoreInfo originalFileInfo, ThumbnailProperty thumbnailProperty)
{
Console.WriteLine(ColorHelper.ColorToHex(thumbnailProperty.Color));
const string templateOfThumbName = "_thumb_{0}x{1}x{2}x{3}x{4}";
//原文件名+"_thumb_[0width]x[1height]x[2zoomModeld]x[3fillModel]x[4color]"
var postfix = string.Format(templateOfThumbName, thumbnailProperty.Width, thumbnailProperty.Height,
(int)thumbnailProperty.ZoomModel, (int)thumbnailProperty.GraphFillModel, ColorHelper.ColorToHex(thumbnailProperty.Color));
var fileStoreInfo = new FileStoreInfo()
{
ExtensionName = string.IsNullOrEmpty(thumbnailProperty.ExtensionName)
? originalFileInfo.ExtensionName
: thumbnailProperty.ExtensionName,
FileNameWithoutExtension = originalFileInfo.FileNameWithExtension + postfix,
FileDirectory = originalFileInfo.FileDirectory
};
return fileStoreInfo;
}
