private static string GetFilePath(HttpPostedFile postedFile, ref CreateFolderMode mode, string vitualPath)
{
string prefixName = Path.GetFileNameWithoutExtension(vitualPath);
if (prefixName.Length > 0)
{
vitualPath = vitualPath.Trim(prefixName.ToCharArray());
}
StringBuilder sb = new StringBuilder(vitualPath);
DateTime now = DateTime.Now;
switch (mode)
{
case CreateFolderMode.Daily:
sb.Append(now.ToString("yyyyMM'/'dd'/'"));
break;
case CreateFolderMode.Hourly:
sb.Append(now.ToString("yyyyMM'/'dd'/'HH'/'"));
break;
default:
sb.Append(now.ToString("yyyyMM'/'"));
break;
}
HttpContext context = HttpContext.Current;
App.CreateDirectory(context.Server.MapPath(sb.ToString()));
return(sb.Append(prefixName).Append(StringHelper.NowDateString).Append(Path.GetExtension(postedFile.FileName)).ToString());
}
public static string SaveImageAs(this HttpPostedFile postedFile, CreateFolderMode mode, string savePath)
{
string vrtualFilePath = null;
byte[] buffer = new byte[postedFile.ContentLength];
postedFile.InputStream.Read(buffer, 0, buffer.Length);
if (FileValidator.ValidateImage(buffer))
{
vrtualFilePath = GetFilePath(postedFile, ref mode, savePath);
HttpContext context = HttpContext.Current;
string physicalFilePath = context.Server.MapPath(vrtualFilePath);
App.CreateDirectory(physicalFilePath);
File.WriteAllBytes(physicalFilePath, buffer);
}
return(vrtualFilePath);
}
public static string[] SaveImageAs(this HttpPostedFile postedFile, CreateFolderMode mode, WaterMarkInfo waterMarkInfo, params ThumbnailInfo[] thumbnailInfoArray)
{
string[] vrtualFilePaths = new string[1 + thumbnailInfoArray.Length];
byte[] buffer = new byte[postedFile.ContentLength];
postedFile.InputStream.Read(buffer, 0, buffer.Length);
if (FileValidator.ValidateImage(buffer))
{
HttpContext context = HttpContext.Current;
string vitualFilePath, physicalFilePath;
Image image = Image.FromStream(new MemoryStream(buffer));
if (image.RawFormat.Guid == ImageFormat.Gif.Guid)
{
vitualFilePath = GetFilePath(postedFile, ref mode, waterMarkInfo.SavePath);
physicalFilePath = context.Server.MapPath(vitualFilePath);
image.Save(physicalFilePath);
if (waterMarkInfo.Mode != WaterMarkInfo.ExecuteMode.Skip)
{
if (waterMarkInfo.Mode == WaterMarkInfo.ExecuteMode.Image)
{
using (Bitmap waterImg = waterMarkInfo.GetImage())
{
float x = image.Width - waterImg.Width - 24F, y = image.Height - waterImg.Height - 24F;
GifHelper.WaterMark(physicalFilePath, waterImg, x, y, physicalFilePath);
}
}
else
{
float x = image.Width - waterMarkInfo.TextSize - 24F, y = image.Height - waterMarkInfo.TextSize - 24F;
GifHelper.SmartWaterMark(physicalFilePath, waterMarkInfo.Text, ColorTranslator.FromHtml(waterMarkInfo.TextColor), new Font("宋体", waterMarkInfo.TextSize), x, y, physicalFilePath);
}
vrtualFilePaths[0] = vitualFilePath;
}
string srcPhysicalFilePath = physicalFilePath;
for (int i = 0; i < thumbnailInfoArray.Length;)
{
ThumbnailInfo thumbnailInfo = thumbnailInfoArray[i];
vitualFilePath = GetFilePath(postedFile, ref mode, thumbnailInfo.SavePath);
physicalFilePath = context.Server.MapPath(vitualFilePath);
SizeF size = GDIHelper.GetProportionSize(new SizeF(thumbnailInfo.Width, thumbnailInfo.Height), image.Size);
GifHelper.GetThumbnail(srcPhysicalFilePath, (double)size.Width / (double)image.Width, physicalFilePath);
vrtualFilePaths[++i] = vitualFilePath;
}
}
else
{
if (waterMarkInfo.Mode != WaterMarkInfo.ExecuteMode.Skip)
{
vitualFilePath = GetFilePath(postedFile, ref mode, waterMarkInfo.SavePath);
physicalFilePath = context.Server.MapPath(vitualFilePath);
if (waterMarkInfo.Mode == WaterMarkInfo.ExecuteMode.Image)
{
using (Bitmap waterImg = waterMarkInfo.GetImage())
{
GDIHelper.MakeWaterMark(image, waterImg, ContentAlignment.BottomRight, 24);
}
}
else
{
GDIHelper.MakeWaterMark(image, waterMarkInfo.Text, new Font("宋体", waterMarkInfo.TextSize), ColorTranslator.FromHtml(waterMarkInfo.TextColor), ContentAlignment.BottomRight, 24);
}
image.Save(physicalFilePath);
vrtualFilePaths[0] = vitualFilePath;
}
for (int i = 0; i < thumbnailInfoArray.Length;)
{
ThumbnailInfo thumbnailInfo = thumbnailInfoArray[i];
vitualFilePath = GetFilePath(postedFile, ref mode, thumbnailInfo.SavePath);
physicalFilePath = context.Server.MapPath(vitualFilePath);
Bitmap thumbnailImg = GDIHelper.GetThumbnailImage(image, new SizeF(thumbnailInfo.Width, thumbnailInfo.Height), thumbnailInfo.Mode);
thumbnailImg.Save(physicalFilePath);
vrtualFilePaths[++i] = vitualFilePath;
}
}
image.Dispose();
}
return(vrtualFilePaths);
}
