public void ResizeImage(HttpContext context)
{
Stream imageStream = null;
var imageNodePath = HttpContext.Current.Request.FilePath;
var content = Content.Create(PortalContext.Current.ContextNode);
var contentPath = "";
var contentFileName = "";
var contentId = -1;
CheckCacheFolder();
if (!string.IsNullOrEmpty(imageNodePath))
{
if (ImageType == "Binary")
{
var contentBinary = content.Fields["Binary"].GetData() as BinaryData;
if (contentBinary == null)
{
throw new Exception("Can not read Binary field from the given Content. Doesn't exists?");
}
imageStream = contentBinary.GetStream();
contentFileName = content.Name;
contentId = content.Id;
}
else if (ImageType == "ImageData")
{
if (!String.IsNullOrEmpty(ImageFieldName))
{
try
{
var contentImageFieldData = content.Fields[ImageFieldName].GetData() as SenseNet.ContentRepository.Fields.ImageField.ImageFieldData;
if (contentImageFieldData.ImgData.Size > 0)
{
imageStream = contentImageFieldData.ImgData.GetStream();
contentFileName = new FileInfo(contentImageFieldData.ImgData.FileName.FullFileName).Name;
contentId = contentImageFieldData.ImgData.Id;
}
else
{
imageStream = contentImageFieldData.ImgRef.Binary.GetStream();
contentFileName = new FileInfo(contentImageFieldData.ImgRef.Path).Name;
contentId = contentImageFieldData.ImgRef.Id;
}
}
catch (Exception)
{
throw new Exception("Invalid Image Field Name was given in the application.");
}
}
else
{
throw new Exception("There was no ImageFieldName specified when using ImageData as ImageType.");
}
}
else if (ImageType == "Reference")
{
if (!String.IsNullOrEmpty(ImageFieldName))
{
try
{
// ami még ide hiányzik:
// a GetData visszatérhet "null"-al, "Node"-ként illetve "List<Node>"-ként
// ebből már egy meg van valósítva, a többit kell még lekezelni
var referenceField = content.Fields[ImageFieldName].GetData() as List <Node>; //.GetType();// as ReferenceField;
var refContent = Content.Create(referenceField[0]);
var refContentBinary = refContent.Fields["Binary"].GetData() as BinaryData;
imageStream = refContentBinary.GetStream();
contentFileName = refContent.Name;
contentId = refContent.Id;
}
catch (Exception)
{
//TODO: empty catch block
}
}
else
{
throw new Exception("There was no ImageFieldName specified when using ImageData as ImageType.");
}
}
else if (ImageType == "Attachment")
{
if (!String.IsNullOrEmpty(ImageFieldName))
{
try
{
var binary = content.Fields[ImageFieldName].GetData() as BinaryData;
imageStream = binary.GetStream();
contentFileName = new FileInfo(binary.FileName.FullFileName).Name;
contentId = binary.Id;
}
catch (Exception)
{
throw new Exception(
String.Format("The given image field field '{0}' is not a valid binary field of an image.", ImageFieldName));
}
}
}
// generating contentPath
int lastDotIndex = contentFileName.LastIndexOf('.');
contentPath = lastDotIndex != -1
? contentFileName.Insert(lastDotIndex, String.Format("_{1}{0}", contentId.ToString(), ResizeType == ResizeTypeList.Resize ? "R_" : "C_"))
: String.Format("{0}_{2}{1}", contentFileName, contentId.ToString(), ResizeType == ResizeTypeList.Resize ? "R_" : "C_");
if (IsCached(contentPath))
{
FlushCachedFile(contentPath, context);
return;
}
if (ResizeType == ResizeTypeList.Resize)
{
//Resize image
imageStream = ImageResizer.CreateResizedImageFile(imageStream, Width, Height, 0, Stretch,
IsAutoOutputFormat ? GetImageFormat(GetMimeType(contentPath)) : this.ResizeOutputFormat,
this.ResizeSmoothingMode,
this.ResizeInterpolationMode,
this.ResizePixelOffsetMode);
}
else
{
double verticalDiff;
double horizontalDiff;
switch (CropVAlign.ToLower())
{
case "top":
verticalDiff = 0;
break;
case "center":
verticalDiff = -1;
break;
case "bottom":
verticalDiff = double.MaxValue;
break;
default:
try
{
verticalDiff = Convert.ToDouble(CropVAlign);
}
catch (Exception ex)
{
Logger.WriteException(ex);
verticalDiff = 0;
}
break;
}
switch (CropHAlign.ToLower())
{
case "left":
horizontalDiff = 0;
break;
case "center":
horizontalDiff = -1;
break;
case "right":
horizontalDiff = double.MaxValue;
break;
default:
try
{
horizontalDiff = Convert.ToDouble(CropHAlign);
}
catch (Exception ex)
{
Logger.WriteException(ex);
horizontalDiff = 0;
}
break;
}
//Crop image
imageStream = ImageResizer.CreateCropedImageFile(imageStream, Width, Height, 0,
IsAutoOutputFormat ? GetImageFormat(GetMimeType(contentPath)) : this.ResizeOutputFormat,
this.ResizeSmoothingMode,
this.ResizeInterpolationMode,
this.ResizePixelOffsetMode, verticalDiff, horizontalDiff);
}
Cache(imageStream, GetImageCachePath(contentPath));
FlushStream(imageStream, context, GetMimeType(contentPath));
return;
}
else
{
throw new Exception("There was no image in the requested file path.");
}
}
