private void SaveImage(System.Drawing.Image image, string suffix)
{
// store the resolution in output file.
// Call this method after actual draw because it may affect drawing the text
if (image is Bitmap)
{
(image as Bitmap).SetResolution(ResolutionX, ResolutionY);
}
if (IsMultiFrameTiff)
{
// select the image encoder
ImageCodecInfo info = ExportUtils.GetCodec("image/tiff");
EncoderParameters ep = new EncoderParameters(2);
ep.Param[0] = new EncoderParameter(Encoder.Compression, MonochromeTiff ?
(long)MonochromeTiffCompression : (long)EncoderValue.CompressionLZW);
if (image == masterTiffImage)
{
// save the master bitmap
if (MonochromeTiff)
{
masterTiffImage = ConvertToBitonal(image as Bitmap);
}
ep.Param[1] = new EncoderParameter(Encoder.SaveFlag, (long)EncoderValue.MultiFrame);
masterTiffImage.Save(Stream, info, ep);
}
else
{
// save the frame
if (MonochromeTiff)
{
System.Drawing.Image oldImage = image;
image = ConvertToBitonal(image as Bitmap);
oldImage.Dispose();
}
ep.Param[1] = new EncoderParameter(Encoder.SaveFlag, (long)EncoderValue.FrameDimensionPage);
masterTiffImage.SaveAdd(image, ep);
}
}
else if (ImageFormat != ImageExportFormat.Metafile)
{
string extension = Path.GetExtension(FileName);
string fileName = Path.ChangeExtension(FileName, suffix + extension);
// empty suffix means that we should use the Stream that was created in the ExportBase
Stream stream = suffix == "" ? Stream : new FileStream(fileName, FileMode.Create);
if (suffix != "")
{
GeneratedFiles.Add(fileName);
}
if (ImageFormat == ImageExportFormat.Jpeg)
{
ExportUtils.SaveJpeg(image, stream, JpegQuality);
}
else if (ImageFormat == ImageExportFormat.Tiff && MonochromeTiff)
{
// handle monochrome tiff separately
ImageCodecInfo info = ExportUtils.GetCodec("image/tiff");
EncoderParameters ep = new EncoderParameters();
ep.Param[0] = new EncoderParameter(Encoder.Compression, (long)MonochromeTiffCompression);
using (Bitmap bwImage = ConvertToBitonal(image as Bitmap))
{
bwImage.Save(stream, info, ep);
}
}
else
{
ImageFormat format = System.Drawing.Imaging.ImageFormat.Bmp;
switch (ImageFormat)
{
case ImageExportFormat.Gif:
format = System.Drawing.Imaging.ImageFormat.Gif;
break;
case ImageExportFormat.Png:
format = System.Drawing.Imaging.ImageFormat.Png;
break;
case ImageExportFormat.Tiff:
format = System.Drawing.Imaging.ImageFormat.Tiff;
break;
}
image.Save(stream, format);
}
if (suffix != "")
{
stream.Dispose();
}
}
if (image != masterTiffImage)
{
image.Dispose();
}
}