public bool WriteDocument(List <byte[]> images, string file_out)
{
XpsDocument doc = null;
IXpsFixedDocumentSequenceWriter docSeqWriter = null;
IXpsFixedDocumentWriter docWriter = null;
if (LogHelper.CanDebug())
{
LogHelper.Begin("XpsHelper.WriteDocument");
}
try
{
// xps doc does not manage overwrite, so delete before if exist
if (File.Exists(file_out))
{
File.Delete(file_out);
}
// create the document
doc = new XpsDocument(file_out, FileAccess.ReadWrite, CompressionOption.NotCompressed);
// Create the document sequence
docSeqWriter = doc.AddFixedDocumentSequence();
// Create the document
docWriter = docSeqWriter.AddFixedDocument();
for (int i = 0; i < images.Count; ++i)
{
// Create the Page
IXpsFixedPageWriter pageWriter = docWriter.AddFixedPage();
// Get the XmlWriter
XmlWriter xmlWriter = pageWriter.XmlWriter;
//create the xps image resource
XpsImage xpsImage = pageWriter.AddImage(XpsImageType.JpegImageType);
using (Stream dstImageStream = xpsImage.GetStream())
{
dstImageStream.Write(images[i], 0, images[i].Length);
xpsImage.Commit();
}
//this is just to get the real WPF image size as WPF display units and not image pixel size !!
using (MemoryStream ms = new MemoryStream(images[i]))
{
BitmapImage myImage = new BitmapImage();
myImage.BeginInit();
myImage.CacheOption = BitmapCacheOption.OnLoad;
myImage.StreamSource = ms;
myImage.EndInit();
//write the page
WritePageContent(xmlWriter, xpsImage, myImage.Width, myImage.Height);
}
//with the first page, create the thumbnail of the xps document
if (i == 0)
{
XpsThumbnail thumb = doc.AddThumbnail(XpsImageType.JpegImageType);
using (MemoryStream ms = new MemoryStream(images[i]))
{
BitmapImage thumbImage = new BitmapImage();
thumbImage.BeginInit();
thumbImage.DecodePixelWidth = 256;
thumbImage.CacheOption = BitmapCacheOption.OnLoad;
thumbImage.StreamSource = ms;
thumbImage.EndInit();
using (Stream xpsThumbStream = thumb.GetStream())
{
JpegBitmapEncoder encoder = new JpegBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(thumbImage));
encoder.Save(xpsThumbStream);
}
}
thumb.Commit();
}
xmlWriter.Flush();
// Close the page
pageWriter.Commit();
}
return(true);
}
catch (Exception err)
{
LogHelper.Manage("XpsHelper.WriteDocument", err);
return(false);
}
finally
{
if (docWriter != null)
{
docWriter.Commit();
}
if (docSeqWriter != null)
{
docSeqWriter.Commit();
}
if (doc != null)
{
doc.Close();
}
LogHelper.End("XpsHelper.WriteDocument");
}
}
