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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/*
Compile with:
"...../csc" \
/lib:"....." \
/reference:"ReachFramework.dll" \
/reference:"WindowsBase.dll" \
/reference:"PresentationCore.dll" \
/reference:"PresentationFramework.dll" \
xps_to_png.cs
*/
// logic inspired by this example: https://goo.gl/nCxrjQ
class Program {
static void convert(string path, string out_path) {
System.Windows.Xps.Packaging.XpsDocument xpsDoc =
new System.Windows.Xps.Packaging.XpsDocument(path, System.IO.FileAccess.Read);
if (xpsDoc == null) {
throw new System.Exception("XpsDocumentfailed");
}
System.Windows.Documents.FixedDocumentSequence docSeq = xpsDoc.GetFixedDocumentSequence();
if (docSeq == null) {
throw new System.Exception("GetFixedDocumentSequence failed");
}
System.Windows.Documents.DocumentReferenceCollection drc = docSeq.References;
int index = 0;
foreach (System.Windows.Documents.DocumentReference dr in drc) {
System.Windows.Documents.FixedDocument dp = dr.GetDocument(false);
foreach (System.Windows.Documents.PageContent pc in dp.Pages) {
System.Windows.Documents.FixedPage fixedPage = pc.GetPageRoot(false);
double width = fixedPage.Width;
double height = fixedPage.Height;
System.Windows.Size sz = new System.Windows.Size(width, height);
fixedPage.Measure(sz);
fixedPage.Arrange(new System.Windows.Rect(new System.Windows.Point(), sz));
fixedPage.UpdateLayout();
System.Windows.Media.Imaging.BitmapImage bitmap = new System.Windows.Media.Imaging.BitmapImage();
System.Windows.Media.Imaging.RenderTargetBitmap renderTarget =
new System.Windows.Media.Imaging.RenderTargetBitmap((int)width, (int)height, 96, 96,
System.Windows.Media.PixelFormats.Default);
renderTarget.Render(fixedPage);
System.Windows.Media.Imaging.BitmapEncoder encoder = new System.Windows.Media.Imaging.PngBitmapEncoder();
encoder.Frames.Add(System.Windows.Media.Imaging.BitmapFrame.Create(renderTarget));
System.IO.FileStream pageOutStream = new System.IO.FileStream(
string.Format("{0}_{1}.png", out_path, index),
System.IO.FileMode.Create, System.IO.FileAccess.Write);
encoder.Save(pageOutStream);
pageOutStream.Close();
++index;
}
}
}
// Executes convert, catching thrown exceptions, and printing them to stdout, and exiting immediately
static void try_convert(string path, string out_path) {
try {
convert(path, out_path);
} catch (System.Exception e) {
System.Console.WriteLine(e);
System.Environment.Exit(1);
}
}
// For each command line argument, convert xps to sequence of pngs
static void Main(string[] args) {
foreach (string arg in args) {
System.Threading.Thread t = new System.Threading.Thread(() => try_convert(arg, arg));
t.SetApartmentState(System.Threading.ApartmentState.STA);
t.Start();
}
}
}
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