Store away the digital signature origin.

This prevents a warning on loading files containing
signatures, and is also a start towards proper handling
of digital signatures.

svn path=/trunk/playground/graphics/okular/; revision=634423

generators/xps/generator_xps.cpp

@@ -925,6 +925,8 @@ bool XpsFile::loadDocument(const QString &filename)
                 fixedRepresentationFileName = e.attribute("Target");
             } else if ("http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties" == e.attribute("Type") ) {
                 m_corePropertiesFileName = e.attribute("Target");
+            } else if ("http://schemas.openxmlformats.org/package/2006/relationships/digital-signature/origin" == e.attribute("Type") ) {
+                m_signatureOrigin = e.attribute("Target");
             } else {
                 kDebug() << "Unknown relationships element: " << e.attribute("Type") << " : " << e.attribute("Target") << endl;
             }

generators/xps/generator_xps.h

@@ -191,7 +191,6 @@ private:
     QImage *m_pageImage;
     bool m_pageIsRendered;
 
-    
     friend class XpsHandler;
     friend class XpsTextExtractionHandler;
 };
@@ -292,6 +291,8 @@ private:
     QString m_corePropertiesFileName;
     Okular::DocumentInfo * m_docInfo;
 
+    QString m_signatureOrigin;    
+
     KZip * m_xpsArchive;
 
     QMap<QString, int> m_fontCache;