return the document title as metadata, if the document has any

svn path=/trunk/KDE/kdegraphics/okular/; revision=787332

generators/spectre/generator_ghostview.cpp

@@ -275,5 +275,16 @@ Okular::Rotation GSGenerator::orientation(SpectreOrientation pageOrientation) co
     return Okular::Rotation0;
 }
 
+QVariant GSGenerator::metaData(const QString &key, const QVariant &option) const
+{
+    Q_UNUSED(option)
+    if (key == "DocumentTitle")
+    {
+        const char *title = spectre_document_get_title(m_internalDocument);
+        if (title)
+            return QString::fromAscii(title);
+    }
+    return QVariant();
+}
 
 #include "generator_ghostview.moc"

generators/spectre/generator_ghostview.h

@@ -36,6 +36,8 @@ class GSGenerator : public Okular::Generator, public Okular::ConfigInterface, pu
         bool canGeneratePixmap() const;
         void generatePixmap( Okular::PixmapRequest * request );
 
+        QVariant metaData(const QString &key, const QVariant &option) const;
+
         // print document using already configured kprinter
         bool print( QPrinter& /*printer*/ );
         QString fileName() const;