constness for document()

svn path=/trunk/playground/graphics/okular/; revision=643431

core/generator.cpp

@@ -284,7 +284,7 @@ void Generator::signalPixmapRequestDone( PixmapRequest * request )
         Q_ASSERT( !"No document set for generator in signalPixmapRequestDone!" );
 }
 
-Document * Generator::document() const
+const Document * Generator::document() const
 {
     return d->m_document;
 }

core/generator.h

@@ -390,7 +390,7 @@ class OKULAR_EXPORT Generator : public QObject
         /**
          * Returns a pointer to the document.
          */
-        Document * document() const;
+        const Document * document() const;
 
         /**
          * Toggle the @p feature .