convert and set the links only *once* per page

svn path=/trunk/KDE/kdegraphics/okular/; revision=966553

generators/dvi/generator_dvi.cpp

@@ -94,6 +94,7 @@ bool DviGenerator::doCloseDocument()
     m_dviRenderer = 0;
 
     ready = false;
+    m_linkGenerated.clear();
 
     return true;
 }
@@ -213,7 +214,11 @@ void DviGenerator::generatePixmap( Okular::PixmapRequest *request )
 
             request->page()->setPixmap( request->id(), new QPixmap( QPixmap::fromImage( pageInfo->img ) ) );
 
-            request->page()->setObjectRects( generateDviLinks( pageInfo ) );
+            if ( !m_linkGenerated[ request->pageNumber() ] )
+            {
+                request->page()->setObjectRects( generateDviLinks( pageInfo ) );
+                m_linkGenerated[ request->pageNumber() ] = true;
+            }
         }
     }
 
@@ -353,6 +358,8 @@ void DviGenerator::loadPages( QVector< Okular::Page * > &pagesVector )
     int numofpages = m_dviRenderer->dviFile->total_pages;
     pagesVector.resize( numofpages );
 
+    m_linkGenerated.fill( false, numofpages );
+
     //kDebug(DviDebug) << "resolution:" << m_resolution << ", dviFile->preferred?";
 
     /* get the suggested size */

generators/dvi/generator_dvi.h

@@ -12,6 +12,8 @@
 
 #include <okular/core/generator.h>
 
+#include <qbitarray.h>
+
 class dviRenderer;
 class dviPageInfo;
 class Anchor;
@@ -51,6 +53,7 @@ class DviGenerator : public Okular::Generator
 
         bool ready;
         dviRenderer *m_dviRenderer;
+        QBitArray m_linkGenerated;
 
         void loadPages( QVector< Okular::Page * > & pagesVector );
         Okular::TextPage *extractTextFromPage( dviPageInfo *pageInfo );