No need to use m_zoomFactor when generating thumbnails

svn path=/trunk/kdegraphics/kpdf/; revision=343577

kpdf/kpdf_part.cpp

@@ -411,15 +411,13 @@ void Part::nextThumbnail()
   // does not exist
   if (m_nextThumbnail > m_doc->getNumPages()) return;
   // Pixels per point when the zoomFactor is 1.
-  const double basePpp  = QPaintDevice::x11AppDpiX() / 72.0;
-  const double ppp = basePpp * m_zoomFactor; // pixels per point
-
+  
   SplashColor paperColor;
   paperColor.rgb8 = splashMakeRGB8(0xff, 0xff, 0xff);
   QOutputDevPixmap odev(paperColor);
   odev.startDoc(m_doc->getXRef());
 
-  m_doc->displayPage(&odev, m_nextThumbnail, ppp * 72.0, ppp * 72.0, 0, true, true);
+  m_doc->displayPage(&odev, m_nextThumbnail, QPaintDevice::x11AppDpiX(), QPaintDevice::x11AppDpiX(), 0, true, true);
   pdfpartview->setThumbnail(m_nextThumbnail, odev.getPixmap());
 
   m_nextThumbnail++;