Behave better when zooming to selection when the selection is a singl…

…e point

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@5538 c8812cc2-4d05-0410-92ff-de0c093fc19c

src/gui/qgsvectorlayer.cpp

@@ -1381,7 +1381,7 @@ QgsRect QgsVectorLayer::bBoxOfSelected()
     }
     else
     {
-      const double padFactor = 0.05;
+      const double padFactor = 1e-8;
       double widthPad = retval.xMin() * padFactor;
       double heightPad = retval.yMin() * padFactor;
       double xmin = retval.xMin() - widthPad;