Fix for ticket #101.

A temporary fix that prevents a qgis crash due to running out of memory.


git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@5375 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: g_j_m

src/composer/qgscomposition.cpp

@@ -568,7 +568,20 @@ void QgsComposition::paperSizeChanged ( void )
     setOptions();
   }
 
-  recalculate();
+  try
+  {
+    recalculate();
+  }
+  catch (std::bad_alloc& ba)
+  {
+    // A better solution here would be to set the canvas back to the
+    // original size and carry on, but for the moment this will
+    // prevent a crash due to an uncaught exception.
+    QMessageBox::critical( 0, tr("Out of memory"),
+                           tr("Qgis is unable to resize the paper size due to "
+                              "insufficient memory.\n It is best that you avoid "
+                              "using the map composer until you restart qgis.\n") );
+  }
 
   mView->repaintContents();
   writeSettings();