Fix for ticket #291 (same as image not giving the choice of image

 formats). The problem seems to with the list of formats that qt is
 supposed to provide, but doesn't. Hard-wired to provide jpg and png
 for the moment.


git-svn-id: http://svn.osgeo.org/qgis/trunk@5868 c8812cc2-4d05-0410-92ff-de0c093fc19c

src/gui/qgisapp.cpp

@@ -2996,9 +2996,18 @@ void QgisApp::saveMapAsImage()
   // get a list of supported output image types
   int myCounterInt=0;
   QString myFilters;
-  for ( ; myCounterInt < QPictureIO::outputFormats().count(); myCounterInt++ )
+  QList<QByteArray> formats = QPictureIO::outputFormats();
+  // Workaround for a problem with Qt4 - calls to outputFormats tend
+  // to return nothing :(
+  if (formats.count() == 0)
   {
-    QString myFormat=QString(QPictureIO::outputFormats().at( myCounterInt ));
+    formats.append("png");
+    formats.append("jpg");
+  }
+
+  for ( ; myCounterInt < formats.count(); myCounterInt++ )
+  {
+    QString myFormat=QString(formats.at( myCounterInt ));
     QString myFilter = createFileFilter_(myFormat + " format", "*."+myFormat);
     myFilters += myFilter;
     myFilterMap[myFilter] = myFormat;
@@ -3046,6 +3055,12 @@ void QgisApp::saveMapAsImage()
   std::cout << "Image type to be passed to mapcanvas: " << (myFilterMap[myFilterString]).toLocal8Bit().data() << std::endl;
 #endif
 
+  // Add the file type suffix to the filename if required
+  if (!myOutputFileNameQString.endsWith(myFilterMap[myFilterString]))
+  {
+    myOutputFileNameQString += "." + myFilterMap[myFilterString];
+  }
+
   myQSettings.writeEntry("/UI/lastSaveAsImageFilter" , myFilterString);
   myQSettings.writeEntry("/UI/lastSaveAsImageDir", myQFileDialog->directory().absolutePath());