QGIS » QGIS Application

      // Originally just returned false, meaning layer fails to load. This is

      // very confusing for users if symbology fails to load - bad layer handler assumes 

      // that this must be due to missing file, so keeps prompting for filename.

      //

      // Would be better to provide user with information from errorMsg about why this

      // has failed - but in the meantime this is a start.

      // Set a default renderer if symbology fails to load (eg missing renderer plugin)

      if ( mUsingRendererV2 )

      {

        setRendererV2( QgsFeatureRendererV2::defaultRenderer( geometryType() ) );

      }

      else

      {

        QgsSingleSymbolRenderer *renderer = new QgsSingleSymbolRenderer( geometryType() );

        setRenderer( renderer );

      }