Option for raster icon in legend

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@13904 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: mhugent

src/app/legend/qgslegendlayer.cpp

@@ -365,13 +365,18 @@ QPixmap QgsLegendLayer::getOriginalPixmap()
     }
     else if ( theLayer->type() == QgsMapLayer::RasterLayer )
     {
-#if 0 //MH100708: disabled for 1.5 release because of performance problems
-      QgsRasterLayer* rlayer = qobject_cast<QgsRasterLayer *>( theLayer );
-      QPixmap myPixmap( 32, 32 );
-      rlayer->thumbnailAsPixmap( &myPixmap );
-      return myPixmap;
-#endif //0
-      return QPixmap();
+      QSettings s;
+      if( s.value( "/qgis/createRasterLegendIcons", true ).toBool() )
+      {
+        QgsRasterLayer* rlayer = qobject_cast<QgsRasterLayer *>( theLayer );
+        QPixmap myPixmap( 32, 32 );
+        rlayer->thumbnailAsPixmap( &myPixmap );
+        return myPixmap;
+      }
+      else
+      {
+        return QPixmap();
+      }
     }
   }
 

src/app/qgsoptions.cpp

@@ -235,6 +235,7 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WFlags fl ) :
   cbxIdentifyResultsDocked->setChecked( settings.value( "/qgis/dockIdentifyResults", false ).toBool() );
   cbxAddPostgisDC->setChecked( settings.value( "/qgis/addPostgisDC", false ).toBool() );
   cbxAddNewLayersToCurrentGroup->setChecked( settings.value( "/qgis/addNewLayersToCurrentGroup", false ).toBool() );
+  cbxCreateRasterLegendIcons->setChecked( settings.value( "/qgis/createRasterLegendIcons", true ).toBool() );
 
   //set the color for selections
   int myRed = settings.value( "/qgis/default_selection_color_red", 255 ).toInt();
@@ -489,6 +490,7 @@ void QgsOptions::saveOptions()
   settings.setValue( "/qgis/dockIdentifyResults", cbxIdentifyResultsDocked->isChecked() );
   settings.setValue( "/qgis/addPostgisDC", cbxAddPostgisDC->isChecked() );
   settings.setValue( "/qgis/addNewLayersToCurrentGroup", cbxAddNewLayersToCurrentGroup->isChecked() );
+  settings.setValue( "/qgis/createRasterLegendIcons", cbxCreateRasterLegendIcons->isChecked() );
   settings.setValue( "/qgis/new_layers_visible", chkAddedVisibility->isChecked() );
   settings.setValue( "/qgis/enable_anti_aliasing", chkAntiAliasing->isChecked() );
   settings.setValue( "/qgis/enable_render_caching", chkUseRenderCaching->isChecked() );

src/ui/qgsoptionsbase.ui

@@ -379,6 +379,13 @@
             </property>
            </widget>
           </item>
+          <item>
+           <widget class="QCheckBox" name="cbxCreateRasterLegendIcons">
+            <property name="text">
+             <string>Create raster icons in legend</string>
+            </property>
+           </widget>
+          </item>
           <item>
            <widget class="QCheckBox" name="cbxHideSplash">
             <property name="text">