Bug report #8473: Cannot rename layers in composer legend - QGIS Application - QGIS Issue Tracking

Bug report #8473

Cannot rename layers in composer legend

Added by Giovanni Manghi over 10 years ago. Updated over 10 years ago.

Status:	Closed
Priority:	Severe/Regression
Assignee:	Marco Hugentobler
Category:	Map Composer/Printing
Affected QGIS version:	master	Regression?:	No
Operating System:		Easy fix?:	No
Pull Request or Patch supplied:	Yes	Resolution:
Crashes QGIS or corrupts data:	No	Copied to github as #:	17241

Description

It seems a regression: in the print composer legend the name of rasters/wms layers cannot be changed. The dialog shows, it allows enter a new name but the operation has no effect. Works ok on 1.8.

12.png (234 KB) Giovanni Manghi, 2013-08-15 07:20 PM

22.png (235 KB) Giovanni Manghi, 2013-08-15 07:20 PM

11.png (176 KB) Giovanni Manghi, 2013-08-15 07:20 PM

History

#1 Updated by Giovanni Manghi over 10 years ago

File 12.png added
File 22.png added
File 11.png added

I see another issue, this time only on Linux. See Attached screenshots.

On Windows if in the composer legend there is vector with "single symbol" symbology, then the (one) symbology class has no text associated, but this can be edited.

On Linux in the same situation, the (one) symbology class is given the layer name by default, and this cannot be edited.

#2 Updated by Salvatore Larosa over 10 years ago

I am not fairly sure but this patch has worked for me (please anyone who knows better the composer code might reviews it ?):

diff --git a/src/app/composer/qgscomposerlegendwidget.cpp b/src/app/composer/qgscomposerlegendwidget.cpp
index 613d394..5032ab7 100644
--- a/src/app/composer/qgscomposerlegendwidget.cpp
+++ b/src/app/composer/qgscomposerlegendwidget.cpp
@@ -740,8 +740,8 @@ void QgsComposerLegendWidget::on_mEditPushButton_clicked()
   QgsComposerLegendItemDialog itemDialog( currentItem );
   if ( itemDialog.exec() == QDialog::Accepted )
   {
-    currentItem->setUserText( itemDialog.itemText() );
-    mLegend->model()->updateItemText( currentItem );
+    currentItem->setText( itemDialog.itemText() );
+    //mLegend->model()->updateItemText( currentItem );
   }

   mLegend->beginCommand( tr( "Legend item edited" ) );

#3 Updated by Giovanni Manghi over 10 years ago

Pull Request or Patch supplied changed from No to Yes

#4 Updated by Anita Graser over 10 years ago

Subject changed from Cannot rename raster layers in composer legend to Cannot rename (raster) layers in composer legend

For me, this issue is not limited to raster layers. (Using today's OSGeo4W nightly - code rev 4408a8b.)

In a project with only one polygon layer, I can only rename the upper level item in the print composer legend - but not the sub-level item.

#5 Updated by Giovanni Manghi over 10 years ago

Subject changed from Cannot rename (raster) layers in composer legend to Cannot rename layers in composer legend

#6 Updated by René-Luc ReLuc over 10 years ago

Assignee set to René-Luc ReLuc

Thanks Salvatore for your patch, but it changes the way to manage text for all the layers and not only for raster layers.

I proposed this patch :

index 29b86f5..d958676 100644
--- a/src/core/composer/qgslegendmodel.cpp
+++ b/src/core/composer/qgslegendmodel.cpp
@@ -380,10 +380,9 @@ void QgsLegendModel::updateLayer( QStandardItem* layerItem )
     QgsMapLayer* mapLayer = QgsMapLayerRegistry::instance()->mapLayer( lItem->layerID() );
     if ( mapLayer )
     {
-      QgsVectorLayer* vLayer = qobject_cast<QgsVectorLayer*>( mapLayer );
-
       updateLayerItemText( lItem );

+      QgsVectorLayer* vLayer = qobject_cast<QgsVectorLayer*>( mapLayer );
       if ( vLayer )
       {
         addVectorLayerItemsV2( lItem, vLayer );
@@ -406,11 +405,9 @@ void QgsLegendModel::updateLayerItemText( QStandardItem* layerItem )
   QgsMapLayer* mapLayer = QgsMapLayerRegistry::instance()->mapLayer( lItem->layerID() );
   if ( !mapLayer ) return;

-  QgsVectorLayer* vLayer = qobject_cast<QgsVectorLayer*>( mapLayer );
-  if ( !vLayer ) return;
-
   QString label = lItem->userText().isEmpty() ? mapLayer->name() : lItem->userText();

+  QgsVectorLayer* vLayer = qobject_cast<QgsVectorLayer*>( mapLayer );
   if ( vLayer && lItem->showFeatureCount() )
   {
     label += QString( " [%1]" ).arg( vLayer->featureCount() );