[relation widgets] General update

 * Improve speed (lazy loading)
 * Loop detection for circular dependencies (Fix #10850)
 * Some memory leaks fixed
 * More const-correctness
 * Fix the attribute editor context

Author: m-kuhn

python/gui/qgsattributeeditorcontext.sip

@@ -24,5 +24,5 @@ class QgsAttributeEditorContext
      *
      * @param layer The layer to adjust for.
      */
-    void adjustForLayer( QgsVectorLayer* layer );
+    // void adjustForLayer( QgsVectorLayer* layer );
 };

python/gui/qgsvectorlayertools.sip

@@ -13,7 +13,7 @@ class QgsVectorLayerTools
      * @param defaultGeometry A default geometry to add to the feature
      * @return                True in case of success, False if the operation failed/was aborted
      */
-    virtual bool addFeature( QgsVectorLayer* layer, QgsAttributeMap defaultValues = QgsAttributeMap(), const QgsGeometry& defaultGeometry = QgsGeometry() ) = 0;
+    virtual bool addFeature( QgsVectorLayer* layer, QgsAttributeMap defaultValues = QgsAttributeMap(), const QgsGeometry& defaultGeometry = QgsGeometry() ) const = 0;
 
 
     /**
@@ -25,7 +25,7 @@ class QgsVectorLayerTools
      *
      * @return       True, if the editing session was started
      */
-    virtual bool startEditing( QgsVectorLayer* layer ) = 0;
+    virtual bool startEditing( QgsVectorLayer* layer ) const = 0;
 
     /**
      * Will be called, when an editing session is ended and the features should be commited.
@@ -35,6 +35,6 @@ class QgsVectorLayerTools
      * @param allowCancel True if a cancel button should be offered
      * @return            True if successful
      */
-    virtual bool stopEditing( QgsVectorLayer* layer, bool allowCancel = true ) = 0;
+    virtual bool stopEditing( QgsVectorLayer* layer, bool allowCancel = true ) const = 0;
 
 };

src/app/qgisapp.cpp

@@ -666,8 +666,6 @@ QgisApp::QgisApp( QSplashScreen *splash, bool restorePlugins, QWidget * parent,
 
   // Init the editor widget types
   QgsEditorWidgetRegistry* editorWidgetRegistry = QgsEditorWidgetRegistry::instance();
-  QgsAttributeEditorContext context;
-  context.setVectorLayerTools( vectorLayerTools() );
   editorWidgetRegistry->registerWidget( "Classification", new QgsClassificationWidgetWrapperFactory( tr( "Classification" ) ) );
   editorWidgetRegistry->registerWidget( "Range", new QgsRangeWidgetFactory( tr( "Range" ) ) );
   editorWidgetRegistry->registerWidget( "UniqueValues", new QgsUniqueValueWidgetFactory( tr( "Unique Values" ) ) );
@@ -682,7 +680,7 @@ QgisApp::QgisApp( QSplashScreen *splash, bool restorePlugins, QWidget * parent,
   editorWidgetRegistry->registerWidget( "Photo", new QgsPhotoWidgetFactory( tr( "Photo" ) ) );
   editorWidgetRegistry->registerWidget( "WebView", new QgsWebViewWidgetFactory( tr( "Web View" ) ) );
   editorWidgetRegistry->registerWidget( "Color", new QgsColorWidgetFactory( tr( "Color" ) ) );
-  editorWidgetRegistry->registerWidget( "RelationReference", new QgsRelationReferenceFactory( tr( "Relation Reference" ), context, mMapCanvas, mInfoBar ) );
+  editorWidgetRegistry->registerWidget( "RelationReference", new QgsRelationReferenceFactory( tr( "Relation Reference" ), mMapCanvas, mInfoBar ) );
   editorWidgetRegistry->registerWidget( "DateTime", new QgsDateTimeEditFactory( tr( "Date/Time" ) ) );
 
   mInternalClipboard = new QgsClipboard; // create clipboard
@@ -935,6 +933,8 @@ QgisApp::~QgisApp()
 
   delete mComposerManager;
 
+  delete mVectorLayerTools;
+
   deletePrintComposers();
   removeAnnotationItems();
 

src/app/qgisappinterface.cpp

@@ -629,7 +629,10 @@ QgsAttributeDialog* QgisAppInterface::getFeatureForm( QgsVectorLayer *l, QgsFeat
   myDa.setEllipsoidalMode( QgisApp::instance()->mapCanvas()->mapSettings().hasCrsTransformEnabled() );
   myDa.setEllipsoid( QgsProject::instance()->readEntry( "Measure", "/Ellipsoid", GEO_NONE ) );
 
-  QgsAttributeDialog *dialog = new QgsAttributeDialog( l, &feature, false, NULL, true );
+  QgsAttributeEditorContext context;
+  context.setDistanceArea( myDa );
+  context.setVectorLayerTools( qgis->vectorLayerTools() );
+  QgsAttributeDialog *dialog = new QgsAttributeDialog( l, &feature, false, NULL, true, context );
   return dialog;
 }
 

src/app/qgsguivectorlayertools.cpp

@@ -32,15 +32,15 @@ QgsGuiVectorLayerTools::QgsGuiVectorLayerTools()
     : QObject( NULL )
 {}
 
-bool QgsGuiVectorLayerTools::addFeature( QgsVectorLayer* layer, QgsAttributeMap defaultValues, const QgsGeometry& defaultGeometry )
+bool QgsGuiVectorLayerTools::addFeature( QgsVectorLayer* layer, QgsAttributeMap defaultValues, const QgsGeometry& defaultGeometry ) const
 {
   QgsFeature f;
   f.setGeometry( defaultGeometry );
   QgsFeatureAction a( tr( "Add feature" ), f, layer );
   return a.addFeature( defaultValues );
 }
 
-bool QgsGuiVectorLayerTools::startEditing( QgsVectorLayer* layer )
+bool QgsGuiVectorLayerTools::startEditing( QgsVectorLayer* layer ) const
 {
   if ( !layer )
   {
@@ -65,7 +65,7 @@ bool QgsGuiVectorLayerTools::startEditing( QgsVectorLayer* layer )
   return res;
 }
 
-bool QgsGuiVectorLayerTools::stopEditing( QgsVectorLayer* layer, bool allowCancel )
+bool QgsGuiVectorLayerTools::stopEditing( QgsVectorLayer* layer, bool allowCancel ) const
 {
   bool res = true;
 
@@ -127,7 +127,7 @@ bool QgsGuiVectorLayerTools::stopEditing( QgsVectorLayer* layer, bool allowCance
   return res;
 }
 
-void QgsGuiVectorLayerTools::commitError( QgsVectorLayer* vlayer )
+void QgsGuiVectorLayerTools::commitError( QgsVectorLayer* vlayer ) const
 {
   QgsMessageViewer *mv = new QgsMessageViewer();
   mv->setWindowTitle( tr( "Commit errors" ) );

src/app/qgsguivectorlayertools.h

@@ -37,7 +37,7 @@ class QgsGuiVectorLayerTools : public QgsVectorLayerTools, public QObject
      *
      * @return                True in case of success, False if the operation failed/was aborted
      */
-    bool addFeature( QgsVectorLayer *layer, QgsAttributeMap defaultValues, const QgsGeometry &defaultGeometry );
+    bool addFeature( QgsVectorLayer *layer, QgsAttributeMap defaultValues, const QgsGeometry &defaultGeometry ) const;
 
     /**
      * This should be called, whenever a vector layer should be switched to edit mode. If successful
@@ -47,7 +47,7 @@ class QgsGuiVectorLayerTools : public QgsVectorLayerTools, public QObject
      *
      * @return       True, if the editing session was started
      */
-    bool startEditing( QgsVectorLayer* layer );
+    bool startEditing( QgsVectorLayer* layer ) const;
 
     /**
      * Should be called, when an editing session is ended and the features should be commited.
@@ -59,10 +59,10 @@ class QgsGuiVectorLayerTools : public QgsVectorLayerTools, public QObject
      *
      * @return            True if successful
      */
-    bool stopEditing( QgsVectorLayer* layer , bool allowCancel = true );
+    bool stopEditing( QgsVectorLayer* layer , bool allowCancel = true ) const;
 
   private:
-    void commitError( QgsVectorLayer* vlayer );
+    void commitError( QgsVectorLayer* vlayer ) const;
 };
 
 #endif // QGSGUIVECTORLAYERTOOLS_H

src/gui/CMakeLists.txt

@@ -116,7 +116,6 @@ qgisinterface.cpp
 qgsannotationitem.cpp
 qgsattributedialog.cpp
 qgsattributeeditor.cpp
-qgsattributeeditorcontext.cpp
 qgsattributeform.cpp
 qgsattributeforminterface.cpp
 qgsattributeformlegacyinterface.cpp

src/gui/attributetable/qgsfeaturelistview.cpp

@@ -34,9 +34,10 @@
 
 QgsFeatureListView::QgsFeatureListView( QWidget *parent )
     : QListView( parent )
-    , mCurrentEditSelectionModel( NULL )
-    , mFeatureSelectionModel( NULL )
-    , mItemDelegate( NULL )
+    , mModel( 0 )
+    , mCurrentEditSelectionModel( 0 )
+    , mFeatureSelectionModel( 0 )
+    , mItemDelegate( 0 )
     , mEditSelectionDrag( false )
 {
   setSelectionMode( QAbstractItemView::ExtendedSelection );
@@ -100,7 +101,7 @@ QString QgsFeatureListView::parserErrorString()
 QgsFeatureIds QgsFeatureListView::currentEditSelection()
 {
   QgsFeatureIds selection;
-  Q_FOREACH ( QModelIndex idx, mCurrentEditSelectionModel->selectedIndexes() )
+  Q_FOREACH( QModelIndex idx, mCurrentEditSelectionModel->selectedIndexes() )
   {
     selection << idx.data( QgsAttributeTableModel::FeatureIdRole ).value<QgsFeatureId>();
   }
@@ -115,20 +116,27 @@ void QgsFeatureListView::setCurrentFeatureEdited( bool state )
 
 void QgsFeatureListView::mousePressEvent( QMouseEvent *event )
 {
-  QPoint pos = event->pos();
+  if ( mModel )
+  {
+    QPoint pos = event->pos();
 
-  QModelIndex index = indexAt( pos );
+    QModelIndex index = indexAt( pos );
 
-  if ( QgsFeatureListViewDelegate::EditElement == mItemDelegate->positionToElement( event->pos() ) )
-  {
-    mEditSelectionDrag = true;
-    setEditSelection( mModel->mapToMaster( index ), QItemSelectionModel::ClearAndSelect );
+    if ( QgsFeatureListViewDelegate::EditElement == mItemDelegate->positionToElement( event->pos() ) )
+    {
+      mEditSelectionDrag = true;
+      setEditSelection( mModel->mapToMaster( index ), QItemSelectionModel::ClearAndSelect );
+    }
+    else
+    {
+      mFeatureSelectionModel->enableSync( false );
+      selectRow( index, true );
+      repaintRequested();
+    }
   }
   else
   {
-    mFeatureSelectionModel->enableSync( false );
-    selectRow( index, true );
-    repaintRequested();
+    QgsDebugMsg( "No model assigned to this view" );
   }
 }
 

src/gui/editorwidgets/core/qgseditorwidgetwrapper.cpp

@@ -42,9 +42,10 @@ QgsEditorWidgetWrapper* QgsEditorWidgetWrapper::fromWidget( QWidget* widget )
 
 void QgsEditorWidgetWrapper::setEnabled( bool enabled )
 {
-  if ( widget() )
+  QWidget* wdg = widget();
+  if ( wdg )
   {
-    widget()->setEnabled( enabled );
+    wdg->setEnabled( enabled );
   }
 }
 

src/gui/editorwidgets/core/qgswidgetwrapper.cpp

@@ -47,7 +47,7 @@ void QgsWidgetWrapper::setConfig( const QgsEditorWidgetConfig& config )
   mConfig = config;
 }
 
-void QgsWidgetWrapper::setContext( const QgsAttributeEditorContext& context )
+void QgsWidgetWrapper::setContext( const QgsAttributeEditorContext context )
 {
   mContext = context;
 }