Hide auxiliary columns which can be edited by "change label properties" map tool

python/core/qgsauxiliarystorage.sip

@@ -179,6 +179,15 @@ class QgsAuxiliaryLayer : QgsVectorLayer
  :rtype: bool
 %End
 
+    bool isHiddenProperty( int index ) const;
+%Docstring
+ Returns true if the underlying field have to be hidden from editing
+ tools like attribute table, false otherwise.
+
+ \param index The index of the field for which visibility is checked
+ :rtype: bool
+%End
+
     static int createProperty( QgsPalLayerSettings::Property property, const QString &providerId, QgsVectorLayer *vlayer );
 %Docstring
  Create if necessary a new auxiliary field for a PAL property and

python/core/qgsvectorlayer.sip

@@ -1125,7 +1125,7 @@ Returns true if the provider has been modified since the last commit
  :rtype: bool
 %End
 
-    bool isAuxiliaryField( int index ) const;
+    bool isAuxiliaryField( int index, int &srcIndex ) const;
 %Docstring
  Returns true if the field comes from the auxiliary layer,
  false otherwise.

src/core/qgsauxiliarystorage.cpp

@@ -30,6 +30,31 @@ const QString AS_JOINFIELD = "ASPK";
 const QString AS_EXTENSION = "qgd";
 const QString AS_JOINPREFIX = "auxiliary_storage_";
 
+const QVector<QgsPalLayerSettings::Property> palHiddenProperties
+{
+  QgsPalLayerSettings::PositionX,
+  QgsPalLayerSettings::PositionY,
+  QgsPalLayerSettings::Show,
+  QgsPalLayerSettings::LabelRotation,
+  QgsPalLayerSettings::Family,
+  QgsPalLayerSettings::FontStyle,
+  QgsPalLayerSettings::Size,
+  QgsPalLayerSettings::Bold,
+  QgsPalLayerSettings::Italic,
+  QgsPalLayerSettings::Underline,
+  QgsPalLayerSettings::Color,
+  QgsPalLayerSettings::Strikeout,
+  QgsPalLayerSettings::BufferSize,
+  QgsPalLayerSettings::BufferColor,
+  QgsPalLayerSettings::LabelDistance,
+  QgsPalLayerSettings::Hali,
+  QgsPalLayerSettings::Vali,
+  QgsPalLayerSettings::ScaleVisibility,
+  QgsPalLayerSettings::MinScale,
+  QgsPalLayerSettings::MaxScale,
+  QgsPalLayerSettings::AlwaysShow
+};
+
 QgsAuxiliaryField::QgsAuxiliaryField( const QgsPropertyDefinition &def )
   : QgsField()
   , mPropertyDefinition( def )
@@ -310,6 +335,29 @@ int QgsAuxiliaryLayer::createProperty( QgsDiagramLayerSettings::Property propert
   return index;
 }
 
+bool QgsAuxiliaryLayer::isHiddenProperty( int index ) const
+{
+  bool hidden = false;
+
+  QgsAuxiliaryField aField( fields().field( index ) );
+  QgsPropertyDefinition def = aField.propertyDefinition();
+
+  if ( def.origin().compare( "labeling" ) == 0 )
+  {
+    Q_FOREACH ( const QgsPalLayerSettings::Property &p, palHiddenProperties )
+    {
+      const QString propName = QgsPalLayerSettings::propertyDefinitions()[ p ].name();
+      if ( propName.compare( def.name() ) == 0 )
+      {
+        hidden = true;
+        break;
+      }
+    }
+  }
+
+  return hidden;
+}
+
 //
 // QgsAuxiliaryStorage
 //

src/core/qgsauxiliarystorage.h

@@ -199,6 +199,14 @@ class CORE_EXPORT QgsAuxiliaryLayer : public QgsVectorLayer
      */
     virtual bool deleteAttribute( int attr ) override;
 
+    /**
+     * Returns true if the underlying field have to be hidden from editing
+     * tools like attribute table, false otherwise.
+     *
+     * \param index The index of the field for which visibility is checked
+     */
+    bool isHiddenProperty( int index ) const;
+
     /**
      * Create if necessary a new auxiliary field for a PAL property and
      * activate this property in settings.

src/core/qgsvectorlayer.cpp

@@ -2834,17 +2834,17 @@ bool QgsVectorLayer::isModified() const
 }
 
 
-bool QgsVectorLayer::isAuxiliaryField( int index ) const
+bool QgsVectorLayer::isAuxiliaryField( int index, int &srcIndex ) const
 {
   bool auxiliaryField = false;
+  srcIndex = -1;
 
   if ( !auxiliaryLayer() )
     return auxiliaryField;
 
   if ( index >= 0 && fields().fieldOrigin( index ) == QgsFields::OriginJoin )
   {
-    int srcFieldIndex;
-    const QgsVectorLayerJoinInfo *info = mJoinBuffer->joinForFieldIndex( index, fields(), srcFieldIndex );
+    const QgsVectorLayerJoinInfo *info = mJoinBuffer->joinForFieldIndex( index, fields(), srcIndex );
 
     if ( info && info->joinLayerId() == auxiliaryLayer()->id() )
       auxiliaryField = true;
@@ -3073,6 +3073,31 @@ void QgsVectorLayer::updateFields()
     mFields[index].setEditorWidgetSetup( fieldWidgetIterator.value() );
   }
 
+  // update attribute table config
+  mAttributeTableConfig.update( fields() );
+
+  if ( auxiliaryLayer() )
+  {
+    QVector<QgsAttributeTableConfig::ColumnConfig> columns = mAttributeTableConfig.columns();
+
+    QVector<QgsAttributeTableConfig::ColumnConfig>::iterator it;
+    for ( it = columns.begin(); it != columns.end(); ++it )
+    {
+      int idx = fields().lookupField( it->name );
+      if ( idx >= 0 )
+      {
+        int srcIdx = -1;
+        if ( !isAuxiliaryField( idx, srcIdx ) )
+          continue;
+
+        if ( auxiliaryLayer()->isHiddenProperty( srcIdx ) )
+          it->hidden = true;
+      }
+    }
+
+    mAttributeTableConfig.setColumns( columns );
+  }
+
   if ( oldFields != mFields )
   {
     emit updatedFields();

src/core/qgsvectorlayer.h

@@ -1166,7 +1166,7 @@ class CORE_EXPORT QgsVectorLayer : public QgsMapLayer, public QgsExpressionConte
      *
      * \since QGIS 3.0
      */
-    bool isAuxiliaryField( int index ) const;
+    bool isAuxiliaryField( int index, int &srcIndex ) const;
 
     //! Synchronises with changes in the datasource
     virtual void reload() override;