Offset curve: add empty field values to newly created features

Author: mhugent

src/app/qgsmaptooloffsetcurve.cpp

@@ -101,6 +101,16 @@ void QgsMapToolOffsetCurve::canvasReleaseEvent( QMouseEvent * e )
   {
     QgsFeature f;
     f.setGeometry( mModifiedGeometry );
+
+    //add empty values for all fields (allows to insert attribute values via the feature form in the same session)
+    QgsAttributeMap attMap;
+    const QgsFieldMap& fields = vlayer->pendingFields();
+    QgsFieldMap::const_iterator fieldIt = fields.constBegin();
+    for ( ; fieldIt != fields.constEnd(); ++fieldIt )
+    {
+      attMap.insert( fieldIt.key(), QVariant() );
+    }
+    f.setAttributeMap( attMap );
     editOk = vlayer->addFeature( f );
   }