eliminate some unnecessary uses of base_qobject * dw-main-window.h, dw-main-window.cc (dw_main_window::m_octave_qobj): Delete unused data member. (dw_main_window::dw_main_window): Eliminate base_qobject argument. Change all uses. * octave-dock-widget.h, octave-dock-widget.cc (octave_label_widget::m_octave_qobj): Delete unused data member. (label_dock_widget::label_dock_widget): Eliminate base_qobject argument. Change all uses. (octave_dock_widget::m_octave_qobj): New data member. (octave_dock_widget::octave_dock_widget): Initialize it here instead of passing base_qobject argument to label_dock_widget base class constructor. * variable-editor.h, variable-editor.cc (variable_dock_widget::variable_dock_widget, variable_editor_stack::variable_editor_stack, variable_editor_view::variable_editor_view): Eliminate base_qobject argument. Change all uses. (variable_editor_stack::m_octave_qobj): Delete unused data member. (variable_editor_view::m_octave_qobj): Delete unused data member. * documentation.h, documentation.cc (documentation::documentation): Eliminate base_qobject argument. Change all uses. (documentation::m_octave_qobj): Delete unused data member.

--- a/libgui/src/variable-editor.h	Sun Dec 25 12:46:53 2022 -0500
+++ b/libgui/src/variable-editor.h	Sun Dec 25 15:19:22 2022 -0500
@@ -57,7 +57,7 @@
 
   public:
 
-    variable_dock_widget (QWidget *p, base_qobject& oct_qobj);
+    variable_dock_widget (QWidget *p);
 
     ~variable_dock_widget (void) = default;
 
@@ -130,7 +130,7 @@
 
   public:
 
-    variable_editor_stack (QWidget *p, base_qobject& oct_qobj);
+    variable_editor_stack (QWidget *p);
 
     ~variable_editor_stack (void) = default;
 
@@ -161,8 +161,6 @@
 
     QTextEdit * make_disp_view (QWidget *parent);
 
-    base_qobject& m_octave_qobj;
-
     variable_editor_view *m_edit_view;
 
     QTextEdit *m_disp_view;
@@ -174,7 +172,7 @@
 
   public:
 
-    variable_editor_view (QWidget *p, base_qobject& oct_qobj);
+    variable_editor_view (QWidget *p);
 
     ~variable_editor_view (void) = default;
 
@@ -220,8 +218,6 @@
 
     void add_edit_actions (QMenu *menu, const QString& qualifier_string);
 
-    base_qobject& m_octave_qobj;
-
     variable_editor_model *m_var_model;
   };