diff libgui/src/variable-editor.cc @ 31619:ad014fc78bd6

use individual local gui_settings objects Previously, we created a single gui_settings object (derived from QSettings) and accessed it from the resource_manager object. That design is not necessary and is not the way QSettings was designed to be used. Instead of managing a single object, we should be using individual QSettings objects where needed. Each individual QSettings object manages thread-safe access to a single global collection of settings. The Qt docs say that operations on QSettings are not thread safe, but that means that you can't create a QSettings object in one thread and use it in another without some locking. I'm not sure whether we were doing that correctly, but with this change it no longer matters. Each QSettings object does perform locking when reading or writing the underlying global data. * resource-manager.h, resource-manager.cc (resource_manager::m_settings): Delete data member. (resource_manager::get_settings): Delete. * annotation-dialog.cc, QTerminal.cc, QTerminal.h, command-widget.cc, command-widget.h, community-news.cc, dialog.cc, documentation-bookmarks.cc, documentation-bookmarks.h, documentation-dock-widget.cc, documentation-dock-widget.h, documentation.cc, documentation.h, dw-main-window.cc, dw-main-window.h, external-editor-interface.cc, files-dock-widget.cc, files-dock-widget.h, find-files-dialog.cc, history-dock-widget.cc, history-dock-widget.h, file-editor-interface.h, file-editor-tab.cc, file-editor-tab.h, file-editor.cc, file-editor.h, find-dialog.cc, octave-qscintilla.cc, main-window.cc, main-window.h, news-reader.cc, octave-dock-widget.cc, octave-dock-widget.h, qt-interpreter-events.cc, qt-interpreter-events.h, release-notes.cc, resource-manager.cc, resource-manager.h, set-path-dialog.cc, settings-dialog.cc, settings-dialog.h, shortcut-manager.cc, shortcut-manager.h, terminal-dock-widget.cc, terminal-dock-widget.h, variable-editor.cc, variable-editor.h, welcome-wizard.cc, workspace-model.cc, workspace-model.h, workspace-view.cc: Use local gui_settings objects instead of accessing a pointer to a single gui_settings object owned by the resource_manager object.
author John W. Eaton <jwe@octave.org>
date Fri, 02 Dec 2022 14:23:53 -0500
parents 9f4a9dd4a6ee
children 0645ea65ca6b
line wrap: on
line diff
--- a/libgui/src/variable-editor.cc	Fri Dec 02 15:51:44 2022 -0500
+++ b/libgui/src/variable-editor.cc	Fri Dec 02 14:23:53 2022 -0500
@@ -55,6 +55,7 @@
 #include "gui-preferences-global.h"
 #include "gui-preferences-sc.h"
 #include "gui-preferences-ve.h"
+#include "gui-settings.h"
 #include "octave-qobject.h"
 #include "octave-qtutils.h"
 #include "ovl.h"
@@ -493,9 +494,10 @@
 
     // FIXME: Remove, if for all common KDE versions (bug #54607) is resolved.
     int opts = 0;  // No options by default.
-    resource_manager& rmgr = m_octave_qobj.get_resource_manager ();
-    gui_settings *settings = rmgr.get_settings ();
-    if (! settings->value (global_use_native_dialogs).toBool ())
+
+    gui_settings settings;
+
+    if (! settings.value (global_use_native_dialogs).toBool ())
       opts = QFileDialog::DontUseNativeDialog;
 
     QString name = objectName ();
@@ -1203,13 +1205,8 @@
   void
   variable_editor::edit_variable (const QString& name, const octave_value& val)
   {
-    resource_manager& rmgr = m_octave_qobj.get_resource_manager ();
-
     if (m_stylesheet.isEmpty ())
-      {
-        gui_settings *settings = rmgr.get_settings ();
-        notice_settings (settings);
-      }
+      notice_settings ();
 
     QDockWidget *existing_qdw = m_main->findChild<QDockWidget *> (name);
     if (existing_qdw)
@@ -1417,31 +1414,33 @@
   }
 
   void
-  variable_editor::notice_settings (const gui_settings *settings)
+  variable_editor::notice_settings (void)
   {
-    m_main->notice_settings (settings); // update settings in parent main win
+    gui_settings settings;
 
-    m_default_width = settings->value (ve_column_width).toInt ();
+    m_main->notice_settings (); // update settings in parent main win
 
-    m_default_height = settings->value (ve_row_height).toInt ();
+    m_default_width = settings.value (ve_column_width).toInt ();
+
+    m_default_height = settings.value (ve_row_height).toInt ();
 
-    m_alternate_rows = settings->value (ve_alternate_rows).toBool ();
+    m_alternate_rows = settings.value (ve_alternate_rows).toBool ();
 
-    m_use_terminal_font = settings->value (ve_use_terminal_font).toBool ();
+    m_use_terminal_font = settings.value (ve_use_terminal_font).toBool ();
 
     QString font_name;
     int font_size;
-    QString default_font = settings->value (global_mono_font).toString ();
+    QString default_font = settings.value (global_mono_font).toString ();
 
     if (m_use_terminal_font)
       {
-        font_name = settings->value (cs_font.key, default_font).toString ();
-        font_size = settings->value (cs_font_size).toInt ();
+        font_name = settings.value (cs_font.key, default_font).toString ();
+        font_size = settings.value (cs_font_size).toInt ();
       }
     else
       {
-        font_name = settings->value (ve_font_name.key, default_font).toString ();
-        font_size = settings->value (ve_font_size).toInt ();
+        font_name = settings.value (ve_font_name.key, default_font).toString ();
+        font_size = settings.value (ve_font_size).toInt ();
       }
 
     m_font = QFont (font_name, font_size);
@@ -1450,11 +1449,11 @@
 
     m_add_font_height = fm.height ();
 
-    int mode = settings->value (ve_color_mode).toInt ();
+    int mode = settings.value (ve_color_mode).toInt ();
 
     for (int i = 0; i < ve_colors_count; i++)
       {
-        QColor setting_color = settings->color_value (ve_colors[i], mode);
+        QColor setting_color = settings.color_value (ve_colors[i], mode);
         m_table_colors.replace (i, setting_color);
       }
 
@@ -1464,7 +1463,7 @@
 
     if (m_tool_bar)
       {
-        int size_idx = settings->value (global_icon_size).toInt ();
+        int size_idx = settings.value (global_icon_size).toInt ();
         size_idx = (size_idx > 0) - (size_idx < 0) + 1;  // Make valid index from 0 to 2
 
         QStyle *st = style ();