Allow to reset dockwidget settings/margins

* changed name to object name
* reset to defaults possible

src/blackgui/dockwidget.cpp

@@ -63,6 +63,18 @@ namespace BlackGui
         connect(this, &QDockWidget::visibilityChanged, this, &CDockWidget::ps_onVisibilityChanged);
     }
 
+    void CDockWidget::setMargins()
+    {
+        if (this->isFloating())
+        {
+            this->setContentsMargins(this->isFrameless() ? this->getMarginsWhenFramelessFloating() : this->getMarginsWhenFloating());
+        }
+        else
+        {
+            this->setContentsMargins(this->getMarginsWhenDocked());
+        }
+    }
+
     CDockWidget::CDockWidget(QWidget *parent): CDockWidget(true, parent)
     { }
 
@@ -175,7 +187,6 @@ namespace BlackGui
     void CDockWidget::resetWasAlreadyFloating()
     {
         this->m_wasAlreadyFloating = false;
-        this->m_resetedFloating = true;
     }
 
     void CDockWidget::setPreferredSizeWhenFloating(const QSize &size)
@@ -204,12 +215,6 @@ namespace BlackGui
             }
         }
 
-        // margins
-        if (this->isFloating())
-        {
-            this->setContentsMargins(frameless ? this->getMarginsWhenFramelessFloating() : this->getMarginsWhenFloating());
-        }
-
         // resize
         if (frameless)
         {
@@ -218,6 +223,7 @@ namespace BlackGui
             this->resize(innerWidget->size());
         }
 
+        this->setMargins();
         this->forceStyleSheetUpdate(); // force style sheet reload
     }
 
@@ -280,6 +286,7 @@ namespace BlackGui
         {
             return this->restoreGeometry(geo);
         }
+        this->setMargins();
         return true;
     }
 
@@ -331,16 +338,14 @@ namespace BlackGui
         {
             contextMenu->addAction(BlackMisc::CIcons::floatOne16(), "Float", this, &CDockWidget::toggleFloating);
         }
+
+        // Margin actions
         contextMenu->addAction(BlackMisc::CIcons::load16(), "Restore", this, &CDockWidget::restoreFromSettings);
         contextMenu->addAction(BlackMisc::CIcons::save16(), "Save state", this, &CDockWidget::saveToSettings);
-
-        // Margin action
-        if (this->isFloating())
-        {
-            this->m_input->setMargins(this->contentsMargins());
-            contextMenu->addAction(BlackMisc::CIcons::tableSheet16(), "Margins", this, &CDockWidget::ps_dummy);
-            contextMenu->addAction(this->m_marginMenuAction);
-        }
+        contextMenu->addAction(BlackMisc::CIcons::save16(), "Reset to defaults", this, &CDockWidget::resetSettings);
+        this->m_input->setMargins(this->contentsMargins());
+        contextMenu->addAction(BlackMisc::CIcons::tableSheet16(), "Margins", this, &CDockWidget::ps_dummy);
+        contextMenu->addAction(this->m_marginMenuAction);
     }
 
     void CDockWidget::initialFloating()
@@ -377,6 +382,7 @@ namespace BlackGui
 
     void CDockWidget::ps_onTopLevelChanged(bool topLevel)
     {
+        this->setMargins();
         if (topLevel)
         {
             if (this->m_windowTitleBackup != QDockWidget::windowTitle())
@@ -392,12 +398,6 @@ namespace BlackGui
             {
                 if (m_wasFrameless) { setFrameless(true); }
             }
-
-            this->setContentsMargins(
-                this->isFrameless() ?
-                this->getMarginsWhenFramelessFloating() :
-                this->getMarginsWhenFloating()
-            );
             this->m_statusBar.show();
             this->m_wasAlreadyFloating = true;
         }
@@ -409,7 +409,6 @@ namespace BlackGui
             if (!this->m_windowTitleWhenDocked) { QDockWidget::setWindowTitle(""); }
             this->m_statusBar.hide();
             this->setEmptyTitleBar();
-            this->setContentsMargins(this->getMarginsWhenDocked());
 
             // sometimes floating sets a new minimum size, here we reset it
             if (this->minimumHeight() > this->m_initialDockedMinimumSize.height())
@@ -509,11 +508,12 @@ namespace BlackGui
             this->setMarginsWhenDocked(margins);
         }
         this->setContentsMargins(margins);
+        this->repaint();
     }
 
     void CDockWidget::ps_settingsChanged()
     {
-        // void
+        // void, normally not used
     }
 
     void CDockWidget::ps_dummy()
@@ -539,14 +539,14 @@ namespace BlackGui
         CSettingsDockWidgets all = this->m_settings.get();
         if (all.contains(name)) { return; }
         all.getByNameOrInitToDefault(name);
-        this->m_settings.set(all);
+        this->m_settings.setAndSave(all);
     }
 
     QString CDockWidget::getNameForSettings() const
     {
-        const QString name(this->m_windowTitleBackup.toLower().remove(' ')); // let`s see how far I get with that
-        Q_ASSERT_X(!name.isEmpty(), Q_FUNC_INFO, "no name");
-        return name;
+        const QString n(this->objectName().toLower().remove(' '));
+        Q_ASSERT_X(!n.isEmpty(), Q_FUNC_INFO, "No settings name");
+        return n;
     }
 
     CSettingsDockWidget CDockWidget::getSettings() const
@@ -579,4 +579,12 @@ namespace BlackGui
         s.setGeometry(this->saveGeometry());
         this->setSettings(s);
     }
+
+    void CDockWidget::resetSettings()
+    {
+        CSettingsDockWidget s = this->getSettings();
+        s.reset();
+        this->setSettings(s);
+        this->restoreFromSettings();
+    }
 } // namespace

src/blackgui/dockwidget.h

@@ -120,6 +120,9 @@ namespace BlackGui
         //! Remember widget state
         void saveToSettings();
 
+        //! Reset margin settings
+        void resetSettings();
+
         //! Set title and internally keep a backup
         void setWindowTitle(const QString &title);
 
@@ -140,6 +143,9 @@ namespace BlackGui
         //! Constructor
         CDockWidget(bool allowStatusBar, QWidget *parent = nullptr);
 
+        //! Set margins from settings
+        void setMargins();
+
         //! Margins when window is floating
         void setMarginsWhenFloating(const QMargins &margins);
 
@@ -223,7 +229,6 @@ namespace BlackGui
         bool m_allowStatusBar        = true;
         bool m_windowTitleWhenDocked = true;
         bool m_wasAlreadyFloating    = false;
-        bool m_resetedFloating       = false;
         bool m_selected              = false;         //!< selected when tabbed
         bool m_dockWidgetVisible     = false;         //!< logical visible, not to be confused with QDockWidget::isVisible()
         bool m_wasFrameless          = false;         //!< frameless when last floating

src/blackgui/settings/settingsdockwidget.cpp

@@ -20,6 +20,20 @@ namespace BlackGui
         CSettingsDockWidget::CSettingsDockWidget()
         { }
 
+        void CSettingsDockWidget::resetMarginsToDefault()
+        {
+            // this->setMarginsWhenFloating(QMargins(0, 3, 15, 35)); // found by trial and error on windows
+            this->setMarginsWhenFloating(QMargins(0, 0, 0, 0));
+            this->setMarginsWhenFramelessFloating(QMargins(0, 0, 0, 0));
+            this->setMarginsWhenDocked(QMargins(0, 0, 0, 0));
+        }
+
+        void CSettingsDockWidget::reset()
+        {
+            this->resetMarginsToDefault();
+            this->m_geometry = "";
+        }
+
         void CSettingsDockWidget::setMarginsWhenFramelessFloating(const QMargins &margins)
         {
             this->m_floatingFramelessMargins = marginsToString(margins);
@@ -161,9 +175,17 @@ namespace BlackGui
 
             // default values can be set here, this could be enhanced if needed
             // e.g. by platform dependent defaults
-            s.setMarginsWhenFloating(QMargins(0, 3, 15, 35)); // found by trial and error on windows
+            s.reset();
             this->insert(name, s);
             return s;
         }
+
+        void CSettingsDockWidgets::resetToDefaults(const QString &name)
+        {
+            if (this->contains(name))
+            {
+                this->remove(name);
+            }
+        }
     } // ns
 } // ns

src/blackgui/settings/settingsdockwidget.h

@@ -47,6 +47,12 @@ namespace BlackGui
             //! Destructor.
             ~CSettingsDockWidget() {}
 
+            //! Reset margins to default
+            void resetMarginsToDefault();
+
+            //! Reset to defaults
+            void reset();
+
             //! Set margins for given dock widget
             void setMarginsWhenFramelessFloating(const QMargins &margins);
 
@@ -137,6 +143,9 @@ namespace BlackGui
 
             //! Get setting or init by estimated default values
             CSettingsDockWidget getByNameOrInitToDefault(const QString &name);
+
+            //! Reset to defaults
+            void resetToDefaults(const QString &name);
         };
 
         //! Trait for settings for dock widget