feat: add an option to show/hide navigator view

app/mainwindow.cpp

@@ -78,11 +78,16 @@ MainWindow::MainWindow(QWidget *parent)
     // Binding graphics and navigator views signals
     connect(ui->m_gv, &GraphicsView::navigatorViewRequired,
             this, [this](bool required, const QTransform & tf){
+        if (Settings::instance()->showNavigatorView()){
             ui->m_nav->setTransform(GraphicsView::resetScale(tf));
             ui->m_nav->fitInView(ui->m_nav->sceneRect(), Qt::KeepAspectRatio);
             ui->m_nav->setVisible(required);
             ui->m_navPH->setVisible(required);
             ui->m_nav->updateMainViewportRegion();
+        } else {
+            ui->m_nav->setVisible(false);
+            ui->m_navPH->setVisible(false);
+        }
     });
     connect(ui->m_gv, &GraphicsView::viewportRectChanged,
             ui->m_nav, &NavigatorView::updateMainViewportRegion);

app/settings.cpp

@@ -42,6 +42,11 @@ namespace QEnumHelper
     }
 }
 
+bool Settings::showNavigatorView() const
+{
+    return m_qsettings->value("show_navigator_view", true).toBool();
+}
+
 bool Settings::useLightCheckerboard() const
 {
     return m_qsettings->value("use_light_checkerboard", false).toBool();
@@ -83,6 +88,12 @@ Qt::HighDpiScaleFactorRoundingPolicy Settings::hiDpiScaleFactorBehavior() const
     return QEnumHelper::fromString<Qt::HighDpiScaleFactorRoundingPolicy>(result, Qt::HighDpiScaleFactorRoundingPolicy::PassThrough);
 }
 
+void Settings::setShowNavigatorView(bool on)
+{
+    m_qsettings->setValue("show_navigator_view", on);
+    m_qsettings->sync();
+}
+
 void Settings::setUseLightCheckerboard(bool light)
 {
     m_qsettings->setValue("use_light_checkerboard", light);

app/settings.h

@@ -25,6 +25,7 @@ public:
 
     static Settings *instance();
 
+    bool showNavigatorView() const;
     bool useLightCheckerboard() const;
     bool loopGallery() const;
     bool svgTiny12Only() const;
@@ -32,6 +33,7 @@ public:
     WindowSizeBehavior initWindowSizeBehavior() const;
     Qt::HighDpiScaleFactorRoundingPolicy hiDpiScaleFactorBehavior() const;
 
+    void setShowNavigatorView(bool on);
     void setUseLightCheckerboard(bool light);
     void setLoopGallery(bool on);
     void setSvgTiny12Only(bool on);

app/settingsdialog.cpp

@@ -79,6 +79,7 @@ SettingsDialog::SettingsDialog(QWidget *parent)
     setWindowFlag(Qt::WindowContextHelpButtonHint, false);
 
     auto* settings = Settings::instance();
+    ui->m_showNavigatorView->setChecked(Settings::instance()->showNavigatorView());
     ui->m_useLightCheckerboard->setChecked(settings->useLightCheckerboard());
     ui->m_loopGallery->setChecked(settings->loopGallery());
     ui->m_svgTiny12Only->setChecked(settings->svgTiny12Only());
@@ -100,6 +101,10 @@ SettingsDialog::SettingsDialog(QWidget *parent)
 # define QT_CHECKSTATE int
 #endif // QT_VERSION >= QT_VERSION_CHECK(6, 7, 0)
 
+    connect(ui->m_showNavigatorView, &QCHECKBOX_CHECKSTATECHANGED, this, [ = ](QT_CHECKSTATE state){
+        Settings::instance()->setShowNavigatorView(state == Qt::Checked);
+    });
+
     connect(ui->m_useLightCheckerboard, &QCHECKBOX_CHECKSTATECHANGED, this, [ = ](QT_CHECKSTATE state){
         Settings::instance()->setUseLightCheckerboard(state == Qt::Checked);
     });

app/settingsdialog.ui

@@ -20,54 +20,61 @@
       </attribute>
       <layout class="QFormLayout" name="settingsForm">
         <item row="0" column="0" colspan="2">
+         <widget class="QCheckBox" name="m_showNavigatorView">
+          <property name="text">
+           <string>Show navigation view</string>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="0" colspan="2">
          <widget class="QCheckBox" name="m_useLightCheckerboard">
           <property name="text">
            <string>Use light-color checkerboard</string>
           </property>
          </widget>
         </item>
-        <item row="1" column="0" colspan="2">
+        <item row="2" column="0" colspan="2">
          <widget class="QCheckBox" name="m_loopGallery">
           <property name="text">
            <string>Loop the loaded gallery</string>
           </property>
          </widget>
         </item>
-        <item row="2" column="0" colspan="2">
+        <item row="3" column="0" colspan="2">
          <widget class="QCheckBox" name="m_svgTiny12Only">
           <property name="text">
            <string>Limit SVG support to SVG Tiny 1.2</string>
           </property>
          </widget>
         </item>
-       <item row="3" column="0">
+       <item row="4" column="0">
          <widget class="QLabel" name="m_mouseWheelBehaviorLabel">
          <property name="text">
           <string>Mouse wheel behavior</string>
          </property>
         </widget>
        </item>
-       <item row="3" column="1">
+       <item row="4" column="1">
         <widget class="QComboBox" name="m_mouseWheelBehavior"/>
        </item>
-       <item row="4" column="0">
+       <item row="5" column="0">
          <widget class="QLabel" name="m_initWindowSizeBehaviorLabel">
          <property name="text">
           <string>Default window size</string>
          </property>
         </widget>
        </item>
-       <item row="4" column="1">
+       <item row="5" column="1">
         <widget class="QComboBox" name="m_initWindowSizeBehavior"/>
        </item>
-       <item row="5" column="0">
+       <item row="6" column="0">
          <widget class="QLabel" name="m_hiDpiRoundingPolicyBehaviorLabel">
          <property name="text">
           <string>HiDPI scale factor rounding policy</string>
          </property>
         </widget>
        </item>
-       <item row="5" column="1">
+       <item row="6" column="1">
         <widget class="QComboBox" name="m_hiDpiRoundingPolicyBehavior"/>
        </item>
       </layout>