feat: add an option to show/hide bird-eye view (#180)

app/mainwindow.cpp

@@ -93,10 +93,14 @@ MainWindow::MainWindow(QWidget *parent)
 
     connect(m_graphicsView, &GraphicsView::navigatorViewRequired,
             this, [this](bool required, const QTransform & tf){
+        if (Settings::instance()->showBirdEyeView()){
             m_gv->setTransform(GraphicsView::resetScale(tf));
             m_gv->fitInView(m_gv->sceneRect(), Qt::KeepAspectRatio);
             m_gv->setVisible(required);
             m_gv->updateMainViewportRegion();
+        } else {
+             m_gv->setVisible(false);
+        }
     });
 
     connect(m_graphicsView, &GraphicsView::viewportRectChanged,

app/settings.cpp

@@ -60,6 +60,11 @@ bool Settings::showTitleBar() const
     return m_qsettings->value("show_title_bar", true).toBool();
 }
 
+bool Settings::showBirdEyeView() const
+{
+    return m_qsettings->value("show_bird_eye_view", true).toBool();
+}
+
 bool Settings::useLightCheckerboard() const
 {
     return m_qsettings->value("use_light_checkerboard", false).toBool();
@@ -134,6 +139,12 @@ void Settings::setShowTitleBar(bool on)
     m_qsettings->sync();
 }
 
+void Settings::setShowBirdEyeView(bool on)
+{
+    m_qsettings->setValue("show_bird_eye_view", on);
+    m_qsettings->sync();
+}
+
 void Settings::setUseLightCheckerboard(bool light)
 {
     m_qsettings->setValue("use_light_checkerboard", light);

app/settings.h

@@ -37,6 +37,7 @@ public:
     bool stayOnTop() const;
     bool useBuiltInCloseAnimation() const;
     bool showTitleBar() const;
+    bool showBirdEyeView() const;
     bool useLightCheckerboard() const;
     bool loopGallery() const;
     bool autoLongImageMode() const;
@@ -49,6 +50,7 @@ public:
     void setStayOnTop(bool on);
     void setUseBuiltInCloseAnimation(bool on);
     void setShowTitleBar(bool on);
+    void setShowBirdEyeView(bool on);
     void setUseLightCheckerboard(bool light);
     void setLoopGallery(bool on);
     void setAutoLongImageMode(bool on);

app/settingsdialog.cpp

@@ -22,6 +22,7 @@ SettingsDialog::SettingsDialog(QWidget *parent)
     , m_stayOnTop(new QCheckBox)
     , m_useBuiltInCloseAnimation(new QCheckBox)
     , m_showTitleBar(new QCheckBox)
+    , m_showBirdEyeView(new QCheckBox)
     , m_useLightCheckerboard(new QCheckBox)
     , m_loopGallery(new QCheckBox)
     , m_autoLongImageMode(new QCheckBox)
@@ -125,6 +126,7 @@ SettingsDialog::SettingsDialog(QWidget *parent)
     settingsForm->addRow(tr("Stay on top when start-up"), m_stayOnTop);
     settingsForm->addRow(tr("Use built-in close window animation"), m_useBuiltInCloseAnimation);
     settingsForm->addRow(tr("Show title bar"), m_showTitleBar);
+    settingsForm->addRow(tr("Show bird's-eye view"), m_showBirdEyeView);
     settingsForm->addRow(tr("Use light-color checkerboard"), m_useLightCheckerboard);
     settingsForm->addRow(tr("Loop the loaded gallery"), m_loopGallery);
     settingsForm->addRow(tr("Auto long image mode"), m_autoLongImageMode);
@@ -137,6 +139,7 @@ SettingsDialog::SettingsDialog(QWidget *parent)
     m_stayOnTop->setChecked(Settings::instance()->stayOnTop());
     m_useBuiltInCloseAnimation->setChecked(Settings::instance()->useBuiltInCloseAnimation());
     m_showTitleBar->setChecked(Settings::instance()->showTitleBar());
+    m_showBirdEyeView->setChecked(Settings::instance()->showBirdEyeView());
     m_useLightCheckerboard->setChecked(Settings::instance()->useLightCheckerboard());
     m_loopGallery->setChecked(Settings::instance()->loopGallery());
     m_autoLongImageMode->setChecked(Settings::instance()->autoLongImageMode());
@@ -179,6 +182,10 @@ SettingsDialog::SettingsDialog(QWidget *parent)
         Settings::instance()->setShowTitleBar(state == Qt::Checked);
     });
 
+    connect(m_showBirdEyeView, &QCHECKBOX_CHECKSTATECHANGED, this, [ = ](QT_CHECKSTATE state){
+        Settings::instance()->setShowBirdEyeView(state == Qt::Checked);
+    });
+
     connect(m_useLightCheckerboard, &QCHECKBOX_CHECKSTATECHANGED, this, [ = ](QT_CHECKSTATE state){
         Settings::instance()->setUseLightCheckerboard(state == Qt::Checked);
     });

app/settingsdialog.h

@@ -25,6 +25,7 @@ private:
     QCheckBox * m_stayOnTop = nullptr;
     QCheckBox * m_useBuiltInCloseAnimation = nullptr;
     QCheckBox * m_showTitleBar = nullptr;
+    QCheckBox * m_showBirdEyeView = nullptr;
     QCheckBox * m_useLightCheckerboard = nullptr;
     QCheckBox * m_loopGallery = nullptr;
     QCheckBox * m_autoLongImageMode = nullptr;