Add the ability to specify the default page

assets/resources.qrc

@@ -42,6 +42,8 @@
         <file>icons/climate_ref.svg</file>
         <file>icons/chevron_right.svg</file>
         <file>icons/defrost.svg</file>
+        <file>icons/home.svg</file>
+        <file>icons/visibility.svg</file>
         <file>icons/light/check.svg</file>
         <file>icons/dark/check.svg</file>
         <file>stylesheets/light.qss</file>

include/app/config.hpp

@@ -121,6 +121,10 @@ class Config : public QObject {
         // emit scale_changed(this->scale);
     }
 
+    inline QString get_home_page() { return this->home_page; }
+    inline void set_home_page(QString home_page) { this->home_page = home_page; }
+
+    inline QMap<QString, bool> get_pages() { return this->pages; }
     inline bool get_page(QWidget *page) { return this->pages.value(page->objectName(), true); }
     inline void set_page(QWidget *page, bool enabled)
     {
@@ -216,6 +220,7 @@ class Config : public QObject {
     QVideoFrame::PixelFormat cam_local_format_override;
     bool cam_autoconnect;
     int cam_autoconnect_time_secs;
+    QString home_page;
     QMap<QString, bool> pages;
     QString vehicle_plugin;
     bool vehicle_can_bus;

include/app/theme.hpp

@@ -52,6 +52,7 @@ class Theme : public QObject {
 
     void set_scale(double scale);
 
+    QIcon make_icon(QString name);
     QIcon make_button_icon(QString name, QPushButton *button, QString alt_name = QString(), bool dynamic = false);
     void update();
 

src/app/config.cpp

@@ -42,6 +42,7 @@ Config::Config()
     this->vehicle_plugin = this->settings.value("Vehicle/plugin", QString()).toString();
     this->vehicle_can_bus = this->settings.value("Vehicle/can_bus", false).toBool();
     this->vehicle_interface = this->settings.value("Vehicle/interface", QString()).toString();
+    this->home_page = this->settings.value("home_page", "Android Auto").toString();
     this->settings.beginGroup("Pages");
     for (auto key : this->settings.childKeys())
         this->pages[key] = this->settings.value(key, true).toBool();
@@ -123,6 +124,8 @@ void Config::save()
         this->settings.setValue("Vehicle/can_bus", this->vehicle_can_bus);
     if (this->vehicle_interface != this->settings.value("Vehicle/interface").toString())
         this->settings.setValue("Vehicle/interface", this->vehicle_interface);
+    if (this->home_page != this->settings.value("home_page").toString())
+        this->settings.setValue("home_page", this->home_page);
     for (auto id : this->pages.keys()) {
         QString key = QString("Pages/%1").arg(id);
         bool page_enabled = this->pages[id];

src/app/pages/settings.cpp

@@ -350,17 +350,69 @@ QWidget *LayoutSettingsTab::pages_widget()
     QGroupBox *group = new QGroupBox(widget);
     QVBoxLayout *group_layout = new QVBoxLayout(group);
 
+    QWidget *icon_row = new QWidget(group);
+    QHBoxLayout *icon_row_layout = new QHBoxLayout(icon_row);
+    group_layout->addWidget(icon_row);
+
+    QLabel *home_icon = new QLabel(icon_row);
+    home_icon->setPixmap(this->theme->make_icon("home").pixmap(home_icon->size()));
+    icon_row_layout->addWidget(home_icon);
+
+    QLabel *visibility_icon = new QLabel(icon_row);
+    visibility_icon->setPixmap(this->theme->make_icon("visibility").pixmap(visibility_icon->size()));
+    icon_row_layout->addWidget(visibility_icon, 1);
+
     DashWindow *window = qobject_cast<DashWindow *>(this->window());
 
+    QButtonGroup *button_group = new QButtonGroup();
     for (QAbstractButton *page : window->get_pages()) {
-        QCheckBox *button = new QCheckBox(page->property("page").value<QWidget *>()->objectName(), group);
-        button->setChecked(!page->isHidden());
-        connect(button, &QCheckBox::toggled, [page, config = this->config](bool checked) {
+        QString page_name = page->property("page").value<QWidget *>()->objectName();
+
+        QWidget *row = new QWidget(this);
+        QHBoxLayout *row_layout = new QHBoxLayout(row);
+
+        QRadioButton *is_home = new QRadioButton(row);
+        is_home->setEnabled(!page->isHidden());
+        is_home->setChecked(this->config->get_home_page() == page_name);
+        connect(is_home, &QCheckBox::toggled, [page_name, config = this->config](bool checked) {
+            if (checked) {
+                config->set_home_page(page_name);
+            }
+        });
+        row_layout->addWidget(is_home);
+        button_group->addButton(is_home);
+
+        QCheckBox *is_enabled = new QCheckBox(page_name, row);
+        is_enabled->setChecked(!page->isHidden());
+        connect(is_enabled, &QCheckBox::toggled, [page, is_home, button_group, config = this->config](bool checked) {
             config->set_page(page->property("page").value<QWidget *>(), checked);
+            is_home->setEnabled(checked);
+
+            // If the page becomes disabled and is set as the home then replace the home with the fist visible page
+            if (!checked && is_home->isChecked()) {
+                for (QAbstractButton *button : button_group->buttons()) {
+                    if (button->isEnabled()) {
+                        button->setChecked(true);
+                        break;
+                    }
+                }
+            }
         });
-        group_layout->addWidget(button);
+        row_layout->addWidget(is_enabled, 1);
+        group_layout->addWidget(row);
     }
 
+    // Note: To allow for the radio buttons to all become unchecked if all pages become disabled we need to have an
+    //  additional hidden radio button. We use this hidden radio button for making the settings page the home.
+    QRadioButton *is_settings_home = new QRadioButton();
+    is_settings_home->setChecked(this->config->get_home_page() == "Settings");
+    connect(is_settings_home, &QCheckBox::toggled, [config = this->config](bool checked) {
+        if (checked) {
+            config->set_home_page("Settings");
+        }
+    });
+    button_group->addButton(is_settings_home);
+
     layout->addWidget(group, 1, Qt::AlignHCenter);
 
     return widget;

src/app/theme.cpp

@@ -166,6 +166,11 @@ QIcon Theme::themed_button_icon(QIcon icon, QAbstractButton *button)
     return themed_icon;
 }
 
+QIcon Theme::make_icon(QString name)
+{
+    return QIcon(QString(":/icons/%1.svg").arg(name));
+}
+
 QIcon Theme::make_button_icon(QString name, QPushButton *button, QString alt_name, bool dynamic)
 {
     if (!alt_name.isNull())

src/app/window.cpp

@@ -156,9 +156,10 @@ void DashWindow::add_pages()
     this->add_page("Launcher", new LauncherPage(this), "widgets");
     this->add_page("Settings", new SettingsPage(this), "tune");
 
-    // toggle initial page
+    // Toggle home page
+    QString home_page = this->config->get_home_page();
     for (QAbstractButton *button : this->rail_group->buttons()) {
-        if (!button->isHidden()) {
+        if (!button->isHidden() && home_page == button->property("page").value<QWidget *>()->objectName()) {
             button->setChecked(true);
             break;
         }