Add button to open settings window to dock

Also apply current OBS theme to status dock by using "OBSDock" wrapper
class

src/advanced-scene-switcher.cpp

@@ -699,6 +699,21 @@ void LoadPlugins()
 	}
 }
 
+void OpenSettingsWindow()
+{
+	if (switcher->settingsWindowOpened) {
+		AdvSceneSwitcher::window->show();
+		AdvSceneSwitcher::window->raise();
+		AdvSceneSwitcher::window->activateWindow();
+	} else {
+		AdvSceneSwitcher::window =
+			new AdvSceneSwitcher(static_cast<QMainWindow *>(
+				obs_frontend_get_main_window()));
+		AdvSceneSwitcher::window->setAttribute(Qt::WA_DeleteOnClose);
+		AdvSceneSwitcher::window->show();
+	}
+}
+
 extern "C" void InitSceneSwitcher(obs_module_t *m, translateFunc t)
 {
 	blog(LOG_INFO, "version: %s", g_GIT_TAG);
@@ -712,25 +727,10 @@ extern "C" void InitSceneSwitcher(obs_module_t *m, translateFunc t)
 	LoadPlugins();
 	SetupDock();
 
-	auto cb = []() {
-		if (switcher->settingsWindowOpened) {
-			AdvSceneSwitcher::window->show();
-			AdvSceneSwitcher::window->raise();
-			AdvSceneSwitcher::window->activateWindow();
-		} else {
-			AdvSceneSwitcher::window =
-				new AdvSceneSwitcher(static_cast<QMainWindow *>(
-					obs_frontend_get_main_window()));
-			AdvSceneSwitcher::window->setAttribute(
-				Qt::WA_DeleteOnClose);
-			AdvSceneSwitcher::window->show();
-		}
-	};
-
 	obs_frontend_add_save_callback(SaveSceneSwitcher, nullptr);
 	obs_frontend_add_event_callback(OBSEvent, switcher);
 
 	QAction *action = (QAction *)obs_frontend_add_tools_menu_qaction(
 		obs_module_text("AdvSceneSwitcher.pluginName"));
-	action->connect(action, &QAction::triggered, cb);
+	action->connect(action, &QAction::triggered, OpenSettingsWindow);
 }

src/advanced-scene-switcher.hpp

@@ -314,10 +314,11 @@ private:
 	int currentActionIdx = -1;
 };
 
+void OpenSettingsWindow();
+
 /******************************************************************************
  * Sceneswitch helper
  ******************************************************************************/
-
 void setNextTransition(const sceneSwitchInfo &ssi, obs_source_t *currentSource,
 		       transitionData &td);
 void overwriteTransitionOverride(const sceneSwitchInfo &ssi,

src/status-control.cpp

@@ -98,21 +98,46 @@ void StatusControl::SetStopped()
 	_setToStopped = true;
 }
 
-StatusDock::StatusDock(QWidget *parent)
-	: QDockWidget(obs_module_text("AdvSceneSwitcher.windowTitle"), parent)
+#include <QToolBar>
+
+StatusDock::StatusDock(QWidget *parent) : OBSDock(parent)
 {
-	setFloating(true);
+	setWindowTitle(obs_module_text("AdvSceneSwitcher.windowTitle"));
+	setFeatures(DockWidgetClosable | DockWidgetMovable |
+		    DockWidgetFloatable);
 	// Setting a fixed object name is crucial for OBS to be able to restore
 	// the docks position, if the dock is not floating
 	setObjectName("Adv-ss-dock");
 
-	// Not sure why an extra QWidget wrapper is necessary...
-	// without it the dock widget seems to be partially transparent.
-	QWidget *tmp = new QWidget;
-	QHBoxLayout *layout = new QHBoxLayout;
+	QAction *action = new QAction;
+	action->setProperty("themeID", QVariant(QString::fromUtf8("cogsIcon")));
+	action->connect(action, &QAction::triggered, OpenSettingsWindow);
+	QIcon icon;
+	icon.addFile(
+		QString::fromUtf8(":/settings/images/settings/advanced.svg"),
+		QSize(), QIcon::Normal, QIcon::Off);
+	action->setIcon(icon);
+
+	auto toolLayout = new QBoxLayout(QBoxLayout::TopToBottom, this);
+	toolLayout->setContentsMargins(0, 0, 0, 0);
+	auto toolbar = new QToolBar;
+	toolbar->setIconSize({16, 16});
+	toolbar->setFloatable(false);
+	toolbar->addAction(action);
+	toolLayout->addWidget(toolbar);
+
+	QVBoxLayout *layout = new QVBoxLayout;
 	layout->addWidget(new StatusControl(this));
-	tmp->setLayout(layout);
-	setWidget(tmp);
+	layout->setContentsMargins(0, 0, 0, 0);
+	layout->addLayout(toolLayout);
+
+	// QFrame wrapper is necessary to avoid dock being partially
+	// transparent
+	QFrame *wrapper = new QFrame;
+	wrapper->setFrameShape(QFrame::StyledPanel);
+	wrapper->setFrameShadow(QFrame::Sunken);
+	wrapper->setLayout(layout);
+	setWidget(wrapper);
 }
 
 void SetupDock()

src/status-control.hpp

@@ -31,7 +31,15 @@ private:
 	bool _setToStopped = true;
 };
 
-class StatusDock : public QDockWidget {
+// Only used to enable applying "OBSDock" stylesheet
+class OBSDock : public QDockWidget {
+	Q_OBJECT
+
+public:
+	inline OBSDock(QWidget *parent = nullptr) : QDockWidget(parent) {}
+};
+
+class StatusDock : public OBSDock {
 	Q_OBJECT
 
 public: