Qt: Only show emulator restart warning once per settings saving

CHANGES

@@ -52,6 +52,7 @@ Other fixes:
  - Qt: Fix race conditions initializing GDB stub
  - GBA: Set up GPIO mapping on null and ELF ROM regions (fixes mgba.io/i/1481)
  - GBA Cheats: Fix value incrementing in CB slide codes (fixes mgba.io/i/1501)
+ - Qt: Only show emulator restart warning once per settings saving
 Misc:
  - GBA Savedata: EEPROM performance fixes
  - GBA Savedata: Automatically map 1Mbit Flash files as 1Mbit Flash

src/platform/qt/Window.cpp

@@ -152,6 +152,8 @@ Window::Window(CoreManager* manager, ConfigController* config, int playerId, QWi
 	m_log.load(m_config);
 	m_fpsTimer.setInterval(FPS_TIMER_INTERVAL);
 	m_focusCheck.setInterval(200);
+	m_mustRestart.setInterval(MUST_RESTART_TIMEOUT);
+	m_mustRestart.setSingleShot(true);
 
 	m_shortcutController->setConfigController(m_config);
 	m_shortcutController->setActionMapper(&m_actions);
@@ -970,6 +972,10 @@ void Window::tryMakePortable() {
 }
 
 void Window::mustRestart() {
+	if (m_mustRestart.isActive()) {
+		return;
+	}
+	m_mustRestart.start();
 	QMessageBox* dialog = new QMessageBox(QMessageBox::Warning, tr("Restart needed"),
 	                                      tr("Some changes will not take effect until the emulator is restarted."),
 	                                      QMessageBox::Ok, this, Qt::Sheet);

src/platform/qt/Window.h

@@ -145,6 +145,7 @@ private slots:
 
 private:
 	static const int FPS_TIMER_INTERVAL = 2000;
+	static const int MUST_RESTART_TIMEOUT = 10000;
 
 	void setupMenu(QMenuBar*);
 	void openStateWindow(LoadSave);
@@ -199,6 +200,7 @@ private:
 	QList<qint64> m_frameList;
 	QElapsedTimer m_frameTimer;
 	QTimer m_fpsTimer;
+	QTimer m_mustRestart;
 	QList<QString> m_mruFiles;
 	ShortcutController* m_shortcutController;
 #if defined(BUILD_GL) || defined(BUILD_GLES2)