Remove Engine's has_gui option

src/core/Engine.cpp

@@ -38,8 +38,9 @@
 #include "Song.h"
 #include "BandLimitedWave.h"
 
+#include "GuiApplication.h"
+
 
-bool Engine::s_hasGUI = true;
 bool Engine::s_suppressMessages = false;
 float Engine::s_framesPerTick;
 Mixer* Engine::s_mixer = NULL;
@@ -54,10 +55,8 @@ QMap<QString, QString> Engine::s_pluginFileHandling;
 
 
 
-void Engine::init( const bool _has_gui )
+void Engine::init()
 {
-	s_hasGUI = _has_gui;
-
 	// generate (load from file) bandlimited wavetables
 	BandLimitedWave::generateWaves();
 
@@ -109,6 +108,11 @@ void Engine::destroy()
 	delete ConfigManager::inst();
 }
 
+bool Engine::hasGUI()
+{
+	return gui != nullptr;
+}
+
 
 
 

src/core/main.cpp

@@ -485,7 +485,7 @@ int main( int argc, char * * argv )
 	else
 	{
 		// we're going to render our song
-		Engine::init( false );
+		Engine::init();
 
 		printf( "loading project...\n" );
 		Engine::getSong()->loadProject( file_to_load );

src/gui/GuiApplication.cpp

@@ -51,8 +51,6 @@ GuiApplication* GuiApplication::instance()
 
 GuiApplication::GuiApplication()
 {
-	s_instance = this;
-
 	// Init style and palette
 	LmmsStyle* lmmsstyle = new LmmsStyle();
 	QApplication::setStyle(lmmsstyle);
@@ -71,7 +69,9 @@ GuiApplication::GuiApplication()
 	qApp->processEvents();
 
 	// Init central engine which handles all components of LMMS
-	Engine::init(false);
+	Engine::init();
+
+	s_instance = this;
 
 	m_mainWindow = new MainWindow;
 
@@ -85,11 +85,10 @@ GuiApplication::GuiApplication()
 
 	m_mainWindow->finalize();
 	splashScreen.finish(m_mainWindow);
-
-	Engine::s_hasGUI = true;
 }
 
 GuiApplication::~GuiApplication()
 {
 	InstrumentTrackView::cleanupWindowCache();
+	s_instance = nullptr;
 }