Added more tft functions to common and emulator. Fixed eventloop.

emulator/qt/main.cpp

@@ -3,29 +3,29 @@
 
 
 extern "C" {
-    void qt_init(int argc, char* argv[]);
-    int qt_execute();
-    void app_init();
-    void app_process();
+    void qt_init(int argc, char* argv[]); //Will be called at the top of the main() function
+    int qt_execute(); //Will be called after calling qt_execute
+    void app_init(); //Initializes the app
+    void app_process(); //Processes one eventloop of the app
 }
 
-QApplication* app_ptr;
+QApplication* app_ptr=NULL;
 
 void qt_init(int argc, char* argv[]) {
-    static QApplication app(argc,argv);
-    app_ptr = &app;
+    app_ptr = new QApplication(argc,argv);
     app_init();
 }
 
 void app_loop() {
-    while(1) {
+    while(QApplication::activeWindow()!=NULL) {
         app_process();
         QApplication::processEvents();
     }
 }
 
 int qt_execute() {
-
     QtConcurrent::run(&app_loop);
-    return app_ptr->exec();
+    int ret= app_ptr->exec();
+    delete app_ptr;
+    return ret;
 }