map, theme & style selection won't be lost on data updata now (except the selected map/theme/style is deleted ofc). enabling F5 key to reload data :>
#include <QApplication>
#include "mainform.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MyWindow *mainWin = new MyWindow;
mainWin->show();
return app.exec();
}