New login modal mode.

src/main.cpp

@@ -3,6 +3,7 @@
 #include "loginwindow.h"
 #include "InputObject.h"
 #include <QQmlApplicationEngine>
+#include <src/db/SQLHelper.h>
 
 int main(int argc, char *argv[])
 {
@@ -25,23 +26,21 @@ int main(int argc, char *argv[])
 
 	//a.installEventFilter(obj);
     InputObject *obj = new InputObject();
-
 	a.installEventFilter(obj);
-
-    needLogin:
-    LoginWindow l;
-    l.showFullScreen();
-
-
+    SQLHelper::Open();
     MainWindow w;
+    w.showFullScreen();
+    LoginWindow l;
+    needLogin:
+    l.showFullScreen();
     int rec =  l.exec();
     if (rec !=QDialog::Accepted )
     {
         goto needLogin;
     }
 //    l.deleteLater();
+    w.centerWidgetShow();
 
-    w.showFullScreen();
 
     return a.exec();
 }