Qt Creator: Design changes not showing when run - qt

Question

I had made some changes on the 'mainwindow.ui' file from the folder: 'Forms'.
I've added a new title entitled 'File' and there only two simple options, 'Add Fractal' and 'Exit'
You can also see that both are on the mainwindow.ui file:
But when I run the project, the window is not showing as I wish. Tabs are not showing.
I had build, rebuild and make, and still have this strange thing.
Can anyone give me a hand?
mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private:
Ui::MainWindow *ui;
void createActions();
void createMenus();
// Widgets i layouts
QWidget *centralWidget;
// Accions associades als menus
QAction *exitAct;
// Menus principals
QMenu *fileMenu;
};
#endif // MAINWINDOW_H
mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
centralWidget = new QWidget;
setCentralWidget(centralWidget); createActions();
createMenus();
setWindowTitle(tr("Practica 1: GiVD 2011-2012"));
resize(640, 480);
}
void MainWindow::createActions() {
exitAct = new QAction(tr("&Exit"), this);
exitAct->setShortcut(tr("Ctrl+Q"));
exitAct->setStatusTip(tr("Sortir del programa"));
connect(exitAct, SIGNAL(triggered()), qApp, SLOT(closeAllWindows()));
}
void MainWindow::createMenus()
{
fileMenu = menuBar()->addMenu(tr("&File"));
fileMenu->addSeparator();
// Per a cada nou submenú has de fer un addAction
fileMenu->addAction(exitAct);
}
MainWindow::~MainWindow()
{
delete ui;
}
main.cpp
#include <QtGui/QApplication>
#include "mainwindow.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}
mainwindow.ui
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>400</width>
<height>300</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralWidget"/>
<widget class="QMenuBar" name="menuBar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>400</width>
<height>22</height>
</rect>
</property>
<widget class="QMenu" name="menuFile">
<property name="title">
<string>File</string>
</property>
<addaction name="actionAdd_Fractal"/>
<addaction name="actionExit"/>
</widget>
<addaction name="menuFile"/>
</widget>
<widget class="QToolBar" name="mainToolBar">
<attribute name="toolBarArea">
<enum>TopToolBarArea</enum>
</attribute>
<attribute name="toolBarBreak">
<bool>false</bool>
</attribute>
</widget>
<widget class="QStatusBar" name="statusBar"/>
<action name="actionAdd_Fractal">
<property name="text">
<string>Add Fractal</string>
</property>
</action>
<action name="actionExit">
<property name="text">
<string>Exit</string>
</property>
</action>
</widget>
<layoutdefault spacing="6" margin="11"/>
<resources/>
<connections/>
</ui>

Answer 1

I got into the same issue until I realized that menu's on a mac OS appear at the top and not at the application window.
See if this is the case for you.
Thanks,