toolbar.h Example File
mainwindows/mainwindow/toolbar.h 
          
            
            
#ifndef TOOLBAR_H
#define TOOLBAR_H
#include <QToolBar>
QT_FORWARD_DECLARE_CLASS(QAction)
QT_FORWARD_DECLARE_CLASS(QActionGroup)
QT_FORWARD_DECLARE_CLASS(QMenu)
QT_FORWARD_DECLARE_CLASS(QSpinBox)
class ToolBar : public QToolBar
{
    Q_OBJECT
public:
    explicit ToolBar(const QString &title, QWidget *parent);
    QMenu *toolbarMenu() const { return menu; }
private slots:
    void order();
    void randomize();
    void addSpinBox();
    void removeSpinBox();
    void changeMovable(bool movable);
    void allowLeft(bool a);
    void allowRight(bool a);
    void allowTop(bool a);
    void allowBottom(bool a);
    void placeLeft(bool p);
    void placeRight(bool p);
    void placeTop(bool p);
    void placeBottom(bool p);
    void updateMenu();
    void insertToolBarBreak();
private:
    void allow(Qt::ToolBarArea area, bool allow);
    void place(Qt::ToolBarArea area, bool place);
    QSpinBox *spinbox;
    QAction *spinboxAction;
    QMenu *menu;
    QAction *orderAction;
    QAction *randomizeAction;
    QAction *addSpinBoxAction;
    QAction *removeSpinBoxAction;
    QAction *movableAction;
    QActionGroup *allowedAreasActions;
    QAction *allowLeftAction;
    QAction *allowRightAction;
    QAction *allowTopAction;
    QAction *allowBottomAction;
    QActionGroup *areaActions;
    QAction *leftAction;
    QAction *rightAction;
    QAction *topAction;
    QAction *bottomAction;
};
#endif // TOOLBAR_H