#include <QAbstractTransition>
#include <QApplication>
#include <QFinalState>
#include <QMainWindow>
#include <QState>
#include <QStateMachine>
#include <QtGui>

class CustomTransition : public QAbstractTransition
{
public:
    CustomTransition(const int id) : m_id(id) {}
    
protected:
    virtual bool eventTest(QEvent *e)
    {
        return (e->type() == QEvent::Type(m_id)) ? true : false;
    }
    
    virtual void onTransition(QEvent*) {}
    
private:
    int m_id;
};

class MyState1 : public QState
{
//    Q_OBJECT

public:
    MyState1(QStateMachine& machine, QState* parent) : QState(parent), m_machine(machine) {}
    virtual ~MyState1() {}
    
protected:
    void onEntry(QEvent* event)
    {
        QEvent* transEvent = new QEvent(QEvent::Type(QEvent::User+1));
        m_machine.postEvent(transEvent);
    }
    
    void onExit(QEvent* event)
    {
    }
    
private:
    QStateMachine& m_machine;
};

class MyState2 : public QState
{
//    Q_OBJECT

public:
    MyState2(QState* parent) : QState(parent), m_window(NULL) {}
    virtual ~MyState2() {}
    
protected:
    void onEntry(QEvent* event)
    {
        m_window = new QMainWindow();
        
        // The softkeys visible flag is required to get the softkeys to show in full-screen mode.
        Qt::WindowFlags flags = m_window->windowFlags();
        flags |= Qt::WindowSoftkeysVisibleHint;
        m_window->setWindowFlags(flags);
        
        QLabel *label = new QLabel("Name2:");
        QLineEdit *lineEdit = new QLineEdit();

        m_window->layout()->addWidget(label);
        m_window->layout()->addWidget(lineEdit);
        
        QAction* menuItem1 = new QAction("Menu1", m_window);
        // meaningless connection
        m_window->connect(menuItem1, SIGNAL(triggered()), m_window, SLOT(update()));
        m_window->menuBar()->addAction(menuItem1);
        
        QAction* menuItem2 = new QAction("Menu2", m_window);
        // meaningless connection
        m_window->connect(menuItem2, SIGNAL(triggered()), m_window, SLOT(update()));
        m_window->menuBar()->addAction(menuItem2);
        
        m_window->showFullScreen();
    }
    
    void onExit(QEvent* event)
    {
        if (m_window)
        {
            delete m_window;
            m_window = NULL;
        }
    }
    
private:
    QMainWindow* m_window;
};

LOCAL_C void createTransition(int eventType, QState* from, QAbstractState* to)
{
    CustomTransition *transition = new CustomTransition(eventType);
    transition->setTargetState(to);
    from->addTransition(transition);
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QStateMachine machine;
    QState* state1 = new MyState1(machine, NULL);
    QState* state2 = new MyState2(NULL);
    machine.addState(state1);
    machine.addState(state2);
    machine.setInitialState(state1);
    createTransition(QEvent::User+1, state1, state2);
    machine.start();
    
    return app.exec();
}