#ifndef DIALOG_H
#define DIALOG_H

#include <QApplication>
#include <QBoxLayout>
#include <QDialog>
#include <QMainWindow>
#include <QMenu>
#include <QMenuBar>
#include <QMessageBox>
#include <QPushButton>

class Dialog : public QDialog
{
	Q_OBJECT

public :
	Dialog(QWidget *parent = 0)
		: QDialog(parent)
	{
		QPushButton *b = new QPushButton("exec",this);
		QBoxLayout *l = new QBoxLayout(QBoxLayout::TopToBottom);
		l->addWidget(b);
		connect(b,SIGNAL(clicked()),this,SLOT(boom()));
	}

protected slots :
	void boom()
	{
		hide();
		QMessageBox::information(this,"Info","The application will now crash");
		show();
	}

};

class MyWindow : public QMainWindow
{
	Q_OBJECT

public :
	MyWindow()
	{
		setCentralWidget(new QWidget(this));
		QMenu *m = menuBar()->addMenu(tr("Actions"));
		QAction *a = m->addAction(tr("Dialog"));
		connect(a,SIGNAL(triggered()),this,SLOT(showMenu()));
	}

public slots :
	void showMenu()
	{
		Dialog w(this);
		w.exec();
	}

};

#endif // DIALOG_H