/****************************************************************************

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** This file is part of the documentation of the Qt Toolkit.

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** contained in the Technology Preview License Agreement accompanying

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#include <QtGui>

#include <QApplication>

class Widget : public QWidget

{

public:

    Widget(QWidget *parent = 0);

};

Widget::Widget(QWidget *parent)

    : QWidget(parent)

{

//! [0]

    QWidget *firstPageWidget = new QWidget;

    QWidget *secondPageWidget = new QWidget;

    QWidget *thirdPageWidget = new QWidget;

    QStackedLayout *stackedLayout = new QStackedLayout;

    stackedLayout->addWidget(firstPageWidget);

    stackedLayout->addWidget(secondPageWidget);

    stackedLayout->addWidget(thirdPageWidget);

//! [0] //! [1]

    QComboBox *pageComboBox = new QComboBox;

    pageComboBox->addItem(tr("Page 1"));

    pageComboBox->addItem(tr("Page 2"));

    pageComboBox->addItem(tr("Page 3"));

    connect(pageComboBox, SIGNAL(activated(int)),

            stackedLayout, SLOT(setCurrentIndex(int)));

//! [1]

//! [2]

    QVBoxLayout *mainLayout = new QVBoxLayout;

//! [2]

    mainLayout->addWidget(pageComboBox);

//! [3]

    mainLayout->addLayout(stackedLayout);

    setLayout(mainLayout);

//! [3]

}

int main(int argc, char *argv[])

{

    QApplication app(argc, argv);

    Widget widget;

    widget.show();

    return app.exec();

}