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# multipagewidget.cpp Example File
designer/containerextension/multipagewidget.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
    **
    ** This file is part of the example classes of the Qt Toolkit.
    **
    ** Licensees holding valid Qt Preview licenses may use this file in
    ** accordance with the Qt Preview License Agreement provided with the
    ** Software.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    ** information about Qt Commercial License Agreements.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ****************************************************************************/

    #include <QtGui>

    #include "multipagewidget.h"

    MultiPageWidget::MultiPageWidget(QWidget *parent)
        : QWidget(parent)
    {
        comboBox = new QComboBox();
        comboBox->setObjectName("__qt__passive_comboBox");
        stackWidget = new QStackedWidget();

        connect(comboBox, SIGNAL(activated(int)),
                this, SLOT(setCurrentIndex(int)));

        layout = new QVBoxLayout();
        layout->addWidget(comboBox);
        layout->addWidget(stackWidget);
        setLayout(layout);
    }

    QSize MultiPageWidget::sizeHint() const
    {
        return QSize(200, 150);
    }

    void MultiPageWidget::addPage(QWidget *page)
    {
        insertPage(count(), page);
    }

    void MultiPageWidget::removePage(int index)
    {
        QWidget *widget = stackWidget->widget(index);
        stackWidget->removeWidget(widget);

        comboBox->removeItem(index);
    }

    int MultiPageWidget::count() const
    {
        return stackWidget->count();
    }

    int MultiPageWidget::currentIndex() const
    {
        return stackWidget->currentIndex();
    }

    void MultiPageWidget::insertPage(int index, QWidget *page)
    {
        page->setParent(stackWidget);

        stackWidget->insertWidget(index, page);

        QString title = page->windowTitle();
        if (title.isEmpty()) {
            title = tr("Page %1").arg(comboBox->count() + 1);
            page->setWindowTitle(title);
        }
        comboBox->insertItem(index, title);
    }

    void MultiPageWidget::setCurrentIndex(int index)
    {
        if (index != currentIndex()) {
            stackWidget->setCurrentIndex(index);
            comboBox->setCurrentIndex(index);
            emit currentIndexChanged(index);
        }
    }

    QWidget* MultiPageWidget::widget(int index)
    {
        return stackWidget->widget(index);
    }

    QString MultiPageWidget::pageTitle() const
    {
        return stackWidget->currentWidget()->windowTitle();
    }

    void MultiPageWidget::setPageTitle(QString const &newTitle)
    {
        comboBox->setItemText(currentIndex(), newTitle);
        stackWidget->currentWidget()->setWindowTitle(newTitle);
        emit pageTitleChanged(newTitle);
    }