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configdialog.cpp Example File
^{dialogs/configdialog/configdialog.cpp}

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    ** Copyright (C) 2005-2006 Trolltech AS. All rights reserved.
    **
    ** This file is part of the documentation of the Qt Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License version 2.0 as published by the Free Software Foundation
    ** and appearing in the file LICENSE.GPL included in the packaging of
    ** this file.  Please review the following information to ensure GNU
    ** General Public Licensing requirements will be met:
    ** http://www.trolltech.com/products/qt/opensource.html
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    ** review the following information:
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    #include <QtGui>

    #include "configdialog.h"
    #include "pages.h"

    ConfigDialog::ConfigDialog()
    {
        contentsWidget = new QListWidget;
        contentsWidget->setViewMode(QListView::IconMode);
        contentsWidget->setIconSize(QSize(96, 84));
        contentsWidget->setMovement(QListView::Static);
        contentsWidget->setMaximumWidth(128);
        contentsWidget->setSpacing(12);

        pagesWidget = new QStackedWidget;
        pagesWidget->addWidget(new ConfigurationPage);
        pagesWidget->addWidget(new UpdatePage);
        pagesWidget->addWidget(new QueryPage);

        QPushButton *closeButton = new QPushButton(tr("Close"));

        createIcons();
        contentsWidget->setCurrentRow(0);

        connect(closeButton, SIGNAL(clicked()), this, SLOT(close()));

        QHBoxLayout *horizontalLayout = new QHBoxLayout;
        horizontalLayout->addWidget(contentsWidget);
        horizontalLayout->addWidget(pagesWidget, 1);

        QHBoxLayout *buttonsLayout = new QHBoxLayout;
        buttonsLayout->addStretch(1);
        buttonsLayout->addWidget(closeButton);

        QVBoxLayout *mainLayout = new QVBoxLayout;
        mainLayout->addLayout(horizontalLayout);
        mainLayout->addStretch(1);
        mainLayout->addSpacing(12);
        mainLayout->addLayout(buttonsLayout);
        setLayout(mainLayout);

        setWindowTitle(tr("Config Dialog"));
    }

    void ConfigDialog::createIcons()
    {
        QListWidgetItem *configButton = new QListWidgetItem(contentsWidget);
        configButton->setIcon(QIcon(":/images/config.png"));
        configButton->setText(tr("Configuration"));
        configButton->setTextAlignment(Qt::AlignHCenter);
        configButton->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);

        QListWidgetItem *updateButton = new QListWidgetItem(contentsWidget);
        updateButton->setIcon(QIcon(":/images/update.png"));
        updateButton->setText(tr("Update"));
        updateButton->setTextAlignment(Qt::AlignHCenter);
        updateButton->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);

        QListWidgetItem *queryButton = new QListWidgetItem(contentsWidget);
        queryButton->setIcon(QIcon(":/images/query.png"));
        queryButton->setText(tr("Query"));
        queryButton->setTextAlignment(Qt::AlignHCenter);
        queryButton->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);

        connect(contentsWidget,
                SIGNAL(currentItemChanged(QListWidgetItem *, QListWidgetItem *)),
                this, SLOT(changePage(QListWidgetItem *, QListWidgetItem*)));
    }

    void ConfigDialog::changePage(QListWidgetItem *current, QListWidgetItem *previous)
    {
        if (!current)
            current = previous;

        pagesWidget->setCurrentIndex(contentsWidget->row(current));
    }