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# main.cpp Example File
sql/querymodel/main.cpp

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        **
        ** This file is part of the documentation of the Qt Toolkit.
        **
        ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
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    ** information about Qt Commercial License Agreements.
    ** See http://www.trolltech.com/gpl/ for GPL licensing information.
    **
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    ** not clear to you.
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        ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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        #include <QtGui>

        #include "../connection.h"
        #include "customsqlmodel.h"
        #include "editablesqlmodel.h"

        void initializeModel(QSqlQueryModel *model)
        {
            model->setQuery("select * from person");
            model->setHeaderData(0, Qt::Horizontal, QObject::tr("ID"));
            model->setHeaderData(1, Qt::Horizontal, QObject::tr("First name"));
            model->setHeaderData(2, Qt::Horizontal, QObject::tr("Last name"));
        }

        void createView(const QString &title, QSqlQueryModel *model)
        {
            static int offset = 0;

            QTableView *view = new QTableView;
            view->setModel(model);
            view->setWindowTitle(title);
            view->move(100 + offset, 100 + offset);
            offset += 20;
            view->show();
        }

        int main(int argc, char *argv[])
        {
            QApplication app(argc, argv);
            if (!createConnection())
                return 1;

            QSqlQueryModel plainModel;
            EditableSqlModel editableModel;
            CustomSqlModel customModel;

            initializeModel(&plainModel);
            initializeModel(&editableModel);
            initializeModel(&customModel);

            createView(QObject::tr("Plain Query Model"), &plainModel);
            createView(QObject::tr("Editable Query Model"), &editableModel);
            createView(QObject::tr("Custom Query Model"), &customModel);

            return app.exec();
        }