Qt 4.0: mainwindow.cpp Example File (linguist/trollprint/mainwindow.cpp)

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# mainwindow.cpp Example File
linguist/trollprint/mainwindow.cpp

        /****************************************************************************
        **
        ** Copyright (C) 2005-2005 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
    **
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://www.trolltech.com/products/qt/licensing.html or contact the
    ** sales department at sales@trolltech.com.
        **
        ** 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 "mainwindow.h"
        #include "printpanel.h"

        MainWindow::MainWindow()
        {
            printPanel = new PrintPanel;
            setCentralWidget(printPanel);

            createActions();
            createMenus();

            setWindowTitle(tr("Troll Print 1.0"));
        }

        void MainWindow::about()
        {
            QMessageBox::information(this, tr("About Troll Print 1.0"),
                           tr("Troll Print 1.0.\n\n"
                              "Copyright 1999 Software, Inc."));
        }

        void MainWindow::createActions()
        {
            exitAct = new QAction(tr("E&xit"), this);
            exitAct->setShortcut(tr("Ctrl+Q", "Quit"));
            connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));

            aboutAct = new QAction(tr("&About"), this);
            aboutAct->setShortcut(Qt::Key_F1);
            connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));

            aboutQtAct = new QAction(tr("About &Qt"), this);
            connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
        }

        void MainWindow::createMenus()
        {
            QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
            fileMenu->addAction(exitAct);

            menuBar()->addSeparator();

            QMenu *helpMenu = menuBar()->addMenu(tr("&Help"));
            helpMenu->addAction(aboutAct);
            helpMenu->addAction(aboutQtAct);
        }