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# mainwindow.cpp Example File

demos/sub-attaq/mainwindow.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2015 The Qt Company Ltd.
     ** Contact: http://www.qt.io/licensing/
     **
     ** This file is part of the QtCore module of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:LGPL$
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     ** GNU Lesser General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU Lesser
     ** General Public License version 2.1 or version 3 as published by the Free
     ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
     ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
     ** following information to ensure the GNU Lesser General Public License
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     ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
     **
     ** GNU General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU
     ** General Public License version 3.0 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
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     ****************************************************************************/

     //Own
     #include "mainwindow.h"
     #include "graphicsscene.h"

     //Qt
     #include <QGraphicsView>

     #ifdef QT_NO_OPENGL
         #include <QtGui/QMenuBar>
         #include <QtGui/QLayout>
         #include <QtGui/QApplication>
     #else
         #include <QtOpenGL/QtOpenGL>
     #endif

     MainWindow::MainWindow() : QMainWindow(0)
     {
         QMenu *file = menuBar()->addMenu(tr("&File"));

         QAction *newAction = file->addAction(tr("New Game"));
         newAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_N));
         QAction *quitAction = file->addAction(tr("Quit"));
         quitAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_Q));

         if (QApplication::arguments().contains("-fullscreen")) {
             scene = new GraphicsScene(0, 0, 750, 400, GraphicsScene::Small);
             setWindowState(Qt::WindowFullScreen);
         } else {
             scene = new GraphicsScene(0, 0, 880, 630);
             layout()->setSizeConstraint(QLayout::SetFixedSize);
         }

         view = new QGraphicsView(scene, this);
         view->setAlignment(Qt::AlignLeft | Qt::AlignTop);
         scene->setupScene(newAction, quitAction);
     #ifndef QT_NO_OPENGL
         view->setViewport(new QGLWidget(QGLFormat(QGL::SampleBuffers)));
     #endif

         setCentralWidget(view);
     }