Qt Reference Documentation

graphicsscene.h Example File

 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 ** This file is part of the QtCore module of the Qt Toolkit.
 ** No Commercial Usage
 ** This file contains pre-release code and may not be distributed.
 ** You may use this file in accordance with the terms and conditions
 ** contained in the Technology Preview License Agreement accompanying
 ** this package.
 ** 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 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.LGPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU Lesser General Public License version 2.1 requirements
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 ** In addition, as a special exception, Nokia gives you certain additional
 ** rights.  These rights are described in the Nokia Qt LGPL Exception
 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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 #ifndef __GRAPHICSSCENE__H__
 #define __GRAPHICSSCENE__H__

 #include <QtGui/QGraphicsScene>
 #include <QtCore/QSet>
 #include <QtCore/QState>

 class Boat;
 class SubMarine;
 class Torpedo;
 class Bomb;
 class PixmapItem;
 class ProgressItem;
 class TextInformationItem;
 class QAction;

 class GraphicsScene : public QGraphicsScene
     enum Mode {
         Big = 0,

     struct SubmarineDescription {
         int type;
         int points;
         QString name;

     struct LevelDescription {
         int id;
         QString name;
         QList<QPair<int,int> > submarines;

     GraphicsScene(int x, int y, int width, int height, Mode mode = Big);
     qreal sealLevel() const;
     void setupScene(QAction *newAction, QAction *quitAction);
     void addItem(Bomb *bomb);
     void addItem(Torpedo *torpedo);
     void addItem(SubMarine *submarine);
     void addItem(QGraphicsItem *item);
     void clearScene();

     void subMarineDestroyed(int);
     void allSubMarineDestroyed(int);

 private slots:
     void onBombExecutionFinished();
     void onTorpedoExecutionFinished();
     void onSubMarineExecutionFinished();

     Mode mode;
     ProgressItem *progressItem;
     TextInformationItem *textInformationItem;
     Boat *boat;
     QSet<SubMarine *> submarines;
     QSet<Bomb *> bombs;
     QSet<Torpedo *> torpedos;
     QVector<SubmarineDescription> submarinesData;
     QHash<int, LevelDescription> levelsData;

     friend class PauseState;
     friend class PlayState;
     friend class LevelState;
     friend class LostState;
     friend class WinState;
     friend class WinTransition;
     friend class UpdateScoreTransition;

 #endif //__GRAPHICSSCENE__H__

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