graphicsscene.h Example File

 /****************************************************************************
 **
 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
 ** Contact: http://www.qt-project.org/
 **
 ** This file is part of the QtCore module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** GNU Lesser General Public License Usage
 ** 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.
 **
 ** 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 ensure the GNU General
 ** Public License version 3.0 requirements will be met:
 ** http://www.gnu.org/copyleft/gpl.html.
 **
 ** Other Usage
 ** Alternatively, this file may be used in accordance with the terms and
 ** conditions contained in a signed written agreement between you and Nokia.
 **
 **
 **
 **
 **
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #ifndef __GRAPHICSSCENE__H__
 #define __GRAPHICSSCENE__H__

 //Qt
 #include <QtWidgets/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
 {
 Q_OBJECT
 public:
     enum Mode {
         Big = 0,
         Small
     };

     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();

 signals:
     void subMarineDestroyed(int);
     void allSubMarineDestroyed(int);

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

 private:
     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__