Home · All Namespaces · All Classes · Main Classes · Grouped Classes · Modules · Functions

view.h Example File
graphicsview/portedasteroids/view.h

 /****************************************************************************
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
 ** Contact: Qt Software Information ([email protected])
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial Usage
 ** Licensees holding valid Qt Commercial licenses may use this file in
 ** accordance with the Qt Commercial License Agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and Nokia.
 **
 ** 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 1.0, 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.
 **
 ** If you are unsure which license is appropriate for your use, please
 ** contact the sales department at [email protected].
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 /*
  * KAsteroids - Copyright (c) Martin R. Jones 1997
  *
  * Part of the KDE project
  */

 #ifndef __AST_VIEW_H__
 #define __AST_VIEW_H__

 #include <qwidget.h>
 #include <q3ptrlist.h>
 #include <q3intdict.h>
 #include <qtimer.h>
 #include <QGraphicsScene>
 #include <QGraphicsView>
 //Added by qt3to4:
 #include <QTimerEvent>
 #include <QShowEvent>
 #include <QResizeEvent>
 #include "sprites.h"

 #define MAX_POWER_LEVEL          1000

 class KAsteroidsView : public QWidget
 {
     Q_OBJECT
 public:
     KAsteroidsView( QWidget *parent = 0, const char *name = 0 );
     virtual ~KAsteroidsView();

     int refreshRate;

     void reset();
     void setRockSpeed( double rs ) { rockSpeed = rs; }
     void addRocks( int num );
     void newGame();
     void endGame();
     void newShip();

     void rotateLeft( bool r ) { rotateL = r; rotateSlow = 5; }
     void rotateRight( bool r ) { rotateR = r; rotateSlow = 5; }
     void thrust( bool t ) { thrustShip = t && shipPower > 0; }
     void shoot( bool s ) { shootShip = s; shootDelay = 0; }
     void setShield( bool s );
     void teleport( bool te) { teleportShip = te && mTeleportCount; }
     void brake( bool b );
     void pause( bool p);

     void showText( const QString &text, const QColor &color, bool scroll=TRUE );
     void hideText();

     int shots() const { return shotsFired; }
     int hits() const { return shotsHit; }
     int power() const { return shipPower; }

     int teleportCount() const { return mTeleportCount; }
     int brakeCount() const { return mBrakeCount; }
     int shieldCount() const { return mShieldCount; }
     int shootCount() const { return mShootCount; }

 signals:
     void shipKilled();
     void rockHit( int size );
     void rocksRemoved();
     void updateVitals();

 private slots:
     void hideShield();

 protected:
     bool readSprites();
     void wrapSprite( QGraphicsItem * );
     void rockHit( AnimatedPixmapItem * );
     void reducePower( int val );
     void addExhaust( double x, double y, double dx, double dy, int count );
     void processMissiles();
     void processShip();
     void processPowerups();
     void processShield();
     double randDouble();
     int randInt( int range );

     virtual void resizeEvent( QResizeEvent *event );
     virtual void timerEvent( QTimerEvent * );

     void showEvent( QShowEvent * );

 private:
     QGraphicsScene field;
     QGraphicsView view;
     QMap<int, QList<QPixmap> > animation;
     Q3PtrList<AnimatedPixmapItem> rocks;
     Q3PtrList<KMissile> missiles;
     Q3PtrList<KBit> bits;
     Q3PtrList<KExhaust> exhaust;
     Q3PtrList<KPowerup> powerups;
     KShield *shield;
     AnimatedPixmapItem *ship;
     QGraphicsTextItem *textSprite;

     bool rotateL;
     bool rotateR;
     bool thrustShip;
     bool shootShip;
     bool teleportShip;
     bool brakeShip;
     bool pauseShip;
     bool shieldOn;

     bool vitalsChanged;

     int  shipAngle;
     int  rotateSlow;
     int  rotateRate;
     int  shipPower;

     int shotsFired;
     int shotsHit;
     int shootDelay;

     int mBrakeCount;
     int mShieldCount;
     int mTeleportCount;
     int mShootCount;

     double shipDx;
     double shipDy;

     int  textDy;
     int  mFrameNum;
     bool mPaused;
     int  mTimerId;

     double rockSpeed;
     double powerupSpeed;

     bool can_destroy_powerups;

     QTimer *shieldTimer;
     bool initialized;
 };

 #endif