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

cannonfield.h Example File
tutorials/tutorial/t12/cannonfield.h

 /****************************************************************************
 **
 ** Copyright (C) 2005-2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
 **
 ** This file is part of the documentation of the Qt Toolkit.
 **
 ** Licensees holding a valid Qt License Agreement may use this file in
 ** accordance with the rights, responsibilities and obligations
 ** contained therein.  Please consult your licensing agreement or
 ** contact [email protected] if any conditions of this licensing
 ** agreement are not clear to you.
 **
 ** Further information about Qt licensing is available at:
 ** http://trolltech.com/products/appdev/licensing.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ****************************************************************************/

 #ifndef CANNON_H
 #define CANNON_H

 #include <QWidget>

 class QTimer;

 class CannonField : public QWidget
 {
     Q_OBJECT

 public:
     CannonField(QWidget *parent = 0);

     int angle() const { return currentAngle; }
     int force() const { return currentForce; }

 public slots:
     void setAngle(int angle);
     void setForce(int force);
     void shoot();
     void newTarget();

 private slots:
     void moveShot();

 signals:
     void hit();
     void missed();
     void angleChanged(int newAngle);
     void forceChanged(int newForce);

 protected:
     void paintEvent(QPaintEvent *event);

 private:
     void paintShot(QPainter &painter);
     void paintTarget(QPainter &painter);
     void paintCannon(QPainter &painter);
     QRect cannonRect() const;
     QRect shotRect() const;
     QRect targetRect() const;

     int currentAngle;
     int currentForce;

     int timerCount;
     QTimer *autoShootTimer;
     float shootAngle;
     float shootForce;

     QPoint target;
 };

 #endif