cannonfield.h Example File
tutorial/t11/cannonfield.h
/****************************************************************************
**
** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** Licensees holding valid Qt Preview licenses may use this file in
** accordance with the Qt Preview License Agreement provided with the
** Software.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
** 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 CANNONFIELD_H
#define CANNONFIELD_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();
private slots:
void moveShot();
signals:
void angleChanged(int newAngle);
void forceChanged(int newForce);
protected:
void paintEvent(QPaintEvent *event);
private:
void paintShot(QPainter &painter);
void paintCannon(QPainter &painter);
QRect cannonRect() const;
QRect shotRect() const;
int currentAngle;
int currentForce;
int timerCount;
QTimer *autoShootTimer;
float shootAngle;
float shootForce;
};
#endif