cannonfield.h

来自「qt-x11-opensource-src-4.1.4.tar.gz源码」· C头文件 代码 · 共 79 行

/****************************************************************************
**
** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
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** License version 2.0 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 GNU
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#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