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cannonfield.h Example File
tutorial/t10/cannonfield.h

    /****************************************************************
    **
    ** Definition of CannonField class, Qt tutorial 10
    **
    ****************************************************************/

    #ifndef CANNON_H
    #define CANNON_H

    #include <QWidget>

    class CannonField : public QWidget
    {
        Q_OBJECT

    public:
        CannonField(QWidget *parent = 0);

        int angle() const { return ang; }
        int force() const { return f; }

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

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

    protected:
        void paintEvent(QPaintEvent *event);

    private:
        QRect cannonRect() const;

        int ang;
        int f;
    };

    #endif // CANNON_H


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Qt 4.0.0-b2