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qwt-5.1.1/examples/dials/attitude_indicator.h

 

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#include <qwt_dial.h>

 

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#include <qwt_dial_needle.h>

 

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class AttitudeIndicatorNeedle: public QwtDialNeedle

 

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{

 

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public:

 

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    AttitudeIndicatorNeedle(const QColor &);

 

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    virtual void draw(QPainter *, const QPoint &, int length,

 

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        double direction, QPalette::ColorGroup) const;

 

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};

 

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class AttitudeIndicator: public QwtDial

 

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{

 

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    Q_OBJECT

 

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public:

 

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    AttitudeIndicator(QWidget *parent = NULL);

 

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    double angle() const { return value(); }

 

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    double gradient() const { return d_gradient; }

 

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public slots:

 

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    void setGradient(double);

 

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    void setAngle(double angle) { setValue(angle); }

 

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protected:

 

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    virtual void keyPressEvent(QKeyEvent *);

 

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    virtual void drawScale(QPainter *, const QPoint &center,

 

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        int radius, double origin, double arcMin, double arcMax) const;

 

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    virtual void drawScaleContents(QPainter *painter,

 

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        const QPoint &center, int radius) const;

 

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private:

 

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    double d_gradient;

 

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};

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