VirtualJoystick.h

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#ifndef _VIRTUAL_JOYSTICK_WIDGET_H
#define _VIRTUAL_JOYSTICK_WIDGET_H

#include <QtGui>
#include <cstring>

class VirtualJoystick : public QWidget {

    Q_OBJECT

    public:

    VirtualJoystick(QWidget *parent, const std::string &name);
    ~VirtualJoystick();

    signals:
    // axis 1, axis 2 
    void axisChanged(double, double); 

    private:
    bool filled;

    void focus(bool in);

    QPointF calculateAxis(bool active);
    
    void mouseMoveEvent(QMouseEvent* event);
    void mousePressEvent(QMouseEvent* event);
    void mouseReleaseEvent(QMouseEvent* event);
    void timerEvent(QTimerEvent* event);
    void paintEvent(QPaintEvent* event);
    void paintBase(QPainter &painter);
    void paintStick(QPainter &painter);
    void paintCross(QPainter &painter);

    void drawMouseRects(QPainter &painter);
    void calculateCoordinates(void);

    double distance(QPointF A, QPointF B);
    double angle(QPointF A, QPointF B);

    QPointF mousePosition;
    double painterAngle;
    QPointF painterCenter;
    QPointF widgetCenter;
    QPointF axisValues;
    
    QLinearGradient baseGrad;
    QColor baseColor;
    double height, maxHeight;
    bool followMouse;
    bool pressed;

    QLabel *title;
    QLabel *axis1;
    QLabel *axis2;
    QLabel *str_title;
};

#endif // _JOYSTICK_WIDGET_H