#ifndef JOYSTICK_H
#define JOYSTICK_H

#include <QWidget>
#include <QPainter>
#include <QMouseEvent>
#include <QtCore/qmath.h>
#include "QThread"
#include "QDebug"
#include "QPicture"

class JoyStick : public QWidget
{
    Q_OBJECT

public:

    enum { Max_Error = 0,
           Min_Error,
           Rate_Error,
           Dir_Error};

    enum {
        REVERSE = -1,
        NORMAL  = 1
    };



    explicit JoyStick(QWidget *parent = 0);
    ~JoyStick();


    void setValue(uint16_t ch,uint16_t value);
    void setRecovery(uint16_t ch,bool state);
    void setTrim(uint16_t ch,int16_t value);
    void setMaximum(uint16_t ch,uint16_t value);
    void setMinimum(uint16_t ch,uint16_t value);
    void setDirection(uint16_t ch, int8_t value);


signals:
    void error(uint16_t type);
    void positionChange(uint16_t channel0,uint16_t channel1);

protected:


    void mouseReleaseEvent(QMouseEvent *e);
    void mousePressEvent(QMouseEvent *e);
    void mouseMoveEvent(QMouseEvent *e);
    //void mouseDoubleClickEvent(QMouseEvent *e);
    //void wheelEvent(QWheelEvent *e);


    int16_t Limit(int16_t pos,int16_t min,int16_t max);

    void paintEvent(QPaintEvent *);

    void drawStick(QPainter*painter);

private:
    uint16_t m_channel[2] = {1500,1500};
    uint16_t m_trim[2] = {0,0};

    bool m_recovery[2] = {true,true};
    int8_t m_dir[2] = {NORMAL,NORMAL};//数据方向

    uint16_t m_max[2] = {1900,1900};
    uint16_t m_min[2] = {1100,1100};


    int16_t m_pos[2] = {0,0};

    QList<uint16_t> rcdata;

};

#endif // JOYSTICK_H