Q_PROPERTY 自定义属性不生效

发现一个问题，当自定义属性的类，不加Q_OBJECT，那么此类的自定义属性，不能被外界更改使用

class COnlyPushNormalBtn : public QPushButton
{
    Q_OBJECT //发现必须要加这个宏
    Q_PROPERTY(bool isJogMode READ getIsJogMode WRITE setIsJogMode DESIGNABLE true)
    Q_PROPERTY(bool fixMoveChecked READ getFixMoveChecked WRITE setFixMoveChecked DESIGNABLE true)
public:
    COnlyPushNormalBtn(QWidget *parent = nullptr);
    bool getIsJogMode() const;
    void setIsJogMode(bool value);
    bool getFixMoveChecked() const;
    void setFixMoveChecked(bool value);
protected:
    virtual void mousePressEvent(QMouseEvent *event) override;
    virtual void mouseReleaseEvent(QMouseEvent *event) override;
private:
    bool isJogMode;//是否是点动按钮模式：鼠标点击按下，松开弹起
    bool fixMoveChecked;//定长运动时，是否按下
};

#include "conlypushnormalbtn.h"

COnlyPushNormalBtn::COnlyPushNormalBtn(QWidget *parent):QPushButton(parent),
  isJogMode(true),
  fixMoveChecked(false)
{
}

bool COnlyPushNormalBtn::getIsJogMode() const
{
    return isJogMode;
}

void COnlyPushNormalBtn::setIsJogMode(bool value)
{
    if(value && (isJogMode!=value)){//从定长运动切换到点动模式
        this->setAttribute(Qt::WA_TransparentForMouseEvents,false);
        this->setChecked(false);
        this->setCheckable(false);
        fixMoveChecked = false;
    }else if(!value && (isJogMode!=value)){//从点动切换到定长运动
        this->setCheckable(true);
    }
    isJogMode = value;
}

void COnlyPushNormalBtn::mousePressEvent(QMouseEvent *event)
{
    QPushButton::mousePressEvent(event);
}

void COnlyPushNormalBtn::mouseReleaseEvent(QMouseEvent *event)
{
    QPushButton::mouseReleaseEvent(event);
    if(!isJogMode){
        fixMoveChecked = true;
        this->setAttribute(Qt::WA_TransparentForMouseEvents,true);
    }
}

bool COnlyPushNormalBtn::getFixMoveChecked() const
{
    return fixMoveChecked;
}

void COnlyPushNormalBtn::setFixMoveChecked(bool value)
{
    if(!isJogMode){
        this->setChecked(value);
        this->setAttribute(Qt::WA_TransparentForMouseEvents, value);
        fixMoveChecked = value;
    }
}

执行操作的地方：这个使用个状态机

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    ui->pushButton->setIsJogMode(!ui->pushButton->getIsJogMode());

    connect(ui->btnCMD,&QPushButton::clicked,this,[=](){
        ui->pushButton->setFixMoveChecked(!ui->pushButton->getFixMoveChecked());
    });
connect(ui->btnCheckable,&QPushButton::pressed,this,[=](){ui->pushButton->setIsJogMode(!ui->pushButton->getIsJogMode());});

    macine = new QStateMachine(this);
    QState *state1 = new QState(macine);
    QState *state2 = new QState(macine);
    macine->setInitialState(state1);
    state1->assignProperty(ui->pushButton,"fixMoveChecked",false);//就是这个状态，当切换状态是，更改相应的属性
    state1->assignProperty(ui->pushButton,"text","1");
    state2->assignProperty(ui->pushButton,"fixMoveChecked",true);//
    state2->assignProperty(ui->pushButton,"text","2");
    state1->addTransition(ui->btnDown,&QPushButton::pressed,state2);
    state2->addTransition(ui->btnDown,&QPushButton::pressed,state1);
    macine->start();
}