Getting the right click signal from a custom button

[doubitchou]

hi, the following code creates a Qbuttongroup and an event when left clicking on each button.
There should be different events for right clicks I want to to catch with an event where to put some code as C++ (not stylesheet), and while I use the same sender than for the left click, the event never rise why ?

GuiMatrix::GuiMatrix(uint Rows, uint Cols, quint32 Led_colors, QWidget * parentWidget, QVector< QPair<QString, QRgb> >& ColorsList )
    : MatxRows(Rows),
      MatxCols(Cols),
      GUIMtx_BtnColorsArray(MatxRows * MatxCols, BTNCOLOR_GREY),
      Palette()
{
    setParent(parentWidget)  ;

    QVBoxLayout *layout     = new QVBoxLayout()                             ;
    QHBoxLayout *Hlayout    = new QHBoxLayout()                                         ;
    Glayout    = new QGridLayout()                                         ;
    Glayout->setSpacing(0)                                                              ;
    Hlayout->addStretch(1)                                                              ;
    Hlayout->addLayout(Glayout)                                                         ;
    Hlayout->addStretch(1)                                                              ;
    layout->addLayout(Hlayout)                                                          ;
    layout->addStretch(1)                                                               ;

    Populate(Glayout,Rows,Cols);
    if ( ColorsList.size() ==0 )
    {
        for (uint ind; ind <Led_colors; ind++)
            Palette[ind]= ind ;
    }
    else
    {
         for (auto iter: ColorsList )
         {
            Palette<< iter.second ;
          }
    }

    parentWidget->setLayout(layout)                                                     ;
    connect(this , SIGNAL(buttonClicked(QAbstractButton*)),this,SLOT(buttonClick(QAbstractButton*)));

    // This is not working 
connect(this , SIGNAL(rightClicked()),this,SLOT(rightClicked()));
}


void GuiMatrix::Populate(QGridLayout *layout, const int rows, const int cols)
{
    for ( int i = 0; i < rows; ++ i)
    {
        for ( int j = 0; j < cols; ++j)
        {
            MatrixButton *btn= new MatrixButton();
            btn->setFixedWidth(20);
            btn->setStyleSheet("QPushButton{background-color:#A0A0A0;}"
                               "QPushButton[_rightClicked = true]{background-color:#A0A0A0;}")      ;

            layout->addWidget(btn,i,j)                                ;

            this->addButton(btn)                              ;
        }
    }
}

void GuiMatrix::rightClicked()
{
    qDebug() <<"right click" ;
}


void GuiMatrix::buttonClick(QAbstractButton* button)
{
    int BtnID= abs(this->id(button)) -2 ;

    QRgb BtnColorValue = GUIMtx_BtnColorsArray[BtnID];

    int indexPalette = Palette.indexOf(BtnColorValue) ;

    if (BtnColorValue == BTNCOLOR_GREY)                                // The 1st time the let button is grey (off)
        GUIMtx_BtnColorsArray[BtnID]= Palette.first() ;
    else if (indexPalette != -1 )                                      // we have found the color in the list
    {
        if ( Palette[indexPalette] == Palette.last() )
            GUIMtx_BtnColorsArray[BtnID]= Palette.first() ;
        else
            GUIMtx_BtnColorsArray[BtnID]= Palette[++indexPalette] ;
    }
    else
        qDebug() << "buttonClick problem, the color is not in the Palette list: " <<BtnColorValue ; // if not: there is a problem


    BtnColorValue = GUIMtx_BtnColorsArray[BtnID] ;
    QString ColorString = "QPushButton{background-color: " +   QString("#%1").arg(BtnColorValue, 6, 16, QLatin1Char( '0' ))  + ";} "
                          "QPushButton[_rightClicked = true]{background-color:#A0A0A0;} ";

    button->setStyleSheet(ColorString)  ;
}

The right clicked event is coming for the emit in the base class :

#ifndef MATRIXBUTTON_H
#define MATRIXBUTTON_H

#include <QPushButton>
#include <QMouseEvent>
#include <QStyle>

class MatrixButton : public QPushButton
{
    Q_OBJECT
    Q_PROPERTY(bool _rightClicked READ wasRightClicked WRITE changeState)

public:
    explicit MatrixButton(QWidget * parent = 0) : QPushButton(parent){}
    ~MatrixButton(){}

    bool wasRightClicked(){return _rightClicked;}

public slots:
    void changeState(bool b)
    {
        _rightClicked = b;
        style()->unpolish(this);
        style()->polish(this);
    }

signals:
    void rightClicked();

protected:

    virtual void mousePressEvent(QMouseEvent *e)
    Q_DECL_OVERRIDE
    {
        if(e->button() == Qt::RightButton)
        {
            emit rightClicked();
            changeState(true);
        }
        else
        {
            changeState(false);
        }
        QPushButton::mousePressEvent(e);

    }
private:
    bool _rightClicked = false;
};

#endif // MATRIXBUTTON_H