Subclassing QLabel and use it in QWidget class - c++

Question

When i try to put QLabel in QWidget class its not work properly (no hover event or click event only the label pixmap is show) only the last instance work properly, when not use set parent, it create in new window for each label but its work correctly
this gif show the problem:
https://media.giphy.com/media/3o7TKKmZSISGXN4Opq/giphy.gif
this is QLabel subclass header:
#include <QObject>
#include <QLabel>
class myLabel : public QLabel
{
Q_OBJECT
public:
myLabel();
protected:
void mousePressEvent(QMouseEvent *);
void enterEvent(QEvent *);
void leaveEvent(QEvent *);
signals :
void labelClicked();
void enterSignal();
void leaveEventSignal();
private:
};
this class to make a labelButton:
#include <QObject>
#include <QWidget>
#include "mylabel.h"
class labelButton : public QWidget
{
Q_OBJECT
public:
labelButton();
//some functions
private slots:
//slots
private:
//private member
};
and this the class that i want to use the labelButtons in:
#include <QWidget>
#include "labelbutton.h"
namespace Ui {
class Widget;
}
class Widget : public QWidget
{
Q_OBJECT
public:
explicit Widget(QWidget *parent = 0);
~Widget();
private:
Ui::Widget *ui;
labelButton *b_1, *b_2, *b_3;
};
here is widget.cpp:
Widget::Widget(QWidget *parent) :
QWidget(parent),
ui(new Ui::Widget)
{
ui->setupUi(this);
b_1 = new labelButton;
b_1->setParent(this);
b_1->moveButton(70, 100);
//some functions to initialize the labelButton
b_1->show();
//-----------------------
b_2 = new labelButton;
b_2->setParent(this);
b_2->moveButton(70, 200);
//some functions to initialize the labelButton
b_2->show();
//-----------------------
b_3 = new labelButton;
b_3->setParent(this);
b_3->moveButton(70, 300);
//some functions to initialize the labelButton
b_3->show();
}

Answer 1

here its work, the problem was in passing the parent
i made a function that take a widget and set buttons parent from the function value
b_1 = new labelButton;
//b_1->setParent(this);
b_1->setParentFunc(this);
b_1->moveButton(70, 100);
//some functions to initialize the labelButton
// b_1->show();
in labelButton:
void labelButton::setParentFunc(QWidget *p)
{
myParent = p;
}
mLabel_1->setParent(myParent); // myParent instead of this