MousePressEvent and MouseReleaseEvent not Working in QT5.8

[Henson]

I'm have that header and method override implemented:

Header:

#ifndef ZoneFORM_H
#define ZoneFORM_H

#include <QDialog>
#include <QMouseEvent>
#include <QEvent>

QT_BEGIN_NAMESPACE
class QDataWidgetMapper;
class QDialogButtonBox;
class QComboBox;
class QLabel;
class QLineEdit;
class QPushButton;
class QSqlRelationalTableModel;
QT_END_NAMESPACE

enum {
Zone_Id = 0,
Zone_MinVol = 1,
Zone_MaxVol = 2,
Zone_Priority = 3,
Zone_ReservId = 4
};

class ZoneForm : public QDialog
{
Q_OBJECT

public:
ZoneForm(double mlimit, double maxrepvol, int reservid, int zoneid, QWidget *parent = 0);
void done(int result);

protected:
bool event(QEvent *event) override;

private slots:
void addZone();
void deleteZone();
void maxLimitValidate();
bool priorityValidate();

private:
QSqlRelationalTableModel *tableModel;
QDataWidgetMapper *mapper;
QLabel *minLimitLabel;
QLabel *maxLimitLabel;
QLabel *priorityLabel;
QLabel *repositoryLabel;
QComboBox *repositoryComboBox;
QLineEdit *minLimitEdit;
QLineEdit *maxLimitEdit;
QLineEdit *priorityEdit;
QPushButton *addButton;
QPushButton *deleteButton;
QPushButton *closeButton;
QDialogButtonBox *buttonBox;
double maxRepVol;
double mlimit;
double reservId;
double zoneId;
bool insertionMode;
};
#endif

Method overrided:
bool ZoneForm::event(QEvent event)
{
if (event->type() == QEvent::MouseButtonRelease ||
event->type() == QEvent::MouseButtonPress) {
QPushButton buttonSender = qobject_cast<QPushButton*>(sender());
qInfo("Entry on event general!!!");
if (buttonSender == closeButton) {
if (!priorityValidate()) {
event->ignore();
return false;
}
}
}
return QWidget::event(event);
}

I have attempted use directly mousePressEvent and mouseReleaseEvent but nothing here.
I'm working in projects on Ubuntu 16.04.
Any help is a plus for me. Thank you.

[Flotisable]

@Henson
do you mean that the program does not enter the if statement in ZoneForm::event()?

and I this you use the sender() in a wrong way.
from the document, it is 0 if not called by a slot that is activated by a signal, and event() is not a slot.

[jsulm]

@Henson To add to @Flotisable : why do you implement event handler if you're only interested in mouse press/release on your push buttons? QPushButton has pressed() and released() signals - just use those.