Custom item widgets are flat.

I have a class which is custom widget for QTableWidgetItem. Using Qt 4.8 everything was OK, but in Qt 5.2.1 there is a problem.

My widget class:

Code:

---

class QTableCalendarWidget: public QWidget
{
    Q_OBJECT
public:
    QTableCalendarWidget(QString ToolTip,bool Ev,bool BDay)
    {
        Date=QDate::fromString(ToolTip,"d/MM/yyyy");
        Event=new QLabel(this);
        Birth=new QLabel(this);
        Label=new QLabel(QString::number(Date.day()),this);
        Add=new QPushButton(this);
        QPixmap w=QPixmap(12,12);
        w.fill(Qt::transparent);
        if(Ev)
        {
            Event->setPixmap(QIcon(":/cal/Ev").pixmap(15));
        }
        else
        {
            Event->setPixmap(w);
        }
        if(BDay)
        {
            Birth->setPixmap(QIcon(":/cal/BDay").pixmap(15));
        }
        else
        {
            Birth->setPixmap(w);
        }
        Label->setAlignment(Qt::AlignHCenter);
        Add->setStyleSheet("QPushButton {border: 0px solid white;}");
        Add->setIcon(QIcon(w));
        Add->setDisabled(true);
        connect(Add,SIGNAL(clicked()),this,SLOT(addIN()));
        QHBoxLayout *Layout=new QHBoxLayout();
        Layout->setSpacing(1);
        Layout->addWidget(Event);
        Layout->addWidget(Birth);
        Layout->addWidget(Label,Qt::AlignHCenter);
        Layout->addWidget(Add);
        this->setLayout(Layout);
    }
    void AddB()
    {
        Add->setEnabled(true);
        Add->setIcon(QIcon(QIcon(":/main/Add").pixmap(12,12)));
    }
private:
    QDate Date;
    QLabel *Event;
    QLabel *Birth;
    QLabel *Label;
    QPushButton *Add;
private slots:
    void addIN()
    {
        emit addOUT(Date);
    }
signals:
    void addOUT(QDate);
};

---

I am setting widget this way:

Code:

---

QTableCalendarWidget *Day=new QTableCalendarWidget(Items[i]->toolTip(),Ev,Bd);
            Calendar->setCellWidget(Items[i]->row(),Items[i]->column(),Day);

---

Where Items[i] is QTableWidgetItem already added to QTableWidget, with date as a ToolTip.

The appearance:Attachment 10339

As all of you can see the custom widget is flat. Standard QTableWidgetItem is visible normally.

What do you mean by "the custom widget is flat"?

The widget is 1 px high. In previous version widget height was a cell height. Is there any way of changing it without calling resize()? Resizing cause that text is out of cell.