QComboboox with treeview and custom event handler

[arsinte_andrei]

this is what I have so far
@#ifndef ATPTREECOMBOBOX_H
#define ATPTREECOMBOBOX_H

#include "atpTreeComboBoxView.h"
#include <QApplication>
#include <QtGui>
#include <QTreeView>
#include <QHeaderView>
#include <QComboBox>

class atpTreeComboBox : public QComboBox {
public:
atpTreeComboBox(QWidget* parent = 0) : QComboBox(parent), skipNextHide(false) {
//atpTreeComboBoxView *atpTreeView = new atpTreeComboBoxView(this);
setView(atpTreeView);
view()->viewport()->installEventFilter(this);
}

bool eventFilter(QObject* object, QEvent* event) {
if (event->type() == QEvent::MouseButtonPress && object == view()->viewport()) {
QMouseEvent* mouseEvent = static_cast<QMouseEvent*>(event);
QModelIndex index = view()->indexAt(mouseEvent->pos());
if (!view()->visualRect(index).contains(mouseEvent->pos()))
skipNextHide = true;
}
return false;
}

virtual void showPopup() {
setMaxVisibleItems(10);
setRootModelIndex(QModelIndex());
QComboBox::showPopup();
}

virtual void hidePopup() {
//setRootModelIndex(view()->currentIndex().parent());
//setCurrentIndex(view()->currentIndex().row());
if (skipNextHide)
skipNextHide = false;
else
QComboBox::hidePopup();
}

private:
bool skipNextHide;
};

#endif // ATPTREECOMBOBOX_H
@

but I wish to be able to add the view not in the class because when I add a model to it it will not hide the columns
so i have a QStandardItemModel with 3 columns and i wish to display only one.
on the qtreeview is displaying corecly
but when i set the same view to my atpCombobox it will not display corecly and also it won't take in account the event handler.

I wish to be able to send the view as an argument and to keep event filter and show and hide popup working
even if i set a new view (so without set it up in the class - the class to receive the view as an argument)
@
QStandardItemModel *m = new QStandardItemModel(this);
m->setColumnCount(3);
m->setHeaderData(0, Qt::Horizontal,"Name");
m->setHeaderData(1, Qt::Horizontal,"ID");
m->setHeaderData(2, Qt::Horizontal,"Parent");
QtreeView comboView = new QTreeView(this);

mycombo = new atpTreeComboBox(this, comboView);
mycombo->setModel(m);
mycombo->setView(comboView );
mycombo->setGeometry(90,100,330,22);
mycombo->show();
mycombo->setMaxVisibleItems(10);
@

any help will apreciate a lot