headerItem->setIcon(1, myInvisible);
theTreeObjects->setHeaderItem(headerItem);
theTreeObjects->header()->moveSection(1, 0);
headerItem->setIcon(1, myInvisible);
theTreeObjects->setHeaderItem(headerItem);
theTreeObjects->header()->moveSection(1, 0);
theTreeObjects->header()->setClickable(true);
theTreeObjects->header()->setMovable(false);
theTreeObjects->header()->setResizeMode( 1, QHeaderView::ResizeToContents);
theTreeObjects->header()->setClickable(true);
theTreeObjects->header()->setMovable(false);
theTreeObjects->header()->setResizeMode( 1, QHeaderView::ResizeToContents);
theTreeObjects->setSelectionMode(QAbstractItemView::ExtendedSelection);
theTreeObjects->setEditTriggers(QAbstractItemView::DoubleClicked | QAbstractItemView::EditKeyPressed);
// set custom item delegate
theTreeObjects->setSelectionMode(QAbstractItemView::ExtendedSelection);
theTreeObjects->setEditTriggers(QAbstractItemView::DoubleClicked | QAbstractItemView::EditKeyPressed);
// set custom item delegate