Method onUpClicked

Gui/ManageUserParamsDialog.cpp:567–625

}

void
ManageUserParamsDialog::onUpClicked()
{
    QList<QTreeWidgetItem*> selection = _imp->tree->selectedItems();
    if ( selection.empty() ) {
        return;
    }
    QTreeWidgetItem* selectedItem = selection.front();
    for (std::list<TreeItem>::iterator it = _imp->items.begin(); it != _imp->items.end(); ++it) {
        if (it->item == selectedItem) {
            QTreeWidgetItem* parent = 0;
            KnobIPtr parentKnob;
            if (it->knob) {
                parentKnob = it->knob->getParentKnob();
            }
            if (parentKnob) {
                for (std::list<TreeItem>::iterator it = _imp->items.begin(); it != _imp->items.end(); ++it) {
                    if (it->knob == parentKnob) {
                        parent = it->item;
                        break;
                    }
                }
            }

            int index;
            if (!parent) {
                index = _imp->tree->indexOfTopLevelItem(it->item);
            } else {
                index = parent->indexOfChild(it->item);
            }
            if (index == 0) {
                break;
            }

            if ( !it->knob || !_imp->panel->getHolder()->moveKnobOneStepUp( it->knob.get() ) ) {
                return;
            }
            QList<QTreeWidgetItem*> children = it->item->takeChildren();
            delete it->item;

            KnobIPtr knob = it->knob;
            //invalidates iterator
            _imp->items.erase(it);

            QTreeWidgetItem* item = _imp->createItemForKnob(knob, index - 1);
            item->insertChildren(0, children);
            _imp->saveAndRebuildPages();
            QItemSelectionModel* model = _imp->tree->selectionModel();
            model->select(_imp->tree->indexFromItemPublic(item), QItemSelectionModel::ClearAndSelect);

            KnobPagePtr isPage = std::dynamic_pointer_cast<KnobPage>(knob);
            if (isPage) {
                _imp->panel->setPageActiveIndex(isPage);
            }

            break;
        }
    }