Function applyLeafSelectability

pj_widgets/src/CurveTreeView.cpp:168–175

Flags for a curve leaf. A draggable leaf is a normal drag source; a value-only leaf (string field) stays selectable/highlightable but is never dragged and is tagged so the selection collectors leave it out of the drag payload.

// leaf (string field) stays selectable/highlightable but is never dragged and is
// tagged so the selection collectors leave it out of the drag payload.
void applyLeafSelectability(QTreeWidgetItem* item, bool draggable) {
  if (draggable) {
    item->setFlags(item->flags() | Qt::ItemIsDragEnabled | Qt::ItemIsSelectable);
    return;
  }
  item->setData(kNameColumn, kValueOnlyRole, true);
  item->setFlags((item->flags() | Qt::ItemIsSelectable) & ~Qt::ItemIsDragEnabled);
}

QString catalogKeyForItem(const QTreeWidgetItem* item) {
  if (item == nullptr) {