| 70 | } |
| 71 | |
| 72 | QString sortKeyForItem(const QTreeWidgetItem& item) { |
| 73 | const QString cached_key = item.data(kNameColumn, kSortKeyRole).toString(); |
| 74 | if (!cached_key.isEmpty() || item.text(kNameColumn).isEmpty()) { |
| 75 | return cached_key; |
| 76 | } |
| 77 | return item.text(kNameColumn).toCaseFolded(); |
| 78 | } |
| 79 | |
| 80 | class CurveTreeItem : public QTreeWidgetItem { |
| 81 | public: |