| 70 | } |
| 71 | |
| 72 | virtual ModelIndex parent( const ModelIndex& index ) const { |
| 73 | if ( !index.isValid() ) |
| 74 | return {}; |
| 75 | Node* node = static_cast<Node*>( index.internalData() ); |
| 76 | if ( node->parent == mRoot || node->parent == nullptr ) |
| 77 | return {}; |
| 78 | Node* grandParent = node->parent->parent; |
| 79 | if ( !grandParent ) |
| 80 | return {}; |
| 81 | // Find row of parent in grandparent's visible children |
| 82 | auto it = std::find( grandParent->visibleChildren.begin(), |
| 83 | grandParent->visibleChildren.end(), node->parent ); |
| 84 | if ( it != grandParent->visibleChildren.end() ) { |
| 85 | int row = std::distance( grandParent->visibleChildren.begin(), it ); |
| 86 | return createIndex( row, 0, node->parent ); |
| 87 | } |
| 88 | return {}; |
| 89 | } |
| 90 | |
| 91 | virtual Variant data( const ModelIndex& index, ModelRole role = ModelRole::Display ) const override { |
| 92 | if ( !index.isValid() ) |