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LibGUI/TreeView: Select parent on collapse
When collapsing a tree that contains the current selection, the parent node becomes selected instead.
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3 changed files with 16 additions and 0 deletions
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@ -19,6 +19,17 @@ Variant ModelIndex::data(ModelRole role) const
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return model()->data(*this, role);
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}
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bool ModelIndex::is_parent_of(const ModelIndex& child) const
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{
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auto current_index = child.parent();
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while (current_index.is_valid()) {
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if (current_index == *this)
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return true;
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current_index = current_index.parent();
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}
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return false;
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}
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ModelIndex ModelIndex::sibling(int row, int column) const
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{
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if (!is_valid())
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