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save expansion state

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ouwou 2024-01-14 20:25:50 -05:00
parent 960da872bb
commit 7c8e91169e
1 changed files with 17 additions and 0 deletions
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17
src/components/channellist/channellisttree.cpp
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@ -691,6 +691,23 @@ void ChannelListTree::UseExpansionState(const ExpansionStateRoot &root) {
ExpansionStateRoot ChannelListTree::GetExpansionState() const {
ExpansionStateRoot r;
auto recurse = [this](auto &self, const Gtk::TreeRow &row) -> ExpansionState {
ExpansionState r;
r.IsExpanded = row[m_columns.m_expanded];
for (auto child : row.children()) {
r.Children.Children[static_cast<Snowflake>(child[m_columns.m_id])] = self(self, child);
}
return r;
};
for (auto child : m_model->children()) {
const auto id = static_cast<Snowflake>(child[m_columns.m_id]);
if (static_cast<uint64_t>(id) == 0ULL) continue; // dont save DM header
r.Children[id] = recurse(recurse, child);
}
return r;
}