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Add row data tracking to C++ sixtyfps::Model

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This works the same way as in the Rust model notify.
This commit is contained in:
Simon Hausmann 2022-01-14 10:59:37 +01:00 • committed by Simon Hausmann
parent 43830ccd78
commit 6e3fcd1b08
2 changed files with 65 additions and 6 deletions
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29
api/sixtyfps-cpp/include/sixtyfps.h
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@ -487,24 +487,43 @@ public:
/// \private
/// Internal function called from within bindings to register with the currently
/// evaluating dependency and get notified when this model's row count changes.
void track_row_count_changes() { model_dirty_property.get(); }
void track_row_count_changes() { model_row_count_dirty_property.get(); }
/// \private
/// Internal function called from within bindings to register with the currently
/// evaluating dependency and get notified when this model's row data changes.
void track_row_data_changes(int row)
{
auto it = std::lower_bound(tracked_rows.begin(), tracked_rows.end(), row);
if (it == tracked_rows.end() || row < *it) {
tracked_rows.insert(it, row);
}
model_row_data_dirty_property.get();
}
protected:
/// Notify the views that a specific row was changed
void row_changed(int row)
{
if (std::binary_search(tracked_rows.begin(), tracked_rows.end(), row)) {
model_row_data_dirty_property.mark_dirty();
}
for_each_peers([=](auto peer) { peer->row_changed(row); });
}
/// Notify the views that rows were added
void row_added(int index, int count)
{
model_dirty_property.mark_dirty();
model_row_count_dirty_property.mark_dirty();
tracked_rows.clear();
model_row_data_dirty_property.mark_dirty();
for_each_peers([=](auto peer) { peer->row_added(index, count); });
}
/// Notify the views that rows were removed
void row_removed(int index, int count)
{
model_dirty_property.mark_dirty();
model_row_count_dirty_property.mark_dirty();
tracked_rows.clear();
model_row_data_dirty_property.mark_dirty();
for_each_peers([=](auto peer) { peer->row_removed(index, count); });
}
@ -524,7 +543,9 @@ private:
peers.end());
}
std::vector<private_api::ModelPeer> peers;
private_api::Property<bool> model_dirty_property;
private_api::Property<bool> model_row_count_dirty_property;
private_api::Property<bool> model_row_data_dirty_property;
std::vector<int> tracked_rows;
};
namespace private_api {