[ HasEmitter ]
public virtual signal void apply_attributes (TreeModel tree_model, TreeIter iter, bool is_expander, bool is_expanded)
This signal is emitted whenever applying attributes to area from model
| iter |
the `GtkTreeIter` indicating which row to apply the attributes of |
| is_expander |
whether the view shows children for this row |
| is_expanded |
whether the view is currently showing the children of this row |
| model |
the `GtkTreeModel` to apply the attributes from |