cellSetCellData
open fun cellSetCellData(treeModel: TreeModel, iter: TreeIter, isExpander: Boolean, isExpanded: Boolean)
Sets the cell renderer based on the @tree_model and @iter. That is, for every attribute mapping in @tree_column, it will get a value from the set column on the @iter, and use that value to set the attribute on the cell renderer. This is used primarily by the GtkTreeView.
Parameters
treeModel
The GtkTreeModel to get the cell renderers attributes from.
iter
The GtkTreeIter to get the cell renderer’s attributes from.
isExpander
true, if the row has children
isExpanded
true, if the row has visible children