Trait gtk4::prelude::TreeModelFilterExtManual[][src]

pub trait TreeModelFilterExtManual: 'static {
    fn set_modify_func<F: Fn(&TreeModel, &TreeIter, i32) -> Value + 'static>(
        &self,
        types: &[Type],
        func: F
    ); }

Required methods

With the n_columns and types parameters, you give an array of column types for this model (which will be exposed to the parent model/view). The func, data and destroy parameters are for specifying the modify function. The modify function will get called for each data access, the goal of the modify function is to return the data which should be displayed at the location specified using the parameters of the modify function.

Note that TreeModelFilterExtManual::set_modify_func() can only be called once for a given filter model.

types

The GTypes of the columns.

func

A GtkTreeModelFilterModifyFunc

Implementors