Trait gtk::prelude::TreeModelSortExt

source · [−]
pub trait TreeModelSortExt: 'static {
    fn clear_cache(&self);
    fn convert_child_iter_to_iter(
        &self, 
        child_iter: &TreeIter
    ) -> Option<TreeIter>;
    fn convert_child_path_to_path(
        &self, 
        child_path: &TreePath
    ) -> Option<TreePath>;
    fn convert_iter_to_child_iter(&self, sorted_iter: &TreeIter) -> TreeIter;
    fn convert_path_to_child_path(
        &self, 
        sorted_path: &TreePath
    ) -> Option<TreePath>;
    fn model(&self) -> TreeModel;
    fn iter_is_valid(&self, iter: &TreeIter) -> bool;
    fn reset_default_sort_func(&self);
}
Expand description

Trait containing all TreeModelSort methods.

Implementors

TreeModelSort

Required Methods

This function should almost never be called. It clears the self of any cached iterators that haven’t been reffed with gtk_tree_model_ref_node(). This might be useful if the child model being sorted is static (and doesn’t change often) and there has been a lot of unreffed access to nodes. As a side effect of this function, all unreffed iters will be invalid.

Sets sort_iter to point to the row in self that corresponds to the row pointed at by child_iter. If sort_iter was not set, false is returned. Note: a boolean is only returned since 2.14.

child_iter

A valid TreeIter pointing to a row on the child model

Returns

true, if sort_iter was set, i.e. if sort_iter is a valid iterator pointer to a visible row in the child model.

sort_iter

An uninitialized TreeIter.

Converts child_path to a path relative to self. That is, child_path points to a path in the child model. The returned path will point to the same row in the sorted model. If child_path isn’t a valid path on the child model, then None is returned.

child_path

A TreePath to convert

Returns

A newly allocated TreePath, or None

Sets child_iter to point to the row pointed to by sorted_iter.

sorted_iter

A valid TreeIter pointing to a row on self.

Returns
child_iter

An uninitialized TreeIter

Converts sorted_path to a path on the child model of self. That is, sorted_path points to a location in self. The returned path will point to the same location in the model not being sorted. If sorted_path does not point to a location in the child model, None is returned.

sorted_path

A TreePath to convert

Returns

A newly allocated TreePath, or None

Returns the model the TreeModelSort is sorting.

Returns

the “child model” being sorted

This function is slow. Only use it for debugging and/or testing purposes.

Checks if the given iter is a valid iter for this TreeModelSort.

iter

A TreeIter.

Returns

true if the iter is valid, false if the iter is invalid.

This resets the default sort function to be in the “unsorted” state. That is, it is in the same order as the child model. It will re-sort the model to be in the same order as the child model only if the TreeModelSort is in “unsorted” state.

Implementors