gtk.TreeModelSort

gtk.TreeModelSort
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gtk.TreeModelSort — a tree model that is a sorted version of a child gtk.TreeModel

Synopsis

class gtk.TreeModelSort(gobject.GObject, gtk.TreeModel, gtk.TreeSortable):
    gtk.TreeModelSort(child_model)
    def get_model()
    def convert_child_path_to_path(child_path)
    def convert_child_iter_to_iter(sort_iter, child_iter)
    def convert_path_to_child_path(sorted_path)
    def convert_iter_to_child_iter(child_iter, sorted_iter)
    def reset_default_sort_func()
    def clear_cache()
    def iter_is_valid(iter)

Ancestry

+-- gobject.GObject
  +-- gtk.TreeModelSort (implements gtk.TreeModel, gtk.TreeSortable)

gtk.TreeModelSort Properties

"model" Read-Write-Construct The child model for the gtk.TreeModelSort to sort.

gtk.TreeModelSort Signal Prototypes

gobject.GObject Signal Prototypes

gtk.TreeSortable Signal Prototypes

gtk.TreeModel Signal Prototypes

Description

A gtk.TreeModelSort is a sorted model of its child model. A gtk.TreeModelSort implements the gtk.TreeModel interface and the gtk.TreeSortable interface to manage the sort functions.

The gtk.TreeModelSort objects support the Python mapping and iterator protocols. See the gtk.TreeModel Description and the PyGTK tutorial for more information.

Constructor

    gtk.TreeModelSort(child_model)

`child_model` :	a child `gtk.TreeModel`
Returns :	A new `gtk.TreeModel`.

Creates a new gtk.TreeModel, with child_model as the child model.

Methods

gtk.TreeModelSort.get_model

    def get_model()

Returns :

the "child model" being sorted

The get_model() method returns the model that the gtk.TreeModelSort is sorting.

gtk.TreeModelSort.convert_child_path_to_path

    def convert_child_path_to_path(child_path)

`child_path` :	A child tree path to convert
Returns :	A new tree path in the treemodelsort, or `None`

The convert_child_path_to_path() method converts the path in the child model specified by child_path to a path relative to the treemodelsort. 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.

gtk.TreeModelSort.convert_child_iter_to_iter

    def convert_child_iter_to_iter(sort_iter, child_iter)

`sort_iter` :	`None` or a `gtk.TreeIter` for backward compatibility.
`child_iter` :	A valid `gtk.TreeIter` pointing to a row on the child model
Returns :	A `gtk.TreeIter` pointing to the same path in the sorted model.

The convert_child_iter_to_iter() method returns a gtk.TreeIter that points to the row in the treemodelsort that corresponds to the row pointed to by child_iter. sort_iter parameter should be None but can specify a gtk.TreeIter for backward compatibility.

gtk.TreeModelSort.convert_path_to_child_path

    def convert_path_to_child_path(sorted_path)

`sorted_path` :	a path in the sorted model
Returns :	a new path in the child model, or `None`

The convert_path_to_child_path() method returns a path in the child model that refers to the same row as the path in the sorted model specified by sorted_path. That is, sorted_path points to a location in treemodelsort and the returned path will point to the same location in the child model. If sorted_path does not point to a location in the child model, None is returned.

gtk.TreeModelSort.convert_iter_to_child_iter

    def convert_iter_to_child_iter(child_iter, sorted_iter)

`child_iter` :	`None` or a `gtk.TreeIter` for backward compatibility.
`sorted_iter` :	A valid `gtk.TreeIter` pointing to a row on `tree_model_sort`.
Returns :	A `gtk.TreeIter` that points to a row in the child model

The convert_iter_to_child_iter() method returns a gtk.TreeIter that points to the row in the child model that is the same row pointed to by sorted_iter in the treemodelsort. child_iter should be None but can specify a gtk.TreeIter for backward compatibility.

gtk.TreeModelSort.reset_default_sort_func

    def reset_default_sort_func()

The reset_default_sort_func() method 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 gtk.TreeModelSort is in 'unsorted' state.

gtk.TreeModelSort.clear_cache

    def clear_cache()

The clear_cache() method clears the treemodelsort of any cached iterators that haven't been reffed with the ref_node() method. 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 gtk.TreeIter objects will be invalid.

gtk.TreeModelSort.iter_is_valid

    def iter_is_valid(iter)

`iter` :	A `gtk.TreeIter`.
Returns :	`True` if `iter` is valid

Note

This method is available in PyGTK 2.2 and above.

The iter_is_valid() method checks if the gtk.TreeIter specified by iter is valid for the treemodel sort.

Warning

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

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