#[repr(transparent)]
pub struct TreeListRow { /* private fields */ }
Expand description

TreeListRow is used by TreeListModel to represent items.

It allows navigating the model as a tree and modify the state of rows.

TreeListRow instances are created by a TreeListModel only when the property::TreeListModel::passthrough property is not set.

There are various support objects that can make use of TreeListRow objects, such as the TreeExpander widget that allows displaying an icon to expand or collapse a row or TreeListRowSorter that makes it possible to sort trees properly.

Implements

glib::ObjectExt

Implementations

If @self is not expanded or @position is greater than the number of children, None is returned.

position

position of the child to get

Returns

the child in @position

If the row is expanded, gets the model holding the children of @self.

This model is the model created by the callback::Gtk::TreeListModelCreateModelFunc and contains the original items, no matter what value property::TreeListModel::passthrough` is set to.

Returns

The model containing the children

Gets the depth of this row.

Rows that correspond to items in the root model have a depth of zero, rows corresponding to items of models of direct children of the root model have a depth of 1 and so on.

The depth of a row never changes until the row is destroyed.

Returns

The depth of this row

Gets if a row is currently expanded.

Returns

true if the row is expanded

Gets the item corresponding to this row,

The value returned by this function never changes until the row is destroyed.

Returns

The item of this row or None when the row was destroyed

Gets the row representing the parent for @self.

That is the row that would need to be collapsed to make this row disappear.

If @self is a row corresponding to the root model, None is returned.

The value returned by this function never changes until the row is destroyed.

Returns

The parent of @self

Returns the position in the TreeListModel that @self occupies at the moment.

Returns

The position in the model

Checks if a row can be expanded.

This does not mean that the row is actually expanded, this can be checked with is_expanded().

If a row is expandable never changes until the row is destroyed.

Returns

true if the row is expandable

Expands or collapses a row.

If a row is expanded, the model of calling the `callback::Gtk::TreeListModelCreateModelFunc for the row’s item will be inserted after this row. If a row is collapsed, those items will be removed from the model.

If the row is not expandable, this function does nothing.

expanded

true if the row should be expanded

Trait Implementations

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