Struct TreeListViewState 

pub struct TreeListViewState<Id> { /* private fields */ }

Состояние виджета: развёрнутые узлы, выделение, кеши видимости и меток.

Implementations

impl<Id: Copy + Eq + Hash> TreeListViewState<Id>

pub fn new() -> Self

pub fn with_capacity(capacity: usize) -> Self

pub fn snapshot(&self) -> TreeListViewSnapshot<Id>

pub fn restore(&mut self, snapshot: TreeListViewSnapshot<Id>)

pub const fn draw_lines(&self) -> bool

pub const fn set_draw_lines(&mut self, draw: bool)

pub const fn invalidate(&mut self)

pub const fn invalidate_all(&mut self)

pub const fn select_first(&mut self)

pub const fn select_last(&mut self)

pub fn scroll_down_by(&mut self, amount: u16)

pub fn scroll_up_by(&mut self, amount: u16)

pub fn select_prev(&mut self)

pub fn select_next(&mut self)

pub fn ensure_selection_visible(&mut self, viewport_height: usize)

pub fn ensure_selection_visible_with_policy( &mut self, viewport_height: usize, policy: TreeScrollPolicy, )

pub fn selected_id(&self) -> Option<Id>

pub fn selected_parent_id(&self) -> Option<Id>

pub const fn visible_len(&self) -> usize

pub fn selected_level(&self) -> Option<u16>

pub fn selected_is_expanded<T: TreeModel<Id = Id>>( &self, model: &T, ) -> Option<bool>

pub fn select_by_id<T: TreeModel<Id = Id>>(&mut self, model: &T, id: Id) -> bool

pub fn ensure_visible_id<T: TreeModel<Id = Id>>( &mut self, model: &T, id: Id, ) -> bool

pub fn expand_to<T: TreeModel<Id = Id>>(&mut self, model: &T, id: Id) -> bool

pub fn expand_all<T: TreeModel<Id = Id>>(&mut self, model: &T)

pub fn collapse_all(&mut self)

pub fn ensure_visible_nodes<T: TreeModel<Id = Id>>(&mut self, model: &T)

pub fn ensure_visible_nodes_filtered<T, F>( &mut self, model: &T, filter: &F, config: TreeFilterConfig, )

where T: TreeModel<Id = Id>, F: TreeFilter<T>,

pub fn ensure_mark_cache<T: TreeModel<Id = Id>>(&mut self, model: &T)

pub fn node_is_marked(&self, node_id: Id) -> bool

pub fn prune_removed_marks<T: TreeModel<Id = Id>>(&mut self, model: &T)

pub fn handle_action<T: TreeModel<Id = Id>, C>( &mut self, model: &T, action: TreeAction<C>, ) -> TreeEvent<C>

pub fn handle_action_filtered<T, F, C>( &mut self, model: &T, filter: &F, config: TreeFilterConfig, action: TreeAction<C>, ) -> TreeEvent<C>

where T: TreeModel<Id = Id>, F: TreeFilter<T>,

pub fn toggle(&mut self, node_id: Id, parent: Option<Id>)

pub fn set_expanded(&mut self, node_id: Id, parent: Option<Id>, expand: bool)

Trait Implementations

impl<Id: Copy + Eq + Hash> Default for TreeListViewState<Id>

fn default() -> Self

Returns the “default value” for a type.