Enum TreeRootMessage

pub enum TreeRootMessage {
    AddItem(Handle<UiNode>),
    RemoveItem(Handle<UiNode>),
    Items(Vec<Handle<UiNode>>),
    Selected(Vec<Handle<UiNode>>),
    ExpandAll,
    CollapseAll,
    ItemsChanged,
}

A set of messages, that could be used to alternate the state of a TreeRoot widget.

Variants

AddItem(Handle<UiNode>)

A message, that is used to add a child item to a tree root.

RemoveItem(Handle<UiNode>)

A message, that is used to remove a child item from a tree root.

Items(Vec<Handle<UiNode>>)

A message, that is used to specify a new set of children items of a tree root.

Selected(Vec<Handle<UiNode>>)

A message, that it is used to fetch or set current selection of a tree root.

ExpandAll

A message, that is used to expand all descendant trees in the hierarchy.

CollapseAll

A message, that is used to collapse all descendant trees in the hierarchy.

ItemsChanged

A message, that is used as a notification when tree root’s items has changed.

Implementations

impl TreeRootMessage

pub fn add_item( destination: Handle<UiNode>, direction: MessageDirection, value: Handle<UiNode>, ) -> UiMessage

Creates TreeRootMessage::AddItem message.

pub fn remove_item( destination: Handle<UiNode>, direction: MessageDirection, value: Handle<UiNode>, ) -> UiMessage

Creates TreeRootMessage::RemoveItem message.

pub fn items( destination: Handle<UiNode>, direction: MessageDirection, value: Vec<Handle<UiNode>>, ) -> UiMessage

Creates TreeRootMessage::Items message.

pub fn select( destination: Handle<UiNode>, direction: MessageDirection, value: Vec<Handle<UiNode>>, ) -> UiMessage

Creates TreeRootMessage::Selected message.

pub fn expand_all( destination: Handle<UiNode>, direction: MessageDirection, ) -> UiMessage

Creates TreeRootMessage::ExpandAll message.

pub fn collapse_all( destination: Handle<UiNode>, direction: MessageDirection, ) -> UiMessage

Creates TreeRootMessage::CollapseAll message.

pub fn items_changed( destination: Handle<UiNode>, direction: MessageDirection, ) -> UiMessage

Creates TreeRootMessage::ItemsChanged message.

Trait Implementations

impl Clone for TreeRootMessage

fn clone(&self) -> TreeRootMessage

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TreeRootMessage

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl PartialEq for TreeRootMessage

fn eq(&self, other: &TreeRootMessage) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for TreeRootMessage

impl StructuralPartialEq for TreeRootMessage