Struct zng::widget::node::PanelListRange

pub struct PanelListRange { /* private fields */ }

First and last child widget in a PanelList.

Implementations

impl PanelListRange

pub fn update( parent: &WidgetInfo, panel_id: impl Into<StateId<PanelListRange>>, last_version: &mut Option<u8>, ) -> Option<Children>

Gets the panel children if it may have changed since last_version.

The PanelList requests an update for each child after info rebuild if it has changed, the item properties can used this method on update to react.

pub fn get( parent: &WidgetInfo, panel_id: impl Into<StateId<PanelListRange>>, ) -> Option<Children>

Gets the panel children if the parent contains the panel_id.

Trait Implementations

impl Clone for PanelListRange

fn clone(&self) -> PanelListRange

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PanelListRange

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

Formats the value using the given formatter.