Struct PaintedEmptyStates 

pub struct PaintedEmptyStates { /* private fields */ }

The empty states a host’s content painted itself with EmptyState::paint, described for it: each becomes a group named by its title with its action as a button where it was drawn, unless the content describes that button already. Activating the button clicks where it is drawn, exactly as a pointer would, so the content’s own hit test runs it.

A host keeps one per content it draws: Self::draw around the content’s paint, Self::describe over its accessibility and Self::action_rect for where an activation lands.

Implementations

impl PaintedEmptyStates

pub fn is_empty(&self) -> bool

Whether the last draw painted no empty state: Self::describe then returns the content’s node as it is.

pub fn draw(&mut self, transform: Affine, draw: impl FnOnce())

Run draw, keeping the empty-state actions it paints in the space transform maps from: the content’s own coordinates.

pub fn describe( &self, node: Option<AccessNode>, content: &dyn Widget, ) -> Option<AccessNode>

node, the content’s own accessibility, with each painted state whose action neither it nor a widget inside content describes.

pub fn action_rect( &self, described: &AccessNode, path: &[usize], ) -> Option<Rect>

Where the painted action at path beneath described (what Self::describe returned) is drawn; None for any other node.

Trait Implementations

impl Debug for PaintedEmptyStates

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

Formats the value using the given formatter.

impl Default for PaintedEmptyStates

fn default() -> PaintedEmptyStates

Returns the “default value” for a type.