Struct FillStack 

pub struct FillStack;

A minimal retained container that lays out all children to fill the same bounds.

Child order defines paint/input stacking (last child is on top).

Implementations

impl FillStack

pub fn create_node<H: UiHost>(ui: &mut UiTree<H>) -> NodeId

Trait Implementations

impl Clone for FillStack

fn clone(&self) -> FillStack

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FillStack

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

Formats the value using the given formatter.

impl Default for FillStack

fn default() -> FillStack

Returns the “default value” for a type.

impl<H: UiHost> Widget<H> for FillStack

fn layout(&mut self, cx: &mut LayoutCx<'_, H>) -> Size

fn event_capture(&mut self, _cx: &mut EventCx<'_, H>, _event: &Event)

Capture-phase event dispatch (root → target).

fn event_observer(&mut self, _cx: &mut ObserverCx<'_, H>, _event: &Event)

Observer-phase event dispatch (InputDispatchPhase::Preview).

fn debug_type_name(&self) -> &'static str

fn event(&mut self, _cx: &mut EventCx<'_, H>, _event: &Event)

fn command(&mut self, _cx: &mut CommandCx<'_, H>, _command: &CommandId) -> bool

fn command_availability( &self, _cx: &mut CommandAvailabilityCx<'_, H>, _command: &CommandId, ) -> CommandAvailability

Pure query: does this node participate in availability for command?

fn cleanup_resources(&mut self, _services: &mut dyn UiServices)

fn render_transform(&self, _bounds: Rect) -> Option<Transform2D>

Optional affine transform applied to both paint and input for the subtree rooted at this node.

fn children_render_transform(&self, _bounds: Rect) -> Option<Transform2D>

Optional affine transform applied to children only (not to this node’s own bounds).

fn cursor_icon_at( &self, _bounds: Rect, _position: Point, _input_ctx: &InputContext, ) -> Option<CursorIcon>

Optional cursor icon request for a pointer position.

fn clips_hit_test(&self, _bounds: Rect) -> bool

Whether hit-testing should be clipped to bounds.

fn clip_hit_test_corner_radii(&self, _bounds: Rect) -> Option<Corners>

Optional rounded-rectangle clip shape for hit-testing.

fn hit_test(&self, _bounds: Rect, _position: Point) -> bool

Hit-test predicate for pointer input targeting.

fn hit_test_children(&self, _bounds: Rect, _position: Point) -> bool

Whether the node’s children participate in hit-testing.

fn semantics_present(&self) -> bool

Whether this node should be included in the semantics snapshot.

fn semantics_children(&self) -> bool

Whether semantics snapshot traversal should recurse into this node’s children.

fn sync_interactivity_gate(&mut self, _present: bool, _interactive: bool)

Optional synchronization hook for declarative InteractivityGate nodes.

fn sync_hit_test_gate(&mut self, _hit_test: bool)

Optional synchronization hook for declarative HitTestGate nodes.

fn sync_focus_traversal_gate(&mut self, _traverse: bool)

Optional synchronization hook for declarative FocusTraversalGate nodes.

fn focus_traversal_children(&self) -> bool

Whether focus traversal should recurse into this node’s children.

fn is_focusable(&self) -> bool

fn is_text_input(&self) -> bool

fn platform_text_input_snapshot(&self) -> Option<WindowTextInputSnapshot>

Optional platform-facing text input snapshot for the focused widget.

fn platform_text_input_selected_range_utf16(&self) -> Option<Utf16Range>

Returns the focused selection range (UTF-16 code units over the composed view).

fn platform_text_input_marked_range_utf16(&self) -> Option<Utf16Range>

Returns the marked (preedit) range (UTF-16 code units over the composed view).

fn platform_text_input_text_for_range_utf16( &self, _range: Utf16Range, ) -> Option<String>

fn platform_text_input_bounds_for_range_utf16( &mut self, _cx: &mut PlatformTextInputCx<'_, H>, _range: Utf16Range, ) -> Option<Rect>

fn platform_text_input_character_index_for_point_utf16( &mut self, _cx: &mut PlatformTextInputCx<'_, H>, _point: Point, ) -> Option<u32>

fn platform_text_input_replace_text_in_range_utf16( &mut self, _cx: &mut PlatformTextInputCx<'_, H>, _range: Utf16Range, _text: &str, ) -> bool

fn platform_text_input_replace_and_mark_text_in_range_utf16( &mut self, _cx: &mut PlatformTextInputCx<'_, H>, _range: Utf16Range, _text: &str, _marked: Option<Utf16Range>, _selected: Option<Utf16Range>, ) -> bool

fn can_scroll_by(&self) -> bool

Whether this node supports direct “scroll-by” requests (typically for accessibility).

fn scroll_by( &mut self, _cx: &mut ScrollByCx<'_, H>, _delta: Point, ) -> ScrollByResult

fn can_scroll_descendant_into_view(&self) -> bool

Whether this node can scroll a focused descendant into view.

fn scroll_descendant_into_view( &mut self, _cx: &mut ScrollIntoViewCx<'_, H>, _descendant_bounds: Rect, ) -> ScrollIntoViewResult

fn measure(&mut self, _cx: &mut MeasureCx<'_, H>) -> Size

fn prepaint(&mut self, _cx: &mut PrepaintCx<'_, H>)

Prepaint hook invoked after layout, before paint.

fn paint(&mut self, cx: &mut PaintCx<'_, H>)

fn semantics(&mut self, _cx: &mut SemanticsCx<'_, H>)

impl Copy for FillStack