Struct ChartCanvas 

pub struct ChartCanvas { /* private fields */ }

Implementations

impl ChartCanvas

pub fn new(spec: ChartSpec) -> Result<Self, ModelError>

pub fn new_shared(engine: Rc<RefCell<ChartEngine>>) -> Self

Creates a ChartCanvas that renders a shared ChartEngine.

This is primarily intended for diagnostics harnesses and multi-surface adapters that need to hold an engine handle outside the widget tree.

pub fn new_grid_view(engine: Rc<RefCell<ChartEngine>>, grid: GridId) -> Self

pub fn new_overlay(engine: Rc<RefCell<ChartEngine>>) -> Self

pub fn set_text_cache_prune_tuning(&mut self, tuning: ChartTextCachePruneTuning)

pub fn engine(&self) -> &ChartEngine

pub fn engine_mut(&mut self) -> &mut ChartEngine

pub fn set_style(&mut self, style: ChartStyle)

pub fn set_style_source(&mut self, source: ChartStyleSource)

pub fn set_tooltip_formatter(&mut self, formatter: Box<dyn TooltipFormatter>)

pub fn set_input_map(&mut self, map: ChartInputMap)

pub fn set_accessibility_layer(&mut self, enabled: bool)

pub fn test_id(self, id: impl Into<String>) -> Self

pub fn linked_brush(self, brush: Model<Option<BrushSelectionLink2D>>) -> Self

pub fn linked_axis_pointer( self, axis_pointer: Model<Option<AxisPointerLinkAnchor>>, ) -> Self

pub fn linked_domain_windows( self, windows: Model<BTreeMap<LinkAxisKey, Option<DataWindow>>>, ) -> Self

pub fn link_axis_map(self, map: BTreeMap<AxisId, LinkAxisKey>) -> Self

pub fn output_model(self, output: Model<ChartCanvasOutput>) -> Self

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

Trait Implementations

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

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

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

Hit-test predicate for pointer input targeting.

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

fn layout(&mut self, cx: &mut LayoutCx<'_, 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 cleanup_resources(&mut self, services: &mut dyn UiServices)

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 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 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_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