Struct Clock 

pub struct Clock { /* private fields */ }

Analog clock widget. Owns layers in z-order; composes them per frame via dirty-rect union math.

Implementations

impl Clock

pub fn new(bounds: Rect) -> Self

Create a new clock occupying bounds. The first call to set_target_time will return TickOutcome::FullRepaint.

pub fn push_layer<L: ClockLayer + 'static>(&mut self, layer: L)

Append a layer. Layers paint in insertion order (later layers on top).

pub fn invalidate(&mut self)

Force the next set_target_time call to be treated as a full repaint. Use after extent changes, theme changes, or when the widget re-enters visibility.

pub fn last_outcome(&self) -> TickOutcome

Telemetry from the most recent set_target_time call.

pub fn set_target_time(&mut self, target_time: ClockTime) -> TickOutcome

Compute the next frame’s plan from the driver-supplied target time. Returns telemetry about what will happen during draw.

Idempotent on a fixed (target_time, bounds) — safe for the driver to skip frames; absolute-time math means no accumulator drift.

Trait Implementations

impl Widget for Clock

fn bounds(&self) -> Rect

Return the area this widget occupies relative to its parent.

fn draw(&self, renderer: &mut dyn Renderer)

Render the widget using the provided Renderer.

fn handle_event(&mut self, _event: &Event) -> bool

Handle an event and return true if it was consumed.

fn clear_region(&mut self) -> Option<Rect>

Return a region (in draw/landscape coordinates) that should be restored from the pristine background copy, or None.

fn set_bounds(&mut self, _bounds: Rect)

Called by the LPAR-10 layout pass to notify this widget of its layout-computed bounds.

fn widget_font_mut(&mut self) -> Option<&mut WidgetFont>

Expose this widget’s font slot for cascade-driven font resolution (FONT-05 §5.B).