Struct Ripples 

pub struct Ripples { /* private fields */ }

Every splash currently alive on one widget.

There can be several: a second tap does not cancel the first one’s fade, it starts its own circle beside it — which is what makes drumming on a surface look like water rather than a switch.

Implementations

impl Ripples

pub fn press(&mut self, origin: Point, size: Size)

A finger landed at origin, in the coordinates of a box of size.

pub fn confirm(&mut self)

The tap completed. Only the splash still waiting for it is confirmed.

pub fn cancel(&mut self)

The gesture ended without a tap: every waiting splash leaves.

pub fn advance(&mut self, dt: f32) -> bool

Advances every splash, dropping the ones that have gone. Returns true while any is still moving.

pub fn is_idle(&self) -> bool

Is there nothing left to draw?

pub fn hash_state<H: Hasher>(&self, h: &mut H)

Folds the splashes’ motion into a hash — what the paint-boundary cache compares to notice that a cached surface no longer paints what it did last frame.

pub fn paint( &self, owner: u64, bounds: Rect, radius: BorderRadius, color: Color, scene: &mut Scene, )

Paints the splashes into bounds, clipped to the box and its rounding.

The circles go into a composited layer whose shape erases whatever runs past the corners — the same machinery crate::ClipRRect uses, and the reason ink hugs a rounded button instead of squaring it off.

Trait Implementations

impl Clone for Ripples

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Ripples

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

Formats the value using the given formatter.

impl Default for Ripples

fn default() -> Self

Returns the “default value” for a type.