Struct HighlightPolicy 

pub struct HighlightPolicy { /* private fields */ }

How long a change stays highlighted, in how many steps it fades, and how long a removed row fades out.

This is the default implementation of the HighlightPolicy seam.

Implementations

impl HighlightPolicy

pub fn new(duration: Duration, steps: u32) -> Self

A highlight that lasts duration and fades in steps steps. Removed rows go at once.

pub fn with_removal_fade(self, fade: Duration) -> Self

Keeps a removed row on screen, fading, for fade, on the global tick and steps of this policy. Duration::ZERO, the default, removes at once. A store setting, like the duration: the store keeps the row in its snapshots while it fades (StoreSnapshot::fading_row).

pub fn removal_fade(&self) -> Duration

How long a removed row fades out; zero when it goes at once.

pub fn duration_ms(&self) -> u32

The highlight duration in milliseconds.

pub fn steps(&self) -> u32

The number of fade steps.

pub fn tick(&self, now_ms: u32) -> u32

The global tick at or before now_ms. All cells are evaluated at the same tick, so they change steps on the same frames.

pub fn next_tick(&self, now_ms: u32) -> u32

The next global tick after now_ms: the single deadline the view waits for while any visible cell is hot.

pub fn intensity(&self, stamp: Stamp, tick_ms: u32) -> Option<f32>

Highlight intensity at tick_ms, from 1.0 (just changed) down to 1 / steps; None once the highlight expired.

pub fn is_expired(&self, stamp: Stamp, now_ms: u32) -> bool

Returns true if the stamp no longer highlights at now_ms.

pub fn removal_intensity(&self, removed: Stamp, tick_ms: u32) -> Option<f32>

The intensity of a fading row with the removal stamp removed at tick_ms: from 1.0 (just removed) down in the steps of the global tick that fit in Self::removal_fade; None once the fade ended, and always without a removal fade.

Trait Implementations

impl Clone for HighlightPolicy

fn clone(&self) -> HighlightPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HighlightPolicy

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

Formats the value using the given formatter.

impl Default for HighlightPolicy

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for HighlightPolicy

fn eq(&self, other: &HighlightPolicy) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for HighlightPolicy

impl Eq for HighlightPolicy

impl StructuralPartialEq for HighlightPolicy