Struct AnimatedIconData 

pub struct AnimatedIconData { /* private fields */ }

A mark that is drawn from a number: 0.0 is one state, 1.0 is the other, and everything between is the way across.

It is Copy and costs nothing until AnimatedIconData::at is called. What comes back from at is an ordinary IconData, so every widget that already takes an icon takes a morphing one — an Icon, an IconButton, a floating action button, a chip, a navigation destination — with nothing added to any of them.

Implementations

impl AnimatedIconData

pub const fn custom(draw: fn(f32) -> Path) -> Self

A pair of the caller’s own: draw is handed a t in 0.0..=1.0 and returns the outline for it, on the 24 × 24 grid, y downwards, filled by the non-zero rule.

A function pointer rather than a closure, so a pair stays a const and is declared exactly where a bundled one would be.

use frus_core::{Path, Rect};
use frus_widgets::AnimatedIconData;

/// A bar that grows from nothing.
fn grow(t: f32) -> Path {
    Path::rect(Rect::new(12.0 - 9.0 * t, 11.0, 18.0 * t, 2.0))
}
const GROW: AnimatedIconData = AnimatedIconData::custom(grow);
assert!(GROW.at(0.0).path().verbs().len() == GROW.at(1.0).path().verbs().len());

pub const fn mirrored(self) -> Self

The same pair, declared to carry a direction — turned round in a right-to-left reading order, like IconData::mirrored. The whole animation is mirrored, at every t, because a mark that points somewhere points there all the way across.

pub const fn matches_text_direction(self) -> bool

Whether this pair is turned round for a right-to-left reading order.

pub fn at(self, t: f32) -> IconData

The mark at t, as an ordinary icon.

t is clamped to 0.0..=1.0, and a t that is not a number is read as 0.0: an animation driver that divides by a zero duration must not be able to make an icon that compares unequal to itself.

Trait Implementations

impl Clone for AnimatedIconData

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AnimatedIconData

impl Debug for AnimatedIconData

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

Formats the value using the given formatter.

impl Eq for AnimatedIconData

impl Hash for AnimatedIconData

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for AnimatedIconData

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

Equality operator ==.

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

Inequality operator !=.