Struct DamageHint 

pub struct DamageHint {
    pub source: u64,
    pub from: u64,
    pub to: u64,
    pub placement: Affine,
    pub rects: Vec<Rect>,
    pub copies: Vec<MovedRegion>,
}

What changed in a part’s content between two generations of it, as the one who painted it knows: an embedded app’s own widget damage.

Fields

source: u64

Who painted the content. A hint follows on only within one source.

from: u64

The generation the damage is measured from.

to: u64

The generation painted.

placement: Affine

Where the content is placed: content placed elsewhere has moved.

rects: Vec<Rect>

Every pixel that differs between generations from and to, in the section’s coordinates, antialiasing, shadows and overhang included, except where copies land.

copies: Vec<MovedRegion>

What of generation from generation to shows moved, in the section’s coordinates (crate::scroll_copy): a host that keeps the pixels it presented may move them instead of repainting where they land (damage_with_copies). Any other host repaints there.

Trait Implementations

impl Clone for DamageHint

fn clone(&self) -> DamageHint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DamageHint

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

Formats the value using the given formatter.

impl PartialEq for DamageHint

fn eq(&self, other: &DamageHint) -> 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 StructuralPartialEq for DamageHint