Enum Repaint 

pub enum Repaint {
    Full,
    Region(Vec<Rect>),
}

What a reused slot must repaint before its contents are a correct frame.

An enum rather than the reference’s { bool full; vector<Rect> region; }, because that struct can hold a full repaint and a region, and a caller reading the region without checking the flag under-paints. Here the region only exists when it is the answer.

Variants

Full

Repaint the whole buffer: the slot has never been presented, or its damage history has scrolled away, or the union grew past the cap.

Region(Vec<Rect>)

Repaint exactly this union of damage since the slot was last presented.

In present order, oldest first, and not merged or deduplicated – the producer knows more about its own cost model than this does.

Trait Implementations

impl Clone for Repaint

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 Repaint

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

Formats the value using the given formatter.

impl Eq for Repaint

impl PartialEq for Repaint

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Repaint