Enum FillHint 

pub enum FillHint {
    None,
    OpaqueSolid(PremulColor),
    OpaqueImage,
}

Optimization hint for fill operations, computed in Wide::generate and passed to WideTile::fill.

This enum communicates whether a fill operation can benefit from overdraw elimination:

• For opaque solid colors: we can set the background color directly and skip the fill
• For opaque images: we can clear previous commands but still need to emit the fill

Variants

None

No optimization possible, emit fill command normally.

OpaqueSolid(PremulColor)

Paint is an opaque solid color - can replace background if conditions are met.

OpaqueImage

Paint is an opaque image - can clear previous commands if conditions are met.

Trait Implementations

impl Clone for FillHint

fn clone(&self) -> FillHint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FillHint

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

Formats the value using the given formatter.

impl Copy for FillHint