Struct TileCoverage 

pub struct TileCoverage {
    pub origin: (i32, i32),
    pub size: (u32, u32),
    pub tiles: Vec<TileState>,
    pub partial: Vec<[u8; 256]>,
}

A path’s coverage over a rectangle of whole tiles.

Fields

origin: (i32, i32)

The first tile’s position, in tiles: pixel (16 x, 16 y).

size: (u32, u32)

Tiles across and down.

tiles: Vec<TileState>

Each tile, row by row.

partial: Vec<[u8; 256]>

The bytes of each partial tile, row by row within it.

Implementations

impl TileCoverage

pub fn at(&self, x: i32, y: i32) -> u8

The coverage of pixel (x, y), zero outside the tiles.

pub fn rect(&self) -> IRect

The pixel rectangle the tiles cover.

pub fn heap_bytes(&self) -> usize

The heap it holds, as a cache counts it.

pub fn counts(&self) -> (usize, usize, usize)

Counts of empty, full, and partial tiles.

Trait Implementations

impl Clone for TileCoverage

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 TileCoverage

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

Formats the value using the given formatter.

impl Default for TileCoverage

fn default() -> Self

Returns the “default value” for a type.

impl Eq for TileCoverage

impl PartialEq for TileCoverage

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TileCoverage