Struct FramingSession 

pub struct FramingSession { /* private fields */ }

One framed canvas in progress.

Implementations

impl FramingSession

pub fn new( source: SourceCanvas, pane: Rect, ignore: Vec<Region>, size: usize, max_tiles: usize, ) -> Self

A session framing source, seen through pane of the reference frame (the region rectangle intersected with its crop), with ignore regions left out of the chrome, over the cache’s size-pixel tiles.

pub fn framed_id(&self) -> String

The id of the framed canvas this session builds.

pub fn reference( &mut self, reference: Option<Reference>, ) -> Result<(), FramingError>

The reference frame, or None when none is stored.

pub fn index( &mut self, x: i32, y: i32, observed: u64, ) -> Result<(), FramingError>

One stored level-0 tile-index row of the source canvas, in the order the store holds them.

pub fn step( &mut self, cache: &mut TileCache, now: f64, ) -> Result<Step, FramingError>