Struct BlocksSurface 

pub struct BlocksSurface { /* private fields */ }

The stateful blocks presenter: renders a pixel surface as quarter-block cells once, then repaints only the cells whose pixels changed.

Implementations

impl BlocksSurface

pub fn new() -> Self

A fresh presenter with no previous frame.

pub fn render_frame<W: Sink>( &mut self, out: &mut W, surface: &Surface, ) -> Result<usize>

Write one frame’s cells and return the bytes written. A fresh or resized frame clears the screen and repaints every cell; a later frame repaints only the cells whose pixels changed, inside synchronized output, with no clear that would erase the rest. An unchanged frame writes nothing.

Trait Implementations

impl Debug for BlocksSurface

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

Formats the value using the given formatter.

impl Default for BlocksSurface

fn default() -> Self

Returns the “default value” for a type.