Struct Canvas 

pub struct Canvas {
    pub width: u32,
    pub height: u32,
    pub receivers: Vec<Receiver>,
    pub panels: Vec<Panel>,
}

A complete wall.

Fields

width: u32

height: u32

receivers: Vec<Receiver>

panels: Vec<Panel>

Implementations

impl Canvas

pub fn single(width: u32, height: u32) -> Self

The common case: a single panel on a single receiver.

pub fn grid(panel_w: u32, panel_h: u32, cols: u32, rows: u32) -> Self

A regular grid of identical panels across one receiver.

pub fn cards(panel_w: u32, panel_h: u32, cols: u32, rows: u32) -> Self

A regular grid of identical panels, one receiving card per panel, cards numbered row-major from 0.

pub fn validate(&self) -> Result<(), LayoutError>

Check the description is self-consistent before anything is driven.

Errors

Reports receivers that fall off the canvas and panels that fall off the canvas, name an unknown receiver, or exceed their receiver’s window.

pub fn screen_frame(&self) -> Frame

A black framebuffer the size of the screen.

pub fn render(&self, src: &Frame) -> Frame

Map one canvas image onto the screen: each panel’s pixels land where its receiver’s window shows them.

pub fn render_into(&self, src: &Frame, out: &mut Frame)

render into a caller-owned screen frame, so a refresh loop allocates nothing. out is cleared to black and reused when it is the screen size, replaced otherwise.

Trait Implementations

impl Clone for Canvas

fn clone(&self) -> Canvas

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Canvas

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Canvas

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Canvas

impl PartialEq for Canvas

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Canvas

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Canvas