Struct RenderedBlock 

pub struct RenderedBlock { /* private fields */ }

A rectangular character grid with dimensional metadata.

This is the core data structure for 2D math rendering. Each cell contains a string (to handle multi-codepoint grapheme clusters). The baseline marks the row used for horizontal alignment when composing blocks side-by-side.

Implementations

impl RenderedBlock

pub fn new(cells: Vec<Vec<String>>, baseline: usize) -> Self

Create a new block from rows of cell strings.

Width is computed from the first row (all rows must have equal width). The baseline defaults to height / 2 if not specified.

pub fn from_char(ch: char) -> Self

Create a block containing a single character.

pub fn from_text(text: &str) -> Self

Create a block from a string of text (single row).

pub fn empty() -> Self

Create an empty block with zero dimensions.

pub fn width(&self) -> usize

pub fn height(&self) -> usize

pub fn baseline(&self) -> usize

pub fn cells(&self) -> &[Vec<String>]

pub fn is_empty(&self) -> bool

pub fn beside(&self, other: &RenderedBlock) -> RenderedBlock

Place two blocks side-by-side, aligned on baselines. Pads the shorter block with empty rows above/below as needed.

pub fn above( top: &RenderedBlock, bottom: &RenderedBlock, baseline_row: usize, ) -> RenderedBlock

Stack two blocks vertically. The baseline is set to baseline_row (typically the dividing row between them, or top/bottom block’s baseline).

pub fn pad( &self, left: usize, right: usize, top: usize, bottom: usize, ) -> RenderedBlock

Add empty space around a block.

pub fn center_in(&self, target_width: usize) -> RenderedBlock

Horizontally centre a block within a given width.

pub fn hline(ch: char, width: usize) -> RenderedBlock

Create a horizontal line of a given character and width.

Trait Implementations

impl Clone for RenderedBlock

fn clone(&self) -> RenderedBlock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RenderedBlock

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

Formats the value using the given formatter.

impl Display for RenderedBlock

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

Formats the value using the given formatter.