Struct CellWidths 

pub struct CellWidths { /* private fields */ }

How many cells of the screen each character takes, in one language: two for a character with a wide glyph in any set of the atlas (FontAtlasDef::wide, FontAtlasDef::wide_sets), and for WIDE_PUNCTUATION in a language whose pack has it wide; one for any other. text_width measures text with it, and a glyph buffer prints with it. It also names the language’s wide set, which a renderer looks wide glyphs up in first (wide_font). CellWidths::NARROW has nothing wide. Cheap to clone: the set is shared.

Implementations

impl CellWidths

pub const NARROW: Self

Nothing is wide: one cell for every character.

pub fn of(atlas: &FontAtlasDef) -> Self

The widths of atlas’s glyphs where no language is named: a character with a wide glyph in any set takes two cells, but one of WIDE_PUNCTUATION the atlas also has narrow takes one (in_lang makes it wide).

pub fn wide(wide: impl IntoIterator<Item = char>) -> Self

Widths where the characters of wide take two cells.

pub fn in_lang(self, wide_font: Option<&str>, wide_punctuation: bool) -> Self

These widths in a language that draws from the wide set wide_font (None: no set of its own) and has WIDE_PUNCTUATION wide or not: what its pack’s lang.ron says (LangInfo::widths).

pub fn wide_font(&self) -> Option<&str>

The wide set the language draws from first, if it names one (FontAtlasDef::wide_cell).

pub fn wide_punctuation(&self) -> bool

Whether WIDE_PUNCTUATION takes two cells in this language.

pub fn is_wide(&self, c: char) -> bool

Whether c takes two cells.

pub fn of_char(&self, c: char) -> usize

How many cells c takes: 1 or 2.

Trait Implementations

impl Clone for CellWidths

fn clone(&self) -> CellWidths

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CellWidths

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

Formats the value using the given formatter.

impl Default for CellWidths

fn default() -> CellWidths

Returns the “default value” for a type.

impl Eq for CellWidths

impl PartialEq for CellWidths

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CellWidths