Struct TextSegment 

pub struct TextSegment {
    pub span: TextLayoutSpan,
    pub kind: TextSegmentKind,
}

𝐓 🧱 A semantic text segment used for wrapping.

---

^{📍 text/layout::TextSegment}

^{📦 size_of::<TextSegment>() == 16 bytes / 128 bits ⚗️Option<T> 🟰 T}

---

Fields

span: TextLayoutSpan

Covered symbol range and whole-segment inline extent.

kind: TextSegmentKind

Segment behavior during wrapping.

Implementations

impl TextSegment

pub const INIT: Self

A zero-width empty box segment.

pub const fn new(span: TextLayoutSpan, kind: TextSegmentKind) -> Self

Creates a text segment.

pub const fn box_from_prim(start: u32, end: u32, units: TextUnit) -> Self

Creates a box segment from primitive indices and units.

pub const fn glue_from_prim(start: u32, end: u32, units: TextUnit) -> Self

Creates a glue segment from primitive indices and units.

pub const fn hard_break_from_prim(start: u32, end: u32) -> Self

Creates a hard-break segment from primitive indices.

pub const fn is_box(self) -> bool

Returns whether this segment is a box.

pub const fn is_glue(self) -> bool

Returns whether this segment is glue.

pub const fn is_hard_break(self) -> bool

Returns whether this segment is a hard break.

pub const fn segments_from_chars(text: &str, out: &mut [TextSegment]) -> usize

Fills out with simple paragraph-oriented segments derived from chars.

Current policy:

• contiguous non-whitespace chars become TextSegmentKind::Box
• contiguous inline whitespace becomes one TextSegmentKind::Glue
• \n and \r\n become TextSegmentKind::HardBreak

Returns the initialized prefix length.

Trait Implementations

impl Clone for TextSegment

fn clone(&self) -> TextSegment

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ConstInit for TextSegment

const INIT: Self = Self::INIT

Returns the compile-time “initial value” for a type.

impl Copy for TextSegment

impl Debug for TextSegment

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

Formats the value using the given formatter.

impl Eq for TextSegment

impl Hash for TextSegment

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for TextSegment

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TextSegment