Struct TextSelection 

pub struct TextSelection {
    pub base: usize,
    pub extent: usize,
}

A selection preserves directional base/extent while exposing a normalized range for text replacement.

Fields

base: usize

extent: usize

Implementations

impl TextSelection

pub const fn new(base: usize, extent: usize) -> Self

pub const fn collapsed(offset: usize) -> Self

pub const fn start(self) -> usize

pub const fn end(self) -> usize

pub const fn is_collapsed(self) -> bool

pub const fn is_forward(self) -> bool

pub const fn range(self) -> TextRange

pub fn clamp_to(self, text: &str) -> Self

Clamps both edges into the text at UTF-8 char boundaries, snapping down. Char boundaries are deliberately not grapheme boundaries: a mid-grapheme edge survives clamping and the caret mapping below resolves it to the shaping-cluster edge instead.

Trait Implementations

impl Clone for TextSelection

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TextSelection

impl Debug for TextSelection

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

Formats the value using the given formatter.

impl Default for TextSelection

fn default() -> Self

Returns the “default value” for a type.

impl Eq for TextSelection

impl Hash for TextSelection

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 TextSelection

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TextSelection