Struct RichText 

pub struct RichText { /* private fields */ }

A sequence of Spans that together form a rich text document.

Implementations

impl RichText

pub fn new() -> Self

Create an empty RichText.

pub fn push_span(&mut self, span: Span)

Append a span to the end of the rich text.

pub fn spans(&self) -> &[Span]

Borrow the span list.

pub fn text(&self) -> String

Return the concatenated plain text of all spans.

pub fn split_at(&mut self, byte_offset: usize)

Split a span at byte_offset (relative to the whole rich text).

After the call the span that straddles byte_offset is replaced by two spans. Offsets that fall exactly on a span boundary are no-ops.

pub fn merge_adjacent(&mut self)

Merge adjacent spans that have identical style into a single span.

pub fn apply_style_range( &mut self, start: usize, end: usize, style_fn: impl Fn(&mut TextStyle), )

Apply a style mutation to all spans (or portions thereof) within [start, end) byte offsets (relative to the full rich-text string).

Spans are split at the boundaries as needed, then style_fn is called on each span fully contained in the range.

Trait Implementations

impl Debug for RichText

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

Formats the value using the given formatter.

impl Default for RichText

fn default() -> RichText

Returns the “default value” for a type.

impl Display for RichText

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

Formats the value using the given formatter.

impl From<&str> for RichText

fn from(s: &str) -> Self

Converts to this type from the input type.