Struct LineLayout 

pub struct LineLayout<'a> { /* private fields */ }

The layout pass: one paragraph → lines that fit the measure.

Implementations

impl LineLayout<'_>

pub fn shape( &self, text: &str, style: &ParagraphStyle, ) -> Option<Vec<ShapedRun>>

One string as shaped runs, set the way style asks for it. The counterpart of layout for text that is not broken into lines: page furniture, an ornament, an initial letter.

impl<'a> LineLayout<'a>

pub fn new(registry: &'a FontRegistry) -> Self

A layout pass over the faces in registry.

impl LineLayout<'_>

pub fn strut(&self, style: &ParagraphStyle) -> Strut

The paragraph’s strut: the minimum box every one of its lines occupies, whatever the runs on it.

pub fn line_box(&self, runs: &[ShapedRun], style: &ParagraphStyle) -> LineBox

The box one line occupies: the strut, grown by any run taller than it around the shared baseline.

pub fn layout( &self, inlines: &[Inline], style: &ParagraphStyle, measure: impl Into<Measure>, options: LineBreakOptions, ) -> Vec<Line>

Breaks one paragraph into lines of at most measure_pt points, every inline taking the block’s own style.

pub fn layout_styled( &self, inlines: &[Inline], style: &ParagraphStyle, styles: &dyn InlineStyles, measure: &Measure, options: LineBreakOptions, opening: Opening, ) -> Vec<Line>

The same, with the style tree answering for each inline and opening saying what sets the line the paragraph opens on apart from the rest of it.

pub fn layout_shaped( &self, inlines: &[Inline], style: &ParagraphStyle, styles: &dyn InlineStyles, measure: &Measure, options: LineBreakOptions, opening: Opening, ) -> (Broken, Option<Shaped>)

The same, handing back the shaped paragraph beside the lines.

A caller that can break this paragraph again keeps it. LineLayout::rebreak sets the same text to a different profile without shaping it twice.

pub fn rebreak(&self, shaped: &Shaped, measure: &Measure, from: usize) -> Broken

Breaks a paragraph that was already shaped to measure, starting from the end of the line from, which is 0 for the whole of it.

The style over the opening line is not held to the text it covered before. The profile decides where the lines end. A line pinned to a width it no longer has runs past that width.