Struct TextLayout 

pub struct TextLayout {
    pub shaped: ShapedText,
    pub align: TextAlign,
    pub bounds: (f32, f32),
}

A shaped text block with alignment and bounds information.

Fields

shaped: ShapedText

The raw shaped text (glyph positions, line metrics).

align: TextAlign

Requested alignment.

bounds: (f32, f32)

(max_width, max_height) — the layout box dimensions.

Implementations

impl TextLayout

pub fn new( pipeline: &mut TextPipeline, text: &str, style: &TextStyle, max_width: f32, align: TextAlign, ) -> Result<Self, TextError>

Shape text and apply align within max_width.

Errors

Propagates shaping errors from the pipeline.

pub fn align_glyphs(&self) -> Vec<Vec<GlyphPosition>>

Apply alignment offsets to glyph positions within bounds.

Returns per-line glyph positions adjusted for the requested alignment.

pub fn hit_test_fast(&self, x: f32) -> usize

Fast O(log n) hit-test over a single horizontal sweep using binary search over sorted glyph x-positions.

Returns the glyph index (into the concatenated flat list of all glyphs across all lines) of the entry whose left edge is closest to x. This is O(log n) in the total number of glyphs, vs. the O(n) linear scan in Self::hit_test.

Unlike Self::hit_test this method ignores the y-coordinate and operates on the full concatenated glyph stream — callers that need per-line hit-testing should pre-filter by line before calling.

pub fn hit_test(&self, x: f32, y: f32) -> usize

Return the byte offset of the glyph closest to (x, y).

Useful for click-to-caret positioning.