Struct TextLayoutResult 

pub struct TextLayoutResult {
    pub width: f32,
    pub height: f32,
    pub line_height: f32,
    pub lines: Vec<LineLayout>,
    /* private fields */
}

Cached text layout result with pre-computed glyph positions.

Compute once during measure(), reuse for:

• Cursor X position rendering
• Selection highlight geometry
• Click-to-position cursor

Fields

width: f32

Total width of laid out text

height: f32

Total height of laid out text

line_height: f32

Height of a single line

lines: Vec<LineLayout>

Line layout information

Implementations

impl TextLayoutResult

pub fn new( width: f32, height: f32, line_height: f32, glyph_x_positions: Vec<f32>, char_to_byte: Vec<usize>, lines: Vec<LineLayout>, text: &str, ) -> Self

Creates a new layout result with the given glyph positions.

pub fn get_cursor_x(&self, byte_offset: usize) -> f32

Returns X position for cursor at given byte offset. O(1) lookup from pre-computed positions.

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

Returns byte offset for X position. O(log n) binary search through glyph positions.

pub fn is_valid_for(&self, text: &str) -> bool

Checks if this layout result is valid for the given text.

pub fn monospaced(text: &str, char_width: f32, line_height: f32) -> Self

Creates a simple layout for monospaced text (for fallback).

Trait Implementations

impl Clone for TextLayoutResult

fn clone(&self) -> TextLayoutResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TextLayoutResult

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

Formats the value using the given formatter.