Struct layout_2013::text::TextRunScanner

pub struct TextRunScanner {
    pub clump: LinkedList<Fragment>,
}

A stack-allocated object for scanning an inline flow into TextRun-containing TextFragments.

Fields

clump: LinkedList<Fragment>

Implementations

impl TextRunScanner

pub fn new() -> TextRunScanner

pub fn scan_for_runs( &mut self, font_context: &FontContext, fragments: LinkedList<Fragment>, ) -> InlineFragments

fn flush_clump_to_list( &mut self, font_context: &FontContext, out_fragments: &mut Vec<Fragment>, paragraph_bytes_processed: &mut usize, bidi_levels: Option<&[Level]>, last_whitespace: bool, linebreaker: &mut Option<LineBreakLeafIter>, ) -> bool

A “clump” is a range of inline flow leaves that can be merged together into a single fragment. Adjacent text with the same style can be merged, and nothing else can.

The flow keeps track of the fragments contained by all non-leaf DOM nodes. This is necessary for correct painting order. Since we compress several leaf fragments here, the mapping must be adjusted.