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Introduce a dedicated data structure for text queries

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Add an IndexableText structure for text queries.
Instead of linear search for a node this now uses a HashMap.
Remove the now irrelevant fields from TextDisplayItem.
This commit is contained in:
Pyfisch 2018-02-11 21:00:32 +01:00
parent a5115139ba
commit 2d74bcfea5
6 changed files with 70 additions and 49 deletions
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4
components/gfx/text/text_run.rs
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@ -333,10 +333,10 @@ impl<'a> TextRun {
}
/// Returns the index in the range of the first glyph advancing over given advance
pub fn range_index_of_advance(&self, range: &Range<ByteIndex>, advance: f32) -> usize {
pub fn range_index_of_advance(&self, range: &Range<ByteIndex>, advance: Au) -> usize {
// TODO(Issue #199): alter advance direction for RTL
// TODO(Issue #98): using inter-char and inter-word spacing settings when measuring text
let mut remaining = Au::from_f32_px(advance);
let mut remaining = advance;
self.natural_word_slices_in_range(range)
.map(|slice| {
let (slice_index, slice_advance) =