leyoda/cosmic-text
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add skip_shaping flag to avoid expensive shaping when not needed

Browse source
This commit is contained in:
Héctor Ramón Jiménez 2023-04-19 00:24:43 +02:00
parent bfb5eefbfa
commit ad111a1df1
No known key found for this signature in database
GPG key ID: 140CC052C94F138E
5 changed files with 126 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

13
src/buffer_line.rs
View file

@ -12,13 +12,14 @@ pub struct BufferLine {
align: Option<Align>,
shape_opt: Option<ShapeLine>,
layout_opt: Option<Vec<LayoutLine>>,
skip_shaping: bool,
}
impl BufferLine {
/// Create a new line with the given text and attributes list
/// Cached shaping and layout can be done using the [`Self::shape`] and
/// [`Self::layout`] functions
pub fn new<T: Into<String>>(text: T, attrs_list: AttrsList) -> Self {
pub fn new<T: Into<String>>(text: T, attrs_list: AttrsList, skip_shaping: bool) -> Self {
Self {
text: text.into(),
attrs_list,
@ -26,6 +27,7 @@ impl BufferLine {
align: None,
shape_opt: None,
layout_opt: None,
skip_shaping,
}
}
@ -142,7 +144,7 @@ impl BufferLine {
let attrs_list = self.attrs_list.split_off(index);
self.reset();
let mut new = Self::new(text, attrs_list);
let mut new = Self::new(text, attrs_list, self.skip_shaping);
new.wrap = self.wrap;
new
}
@ -167,7 +169,12 @@ impl BufferLine {
/// Shape line, will cache results
pub fn shape(&mut self, font_system: &mut FontSystem) -> &ShapeLine {
if self.shape_opt.is_none() {
self.shape_opt = Some(ShapeLine::new(font_system, &self.text, &self.attrs_list));
self.shape_opt = Some(ShapeLine::new(
font_system,
&self.text,
&self.attrs_list,
self.skip_shaping,
));
self.layout_opt = None;
}
self.shape_opt.as_ref().expect("shape not found")