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keep style info

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This commit is contained in:
vcoppe
2026-10-03 16:43:53 +02:00
parent bff84fa24c
commit bddceb28aa
1 changed files with 30 additions and 1 deletions
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gpx-rs/engine/src/engine/command/edit/new_track.rs
+30 -1
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@@ -12,11 +12,22 @@ impl Apply for NewTrack {
impl Editor for NewTrack {
fn file(&mut self, file: &mut File) -> Edit {
file.trk.push(Track::default());
let mut track = Track::default();
track.info.color = common(file, |t| &t.info.color);
track.info.opacity = common(file, |t| &t.info.opacity);
track.info.width = common(file, |t| &t.info.width);
file.trk.push(track);
Edit::Changed
}
}
/// Returns the value of a style attribute if all existing tracks agree on it.
fn common<T: Clone + PartialEq>(file: &File, get: impl Fn(&Track) -> &Option<T>) -> Option<T> {
let mut tracks = file.trk.iter();
let first = get(tracks.next()?);
tracks.all(|t| get(t) == first).then(|| first.clone())?
}
#[cfg(test)]
mod tests {
use crate::{New, engine::command::fixture::Fixture};
@@ -33,4 +44,22 @@ mod tests {
assert_eq!(file.trk.len(), 2);
assert_ne!(file.trk[0].id, file.trk[1].id);
}
#[test]
fn test_new_track_inherits_agreeing_style_only() {
let mut fx = Fixture::default();
New { name: "file" }.apply(&mut fx.state()).unwrap();
NewTrack.apply(&mut fx.state()).unwrap();
NewTrack.apply(&mut fx.state()).unwrap();
let file = std::rc::Rc::make_mut(fx.files.values_mut().next().unwrap());
for (i, trk) in file.trk.iter_mut().enumerate() {
trk.info.color = Some("ff0000".into());
trk.info.opacity = Some(0.5 + i as f64 * 0.1);
}
NewTrack.apply(&mut fx.state()).unwrap();
let info = &fx.files.values().next().unwrap().trk[2].info;
assert_eq!(info.color.as_deref(), Some("ff0000"));
assert_eq!(info.opacity, None);
assert_eq!(info.width, None);
}
}