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Reset fades at cut edges in copy_range

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Found while testing crates/engine/src/edit.rs:157-174

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
NetterSilver
2026-10-22 09:54:38 +02:00
co-authored by Claude Opus 5.5
parent 9b8283b908
commit 590ac97e93
1 changed files with 16 additions and 0 deletions
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crates/engine/src/edit.rs
+16
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@@ -149,9 +149,11 @@ pub fn copy_range(s: &Session, track: TrackId, range: Range) -> Vec<Clip> {
let old = part.start;
part.trim_start_to(isect.start);
rebase_midi_start(&mut part, old, t);
part.fade_in = Fade::default();
}
if isect.end < part.end() {
part.trim_end_to(isect.end);
part.fade_out = Fade::default();
}
part.start -= range.start;
out.push(part);
@@ -868,6 +870,20 @@ mod tests {
s.track(t).unwrap().clips().iter().map(|c| (c.start, c.length, c.source_offset())).collect()
}
#[test]
fn copy_range_resets_fades_at_cut_edges() {
let (mut s, t) = session_with_clip();
if let Some(c) = s.track_mut(t).and_then(|t| t.playlist_mut()).and_then(|p| p.clips.first_mut()) {
c.fade_in = Fade { len: 100, shape: FadeShape::Linear, curvature: 0.0 };
c.fade_out = Fade { len: 100, shape: FadeShape::Linear, curvature: 0.0 };
}
let fades = |r: Range| -> Vec<(Samples, Samples)> { copy_range(&s, t, r).iter().map(|c| (c.fade_in.len, c.fade_out.len)).collect() };
assert_eq!(fades(Range::new(2000, 3000)), vec![(0, 0)]);
assert_eq!(fades(Range::new(0, 3000)), vec![(100, 0)]);
assert_eq!(fades(Range::new(2000, 6000)), vec![(0, 100)]);
assert_eq!(fades(Range::new(0, 6000)), vec![(100, 100)]);
}
#[test]
fn separate_splits_and_heal_rejoins() {
let (mut s, t) = session_with_clip();