Effects: Expand Appearance and export give each Transform copy of a gradient path its own gradient (#2490)

A path with a Transform effect that makes copies and a gradient was still merged into one path by bake_leaf and expand_leaf, so the gradient spanned every copy. Route it through reshape / expand_outlined like the renderer does.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
vangel76
2026-10-17 13:20:26 +07:00
committed by bflatastic
co-authored by Claude Opus 5.5
parent a6012d86e8
commit 7cd6b5d983
3 changed files with 71 additions and 3 deletions
+26 -2
View File
@@ -504,10 +504,11 @@ pub(crate) fn expand_node(d: &mut Document, id: NodeId, brushes: &[vectorcraft_b
expand_pieces(d, &mut m, false, &mut stroke_art);
m
})
} else if matches!(n.kind, NodeKind::Path { .. } | NodeKind::Compound { .. }) {
} else if matches!(n.kind, NodeKind::Path { .. } | NodeKind::Compound { .. }) && !effects::has_gradient_copies(&v) {
effects::expand_leaf(d, &v, &mut stroke_art)
} else {
// Type, images, symbol instances, live objects: through their outlines.
// Type, images, symbol instances, live objects (and paths whose Transform effect copies
// them with a gradient): through their outlines.
let symbol = match &n.kind {
NodeKind::SymbolInstance { symbol, .. } => d.symbols.iter().find(|s| s.name == *symbol).map(|s| s.art.clone()),
_ => None,
@@ -995,4 +996,27 @@ mod tests {
assert_eq!(ch.len(), 1);
assert!((ch[0].geometric_bounds().unwrap().width() - 50.0).abs() < 1e-6);
}
#[test]
fn expand_appearance_gives_each_copy_of_a_transform_its_own_gradient() {
use vectorcraft_color::{Color, Gradient, GradientKind, GradientPaint, GradientStop, Paint};
let (mut s, id) = session_with_rect();
let stops = vec![GradientStop::new(0.0, Color::rgb(1.0, 0.0, 0.0)), GradientStop::new(1.0, Color::rgb(0.0, 0.0, 1.0))];
let ramp = Paint::Gradient(Box::new(GradientPaint::new(Gradient { kind: GradientKind::Linear, stops })));
s.edit("gradient", |d, _| {
let n = d.node_mut(id).unwrap();
n.appearance.set_fill(ramp);
Ok(())
})
.unwrap();
s.execute("effect.apply", &json!({"effect":"distort.transform","ids":[id.0],"item":null})).unwrap();
s.execute("effect.setParams", &json!({"index":0,"params":{"moveH":150,"copies":2},"ids":[id.0],"item":null})).unwrap();
s.execute("effect.expandAppearance", &json!({"ids":[id.0]})).unwrap();
let mut boxes = vec![];
node(&s, id).walk(&mut |n| {
if matches!(n.kind, NodeKind::Path { .. }) && matches!(n.appearance.fill_paint(), Paint::Gradient(_)) {
boxes.push(n.geometric_bounds().unwrap().width());
}
});
assert_eq!(boxes, vec![100.0; 3], "three squares, each with its own gradient");
}
}