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.ai import: objects other than type keep some Distort & Transform effects live

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An art style with a Distort & Transform effect opened every object but
type as its drawn look. Objects other than type now open as themselves
with these effects live:

- Any object takes a Tweak that moves nothing and Pucker & Bloat at 0,
  beside the effects it already took.
- A path, compound path or group takes Transform without copies, or a
  Free Distort whose corners make a parallelogram, when it is the only
  effect. Neither the style nor anything in the object may paint with a
  gradient or pattern. Everything in the object must be a path, compound
  path or group without a clip, an opacity mask or effects of its own.
  When Transform scales, rotates or reflects, nothing in the object may
  be stroked.
- An unstroked path or compound path whose segments are all straight
  takes Twist when it is the only effect.

Other objects keep the drawn look, as do Zig Zag, Pucker & Bloat of
another amount, a Free Distort with other corners and Transform copies.

Docs: docs/file-format-parity.md, docs/target-app-parity.md.
This commit is contained in:
dotCooCoo
2026-11-06 01:20:04 +07:00
committed by bflatastic
parent c07f0087ce
commit ddb64fceb6
7 changed files with 450 additions and 25 deletions
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crates/engine/tests/import_fuzz.rs
+12 -4
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@@ -4547,8 +4547,9 @@ proptest! {
/// Art styles with a Distort & Transform effect (Transform, Free Distort, Pucker & Bloat, Roughen,
/// Tweak, Twist, Zig Zag) whose dictionary holds any of its entries, and unknown ones, as any kind,
/// with any value (huge, tiny, not a number, a string), repeated or left out, on a path and on type,
/// on the whole object or on its fill.
/// with any value (huge, tiny, not a number, a string), repeated or left out, on a path, on type and
/// on a group nested any number of levels around a curved path, stroked or not, on the whole object
/// or on its fill.
#[test]
fn ai_distort_effects_never_panic(
name in prop::sample::select(vec![
@@ -4575,6 +4576,8 @@ proptest! {
],
), 0..24),
on_fill in any::<bool>(),
depth in 0usize..300,
stroked in any::<bool>(),
) {
use vectorcraft_testkit::ai;
let keys: String = entries.iter().map(|(k, kind, v)| format!("{v} /{kind} ({k}) ,\n")).collect();
@@ -4589,10 +4592,15 @@ proptest! {
};
let styles = format!("%AI9_BeginArtStyles\n/KnownStyle :\n(Fx) /Name ,\n/ActiveStyle :\n{root}%AI9_EndArtStyles\n");
let hidden = ai::rect(20.0, 20.0, 80.0, 60.0).replace('\n', "\n%_");
let paint = if stroked { "0 0 1 0 K\n2 w\nB\n" } else { "f\n" };
let curve = format!("0 0 1 0 k\n20 70 m\n20 90 80 90 80 70 c\n80 50 20 50 20 70 c\n{paint}");
let nested = format!("0 Ae\n{}{curve}{}", "u\n".repeat(depth + 1), "U\n".repeat(depth + 1)).replace('\n', "\n%_");
let art = format!(
"0 Ae\nu\n0 0 1 0 k\n{}f\nU\n%_{hidden}f\n1 (Fx) XW\nu\n/AI11Text :\n1 /FreeUndo ,\n;\n0 0 1 0 k\n{}f\nU\n1 (Fx) XW\n",
"0 Ae\nu\n0 0 1 0 k\n{}f\nU\n%_{hidden}f\n1 (Fx) XW\nu\n/AI11Text :\n1 /FreeUndo ,\n;\n0 0 1 0 k\n{}f\nU\n1 (Fx) XW\n\
0 Ae\nu\n0 0 1 0 k\n{}f\nU\n%_{nested}1 (Fx) XW\n",
ai::rect(20.0, 20.0, 80.0, 60.0),
ai::rect(100.0, 20.0, 180.0, 60.0)
ai::rect(100.0, 20.0, 180.0, 60.0),
ai::rect(20.0, 50.0, 80.0, 90.0)
);
let data = ai::editing_data(200.0, 100.0, &format!("{styles}{}", ai::layer("L", &art)));
survive("distort art style", || Some(vectorcraft_eps::layered_ai(data.as_bytes(), Document::new(200.0, 100.0), vec![], false, false, 1.0).0))?;