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Recolor Artwork: color sliders edit the selected row's new color in a chosen mode

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The Assign tab gets a Color Mode menu (HSB, RGB, CMYK, Lab, and Tint when
the row's new color is a spot color of the Limit to Library library) and
its sliders under the rows. They edit the first selected row's new color
and are disabled with no row selected. Once they have edited a color in a
mode, the preview and OK send recolor.apply with model "new", so the art
takes the color in that mode.

recolor.apply rows take an optional tint (percent, default 100): art linked
to the row's global or spot library swatch takes that share of its tint.
recolor.randomize keeps a row's tint.
This commit is contained in:
dotCooCoo
2026-10-31 21:42:42 -07:00
parent 58e98510d1
commit 46cb088eae
7 changed files with 418 additions and 26 deletions
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crates/engine/src/tests/recolor.rs
+27
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@@ -537,6 +537,33 @@ fn recolor_to_a_library_spot_colour_links_it_and_adds_the_swatch() {
assert_eq!(r["swatches"], json!(["Leaf"]));
}
/// A row's `tint` gives the art linked to the row's spot color that share of its tint;
/// randomize keeps it on the row, and a tint that is not a number is refused.
#[test]
fn a_rows_tint_tints_the_spot_color_the_art_links_to() {
let mut s = session();
run(&mut s, "swatch.new", json!({"name": "Ink 101", "color": {"c": 0.0, "m": 1.0, "y": 0.0, "k": 0.0}, "spot": true}));
let data = run(&mut s, "swatch.library.save", json!({"names": ["Ink 101"], "name": "Inks"}))["data"].as_str().unwrap().to_string();
let lib = run(&mut s, "swatch.library.load", json!({"data": data, "name": "inks.vcswatches"}))["library"].as_str().unwrap().to_string();
run(&mut s, "swatch.delete", json!({"names": ["Ink 101"]}));
let red = rect(&mut s, json!("#e02010"));
select_all(&mut s);
let map = json!([{"from": ["rgb 224 32 16"], "to": "cmyk 0 100 0 0", "tint": 40}]);
run(&mut s, "recolor.apply", json!({"map": map, "limitTo": lib}));
match s.doc().unwrap().doc.node(red).unwrap().appearance.fill_paint() {
vectorcraft_color::Paint::Solid { color, swatch, tint } => {
assert_eq!(swatch.as_deref(), Some("Ink 101"), "linked to the spot color");
assert!((tint - 0.4).abs() < 1e-4, "at the row's tint: {tint}");
assert!(close(color, Color::cmyk(0.0, 1.0, 0.0, 0.0).tinted(0.4)), "{color:?}");
}
p => panic!("{p:?}"),
}
let r = run(&mut s, "recolor.randomize", json!({"map": map, "order": false, "saturationBrightness": false}));
assert_eq!(r["map"][0]["tint"], json!(40.0), "{r}");
let e = s.execute("recolor.apply", &json!({"map": [{"from": ["rgb 224 32 16"], "to": "#ff0000", "tint": "40"}]})).unwrap_err();
assert!(e.to_string().contains("`tint` must be a number"), "{e}");
}
#[test]
fn model_param_chooses_the_model_of_the_new_colour() {
// RGB art in a CMYK document: by default a CMYK replacement comes out RGB (#2170).