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dotCooCoo
99f896f9b8
- The link watch and links.updateChanged look at a DCS file's plate files of their own, so a changed plate file is read again. - links.update and links.relink apply the file's clipping path to the images in symbols, graph designs, patterns and masks too. When the new file has no clipping path, a clip group holding the old file's clipping path loses that path and stays as a plain group of the image, keeping its id, name, visibility and transparency. The image keeps that path with its plates to tell it from a clipping mask made in the document; a clipping path given another fill rule in the document stays. An even-odd clipping path in the file is kept as the same area under the nonzero rule. - links.update and links.relink return the swatch warnings file.place gives, including two files that add one ink in two colors. - links.relink with copy fails for a DCS file with plate files of its own. - file.place answers the image id of a clipped DCS placement as image, and checks page and crop for a DCS file as it does for an EPS file. - Print separations and Separations Preview take a spot plate's color from the document's swatch of its ink, and a reduced image's plates keep their coverage. - Show DCS Transparency Interactions counts a transparent DCS image and characters filled or stroked with a transparent gradient. - %%PlateFile names keep their spaces, and header bytes that are not UTF-8 are read as Latin-1. - A plate program that draws more than one image, art besides its image, or its image through a clipping path is an error naming the plate instead of printing the wrong ink. - Nested clipping paths around the composite clip the image together. - A kept image with more plates than are read, or more TIFF directories than its composite and plates, is the CMYK image of its composite only, not a set of plates cut short. - swatch.unused counts a spot or process swatch as used only while an image the art shows has a spot plate of its name.
698 lines
37 KiB
Rust
698 lines
37 KiB
Rust
//! DCS files placed with Link (`file.place`): one linked image of their plates, their spot plates
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//! as spot swatches, clipped by their composite's clipping path, never opened or embedded; and
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//! the Links panel's Show DCS Transparency Interactions (`links.list` with `dcsTransparency`).
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//! The files are made from scratch as http://www.telegraphics.net/doc/DCS.txt describes them.
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use std::path::PathBuf;
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use serde_json::{Value, json};
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use vectorcraft_color::{Color, Paint};
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use vectorcraft_doc::{Node, NodeKind};
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use crate::*;
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fn session() -> Session {
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let mut s = Session::new();
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s.execute("file.new", &json!({"width": 400, "height": 300})).unwrap();
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s
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}
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/// A fresh scratch folder for one test.
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fn temp_dir(name: &str) -> PathBuf {
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let d = std::env::temp_dir().join(format!("vc-dcs-{name}-{}", std::process::id()));
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let _ = std::fs::remove_dir_all(&d);
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std::fs::create_dir_all(&d).unwrap();
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d
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}
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/// A plate program: one 2 × 2 grayscale image (`gray`, row by row) on a 20 × 10 pt page.
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fn plate_eps(gray: [u8; 4]) -> String {
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let hex: String = gray.iter().map(|g| format!("{g:02x}")).collect();
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format!(
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"%!PS-Adobe-3.0 EPSF-3.0\n%%BoundingBox: 0 0 20 10\n%%EndComments\n20 10 scale\n2 2 8 [2 0 0 -2 0 2] <{hex}> image\nshowpage\n%%Trailer\n%%EOF\n"
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)
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}
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/// A single-file DCS 2.0 file of `plates` (name, plate program), with the header lines `extra`; its
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/// composite is drawn through a clipping path, the left half of the page.
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fn single_file(plates: &[(&str, String)], extra: &str) -> Vec<u8> {
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let header = |offsets: &[usize]| {
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let mut s = String::from("%!PS-Adobe-3.0 EPSF-3.0\n%%BoundingBox: 0 0 20 10\n");
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s.push_str(extra);
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for ((name, eps), at) in plates.iter().zip(offsets) {
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s.push_str(&format!("%%PlateFile: ({name}) EPS #{at:010} {:010}\n", eps.len()));
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}
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s.push_str("%%EndComments\ngsave newpath 0 0 moveto 10 0 lineto 10 10 lineto 0 10 lineto closepath clip newpath\n");
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s.push_str("20 10 scale 2 2 8 [2 0 0 -2 0 2] <808080808080808080808080> false 3 colorimage grestore showpage\n%%EOF\n");
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s
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};
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let main = header(&vec![0; plates.len()]).len();
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let mut offsets = vec![];
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let mut at = main;
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for (_, eps) in plates {
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offsets.push(at);
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at += eps.len();
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}
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let mut out = header(&offsets).into_bytes();
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for (_, eps) in plates {
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out.extend(eps.as_bytes());
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}
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out
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}
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/// Cyan solid on the top row, PANTONE 185 C at 50% on the left column.
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fn two_plates() -> Vec<u8> {
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single_file(
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&[("Cyan", plate_eps([0, 0, 255, 255])), ("PANTONE 185 C", plate_eps([127, 255, 127, 255]))],
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"%%DocumentCustomColors: (PANTONE 185 C)\n%%CMYKCustomColor: 0 .91 .76 0 (PANTONE 185 C)\n",
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)
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}
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fn write(dir: &std::path::Path, name: &str, bytes: &[u8]) -> String {
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let p = dir.join(name);
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std::fs::write(&p, bytes).unwrap();
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p.to_string_lossy().into_owned()
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}
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/// The image inside placed object `id` (itself, or the image of its clipping group).
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fn image_of(s: &Session, id: &Value) -> Node {
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let n = s.doc().unwrap().doc.node(NodeId(id.as_u64().unwrap())).unwrap().clone();
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let mut found = None;
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n.walk(&mut |c: &Node| {
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if found.is_none() && matches!(c.kind, NodeKind::Image(_)) {
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found = Some(c.clone());
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}
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});
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found.expect("an image")
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}
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fn error(s: &mut Session, cmd: &str, p: Value) -> String {
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s.execute(cmd, &p).unwrap_err().to_string()
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}
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#[test]
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fn a_dcs_file_places_as_one_linked_image_of_its_plates() {
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let dir = temp_dir("place");
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let path = write(&dir, "pic.eps", &two_plates());
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let mut s = session();
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let r = s.execute("file.place", &json!({ "path": path, "at": [100, 100] })).unwrap();
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assert_eq!(r["linked"], true);
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assert_eq!(r["warnings"], json!([]));
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let id = &r["ids"][0];
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let placed = s.doc().unwrap().doc.node(NodeId(id.as_u64().unwrap())).unwrap().clone();
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let NodeKind::Group { children, clip: true } = &placed.kind else { panic!("a clipping group: {:?}", placed.kind) };
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assert!(matches!(children[0].kind, NodeKind::Path { clipping: true, .. }), "the composite's clipping path");
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assert_eq!(children[0].geometric_bounds().map(|b| b.width().round()), Some(10.0));
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assert_eq!(r["width"].as_f64().map(f64::round), Some(10.0), "clipped to the left half of its 20 pt page");
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let image = image_of(&s, id);
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let NodeKind::Image(im) = &image.kind else { not_an_image() };
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assert!(im.link.as_ref().is_some_and(|l| l.path.ends_with("pic.eps")));
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let doc = &s.doc().unwrap().doc;
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let plates = doc.images[&im.key].separated().expect("its plates are kept");
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assert_eq!(plates.plates.iter().map(|p| p.name.as_str()).collect::<Vec<_>>(), ["Cyan", "PANTONE 185 C"]);
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assert_eq!(plates.plates[1].data, [128, 0, 128, 0]);
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let sw = doc.swatch("PANTONE 185 C").expect("a spot swatch for the spot plate");
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assert!(sw.spot);
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assert_eq!(sw.paint, Paint::solid(Color::cmyk(0.0, 0.91, 0.76, 0.0)));
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assert!(!doc.swatches_iter().any(|w| w.spot && w.name == "Cyan"), "process plates add no spot swatch");
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let list = s.execute("links.list", &json!({})).unwrap();
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assert_eq!(list["links"][0]["format"], "DCS");
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assert_eq!(list["links"][0]["status"], "ok");
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let info = s.execute("file.place.info", &json!({ "path": path })).unwrap();
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assert_eq!(info["plates"], json!(["Cyan", "PANTONE 185 C"]));
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assert_eq!(info["colorMode"], "CMYK");
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assert_eq!(info["pixelWidth"], 2);
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// One undo step takes the swatch away too.
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s.execute("edit.undo", &json!({})).unwrap();
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assert!(s.doc().unwrap().doc.swatch("PANTONE 185 C").is_none());
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}
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fn not_an_image() -> ! {
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panic!("an image")
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}
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#[test]
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fn a_dcs_file_is_never_opened_or_embedded() {
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let dir = temp_dir("refused");
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let bytes = two_plates();
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let path = write(&dir, "pic.eps", &bytes);
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let mut s = session();
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let only = "DCS files can only be placed linked";
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assert!(error(&mut s, "file.place", json!({ "path": path, "link": false })).contains(only));
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let data = json!({ "name": "pic.eps", "dataBase64": vectorcraft_format::base64_encode(&bytes) });
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assert!(error(&mut s, "file.place", data).contains(only), "bytes alone can't be linked");
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assert!(error(&mut s, "document.open", json!({ "path": path })).contains(only));
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let r = s.execute("file.place", &json!({ "path": path })).unwrap();
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let image = image_of(&s, &r["ids"][0]);
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let e = error(&mut s, "links.embed", json!({ "ids": [image.id.0] }));
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assert!(e.contains(only), "{e}");
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let NodeKind::Image(im) = &image_of(&s, &r["ids"][0]).kind else { not_an_image() };
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assert!(im.link.is_some(), "still linked");
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}
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#[test]
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fn a_swatch_of_the_same_name_is_kept_with_a_warning() {
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let dir = temp_dir("swatch");
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let path = write(&dir, "pic.eps", &two_plates());
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let mut s = session();
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s.execute("swatch.new", &json!({"name": "PANTONE 185 C", "color": {"c": 0.0, "m": 1.0, "y": 1.0, "k": 0.0}, "spot": true})).unwrap();
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let r = s.execute("file.place", &json!({ "path": path })).unwrap();
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assert_eq!(r["warnings"], json!(["the document's swatch `PANTONE 185 C` is kept: it is a different color"]));
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let sw = s.doc().unwrap().doc.swatch("PANTONE 185 C").unwrap().clone();
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assert_eq!(sw.paint.color(), Some(Color::cmyk(0.0, 1.0, 1.0, 0.0)));
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}
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#[test]
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fn plate_files_of_their_own_are_read_from_the_dcs_files_folder() {
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let dir = temp_dir("files");
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write(&dir, "pic.C", plate_eps([0, 255, 255, 255]).as_bytes());
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write(&dir, "pic.K", plate_eps([255, 255, 255, 0]).as_bytes());
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let main = "%!PS-Adobe-2.0 EPSF-1.2\n%%BoundingBox: 0 0 20 10\n%%CyanPlate: OldDisk:Scans:pic.C\n%%BlackPlate: pic.K\n%%EndComments\nshowpage\n";
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let path = write(&dir, "pic.eps", main.as_bytes());
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let mut s = session();
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let r = s.execute("file.place", &json!({ "path": path })).unwrap();
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let image = image_of(&s, &r["ids"][0]);
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assert!(matches!(image.kind, NodeKind::Image(_)), "no clipping path without a composite");
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let NodeKind::Image(im) = &image.kind else { not_an_image() };
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let plates = s.doc().unwrap().doc.images[&im.key].separated().unwrap();
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assert_eq!(plates.plates[0].data, [255, 0, 0, 0], "the plate file found by its name in the folder");
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assert_eq!(plates.plates[1].data, [0, 0, 0, 255]);
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std::fs::remove_file(dir.join("pic.K")).unwrap();
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let e = error(&mut s, "file.place", json!({ "path": path }));
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assert!(e.contains("the Black plate can't be read") && e.contains("`pic.K` is not in the DCS file's folder"), "{e}");
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}
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#[test]
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fn update_link_reads_the_plates_again() {
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let dir = temp_dir("update");
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let path = write(&dir, "pic.eps", &two_plates());
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let mut s = session();
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let r = s.execute("file.place", &json!({ "path": path })).unwrap();
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let id = image_of(&s, &r["ids"][0]).id;
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let changed = single_file(&[("Cyan", plate_eps([0, 0, 0, 0])), ("Varnish", plate_eps([255; 4]))], "%%CMYKCustomColor: 0 0 .2 0 (Varnish)\n");
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std::fs::write(&path, &changed).unwrap();
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let u = s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
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assert_eq!(u["updated"], json!([id.0]));
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let NodeKind::Image(im) = &s.doc().unwrap().doc.node(id).unwrap().kind else { not_an_image() };
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let plates = s.doc().unwrap().doc.images[&im.key].separated().unwrap();
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assert_eq!(plates.plates.len(), 2);
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assert_eq!(plates.plates[0].data, [255; 4]);
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let sw = s.doc().unwrap().doc.swatch("Varnish").expect("a spot swatch for the plate the file gained");
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assert!(sw.spot);
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assert_eq!(sw.paint, Paint::solid(Color::cmyk(0.0, 0.0, 0.2, 0.0)));
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}
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#[test]
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fn update_link_takes_the_files_new_clipping_path() {
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let dir = temp_dir("update-clip");
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let path = write(&dir, "pic.eps", &two_plates());
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let mut s = session();
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let r = s.execute("file.place", &json!({ "path": path, "at": [100, 100] })).unwrap();
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let group = NodeId(r["ids"][0].as_u64().unwrap());
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let id = image_of(&s, &r["ids"][0]).id;
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let clip_width = |s: &Session| {
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let NodeKind::Group { children, .. } = &s.doc().unwrap().doc.node(group).unwrap().kind else { panic!("a clipping group") };
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children[0].geometric_bounds().map(|b| b.width())
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};
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let before = clip_width(&s).unwrap();
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// The same file, its composite now drawn through the left quarter of the page (same length,
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// so the plates stay where the header says).
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let text = String::from_utf8(two_plates()).unwrap().replacen("10 0 lineto 10 10 lineto", " 5 0 lineto 5 10 lineto", 1);
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std::fs::write(&path, text.as_bytes()).unwrap();
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let u = s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
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assert_eq!(u["updated"], json!([id.0]));
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let after = clip_width(&s).unwrap();
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assert!((after - before / 2.0).abs() < 1e-6, "the clipping path follows the file: {before} → {after}");
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}
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#[test]
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fn update_link_clips_an_image_whose_file_gained_a_clipping_path() {
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let dir = temp_dir("update-gained-clip");
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// The composite drawn without its clipping path (same length).
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let unclipped = String::from_utf8(two_plates()).unwrap().replacen("closepath clip newpath", "closepath newpath ", 1);
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let path = write(&dir, "pic.eps", unclipped.as_bytes());
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let mut s = session();
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let r = s.execute("file.place", &json!({ "path": path })).unwrap();
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let id = NodeId(r["ids"][0].as_u64().unwrap());
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assert!(matches!(s.doc().unwrap().doc.node(id).unwrap().kind, NodeKind::Image(_)), "no clipping path, no group");
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std::fs::write(&path, two_plates()).unwrap();
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s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
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let doc = &s.doc().unwrap().doc;
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let group = doc.node(doc.parent_of(id).expect("a parent")).unwrap();
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let NodeKind::Group { children, clip: true } = &group.kind else { panic!("a clipping group: {:?}", group.kind) };
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assert_eq!(children[0].geometric_bounds().map(|b| b.width().round()), Some(10.0), "the left half of the page");
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}
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#[test]
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fn a_changed_plate_file_marks_the_link_modified() {
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let dir = temp_dir("plate-changed");
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write(&dir, "pic.C", plate_eps([0, 255, 255, 255]).as_bytes());
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let main = "%!PS-Adobe-2.0 EPSF-1.2\n%%BoundingBox: 0 0 20 10\n%%CyanPlate: pic.C\n%%EndComments\nshowpage\n";
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let path = write(&dir, "pic.eps", main.as_bytes());
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let mut s = session();
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let r = s.execute("file.place", &json!({ "path": path })).unwrap();
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let id = image_of(&s, &r["ids"][0]).id;
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assert_eq!(s.execute("links.list", &json!({})).unwrap()["links"][0]["status"], "ok");
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// Only the plate file changes (a size of its own, so the change shows whatever the clock).
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write(&dir, "pic.C", format!("{}% more\n", plate_eps([255, 255, 255, 0])).as_bytes());
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assert_eq!(s.execute("links.list", &json!({})).unwrap()["links"][0]["status"], "modified");
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let u = s.execute("links.update", &json!({})).unwrap();
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assert_eq!(u["updated"], json!([id.0]));
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let NodeKind::Image(im) = &s.doc().unwrap().doc.node(id).unwrap().kind else { not_an_image() };
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assert_eq!(s.doc().unwrap().doc.images[&im.key].separated().unwrap().plates[0].data, [0, 0, 0, 255]);
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assert_eq!(s.execute("links.list", &json!({})).unwrap()["links"][0]["status"], "ok");
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std::fs::remove_file(dir.join("pic.C")).unwrap();
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assert_eq!(s.execute("links.list", &json!({})).unwrap()["links"][0]["status"], "modified", "a plate file that is gone");
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}
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#[test]
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fn the_link_watch_reads_the_link_again_when_only_a_plate_file_changes() {
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let dir = temp_dir("plate-watch");
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write(&dir, "pic.C", plate_eps([0, 255, 255, 255]).as_bytes());
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let main = "%!PS-Adobe-2.0 EPSF-1.2\n%%BoundingBox: 0 0 20 10\n%%CyanPlate: pic.C\n%%EndComments\nshowpage\n";
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let path = write(&dir, "pic.eps", main.as_bytes());
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let mut s = session();
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let r = s.execute("file.place", &json!({ "path": path })).unwrap();
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let id = image_of(&s, &r["ids"][0]).id;
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let files: Vec<String> = crate::link_watch::linked_files(&s.doc().unwrap().doc).into_iter().map(|(p, _)| p).collect();
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assert!(files.iter().any(|p| p.ends_with("pic.C")), "the plate file is watched too: {files:?}");
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// The first look only remembers the files.
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assert_eq!(s.execute("links.updateChanged", &json!({})).unwrap()["updated"], json!([]));
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write(&dir, "pic.C", format!("{}% more\n", plate_eps([255, 255, 255, 0])).as_bytes());
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assert_eq!(s.execute("links.updateChanged", &json!({})).unwrap()["updated"], json!([id.0]));
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let NodeKind::Image(im) = &s.doc().unwrap().doc.node(id).unwrap().kind else { not_an_image() };
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assert_eq!(s.doc().unwrap().doc.images[&im.key].separated().unwrap().plates[0].data, [0, 0, 0, 255]);
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}
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/// The width of the clipping path of the clip group holding the image in the art of symbol
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/// `name`; `None` when no clip group holds it.
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fn symbol_clip_width(s: &Session, name: &str) -> Option<f64> {
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fn find(n: &Node) -> Option<Option<f64>> {
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if let NodeKind::Group { children, clip: true } = &n.kind
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&& let [c, im] = &children[..]
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&& matches!(im.kind, NodeKind::Image(_))
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{
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return Some(c.geometric_bounds().map(|b| b.width()));
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}
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if matches!(n.kind, NodeKind::Image(_)) {
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return Some(None);
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}
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n.children().and_then(|ch| ch.iter().find_map(|c| find(c)))
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}
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let doc = &s.doc().unwrap().doc;
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find(&doc.symbols.iter().find(|w| w.name == name).expect("the symbol").art).expect("an image in the symbol")
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}
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#[test]
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fn update_link_takes_the_files_clipping_path_into_symbols_too() {
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let dir = temp_dir("update-symbol-clip");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
let r = s.execute("file.place", &json!({ "path": path, "at": [100, 100] })).unwrap();
|
||
let id = image_of(&s, &r["ids"][0]).id;
|
||
let other = s.execute("file.place", &json!({ "path": path, "at": [200, 100] })).unwrap();
|
||
s.execute("symbol.new", &json!({ "name": "Pic", "ids": [other["ids"][0]] })).unwrap();
|
||
let before = symbol_clip_width(&s, "Pic").expect("the file's clipping path");
|
||
// The composite now drawn through the left quarter of the page (same length).
|
||
let text = String::from_utf8(two_plates()).unwrap().replacen("10 0 lineto 10 10 lineto", " 5 0 lineto 5 10 lineto", 1);
|
||
std::fs::write(&path, text.as_bytes()).unwrap();
|
||
s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
|
||
let after = symbol_clip_width(&s, "Pic").expect("still clipped");
|
||
assert!((after - before / 2.0).abs() < 1e-6, "the symbol's clipping path follows the file: {before} → {after}");
|
||
// The file without a clipping path (same length): the symbol's image is no longer clipped.
|
||
let unclipped = text.replacen("closepath clip newpath", "closepath newpath ", 1);
|
||
std::fs::write(&path, unclipped.as_bytes()).unwrap();
|
||
s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
|
||
assert_eq!(symbol_clip_width(&s, "Pic"), None);
|
||
}
|
||
|
||
#[test]
|
||
fn a_file_that_lost_its_clipping_path_unclips_the_image() {
|
||
let dir = temp_dir("update-lost-clip");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
let r = s.execute("file.place", &json!({ "path": path })).unwrap();
|
||
let id = image_of(&s, &r["ids"][0]).id;
|
||
let unclipped = String::from_utf8(two_plates()).unwrap().replacen("closepath clip newpath", "closepath newpath ", 1);
|
||
std::fs::write(&path, unclipped.as_bytes()).unwrap();
|
||
s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
|
||
let doc = &s.doc().unwrap().doc;
|
||
let placed = NodeId(r["ids"][0].as_u64().unwrap());
|
||
assert_eq!(doc.node(placed).and_then(plain_group_of_image), Some((false, true)), "the placed group stays, without the clip");
|
||
let parent = doc.parent_of(id).expect("a parent");
|
||
assert!(!matches!(doc.node(parent).unwrap().kind, NodeKind::Group { clip: true, .. }), "the image is not clipped");
|
||
// Relinked to a plain image: no clip group either.
|
||
let png = dir.join("plain.png");
|
||
image::RgbImage::from_pixel(2, 2, image::Rgb([9, 9, 9])).save(&png).unwrap();
|
||
std::fs::write(&path, two_plates()).unwrap();
|
||
s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
|
||
assert!(
|
||
s.doc().unwrap().doc.parent_of(id).is_some_and(|p| matches!(s.doc().unwrap().doc.node(p).unwrap().kind, NodeKind::Group { clip: true, .. }))
|
||
);
|
||
s.execute("links.relink", &json!({ "ids": [id.0], "path": png.to_string_lossy() })).unwrap();
|
||
let doc = &s.doc().unwrap().doc;
|
||
assert!(
|
||
!matches!(doc.node(doc.parent_of(id).unwrap()).unwrap().kind, NodeKind::Group { clip: true, .. }),
|
||
"a plain image isn't clipped by the DCS file's path"
|
||
);
|
||
}
|
||
|
||
/// The kind of group `g` is, as (clip, the kinds of its children are just one image).
|
||
fn plain_group_of_image(g: &Node) -> Option<(bool, bool)> {
|
||
match &g.kind {
|
||
NodeKind::Group { children, clip } => Some((*clip, matches!(&children[..], [c] if matches!(c.kind, NodeKind::Image(_))))),
|
||
_ => None,
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn a_hidden_or_transparent_clip_group_loses_the_files_old_clipping_path() {
|
||
let dir = temp_dir("lost-clip-kept-group");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
let place = |s: &mut Session, x: f64| s.execute("file.place", &json!({ "path": path, "at": [x, 100] })).unwrap();
|
||
let (faded, hidden, in_symbol) = (place(&mut s, 100.0), place(&mut s, 200.0), place(&mut s, 300.0));
|
||
let (faded, hidden) = (NodeId(faded["ids"][0].as_u64().unwrap()), NodeId(hidden["ids"][0].as_u64().unwrap()));
|
||
let image = image_of(&s, &json!(faded.0)).id;
|
||
s.execute("transparency.set", &json!({"ids": [faded.0, in_symbol["ids"][0]], "opacity": 50})).unwrap();
|
||
s.edit("hide", |d, _| {
|
||
if let Some(n) = d.node_mut(hidden) {
|
||
n.visible = false;
|
||
}
|
||
Ok(())
|
||
})
|
||
.unwrap();
|
||
s.execute("symbol.new", &json!({ "name": "Pic", "ids": [in_symbol["ids"][0]] })).unwrap();
|
||
let unclipped = String::from_utf8(two_plates()).unwrap().replacen("closepath clip newpath", "closepath newpath ", 1);
|
||
std::fs::write(&path, unclipped.as_bytes()).unwrap();
|
||
let hidden_image = image_of(&s, &json!(hidden.0)).id;
|
||
s.execute("links.update", &json!({ "ids": [image.0, hidden_image.0] })).unwrap();
|
||
let doc = &s.doc().unwrap().doc;
|
||
for (g, why) in [(faded, "the transparent group"), (hidden, "the hidden group")] {
|
||
let n = doc.node(g).unwrap_or_else(|| panic!("{why} stays"));
|
||
assert_eq!(plain_group_of_image(n), Some((false, true)), "{why} holds the image alone, unclipped");
|
||
}
|
||
assert!((doc.node(faded).unwrap().opacity - 0.5).abs() < 1e-6, "its transparency kept");
|
||
assert!(!doc.node(hidden).unwrap().visible, "still hidden");
|
||
// In a symbol's art too.
|
||
let art = &doc.symbols.iter().find(|w| w.name == "Pic").expect("the symbol").art;
|
||
let mut found = None;
|
||
art.walk(&mut |n: &Node| {
|
||
if found.is_none() && n.children().is_some_and(|ch| ch.iter().any(|c| matches!(c.kind, NodeKind::Image(_)))) {
|
||
found = plain_group_of_image(n);
|
||
}
|
||
});
|
||
assert_eq!(found, Some((false, true)), "the symbol's transparent group holds the image alone, unclipped");
|
||
}
|
||
|
||
#[test]
|
||
fn a_clipping_mask_of_ones_own_stays_when_the_link_is_updated() {
|
||
let dir = temp_dir("own-mask");
|
||
let unclipped = String::from_utf8(two_plates()).unwrap().replacen("closepath clip newpath", "closepath newpath ", 1);
|
||
let path = write(&dir, "pic.eps", unclipped.as_bytes());
|
||
let mut s = session();
|
||
let r = s.execute("file.place", &json!({ "path": path, "at": [100, 100] })).unwrap();
|
||
let id = NodeId(r["ids"][0].as_u64().unwrap());
|
||
let rect = s.execute("shape.rectangle", &json!({"x": 95, "y": 95, "width": 4, "height": 4})).unwrap()["id"].as_u64().unwrap();
|
||
s.execute("select.set", &json!({ "ids": [id.0, rect] })).unwrap();
|
||
let g = NodeId(s.execute("object.clippingMask.make", &json!({})).unwrap()["id"].as_u64().unwrap());
|
||
s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
|
||
assert_eq!(s.doc().unwrap().doc.parent_of(id), Some(g), "the clipping mask made in the document stays");
|
||
let mask_width = |s: &Session| {
|
||
let NodeKind::Group { children, .. } = &s.doc().unwrap().doc.node(g).unwrap().kind else { panic!("the mask's group") };
|
||
children[0].geometric_bounds().map(|b| b.width().round())
|
||
};
|
||
assert_eq!(mask_width(&s), Some(4.0));
|
||
// The file gains a clipping path: its clip group goes inside the mask, which keeps its path.
|
||
std::fs::write(&path, two_plates()).unwrap();
|
||
s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
|
||
let doc = &s.doc().unwrap().doc;
|
||
let inner = doc.parent_of(id).expect("a parent");
|
||
assert_ne!(inner, g);
|
||
assert!(matches!(doc.node(inner).unwrap().kind, NodeKind::Group { clip: true, .. }), "the file's clip group");
|
||
assert_eq!(doc.parent_of(inner), Some(g));
|
||
assert_eq!(mask_width(&s), Some(4.0), "the mask's path is kept");
|
||
}
|
||
|
||
#[test]
|
||
fn a_dcs_file_takes_the_place_parameters_an_eps_file_takes() {
|
||
let dir = temp_dir("params");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
assert!(error(&mut s, "file.place", json!({ "path": path, "page": 0 })).contains("page"));
|
||
assert!(error(&mut s, "file.place", json!({ "path": path, "crop": "trim" })).contains("crop"));
|
||
}
|
||
|
||
#[test]
|
||
fn a_clipped_placement_answers_its_image_for_the_links_commands() {
|
||
let dir = temp_dir("image-id");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
let r = s.execute("file.place", &json!({ "path": path })).unwrap();
|
||
assert_eq!(r["image"], json!(image_of(&s, &r["ids"][0]).id.0));
|
||
let info = s.execute("links.info", &json!({ "id": r["image"] })).unwrap();
|
||
assert_eq!(info["format"], "DCS");
|
||
let unclipped = String::from_utf8(two_plates()).unwrap().replacen("closepath clip newpath", "closepath newpath ", 1);
|
||
let plain = write(&dir, "plain.eps", unclipped.as_bytes());
|
||
assert!(s.execute("file.place", &json!({ "path": plain })).unwrap().get("image").is_none(), "an image placed alone is its own id");
|
||
}
|
||
|
||
#[test]
|
||
fn update_and_relink_warn_of_a_swatch_kept_for_a_new_spot_plate() {
|
||
let dir = temp_dir("update-swatch");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
let r = s.execute("file.place", &json!({ "path": path })).unwrap();
|
||
let id = image_of(&s, &r["ids"][0]).id;
|
||
s.execute("swatch.new", &json!({"name": "Varnish", "color": {"c": 1.0, "m": 0.0, "y": 0.0, "k": 0.0}})).unwrap();
|
||
let changed = single_file(&[("Cyan", plate_eps([0, 0, 0, 0])), ("Varnish", plate_eps([255; 4]))], "%%CMYKCustomColor: 0 0 .2 0 (Varnish)\n");
|
||
std::fs::write(&path, &changed).unwrap();
|
||
let u = s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
|
||
let kept = "the document's swatch `Varnish` is kept: it is a process color, so the plate prints as process inks";
|
||
assert_eq!(u["warnings"], json!([kept]));
|
||
let other = write(&dir, "other.eps", &changed);
|
||
let r = s.execute("links.relink", &json!({ "ids": [id.0], "path": other })).unwrap();
|
||
assert_eq!(r["warnings"], json!([kept]));
|
||
assert!(s.execute("links.update", &json!({ "ids": [id.0] })).unwrap().get("warnings").is_some(), "every read warns");
|
||
}
|
||
|
||
#[test]
|
||
fn a_deleted_dcs_image_leaves_its_spot_swatch_unused() {
|
||
let dir = temp_dir("unused");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
let r = s.execute("file.place", &json!({ "path": path })).unwrap();
|
||
let unused = |s: &mut Session| s.execute("swatch.unused", &json!({})).unwrap()["names"].as_array().unwrap().iter().any(|n| n == "PANTONE 185 C");
|
||
assert!(!unused(&mut s), "in use while the image shows it");
|
||
s.execute("select.set", &json!({ "ids": [r["ids"][0]] })).unwrap();
|
||
s.execute("edit.clear", &json!({})).unwrap();
|
||
assert!(unused(&mut s), "unused once the image is deleted");
|
||
}
|
||
|
||
#[test]
|
||
fn a_process_swatch_giving_a_dcs_plate_its_color_is_used() {
|
||
let dir = temp_dir("unused-process");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
s.execute("swatch.new", &json!({"name": "PANTONE 185 C", "color": {"c": 1.0, "m": 0.0, "y": 0.0, "k": 0.0}})).unwrap();
|
||
let unused = |s: &mut Session| s.execute("swatch.unused", &json!({})).unwrap()["names"].as_array().unwrap().iter().any(|n| n == "PANTONE 185 C");
|
||
assert!(unused(&mut s), "nothing uses it yet");
|
||
s.execute("file.place", &json!({ "path": path })).unwrap();
|
||
assert!(!unused(&mut s), "the plate of its name prints as its process inks");
|
||
}
|
||
|
||
#[test]
|
||
fn an_opened_clipping_path_is_not_the_files_and_stays() {
|
||
let dir = temp_dir("opened-clip");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
let r = s.execute("file.place", &json!({ "path": path })).unwrap();
|
||
let group = NodeId(r["ids"][0].as_u64().unwrap());
|
||
let id = image_of(&s, &r["ids"][0]).id;
|
||
// The clipping path opened, its anchors where they were.
|
||
s.edit("open", |d, _| {
|
||
let clip = d.node(group).and_then(|g| g.children()).map(|ch| ch[0].id).unwrap();
|
||
if let Some(Node { kind: NodeKind::Path { path, .. }, .. }) = d.node_mut(clip) {
|
||
path.subpaths[0].closed = false;
|
||
}
|
||
Ok(())
|
||
})
|
||
.unwrap();
|
||
let unclipped = String::from_utf8(two_plates()).unwrap().replacen("closepath clip newpath", "closepath newpath ", 1);
|
||
std::fs::write(&path, unclipped.as_bytes()).unwrap();
|
||
s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
|
||
assert_eq!(s.doc().unwrap().doc.parent_of(id), Some(group), "a clipping path edited in the document stays");
|
||
}
|
||
|
||
#[test]
|
||
fn a_clipping_path_given_another_fill_rule_is_not_the_files_and_stays() {
|
||
let dir = temp_dir("rule-clip");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
let r = s.execute("file.place", &json!({ "path": path })).unwrap();
|
||
let group = NodeId(r["ids"][0].as_u64().unwrap());
|
||
let id = image_of(&s, &r["ids"][0]).id;
|
||
// The clipping path's fill rule changed, its anchors where they were.
|
||
s.edit("rule", |d, _| {
|
||
let clip = d.node(group).and_then(|g| g.children()).map(|ch| ch[0].id).unwrap();
|
||
if let Some(Node { kind: NodeKind::Path { rule, .. }, .. }) = d.node_mut(clip) {
|
||
*rule = vectorcraft_geom::FillRule::EvenOdd;
|
||
}
|
||
Ok(())
|
||
})
|
||
.unwrap();
|
||
let unclipped = String::from_utf8(two_plates()).unwrap().replacen("closepath clip newpath", "closepath newpath ", 1);
|
||
std::fs::write(&path, unclipped.as_bytes()).unwrap();
|
||
s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
|
||
assert_eq!(s.doc().unwrap().doc.parent_of(id), Some(group), "a clipping path whose fill rule was changed stays");
|
||
}
|
||
|
||
#[test]
|
||
fn an_even_odd_clipping_path_is_placed_and_matched_under_the_nonzero_rule() {
|
||
let dir = temp_dir("eo-clip");
|
||
// The same length, so the plates' offsets hold.
|
||
let eo = String::from_utf8(two_plates()).unwrap().replacen("gsave newpath 0 0 moveto", "gsave 0 0 moveto ", 1);
|
||
let eo = eo.replacen("closepath clip newpath", "closepath eoclip newpath", 1);
|
||
assert_eq!(eo.len(), two_plates().len());
|
||
let path = write(&dir, "pic.eps", eo.as_bytes());
|
||
let mut s = session();
|
||
let r = s.execute("file.place", &json!({ "path": path })).unwrap();
|
||
let group = NodeId(r["ids"][0].as_u64().unwrap());
|
||
let id = image_of(&s, &r["ids"][0]).id;
|
||
let doc = &s.doc().unwrap().doc;
|
||
let clip = &doc.node(group).and_then(|g| g.children()).expect("the file's clip group")[0];
|
||
assert!(matches!(clip.kind, NodeKind::Path { rule: vectorcraft_geom::FillRule::NonZero, clipping: true, .. }), "{:?}", clip.kind);
|
||
// The file without its clipping path: the group's clipping path is the file's, and goes.
|
||
let unclipped = String::from_utf8(two_plates()).unwrap().replacen("closepath clip newpath", "closepath newpath ", 1);
|
||
std::fs::write(&path, unclipped.as_bytes()).unwrap();
|
||
s.execute("links.update", &json!({ "ids": [id.0] })).unwrap();
|
||
assert_eq!(s.doc().unwrap().doc.node(group).and_then(plain_group_of_image), Some((false, true)), "the file's clipping path is gone");
|
||
}
|
||
|
||
#[test]
|
||
fn files_updated_together_warn_when_they_add_one_ink_in_two_colors() {
|
||
let dir = temp_dir("update-two-inks");
|
||
let (a, b) = (write(&dir, "a.eps", &two_plates()), write(&dir, "b.eps", &two_plates()));
|
||
let mut s = session();
|
||
s.execute("file.place", &json!({ "path": a })).unwrap();
|
||
s.execute("file.place", &json!({ "path": b })).unwrap();
|
||
let varnish =
|
||
|c: &str| single_file(&[("Cyan", plate_eps([0; 4])), ("Varnish", plate_eps([255; 4]))], &format!("%%CMYKCustomColor: {c} (Varnish)\n"));
|
||
std::fs::write(&a, varnish("0 0 .2 0")).unwrap();
|
||
std::fs::write(&b, varnish("1 0 0 0")).unwrap();
|
||
let u = s.execute("links.update", &json!({})).unwrap();
|
||
assert_eq!(u["updated"].as_array().map(Vec::len), Some(2), "{u}");
|
||
assert_eq!(u["warnings"], json!(["the document's swatch `Varnish` is kept: it is a different color"]));
|
||
}
|
||
|
||
#[test]
|
||
fn relink_with_copy_refuses_a_dcs_file_with_plate_files() {
|
||
let dir = temp_dir("copy");
|
||
write(&dir, "pic.C", plate_eps([0, 255, 255, 255]).as_bytes());
|
||
let main = "%!PS-Adobe-2.0 EPSF-1.2\n%%BoundingBox: 0 0 20 10\n%%CyanPlate: pic.C\n%%EndComments\nshowpage\n";
|
||
let path = write(&dir, "pic.eps", main.as_bytes());
|
||
let docs = dir.join("docs");
|
||
std::fs::create_dir_all(&docs).unwrap();
|
||
let mut s = session();
|
||
s.execute("document.save", &json!({ "path": docs.join("doc.vectorcraft").to_string_lossy() })).unwrap();
|
||
let png = dir.join("plain.png");
|
||
image::RgbImage::from_pixel(2, 2, image::Rgb([9, 9, 9])).save(&png).unwrap();
|
||
let r = s.execute("file.place", &json!({ "path": png.to_string_lossy() })).unwrap();
|
||
let id = r["ids"][0].clone();
|
||
let e = error(&mut s, "links.relink", json!({ "ids": [id], "path": path, "copy": true }));
|
||
assert!(e.contains("plate files"), "{e}");
|
||
assert!(!docs.join("pic.eps").exists(), "nothing is copied");
|
||
// A single-file DCS file has its plates inside it: it is copied.
|
||
let single = write(&dir, "single.eps", &two_plates());
|
||
s.execute("links.relink", &json!({ "ids": [id], "path": single, "copy": true })).unwrap();
|
||
assert!(docs.join("single.eps").exists());
|
||
}
|
||
|
||
#[test]
|
||
fn a_saved_document_reads_the_plates_again_and_prints_the_spot_ink() {
|
||
let dir = temp_dir("saved");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let saved = dir.join("doc.vectorcraft").to_string_lossy().into_owned();
|
||
let mut s = session();
|
||
s.execute("file.place", &json!({ "path": path })).unwrap();
|
||
let unused = s.execute("swatch.unused", &json!({})).unwrap();
|
||
assert!(!unused["names"].as_array().unwrap().iter().any(|n| n == "PANTONE 185 C"), "the plate's swatch is in use: {unused}");
|
||
s.execute("document.save", &json!({ "path": saved })).unwrap();
|
||
let mut s = Session::new();
|
||
s.execute("document.open", &json!({ "path": saved })).unwrap();
|
||
let list = s.execute("links.list", &json!({})).unwrap();
|
||
assert_eq!(list["links"][0]["format"], "DCS");
|
||
assert_eq!(list["links"][0]["status"], "ok");
|
||
let id = NodeId(list["links"][0]["id"].as_u64().unwrap());
|
||
let NodeKind::Image(im) = &s.doc().unwrap().doc.node(id).unwrap().kind else { not_an_image() };
|
||
let plates = s.doc().unwrap().doc.images[&im.key].separated().expect("the plates, read from the file again");
|
||
assert_eq!(plates.plates[1].data, [128, 0, 128, 0]);
|
||
let v = s.execute("print.preview", &json!({"settings": {"output": {"mode": "separations"}}})).unwrap();
|
||
let inks: Vec<&str> = v["sheets"].as_array().unwrap().iter().filter_map(|p| p["ink"].as_str()).collect();
|
||
assert_eq!(inks, ["Cyan", "Magenta", "Yellow", "Black", "PANTONE 185 C"]);
|
||
}
|
||
|
||
#[test]
|
||
fn dcs_transparency_marks_transparent_and_overlapped_dcs_images() {
|
||
let dir = temp_dir("transparency");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
let r = s.execute("file.place", &json!({ "path": path, "at": [100, 100] })).unwrap();
|
||
let image = image_of(&s, &r["ids"][0]).id;
|
||
let marked = |s: &mut Session| s.execute("links.list", &json!({ "dcsTransparency": true })).unwrap()["links"][0]["dcsTransparency"] == true;
|
||
assert!(!marked(&mut s), "nothing transparent");
|
||
assert!(s.execute("links.list", &json!({})).unwrap()["links"][0].get("dcsTransparency").is_none());
|
||
// A half-transparent square away from it, then over it.
|
||
let far = s.execute("shape.rectangle", &json!({"x": 300, "y": 200, "width": 20, "height": 20})).unwrap()["id"].as_u64().unwrap();
|
||
s.execute("transparency.set", &json!({"ids": [far], "opacity": 50})).unwrap();
|
||
assert!(!marked(&mut s), "a transparent object elsewhere");
|
||
s.execute("shape.rectangle", &json!({"x": 90, "y": 90, "width": 20, "height": 20})).unwrap();
|
||
let over = s.execute("shape.rectangle", &json!({"x": 92, "y": 92, "width": 4, "height": 4})).unwrap()["id"].as_u64().unwrap();
|
||
assert!(!marked(&mut s), "opaque objects over it");
|
||
s.execute("transparency.set", &json!({"ids": [over], "blend": "multiply"})).unwrap();
|
||
assert!(marked(&mut s), "a blend mode over it");
|
||
s.execute("transparency.set", &json!({"ids": [over], "blend": "normal"})).unwrap();
|
||
s.execute("transparency.set", &json!({"ids": [image.0], "opacity": 80})).unwrap();
|
||
assert!(marked(&mut s), "the image itself");
|
||
assert!(error(&mut s, "links.list", json!({ "dcsTransparency": "yes" })).contains("dcsTransparency"), "a flag that isn't true or false");
|
||
}
|
||
|
||
#[test]
|
||
fn dcs_transparency_counts_a_transparent_dcs_image_over_another() {
|
||
let dir = temp_dir("transparency-two");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
let a = s.execute("file.place", &json!({ "path": path, "at": [100, 100] })).unwrap();
|
||
let b = s.execute("file.place", &json!({ "path": path, "at": [103, 100] })).unwrap();
|
||
let (a, b) = (image_of(&s, &a["ids"][0]).id, image_of(&s, &b["ids"][0]).id);
|
||
s.execute("transparency.set", &json!({"ids": [a.0], "opacity": 80})).unwrap();
|
||
let list = s.execute("links.list", &json!({ "dcsTransparency": true })).unwrap();
|
||
let marked = |id: NodeId| list["links"].as_array().unwrap().iter().any(|r| r["id"] == id.0 && r["dcsTransparency"] == true);
|
||
assert!(marked(a), "the transparent image");
|
||
assert!(marked(b), "the opaque image it overlaps");
|
||
}
|
||
|
||
#[test]
|
||
fn dcs_transparency_counts_characters_with_a_transparent_gradient() {
|
||
use vectorcraft_color::{Gradient, GradientKind, GradientPaint, GradientStop};
|
||
let dir = temp_dir("transparency-text");
|
||
let path = write(&dir, "pic.eps", &two_plates());
|
||
let mut s = session();
|
||
s.execute("file.place", &json!({ "path": path, "at": [100, 100] })).unwrap();
|
||
let t = NodeId(s.execute("text.create", &json!({"x": 96, "y": 104, "text": "Hi", "size": 12})).unwrap()["id"].as_u64().unwrap());
|
||
let marked = |s: &mut Session| s.execute("links.list", &json!({ "dcsTransparency": true })).unwrap()["links"][0]["dcsTransparency"] == true;
|
||
assert!(!marked(&mut s), "opaque characters over it");
|
||
let mut 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))];
|
||
stops[1].opacity = 0.5;
|
||
let gradient = Paint::Gradient(Box::new(GradientPaint::new(Gradient::new(GradientKind::Linear, stops))));
|
||
s.edit("t", |d, _| {
|
||
if let Some(Node { kind: NodeKind::Text(text), .. }) = d.node_mut(t) {
|
||
text.runs[0].style.fill = gradient.clone();
|
||
}
|
||
Ok(())
|
||
})
|
||
.unwrap();
|
||
assert!(marked(&mut s), "characters filled with a gradient that has a transparent stop");
|
||
assert!(s.doc().unwrap().doc.node(t).unwrap().shows_transparency());
|
||
}
|