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.ai save: the editing data comments say what VectorCraft writes

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The comments on the %%Creator line and on the artboards' Recorded and
NotRecorded parts of the document dictionary now describe what the
writer writes.
This commit is contained in:
dotCooCoo
2026-10-31 20:19:57 -07:00
parent a015666bd5
commit 5dc36cac8d
2 changed files with 8 additions and 12 deletions
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crates/eps/src/ai_editing.rs
+7 -11
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@@ -84,12 +84,10 @@ const TARGET_RESOLUTION: u32 = 800;
/// The gridlines' gray: VectorCraft's default grid color (200 of 255).
const GRID_GRAY: f64 = 200.0 / 255.0;
/// `%%Creator`. Apps that read the editing data take the file's version from this line while they
/// read the header, and only a creator that names the format's app gets the version that measures
/// `%AI3_TemplateBox` on a canvas of [`CANVAS_SIZE`] points; any other creator places the art
/// 3,871.5 points off its artboard. The text holds no version number (a number in it would be
/// read as the format's version).
const CREATOR_TEXT: &str = "VectorCraft, editing data for Illustrator"; // brand-ok: the creator the format's version is read from
/// `%%Creator`: the creator line VectorCraft writes in the header of the editing data. It names
/// VectorCraft and the format's app, and holds no version number; the version is written on its
/// own in `%%AI8_CreatorVersion` ([`CREATOR_VERSION`]).
const CREATOR_TEXT: &str = "VectorCraft, editing data for Illustrator"; // brand-ok: the creator line VectorCraft writes
/// The first line of a PostScript file (the DSC version comment).
const PS_HEADER: &str = "%!PS-Adobe-3.0"; // brand-ok: the PostScript header comment
@@ -304,11 +302,9 @@ fn ruler_units(u: Unit) -> u8 {
/// bottom-right corners in art space (`PositionPoint1`, `PositionPoint2`), its top-left corner on
/// the canvas (`RulerOrigin`, `origin` being art space's origin there), its pixel aspect ratio
/// (`PAR`), `DisplayMark` 0 (as in the files users sent), whether it is the selected one (the
/// first) and its name; then the canvas's size. Apps that read the editing data drop a record that
/// lacks any of the first five. Both sit in the dictionary the `/Document` marks `/Recorded`,
/// followed by an empty `/NotRecorded` one, as in the files users sent: apps that read the editing
/// data do not read artboards from the `/NotRecorded` dictionary, and then place the art one
/// artboard's height above a default artboard.
/// first) and its name; then the canvas's size. Every record holds all of these entries. The
/// artboards and the canvas size are written in the `/Recorded` part of the `/Document`
/// dictionary, followed by an empty `/NotRecorded` part.
fn artboards(s: &mut String, doc: &Document, to_art: Affine, origin: (f64, f64)) {
s.push_str("%AI9_BeginDocumentData\n%_/Document :\n%_/Dictionary :\n%_/Array :\n");
for (i, ab) in doc.artboards.iter().enumerate() {
crates/eps/src/ai_editing/tests.rs
+1 -1
View File
@@ -329,7 +329,7 @@ fn art_lies_on_its_artboard_in_ruler_space() {
assert!(text.contains(line), "{line}\n{text}");
}
// The creator names the format's app, before the canvas size and the template box, and holds
// no version number another app could read as the format's version.
// no version number (the version is written in `%%AI8_CreatorVersion`).
let creator = text.lines().find_map(|l| l.strip_prefix("%%Creator: ")).unwrap();
assert!(creator.contains("Illustrator"), "{creator}");
assert!(!creator.contains("88") && !creator.chars().any(|c| c.is_ascii_digit()), "{creator}");