616 lines
25 KiB
Rust
616 lines
25 KiB
Rust
use std::sync::Arc;
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use vectorcraft_color::{BlendMode, Color, Gradient, GradientKind, GradientPaint, Paint};
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use vectorcraft_doc::{
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Appearance, AppearanceItem, Artboard, CharStyle, Dash, Document, ImageBlob, ImageObject, LineCap, LineJoin, Node, NodeId, NodeKind, TextObject,
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};
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use vectorcraft_geom::{Affine, FillRule, PathData, Point, Rect, shapes};
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use crate::*;
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fn doc(w: f64, h: f64) -> Document {
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Document::new(w, h)
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}
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fn add(d: &mut Document, mut n: Node) -> NodeId {
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n.id = d.alloc_id();
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let layer = d.default_layer().expect("layer");
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let len = d.children(Some(layer)).map_or(0, |c| c.len());
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d.insert(Some(layer), len, n).expect("insert")
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}
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fn rect_node(r: Rect, fill: Color) -> Node {
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Node::path(NodeId(0), shapes::rectangle(r), Appearance::basic(Paint::solid(fill), Paint::None, 0.0))
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}
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fn leaves(d: &Document) -> Vec<&Node> {
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let mut out = vec![];
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d.walk(|n| {
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if !n.is_container() && !matches!(n.kind, NodeKind::Path { clipping: true, .. }) {
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out.push(n);
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}
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});
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out
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}
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fn close(a: Rect, b: Rect, tol: f64) -> bool {
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(a.x0 - b.x0).abs() < tol && (a.y0 - b.y0).abs() < tol && (a.x1 - b.x1).abs() < tol && (a.y1 - b.y1).abs() < tol
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}
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fn roundtrip(d: &Document) -> Document {
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let bytes = export(d, &PdfOptions::default()).expect("export");
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import(&bytes).expect("import")
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}
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fn uncompressed(d: &Document) -> String {
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let bytes = export(d, &PdfOptions::uncompressed()).expect("export");
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String::from_utf8_lossy(&bytes).into_owned()
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}
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fn page_count(bytes: &[u8]) -> usize {
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hayro_syntax::Pdf::new(bytes.to_vec()).expect("parse").pages().len()
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}
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#[test]
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fn export_is_valid_pdf() {
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let mut d = doc(200.0, 100.0);
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add(&mut d, rect_node(Rect::new(10.0, 10.0, 50.0, 50.0), Color::rgb(1.0, 0.0, 0.0)));
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let bytes = export(&d, &PdfOptions::default()).unwrap();
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assert!(bytes.starts_with(b"%PDF-1.7"));
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let tail = String::from_utf8_lossy(&bytes[bytes.len().saturating_sub(64)..]).into_owned();
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assert!(tail.contains("startxref") && tail.contains("%%EOF"), "{tail}");
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assert!(String::from_utf8_lossy(&bytes).contains("xref"));
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assert_eq!(page_count(&bytes), 1);
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}
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#[test]
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fn metadata_creator_and_title() {
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let mut d = doc(100.0, 100.0);
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d.title = "Poster".into();
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let s = uncompressed(&d);
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assert!(s.contains("VectorCraft"));
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assert!(s.contains("Poster"));
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}
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#[test]
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fn one_page_per_artboard_with_sizes() {
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let mut d = doc(200.0, 100.0);
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d.artboards.push(Artboard {
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id: 2,
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name: "B".into(),
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rect: Rect::new(300.0, 0.0, 400.0, 400.0),
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show_center_mark: false,
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show_cross_hairs: false,
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});
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d.artboards.push(Artboard {
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id: 3,
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name: "C".into(),
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rect: Rect::new(0.0, 500.0, 612.0, 1292.0),
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show_center_mark: false,
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show_cross_hairs: false,
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});
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let bytes = export(&d, &PdfOptions::default()).unwrap();
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let pdf = hayro_syntax::Pdf::new(bytes).unwrap();
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let sizes: Vec<(f32, f32)> = pdf.pages().iter().map(|p| p.render_dimensions()).collect();
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assert_eq!(sizes, vec![(200.0, 100.0), (100.0, 400.0), (612.0, 792.0)]);
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}
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#[test]
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fn artboard_range_and_bad_index() {
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let mut d = doc(200.0, 100.0);
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d.artboards.push(Artboard {
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id: 2,
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name: "B".into(),
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rect: Rect::new(300.0, 0.0, 400.0, 400.0),
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show_center_mark: false,
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show_cross_hairs: false,
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});
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let bytes = export(&d, &PdfOptions { artboards: Some(vec![1]), ..Default::default() }).unwrap();
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let pdf = hayro_syntax::Pdf::new(bytes).unwrap();
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assert_eq!(pdf.pages().len(), 1);
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assert_eq!(pdf.pages()[0].render_dimensions(), (100.0, 400.0));
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assert_eq!(export(&d, &PdfOptions { artboards: Some(vec![5]), ..Default::default() }), Err(PdfError::BadArtboard(5)));
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d.artboards.clear();
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assert_eq!(export(&d, &PdfOptions::default()), Err(PdfError::NoArtboards));
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}
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#[test]
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fn roundtrip_rect_and_ellipse_bounds() {
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let mut d = doc(300.0, 200.0);
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add(&mut d, rect_node(Rect::new(10.0, 20.0, 110.0, 70.0), Color::rgb(1.0, 0.0, 0.0)));
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let e = Node::path(
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NodeId(0),
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shapes::ellipse(Rect::new(150.0, 40.0, 250.0, 180.0)),
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Appearance::basic(Paint::solid(Color::rgb(0.0, 0.0, 1.0)), Paint::None, 0.0),
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);
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add(&mut d, e);
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let out = roundtrip(&d);
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let l = leaves(&out);
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assert_eq!(l.len(), 2);
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assert!(close(l[0].geometric_bounds().unwrap(), Rect::new(10.0, 20.0, 110.0, 70.0), 0.01), "{:?}", l[0].geometric_bounds());
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assert!(close(l[1].geometric_bounds().unwrap(), Rect::new(150.0, 40.0, 250.0, 180.0), 0.05), "{:?}", l[1].geometric_bounds());
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assert_eq!(out.artboards.len(), 1);
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assert!(close(out.artboards[0].rect, Rect::new(0.0, 0.0, 300.0, 200.0), 1e-6));
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}
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#[test]
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fn roundtrip_colours_preserved() {
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let mut d = doc(300.0, 100.0);
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let cols = [Color::rgb8(0x12, 0x34, 0x56), Color::rgb8(0xff, 0x80, 0x00), Color::rgb8(0x00, 0xc0, 0x40)];
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for (i, c) in cols.iter().enumerate() {
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add(&mut d, rect_node(Rect::new(10.0 + 90.0 * i as f64, 10.0, 90.0 + 90.0 * i as f64, 90.0), *c));
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}
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let out = roundtrip(&d);
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let got: Vec<String> = leaves(&out).iter().map(|n| n.appearance.fill_paint().color().unwrap().to_hex()).collect();
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assert_eq!(got, cols.iter().map(|c| c.to_hex()).collect::<Vec<_>>());
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}
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#[test]
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fn roundtrip_stroke_params_merge_fill_and_stroke() {
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let mut d = doc(200.0, 200.0);
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let mut p = Node::path(
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NodeId(0),
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shapes::rectangle(Rect::new(20.0, 20.0, 120.0, 120.0)),
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Appearance::basic(Paint::solid(Color::WHITE), Paint::solid(Color::BLACK), 4.0),
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);
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{
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let st = p.appearance.stroke_mut().unwrap();
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st.cap = LineCap::Round;
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st.join = LineJoin::Bevel;
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st.miter_limit = 7.0;
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st.dash = Some(Dash { pattern: vec![6.0, 3.0], offset: 1.0, align_corners: false });
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}
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add(&mut d, p);
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let out = roundtrip(&d);
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let l = leaves(&out);
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assert_eq!(l.len(), 1, "fill + stroke of one path should import as one object");
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let st = l[0].appearance.stroke().unwrap();
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assert!((st.width - 4.0).abs() < 1e-3);
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assert_eq!(st.cap, LineCap::Round);
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assert_eq!(st.join, LineJoin::Bevel);
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assert!((st.miter_limit - 7.0).abs() < 1e-3);
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let dash = st.dash.as_ref().unwrap();
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assert_eq!(dash.pattern.len(), 2);
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assert!((dash.pattern[0] - 6.0).abs() < 1e-3 && (dash.offset - 1.0).abs() < 1e-3);
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assert_eq!(l[0].appearance.fill_paint().color().unwrap().to_hex(), "#ffffff");
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}
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#[test]
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fn roundtrip_open_path_and_even_odd() {
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let mut d = doc(200.0, 200.0);
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let mut bp = vectorcraft_geom::BezPath::new();
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bp.move_to((10.0, 10.0));
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bp.curve_to((50.0, 0.0), (80.0, 100.0), (150.0, 60.0));
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add(&mut d, Node::path(NodeId(0), PathData::from_bezpath(&bp), Appearance::basic(Paint::None, Paint::solid(Color::BLACK), 2.0)));
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let mut ring = shapes::rectangle(Rect::new(20.0, 100.0, 120.0, 190.0));
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ring.subpaths.extend(shapes::rectangle(Rect::new(40.0, 120.0, 100.0, 170.0)).subpaths);
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let mut n = rect_node(Rect::ZERO, Color::BLACK);
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n.kind = NodeKind::Path { path: ring, rule: FillRule::EvenOdd, live: None, clipping: false, guide: false };
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add(&mut d, n);
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let out = roundtrip(&d);
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let l = leaves(&out);
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assert_eq!(l.len(), 2);
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let pb = l[0].path_data().unwrap();
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assert!(!pb.is_closed());
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let b = l[0].geometric_bounds().unwrap();
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let want = bp.bounding_box_exact();
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assert!(close(b, want, 0.05), "{b:?} vs {want:?}");
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assert!(matches!(l[1].kind, NodeKind::Path { rule: FillRule::EvenOdd, .. }));
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assert_eq!(l[1].path_data().unwrap().subpaths.len(), 2);
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}
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trait Exact {
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fn bounding_box_exact(&self) -> Rect;
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}
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impl Exact for vectorcraft_geom::BezPath {
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fn bounding_box_exact(&self) -> Rect {
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kurbo::Shape::bounding_box(self)
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}
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}
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#[test]
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fn gradients_exported_as_shadings_and_reimported() {
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let mut d = doc(300.0, 100.0);
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let lin = GradientPaint::new(Gradient::default());
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let mut n = rect_node(Rect::new(0.0, 0.0, 140.0, 100.0), Color::BLACK);
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n.appearance.set_fill(Paint::Gradient(Box::new(lin)));
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add(&mut d, n);
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let rad = GradientPaint::new(Gradient { kind: GradientKind::Radial, ..Gradient::default() });
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let mut n = rect_node(Rect::new(150.0, 0.0, 250.0, 100.0), Color::BLACK);
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n.appearance.set_fill(Paint::Gradient(Box::new(rad)));
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add(&mut d, n);
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let s = uncompressed(&d);
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let s = s.replace(' ', "");
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assert!(s.contains("/ShadingType2"), "axial shading");
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assert!(s.contains("/ShadingType3"), "radial shading");
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let out = roundtrip(&d);
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let l = leaves(&out);
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assert_eq!(l.len(), 2);
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let Paint::Gradient(g) = l[0].appearance.fill_paint() else { panic!("linear gradient lost: {:?}", l[0].appearance) };
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assert_eq!(g.gradient.kind, GradientKind::Linear);
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let geom = g.geom.unwrap();
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assert!((geom.start.x - 0.0).abs() < 0.1 && (geom.end.x - 140.0).abs() < 0.1, "{geom:?}");
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assert_eq!(g.gradient.stops.first().unwrap().color.to_hex(), "#ffffff");
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assert_eq!(g.gradient.stops.last().unwrap().color.to_hex(), "#000000");
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let Paint::Gradient(g) = l[1].appearance.fill_paint() else { panic!("radial gradient lost") };
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assert_eq!(g.gradient.kind, GradientKind::Radial);
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assert!((g.geom.unwrap().start - Point::new(200.0, 50.0)).hypot() < 0.1);
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}
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#[test]
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fn hidden_objects_and_template_layers_skipped() {
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let mut d = doc(200.0, 200.0);
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add(&mut d, rect_node(Rect::new(10.0, 10.0, 50.0, 50.0), Color::BLACK));
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let mut hidden = rect_node(Rect::new(60.0, 10.0, 90.0, 50.0), Color::BLACK);
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hidden.visible = false;
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add(&mut d, hidden);
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let t = d.add_layer(Some("Template"));
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if let NodeKind::Layer { template, .. } = &mut d.node_mut(t).unwrap().kind {
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*template = true;
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}
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let mut n = rect_node(Rect::new(100.0, 100.0, 150.0, 150.0), Color::BLACK);
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n.id = d.alloc_id();
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d.insert(Some(t), 0, n).unwrap();
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let mut guide = rect_node(Rect::new(0.0, 0.0, 10.0, 10.0), Color::BLACK);
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if let NodeKind::Path { guide: g, .. } = &mut guide.kind {
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*g = true;
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}
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add(&mut d, guide);
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let out = roundtrip(&d);
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assert_eq!(leaves(&out).len(), 1);
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}
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#[test]
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fn objects_outside_artboard_are_culled() {
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let mut d = doc(100.0, 100.0);
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add(&mut d, rect_node(Rect::new(10.0, 10.0, 50.0, 50.0), Color::BLACK));
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add(&mut d, rect_node(Rect::new(500.0, 500.0, 550.0, 550.0), Color::BLACK));
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assert_eq!(leaves(&roundtrip(&d)).len(), 1);
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}
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#[test]
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fn opacity_and_blend_modes() {
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let mut d = doc(200.0, 200.0);
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let mut n = rect_node(Rect::new(10.0, 10.0, 100.0, 100.0), Color::rgb(1.0, 0.0, 0.0));
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n.opacity = 0.5;
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n.blend = BlendMode::Multiply;
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add(&mut d, n);
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let s = uncompressed(&d);
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let s = s.replace(' ', "");
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assert!(s.contains("/BM/Multiply"), "blend mode in ExtGState");
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assert!(s.contains("/ca0.5"), "opacity in ExtGState");
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assert!(s.contains("/Transparency"), "transparency group");
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let out = roundtrip(&d);
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let l = leaves(&out);
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assert_eq!(l.len(), 1);
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// Opacity/blend end up on the object or an enclosing group.
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let mut op = 1.0;
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let mut bm = BlendMode::Normal;
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out.walk(|n| {
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op *= n.opacity * n.appearance.fill().map_or(1.0, |f| f.opacity);
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if n.blend != BlendMode::Normal {
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bm = n.blend;
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}
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});
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assert!((op - 0.5).abs() < 0.01, "{op}");
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assert_eq!(bm, BlendMode::Multiply);
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}
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#[test]
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fn clip_group_roundtrip() {
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let mut d = doc(200.0, 200.0);
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let clip = Node::new(
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NodeId(0),
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NodeKind::Path {
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path: shapes::ellipse(Rect::new(20.0, 20.0, 120.0, 120.0)),
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rule: FillRule::NonZero,
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live: None,
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clipping: true,
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guide: false,
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},
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);
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let mut clip = clip;
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clip.id = d.alloc_id();
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let mut a = rect_node(Rect::new(0.0, 0.0, 100.0, 100.0), Color::rgb(0.0, 1.0, 0.0));
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a.id = d.alloc_id();
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let mut b = rect_node(Rect::new(50.0, 50.0, 150.0, 150.0), Color::rgb(0.0, 0.0, 1.0));
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b.id = d.alloc_id();
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let g = Node::new(NodeId(0), NodeKind::Group { children: vec![Arc::new(clip), Arc::new(a), Arc::new(b)], clip: true });
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add(&mut d, g);
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let out = roundtrip(&d);
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let mut groups = vec![];
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out.walk(|n| {
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if let NodeKind::Group { clip: true, children } = &n.kind {
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groups.push(children.len());
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}
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});
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assert_eq!(groups, vec![3]);
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let cg = {
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let mut r = None;
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out.walk(|n| {
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if matches!(n.kind, NodeKind::Group { clip: true, .. }) {
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r = n.geometric_bounds();
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}
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});
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r.unwrap()
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};
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assert!(close(cg, Rect::new(20.0, 20.0, 120.0, 120.0), 0.05), "{cg:?}");
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}
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#[test]
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fn text_exported_as_outlines() {
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let mut d = doc(300.0, 100.0);
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let t = TextObject::point(Point::new(10.0, 50.0), "Hello", CharStyle { size: 24.0, ..CharStyle::default() });
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add(&mut d, Node::new(NodeId(0), NodeKind::Text(Box::new(t))));
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let mut outlined = PdfOptions::uncompressed();
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outlined.settings.advanced.outline_text = true;
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let s = String::from_utf8_lossy(&export(&d, &outlined).unwrap()).into_owned();
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assert!(!s.contains("/Font"), "no fonts when outlining text");
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// Real text in an embedded font by default, as a PDF from Illustrator has it (#733).
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assert!(uncompressed(&d).contains("/FontFile"), "a font embedded by default");
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let r = import_with_report(&export(&d, &outlined).unwrap(), &ImportOptions::default()).unwrap();
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let l = leaves(&r.document);
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assert!(!l.is_empty());
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assert!(l.iter().all(|n| matches!(n.kind, NodeKind::Path { .. })));
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let b = l.iter().fold(None, |acc, n| vectorcraft_geom::union_opt(acc, n.geometric_bounds())).unwrap();
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assert!(b.x0 >= 9.0 && b.x1 < 120.0 && b.y1 <= 56.0 && b.y0 > 25.0, "{b:?}");
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}
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fn tiny_png() -> Vec<u8> {
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let mut img = image::RgbaImage::new(4, 2);
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for (x, _, p) in img.enumerate_pixels_mut() {
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*p = image::Rgba([if x < 2 { 255 } else { 0 }, 0, 0, 255]);
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}
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let mut out = vec![];
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img.write_to(&mut std::io::Cursor::new(&mut out), image::ImageFormat::Png).unwrap();
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out
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}
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#[test]
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fn image_roundtrip() {
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let mut d = doc(200.0, 200.0);
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d.images.insert("img1".into(), ImageBlob::new("image/png", tiny_png()));
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let im = ImageObject {
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key: "img1".into(),
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width: 4,
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height: 2,
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xf: Affine::translate((20.0, 30.0)) * Affine::scale(10.0),
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link: None,
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placement: Default::default(),
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};
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add(&mut d, Node::new(NodeId(0), NodeKind::Image(im)));
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let out = roundtrip(&d);
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let l = leaves(&out);
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assert_eq!(l.len(), 1);
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let NodeKind::Image(im) = &l[0].kind else { panic!("expected image, got {:?}", l[0].kind_label()) };
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assert_eq!((im.width, im.height), (4, 2));
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assert!(close(l[0].geometric_bounds().unwrap(), Rect::new(20.0, 30.0, 60.0, 50.0), 0.01), "{:?}", l[0].geometric_bounds());
|
|
let blob = &out.images[&im.key];
|
|
let decoded = image::load_from_memory(&blob.bytes).unwrap().to_rgba8();
|
|
assert_eq!(decoded.get_pixel(0, 0).0, [255, 0, 0, 255]);
|
|
assert_eq!(decoded.get_pixel(3, 0).0, [0, 0, 0, 255]);
|
|
}
|
|
|
|
/// Build a PDF with a correct xref table from object bodies.
|
|
fn handmade_pdf(content: &str, media: &str) -> Vec<u8> {
|
|
let objs = [
|
|
"<< /Type /Catalog /Pages 2 0 R >>".to_string(),
|
|
"<< /Type /Pages /Kids [3 0 R] /Count 1 >>".to_string(),
|
|
format!("<< /Type /Page /Parent 2 0 R /MediaBox {media} /Contents 4 0 R /Resources << >> >>"),
|
|
format!("<< /Length {} >>\nstream\n{content}\nendstream", content.len() + 1),
|
|
];
|
|
let mut out = b"%PDF-1.4\n".to_vec();
|
|
let mut offs = vec![];
|
|
for (i, o) in objs.iter().enumerate() {
|
|
offs.push(out.len());
|
|
out.extend(format!("{} 0 obj\n{o}\nendobj\n", i + 1).bytes());
|
|
}
|
|
let xref = out.len();
|
|
out.extend(format!("xref\n0 {}\n0000000000 65535 f \n", objs.len() + 1).bytes());
|
|
for o in offs {
|
|
out.extend(format!("{o:010} 00000 n \n").bytes());
|
|
}
|
|
out.extend(format!("trailer\n<< /Size {} /Root 1 0 R >>\nstartxref\n{xref}\n%%EOF\n", objs.len() + 1).bytes());
|
|
out
|
|
}
|
|
|
|
#[test]
|
|
fn import_handmade_pdf() {
|
|
let content = "1 0 0 RG 0 0 1 rg 3 w 10 10 50 30 re B \
|
|
0 1 1 0 k 100 100 20 20 re f \
|
|
0.5 g q 1 0 0 1 150 0 cm 0 0 m 40 0 l 20 30 l h f Q";
|
|
let bytes = handmade_pdf(content, "[0 0 200 300]");
|
|
let r = import_with_report(&bytes, &ImportOptions::default()).unwrap();
|
|
let d = r.document;
|
|
assert!(close(d.artboards[0].rect, Rect::new(0.0, 0.0, 200.0, 300.0), 1e-9));
|
|
let l = leaves(&d);
|
|
assert_eq!(l.len(), 3);
|
|
// y-up PDF rect (10,10)-(60,40) → y-down (10,260)-(60,290).
|
|
assert!(close(l[0].geometric_bounds().unwrap(), Rect::new(10.0, 260.0, 60.0, 290.0), 1e-6), "{:?}", l[0].geometric_bounds());
|
|
assert_eq!(l[0].appearance.fill_paint().color().unwrap().to_hex(), "#0000ff");
|
|
assert_eq!(l[0].appearance.stroke_paint().color().unwrap().to_hex(), "#ff0000");
|
|
assert!((l[0].appearance.stroke_width() - 3.0).abs() < 1e-6);
|
|
// CMYK red-ish (0,1,1,0) → approximately red through the CMYK profile.
|
|
let [r_, g_, b_] = l[1].appearance.fill_paint().color().unwrap().to_rgb();
|
|
assert!(r_ > 0.8 && g_ < 0.3 && b_ < 0.3, "{r_} {g_} {b_}");
|
|
// Gray 0.5 and the `cm` translation.
|
|
assert_eq!(l[2].appearance.fill_paint().color().unwrap().to_hex(), "#808080");
|
|
assert!(close(l[2].geometric_bounds().unwrap(), Rect::new(150.0, 270.0, 190.0, 300.0), 1e-6));
|
|
}
|
|
|
|
/// Art off the page opens on the pasteboard round its artboard, not cut away (#472).
|
|
#[test]
|
|
fn import_keeps_art_outside_the_page() {
|
|
let content = "0 0 1 rg 10 10 50 30 re f 0 1 0 rg -300 -300 50 50 re f 1 0 0 rg 500 500 20 20 re f";
|
|
let d = import(&handmade_pdf(content, "[0 0 200 300]")).unwrap();
|
|
assert!(close(d.artboards[0].rect, Rect::new(0.0, 0.0, 200.0, 300.0), 1e-9));
|
|
let bounds: Vec<Rect> = leaves(&d).iter().map(|n| n.geometric_bounds().unwrap()).collect();
|
|
let want = [Rect::new(10.0, 260.0, 60.0, 290.0), Rect::new(-300.0, 550.0, -250.0, 600.0), Rect::new(500.0, -220.0, 520.0, -200.0)];
|
|
assert_eq!(bounds.len(), want.len(), "{bounds:?}");
|
|
for (b, w) in bounds.iter().zip(want) {
|
|
assert!(close(*b, w, 1e-6), "{b:?} vs {w:?}");
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn import_invalid_dash_array_strokes_solid() {
|
|
// A dash array with a negative value is invalid (PDF 32000-1 §8.4.3.6): the line is solid. A valid
|
|
// array next to it stays dashed.
|
|
let content = "0 0 1 RG 4 w [-5 3] 0 d 10 10 m 90 10 l S [6 2] 1 d 10 50 m 90 50 l S";
|
|
let d = import(&handmade_pdf(content, "[0 0 100 100]")).unwrap();
|
|
let l = leaves(&d);
|
|
assert_eq!(l.len(), 2);
|
|
let dash = |n: &Node| match &n.appearance.items[..] {
|
|
[.., AppearanceItem::Stroke(st)] => st.dash.clone(),
|
|
items => panic!("no stroke: {items:?}"),
|
|
};
|
|
assert_eq!(dash(l[0]), None);
|
|
assert_eq!(dash(l[1]).map(|d| d.pattern), Some(vec![6.0, 2.0]));
|
|
// And the exporter never writes an invalid array back.
|
|
let mut d2 = doc(100.0, 100.0);
|
|
let mut n = rect_node(Rect::new(10.0, 10.0, 90.0, 90.0), Color::rgb(1.0, 0.0, 0.0));
|
|
n.appearance = Appearance::basic(Paint::None, Paint::solid(Color::BLACK), 2.0);
|
|
if let Some(AppearanceItem::Stroke(st)) = n.appearance.items.last_mut() {
|
|
st.dash = Some(Dash { pattern: vec![-5.0, 3.0], offset: 0.0, align_corners: false });
|
|
}
|
|
add(&mut d2, n);
|
|
let s = uncompressed(&d2);
|
|
assert!(!s.contains("-5 3]") && !s.contains("[0 3]"), "invalid dash written:\n{s}");
|
|
}
|
|
|
|
#[test]
|
|
fn import_clip_from_handmade_pdf() {
|
|
let content = "q 0 0 50 50 re W n 1 0 0 rg 0 0 100 100 re f Q";
|
|
let d = import(&handmade_pdf(content, "[0 0 100 100]")).unwrap();
|
|
let mut clip_groups = 0;
|
|
d.walk(|n| {
|
|
if matches!(n.kind, NodeKind::Group { clip: true, .. }) {
|
|
clip_groups += 1;
|
|
assert!(close(n.geometric_bounds().unwrap(), Rect::new(0.0, 50.0, 50.0, 100.0), 1e-6));
|
|
}
|
|
});
|
|
assert_eq!(clip_groups, 1);
|
|
}
|
|
|
|
#[test]
|
|
fn import_max_pages_and_multi_page() {
|
|
let mut d = doc(200.0, 100.0);
|
|
d.artboards.push(Artboard {
|
|
id: 2,
|
|
name: "B".into(),
|
|
rect: Rect::new(300.0, 0.0, 400.0, 400.0),
|
|
show_center_mark: false,
|
|
show_cross_hairs: false,
|
|
});
|
|
add(&mut d, rect_node(Rect::new(10.0, 10.0, 50.0, 50.0), Color::BLACK));
|
|
add(&mut d, rect_node(Rect::new(310.0, 10.0, 350.0, 50.0), Color::BLACK));
|
|
let bytes = export(&d, &PdfOptions::default()).unwrap();
|
|
let all = import(&bytes).unwrap();
|
|
assert_eq!(all.artboards.len(), 2);
|
|
assert_eq!(all.layers.len(), 2);
|
|
assert!((all.artboards[1].rect.width() - 100.0).abs() < 1e-9 && (all.artboards[1].rect.height() - 400.0).abs() < 1e-9);
|
|
// The second page's rect lands at the same place relative to its artboard.
|
|
let second = leaves(&all)[1].geometric_bounds().unwrap();
|
|
let ab = all.artboards[1].rect;
|
|
assert!(close(second, Rect::new(ab.x0 + 10.0, 10.0, ab.x0 + 50.0, 50.0), 0.01), "{second:?}");
|
|
let one = import_with_report(&bytes, &ImportOptions { max_pages: Some(1), ..Default::default() }).unwrap();
|
|
assert_eq!(one.document.artboards.len(), 1);
|
|
assert_eq!(leaves(&one.document).len(), 1);
|
|
}
|
|
|
|
#[test]
|
|
fn import_rejects_garbage() {
|
|
assert!(matches!(import(b"not a pdf at all"), Err(PdfError::Parse(_)) | Err(PdfError::NoPages)));
|
|
}
|
|
|
|
/// Options with `settings` changed by `f`.
|
|
fn with(f: impl FnOnce(&mut PdfSettings)) -> PdfOptions {
|
|
let mut o = PdfOptions::default();
|
|
f(&mut o.settings);
|
|
o
|
|
}
|
|
|
|
#[test]
|
|
fn compatibility_levels() {
|
|
let mut d = doc(100.0, 100.0);
|
|
add(&mut d, rect_node(Rect::new(10.0, 10.0, 50.0, 50.0), Color::rgb(1.0, 0.0, 0.0)));
|
|
for (c, header) in [(Compatibility::Pdf14, "%PDF-1.4"), (Compatibility::Pdf16, "%PDF-1.6"), (Compatibility::Pdf20, "%PDF-2.0")] {
|
|
let b = export(&d, &with(|s| s.compatibility = c)).unwrap();
|
|
assert!(b.starts_with(header.as_bytes()), "{c:?}");
|
|
}
|
|
let a = export(&d, &with(|s| s.standard = Standard::PdfA2b)).unwrap();
|
|
assert!(String::from_utf8_lossy(&a).contains("pdfaid"), "PDF/A identification in XMP");
|
|
// PDF/X files are PDF 1.3 (PDF/X-1a, PDF/X-3) or at most 1.6 (PDF/X-4): not the default 1.7.
|
|
for (x, header) in [(Standard::PdfX1a, "%PDF-1.3"), (Standard::PdfX3, "%PDF-1.3"), (Standard::PdfX4, "%PDF-1.6")] {
|
|
assert!(matches!(export(&d, &with(|s| s.standard = x)), Err(PdfError::BadSetting(_))), "{x:?}");
|
|
let b = export(&d, &with(|s| (s.standard, s.compatibility) = (x, x.version()))).unwrap();
|
|
assert!(b.starts_with(header.as_bytes()), "{x:?}");
|
|
}
|
|
// PDF/A-2b is a PDF 1.7 standard.
|
|
let e = export(&d, &with(|s| (s.standard, s.compatibility) = (Standard::PdfA2b, Compatibility::Pdf20)));
|
|
assert!(matches!(e, Err(PdfError::BadSetting(_))), "{e:?}");
|
|
}
|
|
|
|
#[test]
|
|
fn compress_option_changes_output() {
|
|
let mut d = doc(100.0, 100.0);
|
|
for i in 0..20 {
|
|
add(&mut d, rect_node(Rect::new(i as f64, i as f64, 50.0 + i as f64, 50.0), Color::BLACK));
|
|
}
|
|
let c = export(&d, &PdfOptions::default()).unwrap();
|
|
let u = export(&d, &PdfOptions::uncompressed()).unwrap();
|
|
assert!(u.len() > c.len());
|
|
assert!(String::from_utf8_lossy(&u).contains(" re") || String::from_utf8_lossy(&u).contains(" l"));
|
|
}
|
|
|
|
#[test]
|
|
fn stroke_alignment_and_arrowheads_export() {
|
|
let mut d = doc(200.0, 200.0);
|
|
let mut p = Node::path(
|
|
NodeId(0),
|
|
shapes::rectangle(Rect::new(20.0, 20.0, 120.0, 120.0)),
|
|
Appearance::basic(Paint::None, Paint::solid(Color::BLACK), 6.0),
|
|
);
|
|
p.appearance.stroke_mut().unwrap().align = vectorcraft_doc::StrokeAlign::Inside;
|
|
add(&mut d, p);
|
|
let mut line = Node::path(
|
|
NodeId(0),
|
|
shapes::line(Point::new(10.0, 150.0), Point::new(150.0, 150.0)),
|
|
Appearance::basic(Paint::None, Paint::solid(Color::BLACK), 2.0),
|
|
);
|
|
line.appearance.stroke_mut().unwrap().end_arrow = Some(vectorcraft_doc::Arrowhead::Triangle);
|
|
add(&mut d, line);
|
|
let r = export_with_report(&d, &PdfOptions::default()).unwrap();
|
|
let out = import(&r.bytes).unwrap();
|
|
let mut widths = vec![];
|
|
out.walk(|n| {
|
|
if let Some(AppearanceItem::Stroke(s)) = n.appearance.items.iter().find(|i| matches!(i, AppearanceItem::Stroke(_))) {
|
|
widths.push(s.width);
|
|
}
|
|
});
|
|
assert!(widths.iter().any(|w| (w - 12.0).abs() < 1e-3), "inside stroke doubled and clipped: {widths:?}");
|
|
// The arrowhead is an extra filled object.
|
|
assert!(leaves(&out).len() >= 3);
|
|
}
|
|
|
|
#[test]
|
|
fn creation_date_written() {
|
|
let d = doc(100.0, 100.0);
|
|
// 2024-02-29 12:34:56 UTC
|
|
let bytes = export(&d, &PdfOptions { created: Some(1_709_210_096), ..PdfOptions::uncompressed() }).unwrap();
|
|
assert!(String::from_utf8_lossy(&bytes).contains("D:20240229123456"));
|
|
}
|
|
|
|
#[test]
|
|
fn opacity_mask_exports_as_luminosity_soft_mask() {
|
|
let mut d = doc(100.0, 100.0);
|
|
let mut n = rect_node(Rect::new(10.0, 10.0, 90.0, 90.0), Color::rgb(1.0, 0.0, 0.0));
|
|
let art = rect_node(Rect::new(10.0, 10.0, 50.0, 90.0), Color::WHITE);
|
|
n.mask = Some(Box::new(vectorcraft_doc::OpacityMask::new(art, true)));
|
|
add(&mut d, n);
|
|
let bytes = export(&d, &PdfOptions::uncompressed()).unwrap();
|
|
let text = String::from_utf8_lossy(&bytes);
|
|
assert!(text.contains("/SMask"), "soft mask in an ExtGState");
|
|
assert!(text.contains("/Luminosity"));
|
|
}
|