mirror of
https://github.com/storytold/vectorcraft.git
synced 2026-10-27 11:17:01 -06:00
dotCooCoo
5d5e7a1dd2
In builds with overflow checks (`cargo run`, `cargo test` and `cargo xtask ci`), PDF export aborted the process when a number it wrote rounded to -2,147,483,648 as an f32. pdf-writer 0.15 writes -2,147,483,648.0 as an integer, and `Limits::register_int` overflows when it takes the absolute value. krilla 0.8.2's `Surface` then fails an assertion in its `Drop` while that panic unwinds. `svg_hostile_markup_never_panics` in `import_fuzz` hit it with type shifted 2,147,483,649 pt down. Paths, gradients, dash offsets, images and artboards that far out hit it too, and so does a group around a stroke wide enough to reach that far. Release builds have no overflow checks. PDF export now leaves out art whose coordinates or transform entries lie beyond 1,000,000,000 in its own space or in the content stream it is drawn into, and glyph lines whose spacing lies beyond 1,000,000,000 thousandths of an em. That covers paths and clipping paths, glyph lines, images, gradients, strokes whose width, caps or miter spikes reach that far, and the art and marks of a page whose artboard lies that far, which is written blank. A dash offset beyond the bound is written as its remainder after whole periods of the pattern. The type's transform is now pushed inside the form that marks a fill or stroke of type to overprint. The exporter checks what that form holds through the type's transform, as it checks the same fill or stroke without overprint.
689 lines
28 KiB
Rust
689 lines
28 KiB
Rust
use std::sync::Arc;
|
|
|
|
use vectorcraft_color::{BlendMode, Color, Gradient, GradientGeom, GradientKind, GradientPaint, Paint};
|
|
use vectorcraft_doc::{
|
|
Appearance, AppearanceItem, Artboard, CharStyle, Dash, Document, ImageBlob, ImageObject, LineCap, LineJoin, Node, NodeId, NodeKind, TextObject,
|
|
};
|
|
use vectorcraft_geom::{Affine, FillRule, PathData, Point, Rect, shapes};
|
|
|
|
use crate::*;
|
|
|
|
fn doc(w: f64, h: f64) -> Document {
|
|
Document::new(w, h)
|
|
}
|
|
|
|
fn add(d: &mut Document, mut n: Node) -> NodeId {
|
|
n.id = d.alloc_id();
|
|
let layer = d.default_layer().expect("layer");
|
|
let len = d.children(Some(layer)).map_or(0, |c| c.len());
|
|
d.insert(Some(layer), len, n).expect("insert")
|
|
}
|
|
|
|
fn rect_node(r: Rect, fill: Color) -> Node {
|
|
Node::path(NodeId(0), shapes::rectangle(r), Appearance::basic(Paint::solid(fill), Paint::None, 0.0))
|
|
}
|
|
|
|
fn leaves(d: &Document) -> Vec<&Node> {
|
|
let mut out = vec![];
|
|
d.walk(|n| {
|
|
if !n.is_container() && !matches!(n.kind, NodeKind::Path { clipping: true, .. }) {
|
|
out.push(n);
|
|
}
|
|
});
|
|
out
|
|
}
|
|
|
|
fn close(a: Rect, b: Rect, tol: f64) -> bool {
|
|
(a.x0 - b.x0).abs() < tol && (a.y0 - b.y0).abs() < tol && (a.x1 - b.x1).abs() < tol && (a.y1 - b.y1).abs() < tol
|
|
}
|
|
|
|
fn roundtrip(d: &Document) -> Document {
|
|
let bytes = export(d, &PdfOptions::default()).expect("export");
|
|
import(&bytes).expect("import")
|
|
}
|
|
|
|
fn uncompressed(d: &Document) -> String {
|
|
let bytes = export(d, &PdfOptions::uncompressed()).expect("export");
|
|
String::from_utf8_lossy(&bytes).into_owned()
|
|
}
|
|
|
|
fn page_count(bytes: &[u8]) -> usize {
|
|
hayro_syntax::Pdf::new(bytes.to_vec()).expect("parse").pages().len()
|
|
}
|
|
|
|
#[test]
|
|
fn export_is_valid_pdf() {
|
|
let mut d = doc(200.0, 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)));
|
|
let bytes = export(&d, &PdfOptions::default()).unwrap();
|
|
assert!(bytes.starts_with(b"%PDF-1.7"));
|
|
let tail = String::from_utf8_lossy(&bytes[bytes.len().saturating_sub(64)..]).into_owned();
|
|
assert!(tail.contains("startxref") && tail.contains("%%EOF"), "{tail}");
|
|
assert!(String::from_utf8_lossy(&bytes).contains("xref"));
|
|
assert_eq!(page_count(&bytes), 1);
|
|
}
|
|
|
|
#[test]
|
|
fn metadata_creator_and_title() {
|
|
let mut d = doc(100.0, 100.0);
|
|
d.title = "Poster".into();
|
|
let s = uncompressed(&d);
|
|
assert!(s.contains("VectorCraft"));
|
|
assert!(s.contains("Poster"));
|
|
}
|
|
|
|
#[test]
|
|
fn one_page_per_artboard_with_sizes() {
|
|
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,
|
|
});
|
|
d.artboards.push(Artboard {
|
|
id: 3,
|
|
name: "C".into(),
|
|
rect: Rect::new(0.0, 500.0, 612.0, 1292.0),
|
|
show_center_mark: false,
|
|
show_cross_hairs: false,
|
|
});
|
|
let bytes = export(&d, &PdfOptions::default()).unwrap();
|
|
let pdf = hayro_syntax::Pdf::new(bytes).unwrap();
|
|
let sizes: Vec<(f32, f32)> = pdf.pages().iter().map(|p| p.render_dimensions()).collect();
|
|
assert_eq!(sizes, vec![(200.0, 100.0), (100.0, 400.0), (612.0, 792.0)]);
|
|
}
|
|
|
|
#[test]
|
|
fn artboard_range_and_bad_index() {
|
|
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,
|
|
});
|
|
let bytes = export(&d, &PdfOptions { artboards: Some(vec![1]), ..Default::default() }).unwrap();
|
|
let pdf = hayro_syntax::Pdf::new(bytes).unwrap();
|
|
assert_eq!(pdf.pages().len(), 1);
|
|
assert_eq!(pdf.pages()[0].render_dimensions(), (100.0, 400.0));
|
|
assert_eq!(export(&d, &PdfOptions { artboards: Some(vec![5]), ..Default::default() }), Err(PdfError::BadArtboard(5)));
|
|
d.artboards.clear();
|
|
assert_eq!(export(&d, &PdfOptions::default()), Err(PdfError::NoArtboards));
|
|
}
|
|
|
|
#[test]
|
|
fn roundtrip_rect_and_ellipse_bounds() {
|
|
let mut d = doc(300.0, 200.0);
|
|
add(&mut d, rect_node(Rect::new(10.0, 20.0, 110.0, 70.0), Color::rgb(1.0, 0.0, 0.0)));
|
|
let e = Node::path(
|
|
NodeId(0),
|
|
shapes::ellipse(Rect::new(150.0, 40.0, 250.0, 180.0)),
|
|
Appearance::basic(Paint::solid(Color::rgb(0.0, 0.0, 1.0)), Paint::None, 0.0),
|
|
);
|
|
add(&mut d, e);
|
|
let out = roundtrip(&d);
|
|
let l = leaves(&out);
|
|
assert_eq!(l.len(), 2);
|
|
assert!(close(l[0].geometric_bounds().unwrap(), Rect::new(10.0, 20.0, 110.0, 70.0), 0.01), "{:?}", l[0].geometric_bounds());
|
|
assert!(close(l[1].geometric_bounds().unwrap(), Rect::new(150.0, 40.0, 250.0, 180.0), 0.05), "{:?}", l[1].geometric_bounds());
|
|
assert_eq!(out.artboards.len(), 1);
|
|
assert!(close(out.artboards[0].rect, Rect::new(0.0, 0.0, 300.0, 200.0), 1e-6));
|
|
}
|
|
|
|
#[test]
|
|
fn roundtrip_colours_preserved() {
|
|
let mut d = doc(300.0, 100.0);
|
|
let cols = [Color::rgb8(0x12, 0x34, 0x56), Color::rgb8(0xff, 0x80, 0x00), Color::rgb8(0x00, 0xc0, 0x40)];
|
|
for (i, c) in cols.iter().enumerate() {
|
|
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));
|
|
}
|
|
let out = roundtrip(&d);
|
|
let got: Vec<String> = leaves(&out).iter().map(|n| n.appearance.fill_paint().color().unwrap().to_hex()).collect();
|
|
assert_eq!(got, cols.iter().map(|c| c.to_hex()).collect::<Vec<_>>());
|
|
}
|
|
|
|
#[test]
|
|
fn roundtrip_stroke_params_merge_fill_and_stroke() {
|
|
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::solid(Color::WHITE), Paint::solid(Color::BLACK), 4.0),
|
|
);
|
|
{
|
|
let st = p.appearance.stroke_mut().unwrap();
|
|
st.cap = LineCap::Round;
|
|
st.join = LineJoin::Bevel;
|
|
st.miter_limit = 7.0;
|
|
st.dash = Some(Dash { pattern: vec![6.0, 3.0], offset: 1.0, align_corners: false });
|
|
}
|
|
add(&mut d, p);
|
|
let out = roundtrip(&d);
|
|
let l = leaves(&out);
|
|
assert_eq!(l.len(), 1, "fill + stroke of one path should import as one object");
|
|
let st = l[0].appearance.stroke().unwrap();
|
|
assert!((st.width - 4.0).abs() < 1e-3);
|
|
assert_eq!(st.cap, LineCap::Round);
|
|
assert_eq!(st.join, LineJoin::Bevel);
|
|
assert!((st.miter_limit - 7.0).abs() < 1e-3);
|
|
let dash = st.dash.as_ref().unwrap();
|
|
assert_eq!(dash.pattern.len(), 2);
|
|
assert!((dash.pattern[0] - 6.0).abs() < 1e-3 && (dash.offset - 1.0).abs() < 1e-3);
|
|
assert_eq!(l[0].appearance.fill_paint().color().unwrap().to_hex(), "#ffffff");
|
|
}
|
|
|
|
#[test]
|
|
fn roundtrip_open_path_and_even_odd() {
|
|
let mut d = doc(200.0, 200.0);
|
|
let mut bp = vectorcraft_geom::BezPath::new();
|
|
bp.move_to((10.0, 10.0));
|
|
bp.curve_to((50.0, 0.0), (80.0, 100.0), (150.0, 60.0));
|
|
add(&mut d, Node::path(NodeId(0), PathData::from_bezpath(&bp), Appearance::basic(Paint::None, Paint::solid(Color::BLACK), 2.0)));
|
|
let mut ring = shapes::rectangle(Rect::new(20.0, 100.0, 120.0, 190.0));
|
|
ring.subpaths.extend(shapes::rectangle(Rect::new(40.0, 120.0, 100.0, 170.0)).subpaths);
|
|
let mut n = rect_node(Rect::ZERO, Color::BLACK);
|
|
n.kind = NodeKind::Path { path: ring, rule: FillRule::EvenOdd, live: None, clipping: false, guide: false };
|
|
add(&mut d, n);
|
|
let out = roundtrip(&d);
|
|
let l = leaves(&out);
|
|
assert_eq!(l.len(), 2);
|
|
let pb = l[0].path_data().unwrap();
|
|
assert!(!pb.is_closed());
|
|
let b = l[0].geometric_bounds().unwrap();
|
|
let want = bp.bounding_box_exact();
|
|
assert!(close(b, want, 0.05), "{b:?} vs {want:?}");
|
|
assert!(matches!(l[1].kind, NodeKind::Path { rule: FillRule::EvenOdd, .. }));
|
|
assert_eq!(l[1].path_data().unwrap().subpaths.len(), 2);
|
|
}
|
|
|
|
trait Exact {
|
|
fn bounding_box_exact(&self) -> Rect;
|
|
}
|
|
impl Exact for vectorcraft_geom::BezPath {
|
|
fn bounding_box_exact(&self) -> Rect {
|
|
kurbo::Shape::bounding_box(self)
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn gradients_exported_as_shadings_and_reimported() {
|
|
let mut d = doc(300.0, 100.0);
|
|
let lin = GradientPaint::new(Gradient::default());
|
|
let mut n = rect_node(Rect::new(0.0, 0.0, 140.0, 100.0), Color::BLACK);
|
|
n.appearance.set_fill(Paint::Gradient(Box::new(lin)));
|
|
add(&mut d, n);
|
|
let rad = GradientPaint::new(Gradient { kind: GradientKind::Radial, ..Gradient::default() });
|
|
let mut n = rect_node(Rect::new(150.0, 0.0, 250.0, 100.0), Color::BLACK);
|
|
n.appearance.set_fill(Paint::Gradient(Box::new(rad)));
|
|
add(&mut d, n);
|
|
let s = uncompressed(&d);
|
|
let s = s.replace(' ', "");
|
|
assert!(s.contains("/ShadingType2"), "axial shading");
|
|
assert!(s.contains("/ShadingType3"), "radial shading");
|
|
let out = roundtrip(&d);
|
|
let l = leaves(&out);
|
|
assert_eq!(l.len(), 2);
|
|
let Paint::Gradient(g) = l[0].appearance.fill_paint() else { panic!("linear gradient lost: {:?}", l[0].appearance) };
|
|
assert_eq!(g.gradient.kind, GradientKind::Linear);
|
|
let geom = g.geom.unwrap();
|
|
assert!((geom.start.x - 0.0).abs() < 0.1 && (geom.end.x - 140.0).abs() < 0.1, "{geom:?}");
|
|
assert_eq!(g.gradient.stops.first().unwrap().color.to_hex(), "#ffffff");
|
|
assert_eq!(g.gradient.stops.last().unwrap().color.to_hex(), "#000000");
|
|
let Paint::Gradient(g) = l[1].appearance.fill_paint() else { panic!("radial gradient lost") };
|
|
assert_eq!(g.gradient.kind, GradientKind::Radial);
|
|
assert!((g.geom.unwrap().start - Point::new(200.0, 50.0)).hypot() < 0.1);
|
|
}
|
|
|
|
#[test]
|
|
fn hidden_objects_and_template_layers_skipped() {
|
|
let mut d = doc(200.0, 200.0);
|
|
add(&mut d, rect_node(Rect::new(10.0, 10.0, 50.0, 50.0), Color::BLACK));
|
|
let mut hidden = rect_node(Rect::new(60.0, 10.0, 90.0, 50.0), Color::BLACK);
|
|
hidden.visible = false;
|
|
add(&mut d, hidden);
|
|
let t = d.add_layer(Some("Template"));
|
|
if let NodeKind::Layer { template, .. } = &mut d.node_mut(t).unwrap().kind {
|
|
*template = true;
|
|
}
|
|
let mut n = rect_node(Rect::new(100.0, 100.0, 150.0, 150.0), Color::BLACK);
|
|
n.id = d.alloc_id();
|
|
d.insert(Some(t), 0, n).unwrap();
|
|
let mut guide = rect_node(Rect::new(0.0, 0.0, 10.0, 10.0), Color::BLACK);
|
|
if let NodeKind::Path { guide: g, .. } = &mut guide.kind {
|
|
*g = true;
|
|
}
|
|
add(&mut d, guide);
|
|
let out = roundtrip(&d);
|
|
assert_eq!(leaves(&out).len(), 1);
|
|
}
|
|
|
|
#[test]
|
|
fn objects_outside_artboard_are_culled() {
|
|
let mut d = doc(100.0, 100.0);
|
|
add(&mut d, rect_node(Rect::new(10.0, 10.0, 50.0, 50.0), Color::BLACK));
|
|
add(&mut d, rect_node(Rect::new(500.0, 500.0, 550.0, 550.0), Color::BLACK));
|
|
assert_eq!(leaves(&roundtrip(&d)).len(), 1);
|
|
}
|
|
|
|
/// A line from (10, `y`) to (90, `y`).
|
|
fn line(y: f64) -> PathData {
|
|
let mut bp = vectorcraft_geom::BezPath::new();
|
|
bp.move_to((10.0, y));
|
|
bp.line_to((90.0, y));
|
|
PathData::from_bezpath(&bp)
|
|
}
|
|
|
|
/// Art that the PDF would hold a value beyond a billion points for is left out: a path that far,
|
|
/// a gradient placed that far, a stroke so wide that its group's box reaches that far, and an
|
|
/// image placed that far. Each would be written with -2,147,483,648, which the PDF writer panics
|
|
/// on in builds with overflow checks.
|
|
#[test]
|
|
fn art_reaching_beyond_a_billion_points_is_left_out() {
|
|
let far = -2_147_483_649.0;
|
|
let shaded = |kind, start, end| {
|
|
let mut n = rect_node(Rect::new(60.0, 10.0, 90.0, 50.0), Color::BLACK);
|
|
let geom = GradientGeom { start, end, aspect: 1.0, focal: None };
|
|
let g = GradientPaint { geom: Some(geom), ..GradientPaint::new(Gradient { kind, ..Gradient::default() }) };
|
|
n.appearance.set_fill(Paint::Gradient(Box::new(g)));
|
|
n
|
|
};
|
|
let mut wide = Node::path(NodeId(0), line(0.0), Appearance::basic(Paint::None, Paint::solid(Color::BLACK), 4_294_967_296.0));
|
|
wide.opacity = 0.5;
|
|
let image = ImageObject {
|
|
key: "img1".into(),
|
|
width: 4,
|
|
height: 2,
|
|
xf: Affine::new([5.5e8, 0.0, 0.0, 10.0, far, 60.0]),
|
|
link: None,
|
|
placement: Default::default(),
|
|
};
|
|
for (what, n) in [
|
|
("path", rect_node(Rect::new(far, 60.0, 90.0, 90.0), Color::BLACK)),
|
|
("linear gradient", shaded(GradientKind::Linear, Point::new(far, 0.0), Point::new(90.0, 0.0))),
|
|
("radial gradient", shaded(GradientKind::Radial, Point::new(far, 30.0), Point::new(far + 100.0, 30.0))),
|
|
("stroke", wide),
|
|
("image", Node::new(NodeId(0), NodeKind::Image(Box::new(image)))),
|
|
] {
|
|
let mut d = doc(100.0, 100.0);
|
|
d.images.insert("img1".into(), ImageBlob::new("image/png", tiny_png()));
|
|
add(&mut d, rect_node(Rect::new(10.0, 10.0, 50.0, 50.0), Color::BLACK));
|
|
add(&mut d, n);
|
|
assert_eq!(leaves(&roundtrip(&d)).len(), 1, "{what}");
|
|
}
|
|
}
|
|
|
|
/// A dash offset beyond a billion points is written as its remainder after whole periods of the
|
|
/// pattern: -2,147,483,649 (-2,147,483,648 as an f32, which the PDF writer panics on in builds
|
|
/// with overflow checks) is 1 in a pattern of 5 and 5.
|
|
#[test]
|
|
fn dash_offsets_beyond_a_billion_points_wrap_into_their_pattern() {
|
|
let mut d = doc(100.0, 100.0);
|
|
let mut n = Node::path(NodeId(0), line(50.0), Appearance::basic(Paint::None, Paint::solid(Color::BLACK), 2.0));
|
|
n.appearance.stroke_mut().unwrap().dash = Some(Dash { pattern: vec![5.0, 5.0], offset: -2_147_483_649.0, align_corners: false });
|
|
add(&mut d, n);
|
|
assert!(uncompressed(&d).contains("[5 5]1 d"));
|
|
}
|
|
|
|
/// The page of an artboard beyond a billion points is left blank: what is on it would be placed
|
|
/// through -2,147,483,648, which the PDF writer panics on in builds with overflow checks.
|
|
#[test]
|
|
fn artboards_beyond_a_billion_points_export_blank_pages() {
|
|
let mut d = doc(100.0, 100.0);
|
|
d.artboards[0].rect = Rect::new(2_147_483_649.0, 0.0, 2_147_483_749.0, 100.0);
|
|
let mut n = rect_node(Rect::new(2_147_483_659.0, 10.0, 2_147_483_699.0, 50.0), Color::BLACK);
|
|
n.opacity = 0.5;
|
|
add(&mut d, n);
|
|
let bytes = export(&d, &PdfOptions::default()).unwrap();
|
|
assert_eq!(page_count(&bytes), 1);
|
|
assert!(leaves(&import(&bytes).unwrap()).is_empty());
|
|
}
|
|
|
|
#[test]
|
|
fn opacity_and_blend_modes() {
|
|
let mut d = doc(200.0, 200.0);
|
|
let mut n = rect_node(Rect::new(10.0, 10.0, 100.0, 100.0), Color::rgb(1.0, 0.0, 0.0));
|
|
n.opacity = 0.5;
|
|
n.blend = BlendMode::Multiply;
|
|
add(&mut d, n);
|
|
let s = uncompressed(&d);
|
|
let s = s.replace(' ', "");
|
|
assert!(s.contains("/BM/Multiply"), "blend mode in ExtGState");
|
|
assert!(s.contains("/ca0.5"), "opacity in ExtGState");
|
|
assert!(s.contains("/Transparency"), "transparency group");
|
|
let out = roundtrip(&d);
|
|
let l = leaves(&out);
|
|
assert_eq!(l.len(), 1);
|
|
// Opacity/blend end up on the object or an enclosing group.
|
|
let mut op = 1.0;
|
|
let mut bm = BlendMode::Normal;
|
|
out.walk(|n| {
|
|
op *= n.opacity * n.appearance.fill().map_or(1.0, |f| f.opacity);
|
|
if n.blend != BlendMode::Normal {
|
|
bm = n.blend;
|
|
}
|
|
});
|
|
assert!((op - 0.5).abs() < 0.01, "{op}");
|
|
assert_eq!(bm, BlendMode::Multiply);
|
|
}
|
|
|
|
#[test]
|
|
fn clip_group_roundtrip() {
|
|
let mut d = doc(200.0, 200.0);
|
|
let clip = Node::new(
|
|
NodeId(0),
|
|
NodeKind::Path {
|
|
path: shapes::ellipse(Rect::new(20.0, 20.0, 120.0, 120.0)),
|
|
rule: FillRule::NonZero,
|
|
live: None,
|
|
clipping: true,
|
|
guide: false,
|
|
},
|
|
);
|
|
let mut clip = clip;
|
|
clip.id = d.alloc_id();
|
|
let mut a = rect_node(Rect::new(0.0, 0.0, 100.0, 100.0), Color::rgb(0.0, 1.0, 0.0));
|
|
a.id = d.alloc_id();
|
|
let mut b = rect_node(Rect::new(50.0, 50.0, 150.0, 150.0), Color::rgb(0.0, 0.0, 1.0));
|
|
b.id = d.alloc_id();
|
|
let g = Node::new(NodeId(0), NodeKind::Group { children: vec![Arc::new(clip), Arc::new(a), Arc::new(b)], clip: true });
|
|
add(&mut d, g);
|
|
let out = roundtrip(&d);
|
|
let mut groups = vec![];
|
|
out.walk(|n| {
|
|
if let NodeKind::Group { clip: true, children } = &n.kind {
|
|
groups.push(children.len());
|
|
}
|
|
});
|
|
assert_eq!(groups, vec![3]);
|
|
let cg = {
|
|
let mut r = None;
|
|
out.walk(|n| {
|
|
if matches!(n.kind, NodeKind::Group { clip: true, .. }) {
|
|
r = n.geometric_bounds();
|
|
}
|
|
});
|
|
r.unwrap()
|
|
};
|
|
assert!(close(cg, Rect::new(20.0, 20.0, 120.0, 120.0), 0.05), "{cg:?}");
|
|
}
|
|
|
|
#[test]
|
|
fn text_exported_as_outlines() {
|
|
let mut d = doc(300.0, 100.0);
|
|
let t = TextObject::point(Point::new(10.0, 50.0), "Hello", CharStyle { size: 24.0, ..CharStyle::default() });
|
|
add(&mut d, Node::new(NodeId(0), NodeKind::Text(Box::new(t))));
|
|
let mut outlined = PdfOptions::uncompressed();
|
|
outlined.settings.advanced.outline_text = true;
|
|
let s = String::from_utf8_lossy(&export(&d, &outlined).unwrap()).into_owned();
|
|
assert!(!s.contains("/Font"), "no fonts when outlining text");
|
|
// Real text in an embedded font by default, as a PDF from Illustrator has it (#733).
|
|
assert!(uncompressed(&d).contains("/FontFile"), "a font embedded by default");
|
|
let r = import_with_report(&export(&d, &outlined).unwrap(), &ImportOptions::default()).unwrap();
|
|
let l = leaves(&r.document);
|
|
assert!(!l.is_empty());
|
|
assert!(l.iter().all(|n| matches!(n.kind, NodeKind::Path { .. })));
|
|
let b = l.iter().fold(None, |acc, n| vectorcraft_geom::union_opt(acc, n.geometric_bounds())).unwrap();
|
|
assert!(b.x0 >= 9.0 && b.x1 < 120.0 && b.y1 <= 56.0 && b.y0 > 25.0, "{b:?}");
|
|
}
|
|
|
|
fn tiny_png() -> Vec<u8> {
|
|
let mut img = image::RgbaImage::new(4, 2);
|
|
for (x, _, p) in img.enumerate_pixels_mut() {
|
|
*p = image::Rgba([if x < 2 { 255 } else { 0 }, 0, 0, 255]);
|
|
}
|
|
let mut out = vec![];
|
|
img.write_to(&mut std::io::Cursor::new(&mut out), image::ImageFormat::Png).unwrap();
|
|
out
|
|
}
|
|
|
|
#[test]
|
|
fn image_roundtrip() {
|
|
let mut d = doc(200.0, 200.0);
|
|
d.images.insert("img1".into(), ImageBlob::new("image/png", tiny_png()));
|
|
let im = ImageObject {
|
|
key: "img1".into(),
|
|
width: 4,
|
|
height: 2,
|
|
xf: Affine::translate((20.0, 30.0)) * Affine::scale(10.0),
|
|
link: None,
|
|
placement: Default::default(),
|
|
};
|
|
add(&mut d, Node::new(NodeId(0), NodeKind::Image(Box::new(im))));
|
|
let out = roundtrip(&d);
|
|
let l = leaves(&out);
|
|
assert_eq!(l.len(), 1);
|
|
let NodeKind::Image(im) = &l[0].kind else { panic!("expected image, got {:?}", l[0].kind_label()) };
|
|
assert_eq!((im.width, im.height), (4, 2));
|
|
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).into();
|
|
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.extras_mut().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"));
|
|
}
|