From 8bc405edbccc73ed07f9373bf1c173a7e9b22bee Mon Sep 17 00:00:00 2001 From: Trevor Brown Date: Sun, 1 Nov 2026 12:16:33 -0500 Subject: [PATCH] SVG import: the dash offset fix alone, with open-path, mixed-subpath and text tests The stretched-image fix moved to its own PR. Co-Authored-By: Claude Fable 5.1 --- crates/svg/src/import.rs | 12 +------ crates/svg/src/import/structure_tests.rs | 41 +++++++++++++----------- 2 files changed, 23 insertions(+), 30 deletions(-) diff --git a/crates/svg/src/import.rs b/crates/svg/src/import.rs index ed390ca4a..e154ab1c9 100644 --- a/crates/svg/src/import.rs +++ b/crates/svg/src/import.rs @@ -644,17 +644,7 @@ fn image(cx: &mut Ctx, img: &usvg::Image, id: &str, parent: NodeId, base: Affine let hash = add_image(cx.doc, bytes, iw, ih); let mut n = Node::new(cx.doc.alloc_id(), NodeKind::Rectangle, layer_name(id, "Image"), w, h); n.transform = transform; - let mut fill = Paint::image(hash, ImageScaleMode::Fill); - // usvg sizes the box to the picture (`meet` and `slice` are in the transform), so a box of - // another shape is `preserveAspectRatio="none"`: the picture stretched edge to edge. A Fill - // would keep its shape and crop it; a crop of the whole picture stretches it. - if (w * ih - h * iw).abs() > 1e-6 * (w * ih).max(h * iw) - && let figcraft_color::PaintKind::Image(ip) = &mut fill.kind - { - ip.scale_mode = ImageScaleMode::Crop; - ip.crop = Some(Affine::IDENTITY.as_coeffs()); - } - n.fills = vec![fill]; + n.fills = vec![Paint::image(hash, ImageScaleMode::Fill)]; cx.add(n, parent); } diff --git a/crates/svg/src/import/structure_tests.rs b/crates/svg/src/import/structure_tests.rs index ee76c2238..500675fe4 100644 --- a/crates/svg/src/import/structure_tests.rs +++ b/crates/svg/src/import/structure_tests.rs @@ -146,26 +146,29 @@ fn a_closed_outline_keeps_a_dash_offset_of_half_a_dash() { assert_eq!(node(&d, f, "l").stroke.dashes, vec![4.0, 2.0], "an open line starts half a dash in anyway"); } -/// `preserveAspectRatio="none"` stretches a picture into its box edge to edge. usvg sizes the -/// box to the picture for `meet` and `slice` (the fit is in the transform), so a box of another -/// shape is a stretch: a Fill, which keeps the picture's shape and crops it, would show the -/// middle of the picture instead. +/// An open path is a line in this respect: half a dash in is where it starts anyway, so that +/// offset is left out, and any other is applied; an outline with an open subpath among closed +/// ones is open. #[test] -fn an_image_stretched_into_its_box_stays_stretched() { - use figcraft_color::{ImageScaleMode, PaintKind}; - let (d, f) = - import(&format!(r##""##)); - let n = node(&d, f, "pic"); - assert_eq!((n.width, n.height), (40.0, 40.0)); - let Some(PaintKind::Image(ip)) = n.fills.first().map(|p| &p.kind) else { panic!("{:?}", n.fills) }; - // The 4 × 2 picture's pixels map onto the whole 40 × 40 box: 10 across, 20 down. - let m = figcraft_render::paint::image_transform(ip, 4.0, 2.0, n.width, n.height); - assert_eq!((m.sx, m.ky, m.kx, m.sy, m.tx, m.ty), (10.0, 0.0, 0.0, 20.0, 0.0, 0.0), "{ip:?}"); - // With the aspect kept (the default) the box is the picture's own shape and a Fill is exact. - let (d, f) = import(&format!(r##""##)); - let n = node(&d, f, "pic"); - assert_eq!((n.width, n.height), (40.0, 20.0)); - assert!(matches!(n.fills.first().map(|p| &p.kind), Some(PaintKind::Image(i)) if i.scale_mode == ImageScaleMode::Fill), "{:?}", n.fills); +fn an_open_path_starts_half_a_dash_in_and_takes_other_offsets() { + let (d, f) = import( + r##""##, + ); + assert_eq!(node(&d, f, "half").stroke.dashes, vec![4.0, 2.0], "half a dash in is where an open path starts"); + assert_eq!(node(&d, f, "one").stroke.dashes, vec![3.0, 2.0, 1.0, 0.0], "one in: three of the first dash are left"); + assert_eq!(node(&d, f, "mixed").stroke.dashes, vec![4.0, 2.0], "an open subpath makes the outline open"); +} + +/// A text stroke runs along glyph contours, which close, so its offset is applied as on a shape. +#[test] +fn a_text_stroke_keeps_a_dash_offset_of_half_a_dash() { + if figcraft_text::fontdb::find_face("Inter", "Regular").is_none() { + return; + } + let (d, f) = import( + r##"T"##, + ); + assert_eq!(node(&d, f, "t").stroke.dashes, vec![2.0, 2.0, 2.0, 0.0]); } #[test]