Files
vectorcraft/crates/render/src/tests_layeropts.rs
T
arhammusheer 5beac4f122 #1244: smaller objects: Node 352 -> 152 bytes, NodeKind 200 -> 80, and a cheaper undo estimate
Rarely set fields move into one optional boxed NodeExtras, and large NodeKind payloads (images,
live shapes, blends, envelopes) are boxed. Every object, and every undo step that copies it,
shrinks: a 50k-path move keeps ~24.5 MB per step instead of ~40 MB. Files stay byte-identical
(Node keeps its flat JSON through a borrowed Serialize and a from-wire Deserialize, no flatten),
and loading is slightly faster. Undo and redo reuse their step's size estimate instead of
walking the document again (8.3 -> 5.6 ms for a 50k-path move).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VmMmc1J8XeNLxhRihWv9cc

# Conflicts:
#	crates/engine/src/cmd/graph.rs
#	crates/svg/src/export.rs
2026-10-12 11:02:32 +07:00

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//! Layer Options on screen: Preview off draws a layer in outline, Dim Images fades its images;
//! exports (which leave templates out) draw both as they are.
use vectorcraft_color::{Color, Paint};
use vectorcraft_doc::{Appearance, ImageBlob, ImageObject, Node, NodeId, NodeKind};
use vectorcraft_geom::shapes;
use super::*;
/// A red square (10..40) and a 30×30 red image at (50, 10), on one layer set up by `layer`.
fn doc(layer: impl FnOnce(&mut NodeKind)) -> Document {
let mut d = Document::new(100.0, 100.0);
let img = image::RgbaImage::from_pixel(30, 30, image::Rgba([255, 0, 0, 255]));
let mut png = vec![];
img.write_to(&mut std::io::Cursor::new(&mut png), image::ImageFormat::Png).unwrap();
d.images.insert("red".into(), ImageBlob::new("image/png", png));
let l = d.layers[0].id;
let red = Appearance::basic(Paint::solid(Color::rgb(1.0, 0.0, 0.0)), Paint::None, 0.0);
let sq = Node::path(d.alloc_id(), shapes::rectangle(Rect::new(10.0, 10.0, 40.0, 40.0)), red);
d.insert(Some(l), 0, sq).unwrap();
let mut im = Node::new(
NodeId(0),
NodeKind::Image(Box::new(ImageObject {
key: "red".into(),
width: 30,
height: 30,
xf: Affine::translate((50.0, 10.0)),
link: None,
placement: Default::default(),
})),
);
im.id = d.alloc_id();
d.insert(Some(l), 9, im).unwrap();
layer(&mut d.node_mut(l).unwrap().kind);
d
}
fn render(d: &Document, export: bool) -> Rendered {
let opts = RenderOptions { background: Some([255, 255, 255, 255]), skip_templates: export, ..Default::default() };
Renderer::new().render(d, 100, 100, Affine::IDENTITY, &opts)
}
#[test]
fn preview_off_draws_the_layer_in_outline_on_screen_only() {
let d = doc(|k| {
if let NodeKind::Layer { preview, .. } = k {
*preview = false;
}
});
assert_eq!(render(&d, false).pixel(25, 25), [255, 255, 255, 255], "no fill in outline");
assert_eq!(render(&d, true).pixel(25, 25), [255, 0, 0, 255], "exports draw it as it is");
}
#[test]
fn dim_images_fades_only_the_images() {
let plain = render(&doc(|_| {}), false);
assert_eq!(plain.pixel(65, 25), [255, 0, 0, 255]);
let d = doc(|k| {
if let NodeKind::Layer { dim_images, .. } = k {
*dim_images = Some(50);
}
});
let img = render(&d, false);
let [r, g, b, _] = img.pixel(65, 25);
assert!(r == 255 && (120..=135).contains(&g) && g == b, "half way to white: {:?}", img.pixel(65, 25));
assert_eq!(img.pixel(25, 25), [255, 0, 0, 255], "vector art stays");
assert_eq!(render(&d, true).pixel(65, 25), [255, 0, 0, 255], "exports are not dimmed");
}
/// A guide path draws on screen only: exports leave it out, as they leave templates out (and as
/// the SVG, PSD and PDF exports and printing already do).
#[test]
fn guides_draw_on_screen_only() {
let mut d = Document::new(100.0, 100.0);
let l = d.layers[0].id;
let mut g = Node::path(d.alloc_id(), shapes::rectangle(Rect::new(70.0, 70.0, 90.0, 90.0)), Appearance::default());
if let NodeKind::Path { guide, .. } = &mut g.kind {
*guide = true;
}
d.insert(Some(l), 0, g).unwrap();
let drawn = |export: bool| {
let r = render(&d, export);
(60..100).flat_map(|y| (60..100).map(move |x| (x, y))).filter(|&(x, y)| r.pixel(x, y) != [255, 255, 255, 255]).count()
};
assert!(drawn(false) > 0, "on screen the guide shows");
assert_eq!(drawn(true), 0, "exports leave it out");
}