Files
vectorcraft/crates/engine/src/tests_draw2.rs
T
dotCooCoo caa6962508 Commands: Transform Each, artboards and more refuse a boolean or number given as text
object.transformEach refused reflectX, reflectY, random and copy given
as text, but read strokes, corners, objects and patterns given as text
as the key left out. With Scale Strokes & Effects on,
{"scaleH": 200, "scaleV": 200, "strokes": "false"} scaled the stroke,
recorded an undo step and kept the params for Transform Again, which
repeated the call. artboard.rearrange, artboard.move and
artboard.duplicate read their patterns option the same way, and
artboard.setProps reads its patterns, strokes and corners options the
same way.

These commands now refuse such a value with "`<key>` must be true or
false" before they change anything. So do the other options and
numbers of artboard.setProps and artboard.move, the art of Duplicate,
Copy and Cut Artboard, the shape commands and path.create, path.close,
path.setHandle, path.moveAnchors, the Pencil, Curvature, Reshape
Segment and Blob Brush options, text.create, text.createInPath,
text.setRangeStyle, text.editRange, text.getRange, text.touchType,
text.areaOptions, type.step, the font size steps,
type.opticalMarginAlignment, type.systemLayout, type.fractionalWidths,
type.ruby, the symbol and swatch commands, the Appearance panel's
commands, the gradient and freeform gradient commands, Shape Builder,
Live Paint, Image Trace, the opacity of object.setProps, the radius,
sides and relativeRadii of object.setLiveShape, the reference point of
object.setBounds and the artboard of Align, Distribute and Distribute
Spacing. They refuse a number given as text with "`<key>` must be a
number, not <value>", and a gradient stop's tint with "stop <n>:
`tint` must be a number". A null still reads as the key left out.

Docs: docs/mcp.md, docs/target-app-parity.md.
2026-10-22 06:40:27 +07:00

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//! Drawing / path-editing tools driven through the session (tools → actions → `path.*` commands).
use serde_json::json;
use vectorcraft_doc::{NodeId, NodeKind};
use vectorcraft_geom::{FillRule, PathData, Point};
use vectorcraft_tools::{Mods, PointerEvent, PointerKind, ToolKey};
use super::*;
use crate::tooling::{UiRequest, ViewInfo};
fn session() -> Session {
let mut s = Session::new();
s.execute("file.new", &json!({"width": 800, "height": 600})).unwrap();
s
}
fn view() -> ViewInfo {
ViewInfo { smart_guides: false, ..Default::default() }
}
fn rect(s: &mut Session, x: f64, y: f64, w: f64, h: f64) -> NodeId {
let r = s.execute("shape.rectangle", &json!({"x": x, "y": y, "width": w, "height": h})).unwrap();
NodeId(r["id"].as_u64().unwrap())
}
fn line(s: &mut Session, x1: f64, y1: f64, x2: f64, y2: f64) -> NodeId {
let r = s.execute("shape.line", &json!({"x1": x1, "y1": y1, "x2": x2, "y2": y2})).unwrap();
NodeId(r["id"].as_u64().unwrap())
}
fn paths(s: &Session) -> Vec<(NodeId, PathData)> {
let mut v = vec![];
s.doc().unwrap().doc.walk(|n| {
if let NodeKind::Path { path, .. } = &n.kind {
v.push((n.id, path.clone()));
}
});
v
}
fn path(s: &Session, id: NodeId) -> PathData {
s.doc().unwrap().doc.node(id).unwrap().path_data().unwrap().clone()
}
fn drag(s: &mut Session, tool: &str, pts: &[(f64, f64)], up_mods: Mods) -> Vec<UiRequest> {
let v = view();
s.select_tool(tool, v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Down, pts[0].0, pts[0].1), v).unwrap();
for &(x, y) in &pts[1..] {
s.pointer(&PointerEvent::new(PointerKind::Drag, x, y), v).unwrap();
}
let l = pts[pts.len() - 1];
s.pointer(&PointerEvent::new(PointerKind::Up, l.0, l.1).with_mods(up_mods), v).unwrap()
}
fn click(s: &mut Session, tool: &str, x: f64, y: f64) -> Vec<UiRequest> {
drag(s, tool, &[(x, y)], Mods::default())
}
/// A gesture of the active tool, `m` held throughout: press at the first point, drag through the
/// others, release at the last. The undo steps it made.
fn gesture(s: &mut Session, pts: &[(f64, f64)], m: Mods) -> usize {
let v = view();
let undo = undo_steps(s);
s.pointer(&PointerEvent::new(PointerKind::Down, pts[0].0, pts[0].1).with_mods(m), v).unwrap();
for &(x, y) in &pts[1..] {
s.pointer(&PointerEvent::new(PointerKind::Drag, x, y).with_mods(m), v).unwrap();
}
let l = pts[pts.len() - 1];
s.pointer(&PointerEvent::new(PointerKind::Up, l.0, l.1).with_mods(m), v).unwrap();
undo_steps(s) - undo
}
/// A wavy stroke sampled every 2 pt.
fn wave(x0: f64, x1: f64, y: f64) -> Vec<(f64, f64)> {
let n = ((x1 - x0) / 2.0) as usize;
(0..=n).map(|i| x0 + i as f64 * 2.0).map(|x| (x, y + 20.0 * ((x - x0) / 40.0).sin())).collect()
}
fn near(a: Point, b: Point) -> bool {
a.distance(b) < 1e-6
}
fn area(pd: &PathData) -> f64 {
vectorcraft_pathops::area(pd, FillRule::NonZero)
}
#[test]
fn pencil_fits_freehand_stroke_as_one_undo_step() {
let mut s = session();
let pts = wave(100.0, 400.0, 200.0);
let undo_before = s.doc().unwrap().history.undo.len();
drag(&mut s, "pencil", &pts, Mods::default());
let ps = paths(&s);
assert_eq!(ps.len(), 1);
let p = &ps[0].1;
assert!(!p.is_closed());
assert!(p.anchor_count() >= 2 && p.anchor_count() < pts.len() / 4, "{} anchors", p.anchor_count());
let first = p.subpaths[0].anchors[0].p;
assert!(first.distance(Point::new(100.0, 200.0)) < 1e-6);
assert_eq!(s.doc().unwrap().history.undo.len(), undo_before + 1);
// Unfilled, stroked.
let n = s.doc().unwrap().doc.node(ps[0].0).unwrap().clone();
assert!(n.appearance.fill_paint().is_none());
assert!(!n.appearance.stroke_paint().is_none());
}
#[test]
fn pencil_alt_closes_path() {
let mut s = session();
let mut pts: Vec<(f64, f64)> =
(0..=36).map(|i| (i as f64 * 10.0f64).to_radians()).map(|a| (300.0 + 80.0 * a.cos(), 300.0 + 80.0 * a.sin())).collect();
pts.pop();
drag(&mut s, "pencil", &pts, Mods { alt: true, ..Default::default() });
let ps = paths(&s);
assert!(ps[0].1.is_closed());
}
#[test]
fn pencil_continues_selected_open_path() {
let mut s = session();
let id = line(&mut s, 100.0, 100.0, 200.0, 100.0);
drag(&mut s, "pencil", &[(202.0, 101.0), (230.0, 120.0), (260.0, 150.0), (300.0, 160.0)], Mods::default());
let ps = paths(&s);
assert_eq!(ps.len(), 1, "no new object");
let p = path(&s, id);
assert!(p.anchor_count() >= 3);
let last = p.subpaths[0].anchors.last().unwrap().p;
assert!(last.distance(Point::new(300.0, 160.0)) < 1e-6);
assert_eq!(p.subpaths[0].anchors[0].p, Point::new(100.0, 100.0));
}
/// Edit Selected Paths in the middle of a path (#2850): a Pencil stroke that starts and ends on a
/// selected path replaces the section between, drawn either way; the path stays one path with
/// its ends, and is one undo step.
#[test]
fn pencil_redraws_the_section_of_a_selected_path_between_its_ends() {
let bump = [(100.0, 101.0), (125.0, 70.0), (150.0, 60.0), (175.0, 70.0), (200.0, 101.0)];
for reversed in [false, true] {
let mut s = session();
let id = line(&mut s, 0.0, 100.0, 300.0, 100.0);
let mut pts = bump.to_vec();
if reversed {
pts.reverse();
}
let undo = undo_steps(&s);
drag(&mut s, "pencil", &pts, Mods::default());
assert_eq!(paths(&s).len(), 1, "no new object");
assert_eq!(undo_steps(&s), undo + 1);
let sp = &path(&s, id).subpaths[0];
assert!(!sp.closed);
let ps: Vec<Point> = sp.anchors.iter().map(|a| a.p).collect();
assert!(near(ps[0], Point::new(0.0, 100.0)) && near(*ps.last().unwrap(), Point::new(300.0, 100.0)), "{ps:?}");
// The section starts and ends on the line, where the stroke met it, and rises between.
let on = |x: f64| ps.iter().any(|p| (p.x - x).abs() < 1.5 && (p.y - 100.0).abs() < 1e-6);
assert!(on(100.0) && on(200.0), "{reversed}: {ps:?}");
let top = kurbo::Shape::bounding_box(&path(&s, id).to_bezpath()).y0;
assert!(top < 75.0, "the bump: top {top}");
assert!(ps.windows(2).all(|w| w[0].x <= w[1].x + 1.0), "in order along the line: {ps:?}");
}
}
/// On a closed path the stroke replaces the shorter way between where it starts and ends, and the
/// path stays closed; a stroke that doesn't end on the path draws a new one.
#[test]
fn pencil_redraws_the_shorter_way_round_a_closed_path() {
let mut s = session();
let id = rect(&mut s, 0.0, 0.0, 200.0, 100.0);
s.execute("select.set", &json!({"ids": [id.0]})).unwrap();
s.execute("path.freehand", &json!({"points": [[50, 1], [80, -25], [100, -30], [120, -25], [150, 1]], "redraw": {"id": id.0, "within": 4}}))
.unwrap();
assert_eq!(paths(&s).len(), 1);
let sp = &path(&s, id).subpaths[0];
assert!(sp.closed);
let ps: Vec<Point> = sp.anchors.iter().map(|a| a.p).collect();
for corner in [(0.0, 0.0), (200.0, 0.0), (200.0, 100.0), (0.0, 100.0)] {
assert!(ps.iter().any(|p| near(*p, Point::new(corner.0, corner.1))), "{corner:?} kept: {ps:?}");
}
let top = kurbo::Shape::bounding_box(&path(&s, id).to_bezpath()).y0;
assert!(top < -20.0, "the dip: top {top}");
// Not ending on the path: a new path, the rectangle as it was.
let before = path(&s, id);
s.execute("path.freehand", &json!({"points": [[50, 100], [80, 150], [120, 160]], "redraw": {"id": id.0, "within": 4}})).unwrap();
assert_eq!(paths(&s).len(), 2);
assert_eq!(path(&s, id), before);
assert!(s.execute("path.freehand", &json!({"points": [[0, 0], [1, 1]], "redraw": {"id": id.0, "within": -1}})).is_err());
}
/// With Keep selected off, the path a stroke draws or continues is not selected afterwards, the
/// rest of the selection stays, and the stroke is one undo step.
#[test]
fn pencil_with_keep_selected_off_leaves_the_new_path_unselected() {
let mut s = session();
let r = rect(&mut s, 400.0, 400.0, 50.0, 50.0);
let selected = |s: &Session| s.doc().unwrap().selection.objects.clone();
// On (the default): the new path replaces the selection.
let on = s.execute("path.freehand", &json!({"points": [[100, 100], [150, 120], [200, 100]]})).unwrap();
assert_eq!(selected(&s), vec![NodeId(on["id"].as_u64().unwrap())]);
s.execute("select.set", &json!({"ids": [r.0]})).unwrap();
let undo = undo_steps(&s);
let off = s.execute("path.freehand", &json!({"points": [[100, 200], [150, 220], [200, 200]], "keepSelected": false})).unwrap();
let off = NodeId(off["id"].as_u64().unwrap());
assert!(s.doc().unwrap().doc.node(off).is_some());
assert_eq!(selected(&s), vec![r]);
assert_eq!(undo_steps(&s), undo + 1);
// Continuing a selected open path deselects it and keeps the rest.
let l = line(&mut s, 100.0, 300.0, 200.0, 300.0);
s.execute("select.set", &json!({"ids": [r.0, l.0]})).unwrap();
s.execute("path.freehand", &json!({"points": [[200, 300], [250, 320], [300, 300]], "extend": {"id": l.0}, "keepSelected": false})).unwrap();
assert!(path(&s, l).anchor_count() >= 3, "continued");
assert_eq!(selected(&s), vec![r]);
// The tools pass the option.
s.execute("select.none", &json!({})).unwrap();
s.select_tool("paintbrush", view()).unwrap();
s.set_tool_option("keepSelected", &json!(false));
let before = paths(&s).len();
drag(&mut s, "paintbrush", &wave(100.0, 300.0, 500.0), Mods::default());
assert_eq!(paths(&s).len(), before + 1, "a new brush path");
assert!(selected(&s).is_empty());
}
#[test]
fn paintbrush_uses_stroke_blob_brush_fills() {
let mut s = session();
drag(&mut s, "paintbrush", &wave(50.0, 200.0, 100.0), Mods::default());
let n = s.doc().unwrap().doc.node(paths(&s)[0].0).unwrap().clone();
assert!(n.appearance.fill_paint().is_none());
s.execute("select.none", &json!({})).unwrap();
drag(&mut s, "blobBrush", &[(100.0, 400.0), (200.0, 400.0)], Mods::default());
let ps = paths(&s);
assert_eq!(ps.len(), 2);
let blob = &ps[1].1;
assert!(blob.is_closed());
// 100 × 10 capsule ≈ 1000 + π·25.
assert!((area(blob) - (1000.0 + std::f64::consts::PI * 25.0)).abs() < 10.0, "{}", area(blob));
let bn = s.doc().unwrap().doc.node(ps[1].0).unwrap().clone();
assert!(bn.appearance.stroke_paint().is_none() && !bn.appearance.fill_paint().is_none());
// A second overlapping stroke of the same colour merges.
drag(&mut s, "blobBrush", &[(150.0, 380.0), (150.0, 450.0)], Mods::default());
let ps = paths(&s);
assert_eq!(ps.len(), 2, "merged into the first blob");
assert!(area(&ps[1].1) > 1500.0);
}
/// Merge only with selection: a Blob Brush stroke merges with the selected blobs it touches and
/// leaves the others. Keep selected, off by default: the blob a stroke draws or merges into is not
/// selected afterwards, and the rest of the selection stays; on, it is selected.
#[test]
fn blob_brush_merges_only_with_the_selection_and_keep_selected_off_deselects() {
let mut s = session();
let r = rect(&mut s, 600.0, 400.0, 50.0, 50.0);
let selected = |s: &Session| s.doc().unwrap().selection.objects.clone();
let blob = |s: &mut Session, p: serde_json::Value| NodeId(s.execute("path.blob", &p).unwrap()["id"].as_u64().unwrap());
s.execute("select.set", &json!({"ids": [r.0]})).unwrap();
let a = blob(&mut s, json!({"points": [[100, 60], [100, 140]], "size": 20}));
assert_eq!(selected(&s), vec![r], "Keep selected is off by default: the new blob is not selected");
let b = blob(&mut s, json!({"points": [[200, 60], [200, 140]], "size": 20, "keepSelected": true}));
assert_eq!(selected(&s), vec![b], "Keep selected on: the new blob is selected");
let n = paths(&s).len();
let (area_a, area_b) = (area(&path(&s, a)), area(&path(&s, b)));
// Only `b` is selected: the stroke across both merges into `b` alone.
let undo = undo_steps(&s);
let across = json!({"points": [[50, 100], [250, 100]], "size": 10, "mergeOnlySelection": true, "keepSelected": false});
assert_eq!(blob(&mut s, across.clone()), b);
assert_eq!(paths(&s).len(), n);
assert_eq!(area(&path(&s, a)), area_a, "a is left as it was");
assert!(area(&path(&s, b)) > area_b + 500.0, "the stroke joined b");
assert!(selected(&s).is_empty());
assert_eq!(undo_steps(&s), undo + 1);
// With nothing selected, the stroke merges with nothing, and Keep selected off leaves the new
// blob unselected.
let new = blob(&mut s, across);
assert!(new != a && new != b && paths(&s).len() == n + 1, "a new blob");
assert!(selected(&s).is_empty());
// A selection that holds no blob: a new blob, and the selection stays.
s.execute("select.set", &json!({"ids": [r.0]})).unwrap();
let other = blob(&mut s, json!({"points": [[50, 300], [250, 300]], "size": 10, "mergeOnlySelection": true, "keepSelected": false}));
assert_eq!(paths(&s).len(), n + 2);
assert_eq!(selected(&s), vec![r]);
// Without the options, a stroke merges with every touching blob, selected or not, and the
// blob it merges into is not selected.
let all = blob(&mut s, json!({"points": [[50, 100], [250, 100]], "size": 10}));
assert!([a, b, new].contains(&all) && paths(&s).len() == n, "one blob of a, b and the new one");
assert_eq!(selected(&s), vec![r]);
// Keep selected on: the blob a stroke merges into is selected.
assert_eq!(blob(&mut s, json!({"points": [[150, 80], [150, 120]], "size": 10, "keepSelected": true})), all);
assert_eq!(paths(&s).len(), n);
assert_eq!(selected(&s), vec![all]);
// The tool passes both options; Keep selected is off by default.
s.execute("select.set", &json!({"ids": [other.0]})).unwrap();
s.select_tool("blobBrush", view()).unwrap();
assert_eq!(s.tool_options()["keepSelected"], json!(false));
s.set_tool_option("mergeOnlySelection", &json!(true));
drag(&mut s, "blobBrush", &[(150.0, 50.0), (150.0, 320.0)], Mods::default());
assert_eq!(paths(&s).len(), n, "merged into the selected blob only");
assert!(selected(&s).is_empty());
assert!(s.doc().unwrap().doc.node(all).is_some() && s.doc().unwrap().doc.node(other).is_some());
}
/// Three points already curve in the saved path: both ends carry a handle into the curve.
#[test]
fn path_curvature_with_three_points_saves_end_handles() {
let mut s = session();
let pts = json!([{"x": 0, "y": 0}, {"x": 100, "y": -100}, {"x": 200, "y": 0}]);
let id = NodeId(s.execute("path.curvature", &json!({ "points": pts })).unwrap()["id"].as_u64().unwrap());
let sp = path(&s, id).subpaths[0].clone();
assert_eq!(sp.anchors.len(), 3);
let (first, mid, last) = (sp.anchors[0], sp.anchors[1], sp.anchors[2]);
assert!(first.has_out() && !first.has_in(), "{first:?}");
assert!(last.has_in() && !last.has_out(), "{last:?}");
assert_eq!(mid.kind, vectorcraft_geom::AnchorKind::Smooth);
assert!(!sp.segment_is_line(0) && !sp.segment_is_line(1));
// Two points stay a straight line.
let two = json!([{"x": 0, "y": 0}, {"x": 100, "y": -100}]);
let id = NodeId(s.execute("path.curvature", &json!({ "points": two })).unwrap()["id"].as_u64().unwrap());
assert!(path(&s, id).subpaths[0].segment_is_line(0));
}
/// The rubber band while drawing, and while going on from a selected path's end, is the path the
/// click then makes.
#[test]
fn curvature_rubber_band_is_the_path_the_click_makes() {
let band = |s: &mut Session| {
s.overlays(view()).into_iter().find_map(|o| if let vectorcraft_tools::Overlay::Path { path, .. } = o { Some(path) } else { None }).unwrap()
};
let bez = |sp: &vectorcraft_geom::SubPath| {
let mut bp = kurbo::BezPath::new();
sp.to_bezpath_into(&mut bp);
bp
};
let mut s = session();
let v = view();
s.select_tool("curvature", v).unwrap();
for (x, y) in [(100.0, 300.0), (130.0, 280.0), (300.0, 360.0)] {
s.pointer(&PointerEvent::new(PointerKind::Down, x, y), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Up, x, y), v).unwrap();
}
s.pointer(&PointerEvent::new(PointerKind::Move, 420.0, 200.0), v).unwrap();
let preview = band(&mut s);
s.pointer(&PointerEvent::new(PointerKind::Down, 420.0, 200.0), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Up, 420.0, 200.0), v).unwrap();
let id = paths(&s)[0].0;
let made = path(&s, id).subpaths[0].clone();
assert_eq!(made.anchors.len(), 4);
assert_eq!(preview, bez(&made));
// Going on from the end of a selected pen path: the band is its last segment and the new one.
s.tool_key(ToolKey::Escape, Mods::default(), v).unwrap();
let anchors = json!([{"x": 100, "y": 500}, {"x": 200, "y": 420, "in": [160, 430], "out": [240, 410]}, {"x": 320, "y": 480, "in": [290, 440]}]);
let id = NodeId(s.execute("path.create", &json!({ "anchors": anchors })).unwrap()["id"].as_u64().unwrap());
s.execute("select.set", &json!({"ids": [id.0]})).unwrap();
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 2]], "mode": "set"})).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Move, 450.0, 400.0), v).unwrap();
let preview = band(&mut s);
s.pointer(&PointerEvent::new(PointerKind::Down, 450.0, 400.0), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Up, 450.0, 400.0), v).unwrap();
let made = path(&s, id).subpaths[0].clone();
assert_eq!(made.anchors.len(), 4);
let tail = vectorcraft_geom::SubPath::new(made.anchors[1..].to_vec(), false);
assert_eq!(preview, bez(&tail));
}
/// Without a handle position, `path.convertAnchor` to smooth curves the point as the Curvature
/// tool does: along the circle through it and its neighbours.
#[test]
fn convert_anchor_to_smooth_uses_the_curvature_rule() {
let mut s = session();
let anchors = json!([{"x": 0, "y": 0}, {"x": 10, "y": 0}, {"x": 200, "y": 100}]);
let id = NodeId(s.execute("path.create", &json!({ "anchors": anchors })).unwrap()["id"].as_u64().unwrap());
s.execute("path.convertAnchor", &json!({"id": id.0, "subpath": 0, "anchor": 1, "to": "smooth"})).unwrap();
let a = path(&s, id).subpaths[0].anchors[1];
assert_eq!(a.kind, vectorcraft_geom::AnchorKind::Smooth);
// Along the circle through it and its neighbours, each between a third and two thirds of
// its own chord; the shorter side's handle is the shorter.
let (prev, next) = (Point::new(0.0, 0.0), Point::new(200.0, 100.0));
for (h, to) in [(a.h_in, prev), (a.h_out, next)] {
let r = a.p.distance(h) / a.p.distance(to);
assert!((1.0 / 3.0 - 1e-9..=2.0 / 3.0 + 1e-9).contains(&r), "{r}");
}
assert!(a.p.distance(a.h_in) < a.p.distance(a.h_out));
let (u_in, u_out) = ((a.p - a.h_in).normalize(), (a.h_out - a.p).normalize());
assert!((u_in - u_out).hypot() < 1e-9, "the handles are in line");
// Converting back takes the handles off.
s.execute("path.convertAnchor", &json!({"id": id.0, "subpath": 0, "anchor": 1, "to": "corner"})).unwrap();
assert!(!path(&s, id).subpaths[0].anchors[1].has_out());
assert!(s.execute("path.convertAnchor", &json!({"id": id.0, "subpath": 0, "anchor": 9, "to": "smooth"})).is_err());
}
#[test]
fn curvature_clicks_build_smooth_path() {
let mut s = session();
let v = view();
s.select_tool("curvature", v).unwrap();
for (x, y) in [(100.0, 300.0), (200.0, 200.0), (300.0, 300.0)] {
s.pointer(&PointerEvent::new(PointerKind::Down, x, y), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Up, x, y), v).unwrap();
}
let ps = paths(&s);
assert_eq!(ps.len(), 1);
let sp = &ps[0].1.subpaths[0];
assert_eq!(sp.anchors.len(), 3);
assert_eq!(sp.anchors[1].kind, vectorcraft_geom::AnchorKind::Smooth);
// Alt-click the middle point → corner.
s.pointer(&PointerEvent::new(PointerKind::Down, 200.0, 200.0).with_mods(Mods { alt: true, ..Default::default() }), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Up, 200.0, 200.0), v).unwrap();
assert!(!path(&s, ps[0].0).subpaths[0].anchors[1].has_out());
// Drag the middle point.
s.pointer(&PointerEvent::new(PointerKind::Down, 200.0, 200.0), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Drag, 200.0, 150.0), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Up, 200.0, 150.0), v).unwrap();
assert_eq!(path(&s, ps[0].0).subpaths[0].anchors[1].p, Point::new(200.0, 150.0));
// Esc ends; the next click starts a new path.
s.tool_key(ToolKey::Escape, Mods::default(), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Down, 500.0, 500.0), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Up, 500.0, 500.0), v).unwrap();
assert_eq!(paths(&s).len(), 2);
}
#[test]
fn curvature_click_first_point_closes() {
let mut s = session();
let v = view();
s.select_tool("curvature", v).unwrap();
for (x, y) in [(100.0, 100.0), (200.0, 100.0), (150.0, 200.0), (100.0, 100.0)] {
s.pointer(&PointerEvent::new(PointerKind::Down, x, y), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Up, x, y), v).unwrap();
}
let p = &paths(&s)[0].1;
assert!(p.is_closed());
assert_eq!(p.anchor_count(), 3);
}
/// The Curvature tool edits a path another tool drew (#798), one undo step per edit, keeping its
/// shape except where edited.
#[test]
fn curvature_edits_any_selected_path() {
let mut s = session();
let v = view();
let anchors = json!([
{"x": 100, "y": 300},
{"x": 200, "y": 200, "in": [160, 210], "out": [260, 185]},
{"x": 350, "y": 280, "in": [320, 230], "out": [380, 330]},
{"x": 450, "y": 350, "in": [420, 360], "out": [480, 300]},
{"x": 550, "y": 260, "in": [520, 290]}
]);
let id = NodeId(s.execute("path.create", &json!({ "anchors": anchors })).unwrap()["id"].as_u64().unwrap());
s.execute("select.set", &json!({"ids": [id.0]})).unwrap();
s.select_tool("curvature", v).unwrap();
let before = path(&s, id).subpaths[0].clone();
// Drag a point: only its two segments change.
assert_eq!(gesture(&mut s, &[(350.0, 280.0), (360.0, 320.0), (370.0, 340.0)], Mods::default()), 1);
let sp = path(&s, id).subpaths[0].clone();
assert_eq!(sp.anchors[2].p, Point::new(370.0, 340.0));
assert_eq!((sp.segment(0), sp.segment(3)), (before.segment(0), before.segment(3)));
assert_eq!(s.doc().unwrap().selection.anchors.get(&id).map(|a| a.len()), Some(1), "the point is current");
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(path(&s, id).subpaths[0], before);
// Alt-click toggles it, Delete removes the current point: one step each.
let (alt, steps) = (Mods { alt: true, ..Default::default() }, undo_steps(&s));
assert_eq!(gesture(&mut s, &[(200.0, 200.0)], alt), 1);
assert!(!path(&s, id).subpaths[0].anchors[1].has_out());
s.tool_key(ToolKey::Delete, Mods::default(), v).unwrap();
assert_eq!(path(&s, id).anchor_count(), 4);
assert_eq!(undo_steps(&s), steps + 2);
s.execute("edit.undo", &json!({})).unwrap();
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(path(&s, id).subpaths[0], before);
// A press on a segment adds a point, the drag moving it: one step.
s.execute("select.set", &json!({"ids": [id.0]})).unwrap();
let on = kurbo::ParamCurve::eval(&before.segment(3), 0.5);
assert_eq!(gesture(&mut s, &[(on.x, on.y), (on.x, on.y + 20.0), (on.x, on.y + 30.0)], Mods::default()), 1);
let sp = path(&s, id).subpaths[0].clone();
assert_eq!(sp.anchors.len(), 6);
assert_eq!(sp.anchors[4].p, Point::new(on.x, on.y + 30.0));
assert_eq!((sp.segment(0), sp.segment(1), sp.segment(2)), (before.segment(0), before.segment(1), before.segment(2)));
s.execute("edit.undo", &json!({})).unwrap();
// A click on an end, then two more: the path goes on, its old segments unchanged.
let steps = undo_steps(&s);
for (x, y) in [(550.0, 260.0), (650.0, 300.0), (720.0, 220.0)] {
gesture(&mut s, &[(x, y)], Mods::default());
}
assert_eq!(undo_steps(&s), steps + 2, "selecting the end is no step");
let sp = path(&s, id).subpaths[0].clone();
assert_eq!(sp.anchors.len(), 7);
assert!((0..4).all(|i| sp.segment(i) == before.segment(i)));
assert_eq!(sp.anchors[6].p, Point::new(720.0, 220.0));
// The other end closes it; Esc and a click away start a new path.
gesture(&mut s, &[(100.0, 300.0)], Mods::default());
assert!(path(&s, id).is_closed());
s.tool_key(ToolKey::Escape, Mods::default(), v).unwrap();
gesture(&mut s, &[(700.0, 550.0)], Mods::default());
assert_eq!(paths(&s).len(), 2);
}
#[test]
fn add_and_delete_anchor_tools() {
let mut s = session();
let id = rect(&mut s, 100.0, 100.0, 100.0, 100.0);
click(&mut s, "addAnchor", 150.0, 100.0);
let p = path(&s, id);
assert_eq!(p.anchor_count(), 5);
assert!(near(p.subpaths[0].anchors[1].p, Point::new(150.0, 100.0)));
click(&mut s, "deleteAnchor", 150.0, 100.0);
click(&mut s, "deleteAnchor", 200.0, 200.0);
let p = path(&s, id);
assert_eq!(p.anchor_count(), 3);
assert!(p.is_closed());
}
#[test]
fn delete_anchor_on_circle_keeps_curve() {
let mut s = session();
let r = s.execute("shape.ellipse", &json!({"x": 100, "y": 100, "width": 200, "height": 200})).unwrap();
let id = NodeId(r["id"].as_u64().unwrap());
let before = path(&s, id);
let a = before.subpaths[0].anchors[1].p;
click(&mut s, "deleteAnchor", a.x, a.y);
let p = path(&s, id);
assert_eq!(p.anchor_count(), before.anchor_count() - 1);
// The remaining curve still bulges out towards the removed anchor.
let b = p.bounds().unwrap();
assert!(b.width() > 150.0 && b.height() > 150.0, "{b:?}");
}
#[test]
fn anchor_point_tool_converts() {
let mut s = session();
let id = rect(&mut s, 100.0, 100.0, 100.0, 100.0);
drag(&mut s, "anchorPoint", &[(100.0, 100.0), (130.0, 80.0)], Mods::default());
let a = path(&s, id).subpaths[0].anchors[0];
assert_eq!(a.kind, vectorcraft_geom::AnchorKind::Smooth);
assert_eq!(a.h_out, Point::new(130.0, 80.0));
assert_eq!(a.h_in, Point::new(70.0, 120.0));
// Click the smooth anchor → corner again.
click(&mut s, "anchorPoint", 100.0, 100.0);
let a = path(&s, id).subpaths[0].anchors[0];
assert!(!a.has_in() && !a.has_out());
// Drag a segment → it bends so the grabbed point follows.
drag(&mut s, "anchorPoint", &[(150.0, 200.0), (150.0, 240.0)], Mods::default());
let p = path(&s, id);
let (_, _, _, q, d) = p.nearest(Point::new(150.0, 240.0)).unwrap();
assert!(d < 0.5, "{q:?}");
}
/// #2267: clicking one handle end with the Anchor Point tool retracts that handle alone, as one
/// undo step.
#[test]
fn anchor_point_tool_click_on_a_handle_retracts_it() {
let mut s = session();
let id = rect(&mut s, 100.0, 100.0, 100.0, 100.0);
drag(&mut s, "anchorPoint", &[(100.0, 100.0), (130.0, 80.0)], Mods::default());
s.execute("select.set", &json!({"ids": [id.0]})).unwrap();
let smooth = path(&s, id).subpaths[0].anchors[0];
let undo = undo_steps(&s);
click(&mut s, "anchorPoint", 130.0, 80.0);
let a = path(&s, id).subpaths[0].anchors[0];
assert!(!a.has_out());
assert_eq!((a.p, a.h_in, a.kind), (smooth.p, smooth.h_in, vectorcraft_geom::AnchorKind::Corner));
assert_eq!(undo_steps(&s), undo + 1);
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(path(&s, id).subpaths[0].anchors[0], smooth);
}
#[test]
fn scissors_opens_closed_path() {
let mut s = session();
let id = rect(&mut s, 100.0, 100.0, 100.0, 100.0);
click(&mut s, "scissors", 200.0, 150.0);
let p = path(&s, id);
assert!(!p.is_closed());
assert_eq!(p.anchor_count(), 6);
assert!(near(p.subpaths[0].anchors[0].p, Point::new(200.0, 150.0)));
assert!(near(p.subpaths[0].anchors[5].p, Point::new(200.0, 150.0)));
}
#[test]
fn scissors_splits_open_path_in_two() {
let mut s = session();
let id = line(&mut s, 100.0, 100.0, 300.0, 100.0);
click(&mut s, "scissors", 150.0, 100.0);
let ps = paths(&s);
assert_eq!(ps.len(), 2);
assert!(near(path(&s, id).subpaths[0].anchors[1].p, Point::new(150.0, 100.0)));
assert!(near(ps[1].1.subpaths[0].anchors[0].p, Point::new(150.0, 100.0)));
assert_eq!(ps[1].1.subpaths[0].anchors[1].p, Point::new(300.0, 100.0));
assert_eq!(s.doc().unwrap().selection.objects.len(), 2);
// Clicking an end point is refused without panicking.
assert!(s.execute("path.split", &json!({"id": id.0, "subpath": 0, "anchor": 0})).is_err());
}
#[test]
fn knife_cuts_rect_into_two_pieces() {
let mut s = session();
rect(&mut s, 100.0, 100.0, 200.0, 100.0);
s.execute("select.none", &json!({})).unwrap();
let undo = s.doc().unwrap().history.undo.len();
drag(&mut s, "knife", &[(200.0, 50.0), (210.0, 150.0), (200.0, 250.0)], Mods::default());
let ps = paths(&s);
assert_eq!(ps.len(), 2);
let total: f64 = ps.iter().map(|(_, p)| area(p)).sum();
assert!((total - 20000.0).abs() < 50.0, "{total}");
assert!(ps.iter().all(|(_, p)| p.is_closed() && area(p) > 9000.0));
assert_eq!(s.doc().unwrap().history.undo.len(), undo + 1);
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(paths(&s).len(), 1);
}
#[test]
fn knife_partial_cut_does_nothing() {
let mut s = session();
let id = rect(&mut s, 100.0, 100.0, 200.0, 100.0);
s.execute("select.none", &json!({})).unwrap();
let r = s.execute("path.knife", &json!({"points": [[200, 50], [200, 150]]})).unwrap();
assert_eq!(r["ids"], json!([]));
assert_eq!(path(&s, id).anchor_count(), 4);
}
#[test]
fn eraser_splits_shapes_and_lines() {
let mut s = session();
rect(&mut s, 100.0, 100.0, 200.0, 100.0);
line(&mut s, 100.0, 300.0, 300.0, 300.0);
s.execute("select.none", &json!({})).unwrap();
drag(&mut s, "eraser", &[(200.0, 50.0), (200.0, 350.0)], Mods::default());
let ps = paths(&s);
assert_eq!(ps.len(), 4, "two rect halves + two line pieces");
let closed: Vec<&PathData> = ps.iter().map(|p| &p.1).filter(|p| p.is_closed()).collect();
assert_eq!(closed.len(), 2);
let total: f64 = closed.iter().map(|p| area(p)).sum();
assert!((total - (20000.0 - 1000.0)).abs() < 50.0, "{total}");
let open: Vec<&PathData> = ps.iter().map(|p| &p.1).filter(|p| !p.is_closed()).collect();
let len: f64 = open.iter().map(|p| p.length()).sum();
assert!((len - 190.0).abs() < 0.1, "{len}");
}
#[test]
fn eraser_removes_small_shape_entirely() {
let mut s = session();
rect(&mut s, 100.0, 100.0, 4.0, 4.0);
s.execute("select.none", &json!({})).unwrap();
s.execute("path.eraseRegion", &json!({"points": [[102, 102]], "size": 20})).unwrap();
assert!(paths(&s).is_empty());
}
#[test]
fn path_eraser_splits_selected_path() {
let mut s = session();
let id = line(&mut s, 100.0, 100.0, 300.0, 100.0);
drag(&mut s, "pathEraser", &[(180.0, 100.0), (220.0, 100.0)], Mods::default());
let ps = paths(&s);
assert_eq!(ps.len(), 2);
assert!(path(&s, id).subpaths[0].anchors[1].p.x < 180.0);
}
#[test]
fn smooth_tool_reduces_jagged_path() {
let mut s = session();
let anchors: Vec<_> = (0..=40).map(|i| json!({"x": 100.0 + i as f64 * 5.0, "y": 200.0 + if i % 2 == 0 { 0.0 } else { 1.5 }})).collect();
let r = s.execute("path.create", &json!({"anchors": anchors})).unwrap();
let id = NodeId(r["id"].as_u64().unwrap());
drag(&mut s, "smooth", &[(90.0, 200.0), (200.0, 200.0), (310.0, 200.0)], Mods::default());
let p = path(&s, id);
assert!(p.anchor_count() < 20, "{}", p.anchor_count());
assert_eq!(p.subpaths[0].anchors[0].p, Point::new(100.0, 200.0));
}
/// #1512: a short drag over a small bump smooths the stretch of path under it. The long straight
/// sides next to the bump stay straight lines from their far ends, which keep their place.
#[test]
fn a_short_smooth_drag_leaves_the_rest_of_long_segments_alone() {
let mut s = session();
let anchors: Vec<_> =
[(50.0, 200.0), (190.0, 200.0), (200.0, 192.0), (210.0, 200.0), (350.0, 200.0)].map(|(x, y)| json!({"x": x, "y": y})).to_vec();
let r = s.execute("path.create", &json!({"anchors": anchors})).unwrap();
let id = NodeId(r["id"].as_u64().unwrap());
let before = path(&s, id);
drag(&mut s, "smooth", &[(195.0, 194.0), (205.0, 194.0)], Mods::default());
let p = path(&s, id);
assert_ne!(p, before, "the bump is smoothed");
let a = &p.subpaths[0].anchors;
let (first, second, last) = (a[0], a[1], a[a.len() - 1]);
assert!(first.p == Point::new(50.0, 200.0) && !first.has_out() && !second.has_in(), "the left side is a line still: {first:?} {second:?}");
assert!(last.p == Point::new(350.0, 200.0) && !last.has_in() && !a[a.len() - 2].has_out(), "and the right one: {last:?}");
// Every other anchor is within the tool's reach of the drag (12 px either way).
for x in &a[1..a.len() - 1] {
assert!((182.0..=218.0).contains(&x.p.x) && (190.0..=201.0).contains(&x.p.y), "{x:?}");
}
}
#[test]
fn join_tool_joins_two_lines() {
let mut s = session();
let a = line(&mut s, 100.0, 100.0, 200.0, 100.0);
line(&mut s, 205.0, 100.0, 300.0, 150.0);
s.execute("select.none", &json!({})).unwrap();
drag(&mut s, "join", &[(202.0, 90.0), (202.0, 110.0)], Mods::default());
let ps = paths(&s);
assert_eq!(ps.len(), 1);
let p = path(&s, a);
assert_eq!(p.anchor_count(), 3);
assert_eq!(p.subpaths[0].anchors[1].p, Point::new(202.5, 100.0));
assert_eq!(p.subpaths[0].anchors[2].p, Point::new(300.0, 150.0));
}
#[test]
fn line_family_tools_draw_and_click_asks_dialog() {
let mut s = session();
drag(&mut s, "arc", &[(100.0, 100.0), (200.0, 150.0)], Mods::default());
drag(&mut s, "spiral", &[(400.0, 300.0), (450.0, 300.0)], Mods::default());
drag(&mut s, "rectangularGrid", &[(100.0, 300.0), (200.0, 400.0)], Mods::default());
drag(&mut s, "polarGrid", &[(500.0, 100.0), (600.0, 200.0)], Mods::default());
let top = s.doc().unwrap().doc.layers[0].children().unwrap().len();
assert_eq!(top, 4);
let b = paths(&s)[0].1.bounds().unwrap();
assert!((b.width() - 100.0).abs() < 1e-6 && (b.height() - 50.0).abs() < 1e-6, "{b:?}");
let ui = click(&mut s, "polarGrid", 10.0, 10.0);
assert_eq!(ui, vec![UiRequest::Dialog("polarGrid".into(), json!({"x": 10.0, "y": 10.0}))]);
}
/// The children of the grid a `shape.rectangularGrid` / `shape.polarGrid` call made, bottom first.
fn grid(s: &mut Session, cmd: &str, p: serde_json::Value) -> Vec<std::sync::Arc<vectorcraft_doc::Node>> {
let id = NodeId(s.execute(cmd, &p).unwrap()["id"].as_u64().unwrap());
s.doc().unwrap().doc.node(id).unwrap().children().unwrap().to_vec()
}
/// `base` with the keys of `extra` added.
fn with(base: &serde_json::Value, extra: serde_json::Value) -> serde_json::Value {
let mut p = base.clone();
p.as_object_mut().unwrap().extend(extra.as_object().unwrap().clone());
p
}
fn is_filled(n: &vectorcraft_doc::Node) -> bool {
n.appearance.fill().is_some_and(|f| f.paint != vectorcraft_color::Paint::None)
}
/// #1377: the Rectangular Grid options. By default the frame is one rectangle under evenly spaced
/// dividers and nothing is filled; `frame: false` draws its four sides instead, `fill` paints the
/// current fill and the skews crowd the dividers to the top / right (positive) or bottom / left.
#[test]
fn rectangular_grid_options_frame_fill_and_skew() {
const CMD: &str = "shape.rectangularGrid";
let mut s = session();
s.execute("paint.setFill", &json!({"color": "#ff0000"})).unwrap();
let base = json!({"x": 0, "y": 0, "width": 100, "height": 100, "rows": 3, "columns": 3});
// The y of the three horizontal dividers and the x of the three vertical ones (the last six children).
let dividers = |g: &[std::sync::Arc<vectorcraft_doc::Node>]| {
let starts: Vec<Point> = g[g.len() - 6..].iter().map(|n| n.path_data().unwrap().subpaths[0].anchors[0].p).collect();
starts[..3].iter().map(|p| p.y).chain(starts[3..].iter().map(|p| p.x)).collect::<Vec<_>>()
};
let plain = grid(&mut s, CMD, base.clone());
assert_eq!(plain.len(), 7);
assert!(plain[0].path_data().unwrap().is_closed(), "the frame lies under the dividers");
assert!(plain.iter().all(|n| !is_filled(n) && n.appearance.stroke().is_some()));
assert_eq!(dividers(&plain), [25.0, 50.0, 75.0, 25.0, 50.0, 75.0]);
// No frame: its four sides are lines of their own.
let sides = grid(&mut s, CMD, with(&base, json!({"frame": false})));
assert_eq!(sides.len(), 10);
assert!(sides.iter().all(|n| !n.path_data().unwrap().is_closed() && n.path_data().unwrap().anchor_count() == 2));
assert_eq!(dividers(&sides), dividers(&plain));
let filled = grid(&mut s, CMD, with(&base, json!({"fill": true})));
assert!(filled.iter().all(|n| is_filled(n)), "Fill Grid paints the current fill");
assert_eq!(filled[0].appearance.fill().unwrap().paint, s.paint.fill);
// Skew: toward the top and the right when positive, the bottom and the left when negative;
// past ±500 % is ±500 %.
let top_right = dividers(&grid(&mut s, CMD, with(&base, json!({"rowSkew": 100, "columnSkew": 100}))));
for (got, want) in top_right.iter().zip([6.25, 25.0, 56.25, 43.75, 75.0, 93.75]) {
assert!((got - want).abs() < 1e-9, "{top_right:?}");
}
let bottom_left = dividers(&grid(&mut s, CMD, with(&base, json!({"rowSkew": -100, "columnSkew": -100}))));
assert!(bottom_left[1] > 50.0 && bottom_left[4] < 50.0, "{bottom_left:?}");
let most = dividers(&grid(&mut s, CMD, with(&base, json!({"rowSkew": 500, "columnSkew": -500}))));
let beyond = dividers(&grid(&mut s, CMD, with(&base, json!({"rowSkew": 1e300, "columnSkew": -1e300}))));
assert_eq!(most, beyond);
assert!(most.iter().all(|v| *v > 0.0 && *v < 100.0), "{most:?}");
}
/// #1377: the Polar Grid options. The ellipses lie under the radial dividers, largest first;
/// `compound` pairs them into compound-path rings, `fill` paints the current fill and the skews
/// crowd the ellipses outward and the radial dividers clockwise of the top one (positive).
#[test]
fn polar_grid_options_compound_fill_and_skew() {
const CMD: &str = "shape.polarGrid";
let mut s = session();
s.execute("paint.setFill", &json!({"color": "#00ff00"})).unwrap();
let base = json!({"x": 0, "y": 0, "width": 100, "height": 100, "concentric": 3, "radial": 4});
let width = |n: &vectorcraft_doc::Node| n.geometric_bounds().unwrap().width();
let tips =
|g: &[std::sync::Arc<vectorcraft_doc::Node>]| g[4..].iter().map(|n| n.path_data().unwrap().subpaths[0].anchors[1].p).collect::<Vec<_>>();
let plain = grid(&mut s, CMD, base.clone());
assert_eq!(plain.len(), 8);
assert_eq!(plain[..4].iter().map(|n| width(n).round()).collect::<Vec<_>>(), [100.0, 75.0, 50.0, 25.0], "largest at the bottom");
assert!(plain[..4].iter().all(|n| n.path_data().unwrap().is_closed()) && plain[4..].iter().all(|n| !n.path_data().unwrap().is_closed()));
assert!(plain.iter().all(|n| !is_filled(n)));
assert!(grid(&mut s, CMD, with(&base, json!({"fill": true}))).iter().all(|n| is_filled(n)));
// Compound: 4 ellipses make 2 rings, each a compound path of an outside and a hole running
// against it that carries the grid's paint itself; with 5, the innermost ellipse stays a path.
let rings = grid(&mut s, CMD, with(&base, json!({"compound": true, "fill": true})));
assert_eq!(rings.len(), 6);
for (ring, sizes) in rings[..2].iter().zip([[100.0, 75.0], [50.0, 25.0]]) {
let NodeKind::Compound { children, rule } = &ring.kind else { panic!("{:?}", ring.kind) };
assert_eq!(*rule, FillRule::NonZero);
assert_eq!(children.iter().map(|n| width(n).round()).collect::<Vec<_>>(), sizes);
let areas: Vec<f64> = children.iter().map(|n| n.path_data().unwrap().subpaths[0].signed_area()).collect();
assert!(areas[0] * areas[1] < 0.0, "the hole runs against the outside: {areas:?}");
assert!(is_filled(ring) && ring.appearance.stroke().is_some());
}
let five = grid(&mut s, CMD, with(&base, json!({"compound": true, "concentric": 4, "radial": 0})));
assert_eq!(five.iter().map(|n| matches!(n.kind, NodeKind::Compound { .. })).collect::<Vec<_>>(), [true, true, false]);
// Skew.
let out = grid(&mut s, CMD, with(&base, json!({"concentricSkew": 100, "radialSkew": 500})));
for (n, want) in out[..4].iter().zip([100.0, 93.75, 75.0, 43.75]) {
assert!((width(n) - want).abs() < 1e-6, "{}", width(n));
}
assert!(tips(&out)[0].distance(Point::new(50.0, 0.0)) < 1e-9, "the top divider stays");
assert!(tips(&out)[1..].iter().all(|t| t.x > 50.0), "clockwise of the top: {:?}", tips(&out));
let inward = grid(&mut s, CMD, with(&base, json!({"concentricSkew": -100, "radialSkew": -500})));
assert!((width(&inward[1]) - 56.25).abs() < 1e-6);
assert!(tips(&inward)[1..].iter().all(|t| t.x < 50.0), "counterclockwise of the top: {:?}", tips(&inward));
}
/// The grid options are checked: a skew is a number and a switch true or false, or the command
/// fails without an undo step.
#[test]
fn grid_commands_reject_options_of_the_wrong_type() {
let mut s = session();
let size = json!({"x": 0, "y": 0, "width": 10, "height": 10});
for (cmd, key, value) in [
("shape.rectangularGrid", "rowSkew", json!("50")),
("shape.rectangularGrid", "columnSkew", json!(true)),
("shape.rectangularGrid", "frame", json!(1)),
("shape.rectangularGrid", "fill", json!("yes")),
("shape.polarGrid", "concentricSkew", json!([1])),
("shape.polarGrid", "radialSkew", json!({})),
("shape.polarGrid", "compound", json!(0)),
("shape.polarGrid", "fill", json!("true")),
] {
let before = s.doc().unwrap().history.undo.len();
let p = with(&size, json!({key: value}));
assert!(s.execute(cmd, &p).is_err(), "{cmd} {p}");
assert_eq!(s.doc().unwrap().history.undo.len(), before, "{cmd} left an undo step");
assert!(s.execute(cmd, &with(&size, json!({key: null}))).is_ok(), "{cmd}: null is the default");
}
}
#[test]
fn draw2_commands_reject_bad_params() {
let mut s = session();
let id = rect(&mut s, 0.0, 0.0, 10.0, 10.0);
for (cmd, p) in [
("path.freehand", json!({})),
("path.freehand", json!({"points": [[1, 2]]})),
("path.curvature", json!({"points": []})),
("path.removeAnchor", json!({"id": id.0, "anchor": 99})),
("path.removeAnchors", json!({})),
("path.convertAnchor", json!({"id": 9999, "anchor": 0, "to": "corner"})),
("path.reshapeSegment", json!({"id": id.0, "segment": 42})),
("path.split", json!({"id": id.0})),
("path.split", json!({"id": id.0, "segment": 0, "t": "x"})),
("path.knife", json!({"points": [[0, 0]]})),
("path.eraseRegion", json!({"points": [[0, 0]], "size": -1})),
("path.blob", json!({"points": "nope"})),
("path.joinScrub", json!({"points": []})),
] {
let before = s.doc().unwrap().history.undo.len();
assert!(s.execute(cmd, &p).is_err(), "{cmd} {p}");
assert_eq!(s.doc().unwrap().history.undo.len(), before, "{cmd} left an undo step");
}
}
/// The Pencil refuses a `fidelity` or a redraw `within` given as text or as another value that is
/// not a number, and draws or redraws nothing; null is read as the key left out.
#[test]
fn pencil_refuses_a_fidelity_or_within_given_as_text() {
let mut s = session();
let id = line(&mut s, 100.0, 100.0, 300.0, 100.0);
let stroke = json!({"points": [[100, 100], [150, 140], [200, 140], [250, 100]]});
refuses_a_number_given_as_text(&mut s, "path.freehand", &stroke, "fidelity");
for v in [json!("12"), json!([12]), json!(false)] {
let p = with(&stroke, json!({"redraw": {"id": id.0, "within": v}}));
refuses_with(&mut s, "path.freehand", &p, &format!("`within` must be a number, not {v}"));
}
let before = path(&s, id);
s.execute("path.freehand", &with(&stroke, json!({"fidelity": null, "redraw": {"id": id.0, "within": null}}))).unwrap();
assert!(path(&s, id) != before, "the stroke redraws the line within 12 pt");
}
/// The drawing tools' commands refuse a point whose x or y is not a number, such as "10" or a point
/// written as text, and a pen pressure given as text, instead of leaving the point out or drawing it
/// at full pressure; the document stays as it was.
#[test]
fn drawing_commands_refuse_a_point_or_pressure_given_as_text() {
let mut s = session();
let id = rect(&mut s, 100.0, 100.0, 100.0, 100.0);
s.execute("select.set", &json!({"ids": [id.0]})).unwrap();
let good = [json!([90, 150]), json!([150, 150]), json!([210, 150])];
let cmds = ["path.freehand", "path.knife", "path.eraseRegion", "path.eraseSegments", "path.smoothRegion", "path.joinScrub", "path.blob"];
for cmd in cmds.into_iter().chain(["path.curvature"]) {
for bad in [json!(["150", 150]), json!({"x": 150, "y": "150"}), json!("150, 150"), json!([150]), json!(null)] {
let points: Vec<_> = good.iter().cloned().chain([bad]).collect();
refuses_with(&mut s, cmd, &json!({"points": points}), "x and y must both be numbers");
}
}
for cmd in cmds {
for bad in [json!([150, 150, "0.5"]), json!({"x": 150, "y": 150, "pressure": "0.5"})] {
let points: Vec<_> = good.iter().cloned().chain([bad]).collect();
refuses_with(&mut s, cmd, &json!({"points": points}), "`pressure` must be a number, not \"0.5\"");
}
}
let pressed = json!({"points": [[100, 400], [150, 420, null], {"x": 200, "y": 400, "pressure": 0.5}], "keepSelected": false});
s.execute("path.freehand", &pressed).unwrap();
}
/// The Eraser, Path Eraser, Smooth, Join and Blob Brush commands refuse a size, width, radius,
/// fidelity or tolerance given as text or as another value that is not a number, and change
/// nothing; null is read as the key left out.
#[test]
fn drawing_commands_refuse_a_size_given_as_text() {
let mut s = session();
let id = rect(&mut s, 100.0, 100.0, 100.0, 100.0);
s.execute("select.set", &json!({"ids": [id.0]})).unwrap();
let stroke = json!({"points": [[90, 150], [150, 150], [210, 150]]});
for (cmd, key) in [
("path.eraseRegion", "size"),
("path.eraseSegments", "width"),
("path.smoothRegion", "radius"),
("path.smoothRegion", "fidelity"),
("path.joinScrub", "tolerance"),
("path.blob", "size"),
] {
refuses_a_number_given_as_text(&mut s, cmd, &stroke, key);
}
let erased = s.execute("path.eraseRegion", &with(&stroke, json!({"size": null}))).unwrap();
assert_eq!(erased["ids"].as_array().map(Vec::len), Some(2), "the default 10 pt Eraser cuts the square in two: {erased}");
}
/// A path of two open subpaths, each of three anchors from x 100 to x 300 with a middle anchor that
/// has two handles: subpath 0 at y 100, subpath 1 at y 300.
fn two_subpaths(s: &mut Session) -> NodeId {
let id = curve(s);
let sub = |y: f64| {
let anchors = json!([
{"x": 100, "y": y, "out": [130, y - 30.0]},
{"x": 200, "y": y, "in": [170, y - 30.0], "out": [230, y - 30.0]},
{"x": 300, "y": y, "in": [270, y - 30.0]},
]);
json!({"anchors": anchors, "closed": false})
};
s.execute("path.setAnchors", &json!({"id": id.0, "subpaths": [sub(100.0), sub(300.0)]})).unwrap();
id
}
/// Runs `cmd` with `p` and `key` set to each of 1.5, -1 and "1": each call fails with an error that
/// names `key`, and the document and the undo history stay as they were.
fn refuses_an_index_that_is_not_whole(s: &mut Session, cmd: &str, p: &serde_json::Value, key: &str) {
for v in [json!(1.5), json!(-1), json!("1")] {
let mut p = p.clone();
p[key] = v;
let before = s.doc().unwrap().doc.clone();
let undo = undo_steps(s);
let Err(e) = s.execute(cmd, &p) else { panic!("{cmd} {p} succeeded") };
assert!(e.to_string().contains(&format!("`{key}`")), "{cmd} {p}: {e}");
assert!(s.doc().unwrap().doc == before, "{cmd} {p} changed the document");
assert_eq!(undo_steps(s), undo, "{cmd} {p} left an undo step");
}
}
/// Runs `cmd` with `p` and `key` set to each of "10", [10] and true: each call fails with
/// "`key` must be a number, not <value>", and the document and the undo history stay as they were.
fn refuses_a_number_given_as_text(s: &mut Session, cmd: &str, p: &serde_json::Value, key: &str) {
for v in [json!("10"), json!([10]), json!(true)] {
let mut p = p.clone();
p[key] = v.clone();
let before = s.doc().unwrap().doc.clone();
let undo = undo_steps(s);
let r = s.execute(cmd, &p);
let want = format!("`{key}` must be a number, not {v}");
assert!(matches!(&r, Err(EngineError::BadParams { msg, .. }) if *msg == want), "{cmd} {p}: {r:?}");
assert!(s.doc().unwrap().doc == before, "{cmd} {p} changed the document");
assert_eq!(undo_steps(s), undo, "{cmd} {p} left an undo step");
}
}
/// Runs `cmd` with `p`: the call fails with `want`, and the document and the undo history stay as
/// they were.
fn refuses_with(s: &mut Session, cmd: &str, p: &serde_json::Value, want: &str) {
let before = s.doc().unwrap().doc.clone();
let undo = undo_steps(s);
let r = s.execute(cmd, p);
assert!(matches!(&r, Err(EngineError::BadParams { msg, .. }) if msg == want), "{cmd} {p}: {r:?}");
assert!(s.doc().unwrap().doc == before, "{cmd} {p} changed the document");
assert_eq!(undo_steps(s), undo, "{cmd} {p} left an undo step");
}
/// Runs `cmd` with `p` on path `id` (made by [`two_subpaths`]) with `subpath: 1`, without `subpath`
/// and with `subpath: null`, undoing each: the first changes subpath 1 alone, and the others change
/// subpath 0 alone.
fn edits_the_subpath_given(s: &mut Session, cmd: &str, p: &serde_json::Value, id: NodeId) {
let before = path(s, id).subpaths;
for (si, p) in [(1, with(p, json!({"subpath": 1}))), (0, p.clone()), (0, with(p, json!({"subpath": null})))] {
s.execute(cmd, &p).unwrap();
let after = path(s, id).subpaths;
assert_eq!(after.len(), 2, "{cmd} {p}");
assert!(after[si] != before[si] && after[1 - si] == before[1 - si], "{cmd} {p}: {after:?}");
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(path(s, id).subpaths, before, "{cmd} {p}: undo");
}
}
#[test]
fn curvature_edit_refuses_a_subpath_that_is_not_a_whole_number() {
let mut s = session();
let id = two_subpaths(&mut s);
let p = json!({"id": id.0, "op": "move", "anchor": 1, "x": 200, "y": 150});
refuses_an_index_that_is_not_whole(&mut s, "path.curvatureEdit", &p, "subpath");
edits_the_subpath_given(&mut s, "path.curvatureEdit", &p, id);
}
#[test]
fn remove_anchor_refuses_a_subpath_that_is_not_a_whole_number() {
let mut s = session();
let id = two_subpaths(&mut s);
let p = json!({"id": id.0, "anchor": 1});
refuses_an_index_that_is_not_whole(&mut s, "path.removeAnchor", &p, "subpath");
edits_the_subpath_given(&mut s, "path.removeAnchor", &p, id);
}
#[test]
fn convert_anchor_refuses_a_subpath_that_is_not_a_whole_number() {
let mut s = session();
let id = two_subpaths(&mut s);
let p = json!({"id": id.0, "anchor": 1, "to": "corner"});
refuses_an_index_that_is_not_whole(&mut s, "path.convertAnchor", &p, "subpath");
edits_the_subpath_given(&mut s, "path.convertAnchor", &p, id);
}
#[test]
fn reshape_segment_refuses_a_subpath_that_is_not_a_whole_number() {
let mut s = session();
let id = two_subpaths(&mut s);
let p = json!({"id": id.0, "segment": 0, "t": 0.5, "dx": 0, "dy": 20});
refuses_an_index_that_is_not_whole(&mut s, "path.reshapeSegment", &p, "subpath");
edits_the_subpath_given(&mut s, "path.reshapeSegment", &p, id);
}
#[test]
fn split_refuses_a_subpath_anchor_or_segment_that_is_not_a_whole_number() {
// A bad `anchor` beside a good `segment` is refused, and so is a bad `segment` beside a good
// `anchor`.
let mut s = session();
let id = two_subpaths(&mut s);
let at_anchor = json!({"id": id.0, "anchor": 1});
let at_segment = json!({"id": id.0, "segment": 0, "t": 0.5});
refuses_an_index_that_is_not_whole(&mut s, "path.split", &at_anchor, "subpath");
refuses_an_index_that_is_not_whole(&mut s, "path.split", &at_segment, "subpath");
refuses_an_index_that_is_not_whole(&mut s, "path.split", &at_segment, "anchor");
refuses_an_index_that_is_not_whole(&mut s, "path.split", &at_anchor, "segment");
let before = path(&s, id).subpaths;
for (si, p) in [(1, with(&at_anchor, json!({"subpath": 1}))), (0, at_anchor.clone()), (0, with(&at_anchor, json!({"subpath": null})))] {
s.execute("path.split", &p).unwrap();
let after = path(&s, id).subpaths;
// The subpath split becomes two of two anchors each, in its place.
let kept = if si == 1 { &after[0] } else { &after[2] };
assert!(after.len() == 3 && after[si].anchors.len() == 2 && after[si + 1].anchors.len() == 2, "{p}: {after:?}");
assert_eq!(kept, &before[1 - si], "{p}");
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(path(&s, id).subpaths, before, "{p}: undo");
}
}
/// A subpath, anchor or segment of 2^32 + k fails, where k names one that exists, and the document
/// and the undo history stay as they were. A 32-bit build read the number as k.
#[test]
fn path_commands_refuse_a_subpath_anchor_or_segment_past_u32() {
let mut s = session();
let id = two_subpaths(&mut s);
let at_anchor = json!({"id": id.0, "anchor": 1});
let at_segment = json!({"id": id.0, "segment": 0, "t": 0.5});
let curvature_move = json!({"id": id.0, "op": "move", "anchor": 1, "x": 200, "y": 150});
let curvature_insert = json!({"id": id.0, "op": "insert", "segment": 0, "t": 0.5});
let convert = json!({"id": id.0, "anchor": 1, "to": "corner"});
let reshape = json!({"id": id.0, "segment": 0, "t": 0.5, "dx": 0, "dy": 20});
let handle = json!({"id": id.0, "anchor": 0, "which": "out", "x": 140, "y": 250});
let moved = json!({"id": id.0, "anchor": 0, "x": 140, "y": 250});
for (cmd, p, key) in [
("path.curvatureEdit", &curvature_move, "subpath"),
("path.curvatureEdit", &curvature_move, "anchor"),
("path.curvatureEdit", &curvature_insert, "segment"),
("path.removeAnchor", &at_anchor, "subpath"),
("path.removeAnchor", &at_anchor, "anchor"),
("path.convertAnchor", &convert, "subpath"),
("path.convertAnchor", &convert, "anchor"),
("path.reshapeSegment", &reshape, "subpath"),
("path.reshapeSegment", &reshape, "segment"),
("path.split", &at_anchor, "anchor"),
("path.split", &at_segment, "segment"),
("path.setHandle", &handle, "subpath"),
("path.setHandle", &handle, "anchor"),
("path.moveAnchor", &moved, "subpath"),
("path.moveAnchor", &moved, "anchor"),
("path.insertAnchor", &at_segment, "subpath"),
("path.insertAnchor", &at_segment, "segment"),
] {
let mut p = p.clone();
let k = if key == "subpath" { 1 } else { p[key].as_u64().unwrap() };
p[key] = json!((1u64 << 32) + k);
let before = s.doc().unwrap().doc.clone();
let undo = undo_steps(&s);
assert!(s.execute(cmd, &p).is_err(), "{cmd} {p} succeeded");
assert!(s.doc().unwrap().doc == before, "{cmd} {p} changed the document");
assert_eq!(undo_steps(&s), undo, "{cmd} {p} left an undo step");
}
}
#[test]
fn set_handle_refuses_a_subpath_that_is_not_a_whole_number() {
let mut s = session();
let id = two_subpaths(&mut s);
let p = json!({"id": id.0, "anchor": 0, "which": "out", "x": 140, "y": 250});
refuses_an_index_that_is_not_whole(&mut s, "path.setHandle", &p, "subpath");
edits_the_subpath_given(&mut s, "path.setHandle", &p, id);
}
#[test]
fn move_anchor_takes_its_handles_along_and_refuses_a_subpath_that_is_not_a_whole_number() {
let mut s = session();
let id = two_subpaths(&mut s);
let p = json!({"id": id.0, "anchor": 0, "x": 140, "y": 250});
refuses_an_index_that_is_not_whole(&mut s, "path.moveAnchor", &p, "subpath");
edits_the_subpath_given(&mut s, "path.moveAnchor", &p, id);
// The anchor lands on (x, y) and its handles keep their offsets from it.
s.execute("path.setHandle", &json!({"id": id.0, "anchor": 0, "which": "out", "x": 30, "y": 40})).unwrap();
let a = path(&s, id).subpaths[0].anchors[0];
s.execute("path.moveAnchor", &json!({"id": id.0, "anchor": 0, "x": a.p.x + 15.0, "y": a.p.y - 5.0})).unwrap();
let b = path(&s, id).subpaths[0].anchors[0];
assert_eq!(b.p, a.p + vectorcraft_geom::Vec2::new(15.0, -5.0));
assert_eq!(b.h_out - b.p, a.h_out - a.p);
assert_eq!(b.h_in - b.p, a.h_in - a.p);
assert!(s.execute("path.moveAnchor", &json!({"id": id.0, "anchor": 99, "x": 0, "y": 0})).is_err());
}
#[test]
fn insert_anchor_refuses_a_subpath_that_is_not_a_whole_number() {
let mut s = session();
let id = two_subpaths(&mut s);
let p = json!({"id": id.0, "segment": 0, "t": 0.5});
refuses_an_index_that_is_not_whole(&mut s, "path.insertAnchor", &p, "subpath");
edits_the_subpath_given(&mut s, "path.insertAnchor", &p, id);
}
/// `path.reshapeSegment` refuses a `t`, `dx` or `dy` given as text or as another value that is not
/// a number, instead of bending the segment by 0 or at its middle; `dy: 20` bends it, with a null
/// `t` read as the middle.
#[test]
fn reshape_segment_refuses_a_number_given_as_text() {
let mut s = session();
let id = curve(&mut s);
let p = json!({"id": id.0, "segment": 0, "t": 0.5, "dx": 0, "dy": 20});
for key in ["t", "dx", "dy"] {
refuses_a_number_given_as_text(&mut s, "path.reshapeSegment", &p, key);
}
let before = path(&s, id);
s.execute("path.reshapeSegment", &with(&p, json!({"t": null}))).unwrap();
assert!(path(&s, id) != before, "the segment bends");
}
/// `path.convertAnchor` refuses an `x` or `y` given as text, and an `x` without a `y` or a `y`
/// without an `x`, instead of converting the anchor without a handle position; both as numbers
/// place the out handle there.
#[test]
fn convert_anchor_refuses_a_handle_position_given_as_text_or_alone() {
let mut s = session();
let id = curve(&mut s);
let p = json!({"id": id.0, "anchor": 1, "to": "smooth", "x": 330, "y": 150});
for key in ["x", "y"] {
refuses_a_number_given_as_text(&mut s, "path.convertAnchor", &p, key);
}
for lone in [json!({"y": null}), json!({"x": null}), json!({"y": null, "to": "corner"})] {
refuses_with(&mut s, "path.convertAnchor", &with(&p, lone), "x and y must be given together");
}
s.execute("path.convertAnchor", &p).unwrap();
assert_eq!(path(&s, id).subpaths[0].anchors[1].h_out, Point::new(330.0, 150.0));
}
/// The Curvature tool's edits and Add Anchor Point refuse a `t`, `x` or `y` given as text or as
/// another value that is not a number, instead of inserting at the middle of the segment or leaving
/// the new anchor where it was inserted.
#[test]
fn curvature_edit_and_insert_anchor_refuse_a_number_given_as_text() {
let mut s = session();
let id = curve(&mut s);
let insert = json!({"id": id.0, "op": "insert", "segment": 0, "t": 0.25});
let moved = json!({"id": id.0, "op": "insert", "segment": 0, "t": 0.25, "x": 150, "y": 160});
refuses_a_number_given_as_text(&mut s, "path.curvatureEdit", &insert, "t");
for key in ["x", "y"] {
refuses_a_number_given_as_text(&mut s, "path.curvatureEdit", &moved, key);
refuses_a_number_given_as_text(&mut s, "path.curvatureEdit", &json!({"id": id.0, "op": "move", "anchor": 1, "x": 300, "y": 150}), key);
}
refuses_a_number_given_as_text(&mut s, "path.insertAnchor", &json!({"id": id.0, "segment": 0, "t": 0.25}), "t");
s.execute("path.curvatureEdit", &moved).unwrap();
assert_eq!(path(&s, id).subpaths[0].anchors[1].p, Point::new(150.0, 160.0));
s.execute("path.insertAnchor", &json!({"id": id.0, "segment": 0, "t": null})).unwrap();
assert_eq!(path(&s, id).subpaths[0].anchors.len(), 4, "a null t inserts at the middle");
}
/// Move Anchors, the Reshape tool's command and Close Path refuse a number or handle given as text
/// or as another value that is not a number, and change nothing; null is read as the key left out.
#[test]
fn move_anchors_reshape_and_close_refuse_a_number_given_as_text() {
let mut s = session();
let id = curve(&mut s);
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 1]]})).unwrap();
let nudge = json!({"dx": 10, "dy": 0});
for key in ["dx", "dy"] {
refuses_a_number_given_as_text(&mut s, "path.moveAnchors", &nudge, key);
}
let reshape = json!({"id": id.0, "x": 200, "y": 100, "dx": 0, "dy": 30, "tol": 3, "radius": 50});
for key in ["dx", "dy", "tol", "radius"] {
refuses_a_number_given_as_text(&mut s, "path.reshape", &reshape, key);
}
for h in [json!("200, 150"), json!([200]), json!([200, "150"]), json!({"x": 200, "y": 150})] {
refuses_with(&mut s, "path.close", &json!({"id": id.0, "in": h}), "`in` must be [x, y]");
}
let before = path(&s, id);
s.execute("path.moveAnchors", &json!({"dx": 10, "dy": null})).unwrap();
s.execute("path.reshape", &with(&reshape, json!({"radius": null}))).unwrap();
s.execute("path.close", &json!({"id": id.0, "in": null})).unwrap();
// The Reshape tool's grab adds an anchor between the two, so the moved anchor is the last.
let after = path(&s, id);
let moved = after.subpaths[0].anchors.last().map(|a| a.p.x);
assert!(after.subpaths[0].closed && moved == Some(before.subpaths[0].anchors[1].p.x + 10.0), "{after:?}");
}
/// Close Path, Set Handle, Move Anchors and the Pencil, Curvature, Reshape Segment and Blob Brush
/// commands refuse an on/off option given as text or as another value that is not true or false,
/// naming the key, and change nothing; true, false and null still work.
#[test]
fn path_commands_refuse_a_boolean_given_as_text() {
let mut s = session();
let id = curve(&mut s);
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 1]]})).unwrap();
let stroke = json!([[100, 300], [150, 340], [200, 300]]);
let calls = [
("path.close", json!({"id": id.0, "independent": "true"}), "independent"),
("path.setHandle", json!({"id": id.0, "anchor": 0, "x": 160, "y": 90, "independent": 1}), "independent"),
("path.moveAnchors", json!({"dx": 10, "patterns": "true"}), "patterns"),
("path.freehand", json!({"points": stroke, "closed": "true"}), "closed"),
("path.freehand", json!({"points": stroke, "keepSelected": "false"}), "keepSelected"),
("path.freehand", json!({"points": stroke, "fill": [true]}), "fill"),
("path.curvature", json!({"points": stroke, "closed": "true"}), "closed"),
("path.curvature", json!({"points": [{"x": 100, "y": 300, "corner": "true"}, [150, 340], [200, 300]]}), "corner"),
("path.curvatureEdit", json!({"id": id.0, "op": "move", "anchor": 1, "x": 300, "y": 150, "corner": "true"}), "corner"),
("path.reshapeSegment", json!({"id": id.0, "segment": 0, "dy": 20, "perpendicular": "true"}), "perpendicular"),
("path.blob", json!({"points": stroke, "keepSelected": "true"}), "keepSelected"),
("path.blob", json!({"points": stroke, "mergeOnlySelection": 1}), "mergeOnlySelection"),
("path.blob", json!({"points": stroke, "merge": "false"}), "merge"),
]
.map(|(cmd, p, key)| super::tests::not_a_switch(cmd, p, key));
let wrong = super::tests::not_refused(&mut s, &calls);
assert!(wrong.is_empty(), "not refused: {wrong:#?}");
s.execute("path.setHandle", &json!({"id": id.0, "anchor": 0, "x": 160, "y": 90, "independent": true})).unwrap();
s.execute("path.close", &json!({"id": id.0, "independent": null})).unwrap();
s.execute("path.freehand", &json!({"points": stroke, "closed": false, "keepSelected": null, "fill": true})).unwrap();
s.execute("path.blob", &json!({"points": stroke, "merge": false, "keepSelected": null, "mergeOnlySelection": false})).unwrap();
assert!(path(&s, id).subpaths[0].closed);
}
#[test]
fn path_commands_refuse_a_delta_or_point_of_1e9_pt_or_more() {
// `path.reshapeSegment` refuses a delta of 1e9 pt or longer, and `path.convertAnchor` and
// `path.freehand` refuse a point whose x or y is 1e9 pt or more in size, also for a path that is
// not selected: the document stays as it was, with no undo step. A delta just under that bound,
// at t 0.05 or 0.95, leaves every handle and the path's bounds finite.
let mut s = session();
let id = curve(&mut s);
s.execute("select.none", &json!({})).unwrap();
let finite = |s: &Session| {
paths(s).iter().all(|(_, pd)| {
let mut points = pd.subpaths.iter().flat_map(|sp| &sp.anchors).flat_map(|a| [a.p, a.h_in, a.h_out]);
points.all(|q| q.x.is_finite() && q.y.is_finite()) && pd.control_bounds().is_none_or(|b| b.width().is_finite() && b.height().is_finite())
})
};
let h = 1e308;
for (cmd, p) in [
("path.reshapeSegment", json!({"id": id.0, "segment": 0, "t": 0.95, "dx": h, "dy": 0})),
("path.reshapeSegment", json!({"id": id.0, "segment": 0, "t": 0.05, "dx": 0, "dy": -h})),
("path.reshapeSegment", json!({"id": id.0, "segment": 0, "t": 0.95, "dx": 0, "dy": h, "perpendicular": true})),
("path.reshapeSegment", json!({"id": id.0, "segment": 0, "t": 0.5, "dx": 1e9, "dy": 0})),
("path.convertAnchor", json!({"id": id.0, "anchor": 0, "to": "smooth", "x": h, "y": -h})),
("path.freehand", json!({"points": [[0, 0], [h, 0], [-h, h], [h, h]], "keepSelected": false})),
("path.freehand", json!({"points": [[0, 0], [h, 0], [-h, h]], "keepSelected": false, "extend": {"id": id.0, "end": "end"}})),
] {
let before = s.doc().unwrap().doc.clone();
let undo = s.doc().unwrap().history.undo.len();
assert!(s.execute(cmd, &p).is_err(), "{cmd} {p}");
assert!(s.doc().unwrap().doc == before && finite(&s), "{cmd} {p} changed the document");
assert_eq!(s.doc().unwrap().history.undo.len(), undo, "{cmd} left an undo step");
}
for (t, perpendicular) in [(0.05, false), (0.95, false), (0.05, true), (0.95, true)] {
let p = json!({"id": id.0, "segment": 0, "t": t, "dx": 0, "dy": 9.9e8, "perpendicular": perpendicular});
s.execute("path.reshapeSegment", &p).unwrap();
assert!(finite(&s), "{p}: {:?}", path(&s, id));
}
}
#[test]
fn a_selected_curve_whose_handles_are_near_1e308_is_refused() {
// The canvas check measures a selected curve whose handles are near ±1e308 by its control
// points, so `path.create` refuses such a curve, given as anchors or as path data: the document
// stays as it was, with no undo step.
let mut s = session();
curve(&mut s);
let h = 1e308;
for p in [
json!({"anchors": [{"x": 100, "y": 100, "out": [150, h]}, {"x": 300, "y": 100, "in": [250, h]}]}),
json!({"anchors": [{"x": 100, "y": 100, "out": [150, -h]}, {"x": 300, "y": 100, "in": [250, h]}]}),
json!({"anchors": [{"x": 100, "y": 100, "out": [1.7e308, 100]}, {"x": 300, "y": 100}]}),
json!({"d": "M100 100 C150 1e308 250 1e308 300 100"}),
] {
let before = s.doc().unwrap().doc.clone();
let undo = s.doc().unwrap().history.undo.len();
let e = s.execute("path.create", &p).unwrap_err().to_string();
assert!(e.contains("exceed the canvas"), "{p}: {e}");
assert!(s.doc().unwrap().doc == before, "{p} changed the document");
assert_eq!(s.doc().unwrap().history.undo.len(), undo, "{p} left an undo step");
}
// A curve whose handles stay on the canvas is kept.
let p = json!({"anchors": [{"x": 100, "y": 100, "out": [150, 3e6]}, {"x": 300, "y": 100, "in": [250, 3e6]}]});
let id = NodeId(s.execute("path.create", &p).unwrap()["id"].as_u64().unwrap());
assert!(path(&s, id).bounds().is_some_and(|b| b.y1 > 2e6));
}
/// A curve from (100, 100) to (300, 100) whose first anchor has an out handle at (150, 100).
fn curve(s: &mut Session) -> NodeId {
let anchors = json!([{"x": 100, "y": 100, "out": [150, 100]}, {"x": 300, "y": 100, "in": [250, 100]}]);
NodeId(s.execute("path.create", &json!({"anchors": anchors})).unwrap()["id"].as_u64().unwrap())
}
/// Drag the out handle of path `id`'s first anchor with `tool` to `to`, holding `mods`. Direct
/// Selection clicks the anchor first, so its handles show.
fn drag_handle(s: &mut Session, tool: &str, id: NodeId, to: (f64, f64), mods: Mods, v: ViewInfo) {
let from = path(s, id).subpaths[0].anchors[0].h_out;
s.execute("select.set", &json!({"ids": [id.0]})).unwrap();
s.select_tool(tool, v).unwrap();
if tool == "directSelection" {
s.execute("select.none", &json!({})).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Down, 100.0, 100.0), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Up, 100.0, 100.0), v).unwrap();
}
s.pointer(&PointerEvent::new(PointerKind::Down, from.x, from.y).with_mods(mods), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Drag, to.0, to.1).with_mods(mods), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Up, to.0, to.1).with_mods(mods), v).unwrap();
assert!(!s.in_interaction());
}
/// The out handle of path `id`'s first anchor.
fn out_handle(s: &Session, id: NodeId) -> Point {
path(s, id).subpaths[0].anchors[0].h_out
}
#[test]
fn shift_keeps_a_dragged_handle_at_45_degree_steps() {
// #322.
let shift = Mods { shift: true, ..Mods::default() };
for tool in ["directSelection", "anchorPoint"] {
let mut s = session();
let id = curve(&mut s);
drag_handle(&mut s, tool, id, (190.0, 130.0), shift, view());
let h = out_handle(&s, id);
assert!(near(h, Point::new(100.0 + 90.0f64.hypot(30.0), 100.0)), "{tool}: {h:?}");
drag_handle(&mut s, tool, id, (160.0, 155.0), shift, view());
let h = out_handle(&s, id);
assert!((h.x - h.y).abs() < 1e-6 && h.x > 100.0, "{tool}: 45°: {h:?}");
// Without Shift the handle goes where it is dragged.
drag_handle(&mut s, tool, id, (190.0, 130.0), Mods::default(), view());
assert_eq!(out_handle(&s, id), Point::new(190.0, 130.0), "{tool}");
}
}
#[test]
fn a_dragged_handle_snaps_to_smart_guides() {
// #322: in line with the other anchor, with smart guides on.
for tool in ["directSelection", "anchorPoint"] {
let mut s = session();
let id = curve(&mut s);
drag_handle(&mut s, tool, id, (298.0, 160.0), Mods::default(), ViewInfo::default());
assert_eq!(out_handle(&s, id), Point::new(300.0, 160.0), "{tool}");
drag_handle(&mut s, tool, id, (298.0, 170.0), Mods::default(), view());
assert_eq!(out_handle(&s, id), Point::new(298.0, 170.0), "{tool}: smart guides off");
}
}
#[test]
fn shift_drag_keeps_a_smooth_anchor_smooth_and_alt_breaks_it() {
// #322: the opposite handle of a smooth anchor turns with the constrained one; Alt still
// moves the dragged handle alone.
let shift = Mods { shift: true, ..Mods::default() };
let shift_alt = Mods { shift: true, alt: true, ..Mods::default() };
for (mods, opposite_follows) in [(shift, true), (shift_alt, false)] {
let mut s = session();
let anchors = json!([{"x": 100, "y": 200}, {"x": 200, "y": 100, "in": [150, 100], "out": [250, 100]}, {"x": 300, "y": 200}]);
let id = NodeId(s.execute("path.create", &json!({"anchors": anchors})).unwrap()["id"].as_u64().unwrap());
s.select_tool("directSelection", view()).unwrap();
for (kind, x, y, m) in [
(PointerKind::Down, 200.0, 100.0, Mods::default()),
(PointerKind::Up, 200.0, 100.0, Mods::default()),
(PointerKind::Down, 250.0, 100.0, mods),
(PointerKind::Drag, 275.0, 165.0, mods),
(PointerKind::Up, 275.0, 165.0, mods),
] {
s.pointer(&PointerEvent::new(kind, x, y).with_mods(m), view()).unwrap();
}
let a = path(&s, id).subpaths[0].anchors[1];
let (o, i) = (a.h_out - a.p, a.h_in - a.p);
assert!((o.x - o.y).abs() < 1e-6 && o.x > 0.0, "{mods:?}: 45°: {o:?}");
if opposite_follows {
assert!(near(a.h_in, a.p - o.normalize() * 50.0), "{mods:?}: {i:?}");
} else {
assert_eq!(a.h_in, Point::new(150.0, 100.0), "{mods:?}");
}
}
}
#[test]
fn removing_an_anchor_refits_a_split_curve_and_undo_restores_it() {
let mut s = session();
let made = s
.execute(
"path.create",
&json!({"anchors": [
{"x": 0, "y": 0, "out": [30, 80]},
{"x": 100, "y": 0, "in": [70, 80]}
]}),
)
.unwrap();
let id = NodeId(made["id"].as_u64().unwrap());
let before = path(&s, id);
let inserted = s.execute("path.insertAnchor", &json!({"id": id.0, "segment": 0, "t": 0.4})).unwrap();
let ai = inserted["anchor"].as_u64().unwrap();
s.execute("path.removeAnchor", &json!({"id": id.0, "anchor": ai})).unwrap();
let after = path(&s, id);
assert_eq!(after.subpaths[0].anchors.len(), 2);
let (got, orig) = (&after.subpaths[0].anchors, &before.subpaths[0].anchors);
assert!(got[0].h_out.distance(orig[0].h_out) < 0.5, "{:?}", got[0].h_out);
assert!(got[1].h_in.distance(orig[1].h_in) < 0.5, "{:?}", got[1].h_in);
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(path(&s, id).subpaths[0].anchors.len(), 3);
}
#[test]
fn remove_anchor_points_keeps_the_paths_closed() {
// Object › Path › Remove Anchor Points, unlike the Delete key: a rectangle loses a corner and
// stays closed, a straight-sided triangle; a curve keeps its shape round a removed point.
let mut s = session();
let r = rect(&mut s, 0.0, 0.0, 100.0, 80.0);
let made = s.execute("path.create", &json!({"anchors": [{"x": 300, "y": 0, "out": [330, 80]}, {"x": 400, "y": 0, "in": [370, 80]}]})).unwrap();
let c = NodeId(made["id"].as_u64().unwrap());
let before = path(&s, c).subpaths[0].segment(0);
s.execute("path.insertAnchor", &json!({"id": c.0, "segment": 0, "t": 0.5})).unwrap();
s.execute("select.anchors", &json!({"id": r.0, "anchors": [[0, 0]]})).unwrap();
s.execute("select.anchors", &json!({"id": c.0, "anchors": [[0, 1]], "mode": "add"})).unwrap();
assert_eq!(s.execute("path.removeAnchors", &json!({})).unwrap()["removedObjects"], 0);
let sp = &path(&s, r).subpaths[0];
assert!(sp.closed && sp.anchors.len() == 3, "{sp:?}");
assert!(!sp.anchors.iter().any(|a| a.has_in() || a.has_out()), "straight sides stay straight: {sp:?}");
let after = path(&s, c).subpaths[0].segment(0);
assert_eq!(path(&s, c).subpaths[0].anchors.len(), 2);
assert!(after.p1.distance(before.p1) < 0.5 && after.p2.distance(before.p2) < 0.5, "{after:?}");
assert_eq!(s.doc().unwrap().history.undo.last().unwrap().label, "Remove Anchor Points");
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(path(&s, r).subpaths[0].anchors.len(), 4);
assert_eq!(path(&s, c).subpaths[0].anchors.len(), 3);
let spec = find_command("path.removeAnchors").unwrap();
assert_eq!(spec.menu, &["Object", "Path"][..]);
}
fn selected_anchors(s: &Session, id: NodeId) -> Vec<(usize, usize)> {
s.doc().unwrap().selection.anchors.get(&id).map(|set| set.iter().copied().collect()).unwrap_or_default()
}
fn anchor_points(s: &Session, id: NodeId) -> Vec<Point> {
path(s, id).subpaths.iter().flat_map(|sp| sp.anchors.iter().map(|a| a.p)).collect()
}
#[test]
fn remove_anchor_points_selects_the_next_anchor_so_it_can_go_on_along_the_path() {
// #2241: after Remove Anchor Points the next anchor along is selected, so running it again
// removes that one without picking it first. The path stays selected the whole way.
let mut s = session();
let anchors: Vec<_> = (0..5).map(|i| json!({"x": 100 * i, "y": 100 * (i % 2)})).collect();
let id = NodeId(s.execute("path.create", &json!({"anchors": anchors})).unwrap()["id"].as_u64().unwrap());
let original = anchor_points(&s, id);
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 1]]})).unwrap();
for (remaining, next) in [(4, 2), (3, 3), (2, 4)] {
assert_eq!(s.execute("path.removeAnchors", &json!({})).unwrap()["removedObjects"], 0);
assert_eq!(path(&s, id).subpaths[0].anchors.len(), remaining);
assert_eq!(selected_anchors(&s, id), [(0, 1)], "anchor {next} of the original is selected");
assert_eq!(path(&s, id).subpaths[0].anchors[1].p, original[next]);
assert_eq!(s.doc().unwrap().selection.objects, [id]);
}
// One anchor can't make a path: the last run removes it, and nothing is left selected.
assert_eq!(s.execute("path.removeAnchors", &json!({})).unwrap()["removedObjects"], 1);
assert!(s.doc().unwrap().doc.node(id).is_none());
assert!(s.doc().unwrap().selection.is_empty());
}
#[test]
fn remove_anchor_points_selects_the_anchor_before_an_open_end_and_wraps_a_closed_path() {
// An open path's last anchor has nothing after it: the one before is selected.
let mut s = session();
let anchors: Vec<_> = (0..4).map(|i| json!({"x": 100 * i, "y": 0})).collect();
let open = NodeId(s.execute("path.create", &json!({"anchors": anchors})).unwrap()["id"].as_u64().unwrap());
let original = anchor_points(&s, open);
s.execute("select.anchors", &json!({"id": open.0, "anchors": [[0, 3]]})).unwrap();
s.execute("path.removeAnchors", &json!({})).unwrap();
assert_eq!(selected_anchors(&s, open), [(0, 2)]);
assert_eq!(anchor_points(&s, open)[2], original[2]);
// A closed path goes round: removing its last anchor selects its first.
let r = rect(&mut s, 0.0, 200.0, 100.0, 80.0);
let corners = anchor_points(&s, r);
s.execute("select.anchors", &json!({"id": r.0, "anchors": [[0, 3]]})).unwrap();
s.execute("path.removeAnchors", &json!({})).unwrap();
assert_eq!(selected_anchors(&s, r), [(0, 0)]);
assert_eq!(anchor_points(&s, r)[0], corners[0]);
}
#[test]
fn remove_anchor_points_selects_one_next_anchor_per_subpath_and_per_path() {
// Several anchors of one subpath: the anchor after the last of them. Each path and each
// subpath gets its own, at its index once a subpath left too short to keep is gone.
let mut s = session();
let made = s.execute("path.create", &json!({"d": "M0 0 L50 0 M0 100 L50 100 L100 100 L150 100 L200 100 L250 100"})).unwrap();
let id = NodeId(made["id"].as_u64().unwrap());
let original = anchor_points(&s, id);
let anchors: Vec<_> = (0..4).map(|i| json!({"x": 100 * i, "y": 400})).collect();
let other = NodeId(s.execute("path.create", &json!({"anchors": anchors})).unwrap()["id"].as_u64().unwrap());
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 0], [1, 1], [1, 2]]})).unwrap();
s.execute("select.anchors", &json!({"id": other.0, "anchors": [[0, 0]], "mode": "add"})).unwrap();
assert_eq!(s.execute("path.removeAnchors", &json!({})).unwrap()["removedObjects"], 0);
let sp = &path(&s, id).subpaths;
assert_eq!(sp.len(), 1, "the first subpath, down to one anchor, is gone");
assert_eq!(selected_anchors(&s, id), [(0, 1)]);
assert_eq!(sp[0].anchors[1].p, original[5], "the anchor after the two removed ones");
assert_eq!(selected_anchors(&s, other), [(0, 0)]);
// One undo step brings back the anchors and the selection they were removed from.
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(anchor_points(&s, id), original);
assert_eq!(selected_anchors(&s, id), [(0, 0), (1, 1), (1, 2)]);
assert_eq!(selected_anchors(&s, other), [(0, 0)]);
}
#[test]
fn remove_anchor_point_tool_and_delete_still_select_the_remainder_whole() {
// Only Remove Anchor Points moves the selection on. The Delete Anchor Point tool leaves the
// path selected whole, and so does the Delete key, so that a second Delete removes the rest.
for command in ["path.removeAnchor", "path.deleteAnchors"] {
let mut s = session();
let anchors: Vec<_> = (0..4).map(|i| json!({"x": 100 * i, "y": 0})).collect();
let id = NodeId(s.execute("path.create", &json!({"anchors": anchors})).unwrap()["id"].as_u64().unwrap());
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 1]]})).unwrap();
let params = if command == "path.removeAnchor" { json!({"id": id.0, "subpath": 0, "anchor": 1}) } else { json!({}) };
s.execute(command, &params).unwrap();
assert!(selected_anchors(&s, id).is_empty(), "{command}");
assert_eq!(s.doc().unwrap().selection.objects, [id], "{command}");
}
}
fn undo_steps(s: &Session) -> usize {
s.doc().unwrap().history.undo.len()
}
#[test]
fn convert_anchors_turns_the_selected_anchors_corner_or_smooth() {
// The Control bar's convert buttons: one undo step each, other anchors left alone.
let mut s = session();
let made = s.execute("path.create", &json!({"anchors": [{"x": 100, "y": 200}, {"x": 200, "y": 100}, {"x": 300, "y": 200}]})).unwrap();
let id = NodeId(made["id"].as_u64().unwrap());
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 1]]})).unwrap();
let undo = undo_steps(&s);
s.execute("path.convertAnchors", &json!({"to": "smooth"})).unwrap();
let a = path(&s, id).subpaths[0].anchors.clone();
assert_eq!(undo_steps(&s), undo + 1);
assert_eq!(a[1].kind, vectorcraft_geom::AnchorKind::Smooth);
let r = 100.0 * 2f64.sqrt() / 3.0;
assert!(near(a[1].h_in, Point::new(200.0 - r, 100.0)) && near(a[1].h_out, Point::new(200.0 + r, 100.0)), "{:?}", a[1]);
assert!(!a[0].has_out() && !a[2].has_in(), "the neighbours keep theirs");
// Smooth again keeps the handles; corner retracts them.
s.execute("path.setHandle", &json!({"id": id.0, "anchor": 1, "which": "out", "x": 260, "y": 100})).unwrap();
let h = path(&s, id).subpaths[0].anchors[1];
s.execute("path.convertAnchors", &json!({"to": "smooth"})).unwrap();
assert_eq!(path(&s, id).subpaths[0].anchors[1], h);
s.execute("path.convertAnchors", &json!({"to": "corner"})).unwrap();
let a = path(&s, id).subpaths[0].anchors[1];
assert!(!a.has_in() && !a.has_out(), "{a:?}");
// Anchors that are gone (a stale selection) are skipped; a bad `to` is refused.
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 99], [7, 0]]})).unwrap();
s.execute("path.convertAnchors", &json!({"to": "smooth"})).unwrap();
let undo = undo_steps(&s);
assert!(s.execute("path.convertAnchors", &json!({"to": "round"})).is_err());
assert_eq!(undo_steps(&s), undo);
}
#[test]
fn cut_at_anchors_splits_paths_and_leaves_one_end_selected() {
// Cut Path at Selected Anchor Points: an open path becomes one path per piece, and one anchor
// of each cut stays selected, so dragging it pulls the path apart there.
let mut s = session();
let anchors = json!([{"x": 100, "y": 100}, {"x": 200, "y": 100, "in": [170, 80], "out": [230, 120]}, {"x": 300, "y": 100}, {"x": 400, "y": 100}]);
let id = NodeId(s.execute("path.create", &json!({"anchors": anchors})).unwrap()["id"].as_u64().unwrap());
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 1], [0, 2]]})).unwrap();
let undo = undo_steps(&s);
let made = s.execute("path.cutAtAnchors", &json!({})).unwrap();
let ids: Vec<NodeId> = made["ids"].as_array().unwrap().iter().map(|v| NodeId(v.as_u64().unwrap())).collect();
assert_eq!(undo_steps(&s), undo + 1);
assert_eq!((ids.len(), ids[0]), (3, id));
let pieces: Vec<Vec<Point>> = ids.iter().map(|i| path(&s, *i).subpaths[0].anchors.iter().map(|a| a.p).collect()).collect();
let p = |x: f64| Point::new(x, 100.0);
assert_eq!(pieces, vec![vec![p(100.0), p(200.0)], vec![p(200.0), p(300.0)], vec![p(300.0), p(400.0)]]);
// The curve keeps its shape: each end keeps the handle on its own side only.
let (l, r) = (path(&s, ids[0]).subpaths[0].anchors[1], path(&s, ids[1]).subpaths[0].anchors[0]);
assert!(l.h_in == Point::new(170.0, 80.0) && !l.has_out() && r.h_out == Point::new(230.0, 120.0) && !r.has_in(), "{l:?} {r:?}");
let sel = s.doc().unwrap().selection.clone();
assert_eq!(sel.objects, vec![ids[1], ids[2]]);
assert!(sel.anchors.values().all(|a| a.iter().eq([&(0, 0)])), "{sel:?}");
s.execute("path.moveAnchors", &json!({"dx": 0, "dy": 50})).unwrap();
assert_eq!(path(&s, ids[0]).subpaths[0].anchors[1].p, p(200.0));
assert_eq!(path(&s, ids[1]).subpaths[0].anchors[0].p, Point::new(200.0, 150.0));
s.execute("edit.undo", &json!({})).unwrap();
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(paths(&s).len(), 1);
// A closed path opens at the cut, its ends on top of each other.
let r = rect(&mut s, 500.0, 100.0, 100.0, 100.0);
s.execute("select.anchors", &json!({"id": r.0, "anchors": [[0, 2]]})).unwrap();
s.execute("path.cutAtAnchors", &json!({})).unwrap();
let sp = &path(&s, r).subpaths[0];
assert!(!sp.closed && sp.anchors.len() == 5 && sp.anchors[0].p == sp.anchors[4].p, "{sp:?}");
assert_eq!(s.doc().unwrap().selection.anchors[&r].iter().collect::<Vec<_>>(), [&(0, 0)]);
// Only the end points of an open path selected: nothing to cut.
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 0], [0, 3]]})).unwrap();
let undo = undo_steps(&s);
assert!(s.execute("path.cutAtAnchors", &json!({})).is_err());
assert_eq!(undo_steps(&s), undo);
}
#[test]
fn direct_segment_delete_keeps_the_other_rectangle_edges_and_one_undo() {
for initially_selected in [false, true] {
let mut s = session();
let id = rect(&mut s, 100.0, 100.0, 200.0, 150.0);
if !initially_selected {
s.execute("select.none", &json!({})).unwrap();
}
let before = s.doc().unwrap().doc.clone();
let original = path(&s, id).subpaths[0].clone();
let undo = undo_steps(&s);
drag(&mut s, "directSelection", &[(200.0, 100.0)], Mods::default());
assert_eq!(s.doc().unwrap().doc, before, "a click never edits the document");
assert_eq!(undo_steps(&s), undo);
assert_eq!(s.doc().unwrap().selection.segments[&id], [(0, 0)].into());
s.execute("edit.clear", &json!({})).unwrap();
let after = s.doc().unwrap().doc.clone();
let remainder = path(&s, id).subpaths[0].clone();
assert!(!remainder.closed);
assert_eq!(remainder.anchors.len(), 4, "the endpoints and neighboring edges survive");
for i in 0..3 {
assert_eq!(remainder.segment(i), original.segment(i + 1));
}
assert_eq!(undo_steps(&s), undo + 1);
assert_eq!(s.doc().unwrap().selection.objects, vec![id]);
assert!(s.doc().unwrap().selection.anchors.is_empty() && s.doc().unwrap().selection.segments.is_empty());
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(s.doc().unwrap().doc, before);
assert_eq!(s.doc().unwrap().selection.segments[&id], [(0, 0)].into());
s.execute("edit.redo", &json!({})).unwrap();
assert_eq!(s.doc().unwrap().doc, after);
s.execute("edit.clear", &json!({})).unwrap();
assert!(s.doc().unwrap().doc.node(id).is_none(), "a second Delete removes the rest");
}
}
/// A segment pick's endpoints are hollow: Shift-clicking or Shift-marqueeing one selects that
/// anchor, rather than toggling it off and leaving the other endpoint selected.
#[test]
fn selecting_an_anchor_after_a_segment_pick_starts_from_no_anchors() {
let mut s = session();
let id = rect(&mut s, 100.0, 100.0, 200.0, 150.0);
let segment = json!({"id": id.0, "segments": [[0, 0]]});
s.execute("select.segments", &segment).unwrap();
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 0]], "mode": "toggle"})).unwrap();
let sel = &s.doc().unwrap().selection;
assert_eq!(sel.partial(id), Some(&[(0, 0)].into()));
assert!(sel.segments.is_empty());
s.execute("select.segments", &segment).unwrap();
s.execute("select.anchorsMany", &json!({"items": [{"id": id.0, "anchors": [[0, 1]]}], "mode": "add"})).unwrap();
let sel = &s.doc().unwrap().selection;
assert_eq!(sel.partial(id), Some(&[(0, 1)].into()));
assert!(sel.segments.is_empty());
}
#[test]
fn segment_delete_preserves_curves_appearance_and_unrelated_contours() {
let data = "M100 100C110 70 150 130 170 100C180 75 230 125 250 100C270 140 280 80 310 100C320 120 140 140 100 100Z M400 100L500 100L500 200Z";
for closed in [false, true] {
for cuts in [vec![0], vec![1], vec![3], vec![0, 2], vec![0, 3], vec![0, 1, 2, 3]] {
let mut s = session();
let id = NodeId(s.execute("path.create", &json!({"d": data})).unwrap()["id"].as_u64().unwrap());
s.edit("Fixture", |d, _| {
if let NodeKind::Path { path, .. } = &mut d.node_mut(id).unwrap().kind {
path.subpaths[0].closed = closed;
}
Ok(())
})
.unwrap();
s.execute("paint.setStroke", &json!({"color":"#123456"})).unwrap();
let original = path(&s, id);
let cuts: Vec<_> = cuts.into_iter().filter(|&i| i < original.subpaths[0].segment_count()).collect();
if cuts.is_empty() {
continue;
}
let refs: Vec<_> = cuts.iter().map(|i| json!([0, i])).collect();
s.execute("select.segments", &json!({"id":id.0,"segments":refs})).unwrap();
let before = s.doc().unwrap().doc.clone();
s.execute("edit.clear", &json!({})).unwrap();
let result = path(&s, id);
assert_eq!(result.subpaths.last().unwrap(), original.subpaths.last().unwrap(), "the other contour stays exact");
let expected: Vec<_> =
(0..original.subpaths[0].segment_count()).filter(|i| !cuts.contains(i)).map(|i| original.subpaths[0].segment(i)).collect();
let actual: Vec<_> =
result.subpaths.iter().take(result.subpaths.len() - 1).flat_map(|sp| (0..sp.segment_count()).map(|i| sp.segment(i))).collect();
assert_eq!(actual.len(), expected.len());
assert!(expected.iter().all(|curve| actual.contains(curve)), "{closed} {cuts:?}");
for sp in result.subpaths.iter().take(result.subpaths.len() - 1) {
assert!(
!sp.anchors.first().unwrap().has_in() && !sp.anchors.last().unwrap().has_out(),
"deleted-edge handles do not remain at open endpoints"
);
}
let mut restored = s.doc().unwrap().doc.clone();
std::sync::Arc::make_mut(&mut restored).node_mut(id).unwrap().kind = before.node(id).unwrap().kind.clone();
assert_eq!(restored, before, "only the edited path kind changes");
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(s.doc().unwrap().doc, before);
}
}
}
#[test]
fn segment_picks_and_deliberate_anchor_picks_delete_different_components() {
let mut s = session();
let id = rect(&mut s, 100.0, 100.0, 200.0, 150.0);
s.execute("select.segments", &json!({"id":id.0,"segments":[[0,0]]})).unwrap();
let before = s.doc().unwrap().doc.clone();
let selection = s.doc().unwrap().selection.clone();
for refs in [json!([[0, 99]]), json!([[99, 0]]), json!([[-1, 0]]), json!([[0, 0.5]])] {
assert!(s.execute("select.segments", &json!({"id":id.0,"segments":refs})).is_err());
assert_eq!(s.doc().unwrap().selection, selection);
assert_eq!(s.doc().unwrap().doc, before);
}
s.execute("select.anchors", &json!({"id":id.0,"anchors":[[0,0],[0,1]]})).unwrap();
assert!(s.doc().unwrap().selection.segments.is_empty());
s.execute("edit.clear", &json!({})).unwrap();
assert_eq!(path(&s, id).anchor_count(), 2, "deliberate anchor Delete keeps its existing behavior");
s.execute("edit.undo", &json!({})).unwrap();
s.execute("select.segments", &json!({"id":id.0,"segments":[[0,0]]})).unwrap();
drag(&mut s, "directSelection", &[(100.0, 100.0)], Mods::default());
assert!(s.doc().unwrap().selection.segments.is_empty());
assert_eq!(s.doc().unwrap().selection.anchors[&id], [(0, 0)].into(), "clicking an endpoint picks the anchor itself");
}
#[test]
fn pen_with_alt_moves_one_handle_and_converts_anchors() {
// Discord feedback: Alt held with the Pen moves a direction handle on its own (and works as
// the Anchor Point tool on a selected path's anchors), while a path is being drawn too.
let alt = Mods { alt: true, ..Mods::default() };
let v = view();
let mut s = session();
let anchors = json!([{"x": 100, "y": 200}, {"x": 200, "y": 100, "in": [150, 100], "out": [250, 100]}, {"x": 300, "y": 200}]);
let id = NodeId(s.execute("path.create", &json!({"anchors": anchors})).unwrap()["id"].as_u64().unwrap());
s.select_tool("pen", v).unwrap();
// Alt-drag the out handle: it moves alone, the in handle stays.
assert_eq!(gesture(&mut s, &[(250.0, 100.0), (260.0, 130.0), (275.0, 165.0)], alt), 1);
assert!(!s.in_interaction());
let a = path(&s, id).subpaths[0].anchors[1];
assert_eq!((a.h_in, a.h_out), (Point::new(150.0, 100.0), Point::new(275.0, 165.0)));
assert_eq!(paths(&s).len(), 1, "no new path or anchor");
// Alt-click the anchor: a corner. Alt-drag it: new symmetric handles.
assert_eq!(gesture(&mut s, &[(200.0, 100.0)], alt), 1);
let a = path(&s, id).subpaths[0].anchors[1];
assert!(!a.has_in() && !a.has_out(), "{a:?}");
gesture(&mut s, &[(200.0, 100.0), (220.0, 100.0), (240.0, 110.0)], alt);
let a = path(&s, id).subpaths[0].anchors[1];
assert_eq!((a.h_in, a.h_out), (Point::new(160.0, 90.0), Point::new(240.0, 110.0)));
assert_eq!(path(&s, id).subpaths[0].anchors.len(), 3);
// Drawing: place a smooth point, then Alt-drag its outgoing handle; the next click goes on
// drawing the same path.
s.execute("select.none", &json!({})).unwrap();
gesture(&mut s, &[(100.0, 400.0)], Mods::default());
gesture(&mut s, &[(200.0, 400.0), (250.0, 400.0)], Mods::default());
let new = *s.doc().unwrap().selection.objects.first().unwrap();
gesture(&mut s, &[(250.0, 400.0), (230.0, 350.0)], alt);
let a = path(&s, new).subpaths[0].anchors[1];
assert_eq!((a.h_in, a.h_out), (Point::new(150.0, 400.0), Point::new(230.0, 350.0)));
gesture(&mut s, &[(300.0, 450.0)], Mods::default());
assert_eq!(path(&s, new).subpaths[0].anchors.len(), 3);
assert_eq!(paths(&s).len(), 2);
}
/// The anchor's handles point opposite ways.
fn smooth(a: vectorcraft_geom::Anchor) -> bool {
let (i, o) = (a.h_in - a.p, a.h_out - a.p);
(i.x * o.y - i.y * o.x).abs() < 1e-6 && i.x * o.x + i.y * o.y < 0.0
}
#[test]
fn pen_with_cmd_borrows_direct_selection_and_goes_on_drawing() {
// #494: Cmd (Ctrl) held with the Pen drags with the selection tool used last (Direct Selection
// until one is chosen): handles, segments and anchors of the path being drawn; released, the
// Pen goes on drawing that path. Through pointer events, so agents reach it too.
let (none, cmd) = (Mods::default(), Mods { cmd: true, ..Mods::default() });
let v = view();
let mut s = session();
s.select_tool("pen", v).unwrap();
gesture(&mut s, &[(100.0, 300.0)], none);
gesture(&mut s, &[(200.0, 300.0), (250.0, 300.0)], none);
let id = s.doc().unwrap().selection.objects[0];
assert_eq!(s.cursor(Point::new(250.0, 300.0), none, v), vectorcraft_tools::Cursor::PenDrawing);
assert_eq!(s.cursor(Point::new(250.0, 300.0), cmd, v), vectorcraft_tools::Cursor::ArrowHollow, "Direct Selection's");
// The new anchor's outgoing handle: it moves, its incoming one turning with it.
s.pointer(&PointerEvent::new(PointerKind::Down, 250.0, 300.0).with_mods(cmd), v).unwrap();
assert_eq!(s.tool_id(), "directSelection");
s.pointer(&PointerEvent::new(PointerKind::Drag, 250.0, 260.0).with_mods(cmd), v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Up, 250.0, 260.0).with_mods(cmd), v).unwrap();
assert_eq!(s.tool_id(), "pen");
let a = path(&s, id).subpaths[0].anchors[1];
assert!(a.h_out == Point::new(250.0, 260.0) && smooth(a), "{a:?}");
// The segment between the two anchors bends, the smooth anchor staying smooth.
let before = path(&s, id).subpaths[0].anchors[1].h_in;
gesture(&mut s, &[(120.0, 300.0), (120.0, 270.0)], cmd);
let a = path(&s, id).subpaths[0].anchors[1];
assert!(a.h_in != before && smooth(a), "{a:?}");
assert_eq!(s.tool_id(), "pen");
// A plain click goes on drawing the same path.
gesture(&mut s, &[(300.0, 350.0)], none);
assert_eq!((paths(&s).len(), path(&s, id).subpaths[0].anchors.len()), (1, 3));
// A Cmd-click away from the art deselects: the path is done, the next click starts another.
gesture(&mut s, &[(600.0, 100.0)], cmd);
gesture(&mut s, &[(400.0, 500.0)], none);
assert_eq!(paths(&s).len(), 2);
assert_eq!(path(&s, id).subpaths[0].anchors.len(), 3);
// With the Selection tool chosen last, Cmd lends it.
s.select_tool("selection", v).unwrap();
s.select_tool("pen", v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Down, 600.0, 100.0).with_mods(cmd), v).unwrap();
assert_eq!(s.tool_id(), "selection");
s.pointer(&PointerEvent::new(PointerKind::Up, 600.0, 100.0).with_mods(cmd), v).unwrap();
assert_eq!(s.tool_id(), "pen");
// Choosing a tool mid-gesture keeps it: the Pen doesn't come back over it.
s.pointer(&PointerEvent::new(PointerKind::Down, 600.0, 100.0).with_mods(cmd), v).unwrap();
s.select_tool("rectangle", v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Up, 600.0, 100.0), v).unwrap();
assert_eq!(s.tool_id(), "rectangle");
}
#[test]
fn cmd_alt_lends_group_selection_while_direct_selection_is_active() {
let (cmd, cmd_alt) = (Mods { cmd: true, ..Mods::default() }, Mods { cmd: true, alt: true, ..Mods::default() });
let v = view();
let mut s = session();
// Cmd+Alt while the Pen borrows Direct Selection keeps Direct Selection (Alt is copy/subtract).
s.select_tool("directSelection", v).unwrap();
s.select_tool("pen", v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Down, 50.0, 50.0).with_mods(cmd_alt), v).unwrap();
assert_eq!(s.tool_id(), "directSelection");
s.pointer(&PointerEvent::new(PointerKind::Up, 50.0, 50.0).with_mods(cmd_alt), v).unwrap();
assert_eq!(s.tool_id(), "pen");
// Cmd alone still lends Direct Selection.
s.pointer(&PointerEvent::new(PointerKind::Down, 60.0, 60.0).with_mods(cmd), v).unwrap();
assert_eq!(s.tool_id(), "directSelection");
s.pointer(&PointerEvent::new(PointerKind::Up, 60.0, 60.0).with_mods(cmd), v).unwrap();
// While Direct Selection is active, Cmd+Alt lends Group Selection for the gesture.
s.select_tool("directSelection", v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Down, 70.0, 70.0).with_mods(cmd_alt), v).unwrap();
assert_eq!(s.tool_id(), "groupSelection");
s.pointer(&PointerEvent::new(PointerKind::Up, 70.0, 70.0).with_mods(cmd_alt), v).unwrap();
assert_eq!(s.tool_id(), "directSelection");
// Selection last: Cmd+Alt still lends Selection, not Group Selection.
s.select_tool("selection", v).unwrap();
s.select_tool("pen", v).unwrap();
s.pointer(&PointerEvent::new(PointerKind::Down, 80.0, 80.0).with_mods(cmd_alt), v).unwrap();
assert_eq!(s.tool_id(), "selection");
s.pointer(&PointerEvent::new(PointerKind::Up, 80.0, 80.0).with_mods(cmd_alt), v).unwrap();
}
#[test]
fn the_pen_drops_the_new_path_asterisk_once_a_path_is_started() {
// The Pen's asterisk means a click starts a new path: it shows until the first anchor is
// placed, the pen has no badge while the path is drawn, and the asterisk comes back once the
// path is finished (Enter, or a click on the first anchor that closes it).
use vectorcraft_tools::Cursor;
let (none, v) = (Mods::default(), view());
let empty = Point::new(500.0, 500.0);
let mut s = session();
s.select_tool("pen", v).unwrap();
assert_eq!(s.cursor(empty, none, v), Cursor::Pen);
gesture(&mut s, &[(100.0, 300.0)], none);
assert_eq!(s.cursor(empty, none, v), Cursor::PenDrawing, "after the first anchor");
gesture(&mut s, &[(200.0, 300.0)], none);
assert_eq!(s.cursor(empty, none, v), Cursor::PenDrawing);
s.tool_key(ToolKey::Enter, none, v).unwrap();
assert_eq!(s.cursor(empty, none, v), Cursor::Pen, "Enter finished the path");
gesture(&mut s, &[(100.0, 400.0)], none);
gesture(&mut s, &[(200.0, 400.0)], none);
gesture(&mut s, &[(150.0, 450.0)], none);
assert_eq!(s.cursor(Point::new(100.0, 400.0), none, v), Cursor::PenClose);
gesture(&mut s, &[(100.0, 400.0)], none);
assert_eq!(s.cursor(empty, none, v), Cursor::Pen, "closing finished the path");
}
#[test]
fn reshaping_a_segment_keeps_smooth_anchors_smooth() {
// #494: the anchors at the ends of a dragged segment keep their kind: a smooth one's other
// handle turns with the moved one (at its length), a corner's stays.
let mut s = session();
let anchors = json!([{"x": 100, "y": 300}, {"x": 200, "y": 300, "in": [160, 300], "out": [240, 300]}, {"x": 300, "y": 300}]);
let id = NodeId(s.execute("path.create", &json!({"anchors": anchors})).unwrap()["id"].as_u64().unwrap());
s.execute("path.reshapeSegment", &json!({"id": id.0, "segment": 0, "t": 0.5, "dx": 0, "dy": -30})).unwrap();
let sp = &path(&s, id).subpaths[0];
let a = sp.anchors[1];
assert!(near(a.h_in, Point::new(160.0, 260.0)) && smooth(a), "{a:?}");
assert!((a.h_out.distance(a.p) - 40.0).abs() < 1e-9, "its length kept");
assert!(near(sp.anchors[0].h_out, Point::new(100.0, 260.0)) && !sp.anchors[0].has_in(), "the corner end: {:?}", sp.anchors[0]);
}
/// Both handles of segment `seg` stand at right angles to the line between its anchors, at one
/// length: that length, positive on the right of the line as it runs from the first anchor (y
/// down).
fn perpendicular_handles(sp: &vectorcraft_geom::SubPath, seg: usize) -> f64 {
let n = sp.anchors.len();
let (a, b) = (sp.anchors[seg], sp.anchors[(seg + 1) % n]);
let chord = b.p - a.p;
let normal = kurbo::Vec2::new(-chord.y, chord.x) / chord.hypot();
let (ha, hb) = (a.h_out - a.p, b.h_in - b.p);
assert!(ha.dot(chord).abs() < 1e-6 && hb.dot(chord).abs() < 1e-6, "at right angles: {a:?} {b:?}");
assert!((ha.dot(normal) - hb.dot(normal)).abs() < 1e-6, "one length: {a:?} {b:?}");
ha.dot(normal)
}
#[test]
fn shift_reshapes_a_segment_with_perpendicular_handles_of_one_length() {
// `perpendicular` (Shift): both handles of the segment stand at right angles to the line
// between its anchors at one length, on the side the point at t goes to, and that point lies
// as far from the line as the moved point does.
use kurbo::ParamCurve;
let mut s = session();
let reshape = |s: &mut Session, id: NodeId, seg: usize, t: f64, dx: f64, dy: f64| {
s.execute("path.reshapeSegment", &json!({"id": id.0, "segment": seg, "t": t, "dx": dx, "dy": dy, "perpendicular": true})).unwrap();
};
// A straight segment: the point at 0.5 goes 30 pt up and does not follow dx sideways.
let straight = json!([{"x": 100, "y": 300}, {"x": 200, "y": 300}, {"x": 300, "y": 300}]);
let id = NodeId(s.execute("path.create", &json!({"anchors": straight})).unwrap()["id"].as_u64().unwrap());
reshape(&mut s, id, 0, 0.5, 15.0, -30.0);
let sp = &path(&s, id).subpaths[0];
assert!((perpendicular_handles(sp, 0) + 40.0).abs() < 1e-6, "{sp:?}");
assert!(near(sp.segment(0).eval(0.5), Point::new(150.0, 270.0)), "{:?}", sp.segment(0));
assert!(!sp.anchors[1].has_out() && sp.segment_is_line(1), "the next segment stays straight");
// A curved segment: its handles turn upright, and its point at 0.25 goes 10 pt further up.
let curved = json!([{"x": 100, "y": 300, "out": [130, 280]}, {"x": 200, "y": 300, "in": [190, 250]}]);
let id = NodeId(s.execute("path.create", &json!({"anchors": curved})).unwrap()["id"].as_u64().unwrap());
let before = path(&s, id).subpaths[0].segment(0).eval(0.25);
reshape(&mut s, id, 0, 0.25, 0.0, -10.0);
let sp = &path(&s, id).subpaths[0];
assert!(perpendicular_handles(sp, 0) < 0.0, "above the line: {sp:?}");
assert!((sp.segment(0).eval(0.25).y - (before.y - 10.0)).abs() < 1e-6, "{:?}", sp.segment(0));
// Pulled past the line, the handles go to its other side.
reshape(&mut s, id, 0, 0.5, 0.0, 80.0);
assert!(perpendicular_handles(&path(&s, id).subpaths[0], 0) > 0.0, "below the line");
}
#[test]
fn shift_reshapes_the_closing_segment_of_a_rotated_square_and_undoes() {
// A square turned 45°: the Pen with Alt and Shift held drags its last segment, the one that
// closes it, outward and to one side; one undo step puts it back.
let mut s = session();
let diamond = json!([{"x": 200, "y": 100}, {"x": 300, "y": 200}, {"x": 200, "y": 300}, {"x": 100, "y": 200}]);
let id = NodeId(s.execute("path.create", &json!({"anchors": diamond, "closed": true})).unwrap()["id"].as_u64().unwrap());
let original = path(&s, id);
s.select_tool("pen", view()).unwrap();
let alt_shift = Mods { alt: true, shift: true, ..Mods::default() };
assert_eq!(gesture(&mut s, &[(150.0, 150.0), (140.0, 145.0), (130.0, 140.0)], alt_shift), 1);
let sp = &path(&s, id).subpaths[0];
let l = perpendicular_handles(sp, 3);
assert!(l < 0.0 && sp.anchors[3].h_out.x < 100.0 && sp.anchors[0].h_in.y < 100.0, "outward: {sp:?}");
assert!(!sp.anchors[3].has_in() && !sp.anchors[0].has_out(), "the corners' other handles stay put: {sp:?}");
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(path(&s, id), original);
}
#[test]
fn pen_drag_from_the_first_anchor_closes_the_path() {
// #501: closing a path by dragging out of its first anchor flickered between a close and a new
// path, and released at the wrong moment left the shape open. The press decides: the drag
// shapes the closing curve, symmetric, and the release closes the path wherever it ends.
let none = Mods::default();
let v = view();
let mut s = session();
s.select_tool("pen", v).unwrap();
for (x, y) in [(100.0, 300.0), (200.0, 300.0), (200.0, 400.0)] {
gesture(&mut s, &[(x, y)], none);
}
let id = s.doc().unwrap().selection.objects[0];
let pts: Vec<(f64, f64)> = (0..=12).map(|i| (100.0 + 5.0 * f64::from(i), 300.0 - 4.0 * f64::from(i))).collect();
s.pointer(&PointerEvent::new(PointerKind::Down, 100.0, 300.0), v).unwrap();
for &(x, y) in &pts[1..] {
s.pointer(&PointerEvent::new(PointerKind::Drag, x, y), v).unwrap();
let p = path(&s, id);
assert!(p.subpaths[0].closed && paths(&s).len() == 1, "closed throughout the drag, at ({x}, {y})");
}
s.pointer(&PointerEvent::new(PointerKind::Up, 160.0, 252.0), v).unwrap();
assert!(!s.in_interaction());
let sp = &path(&s, id).subpaths[0];
assert!(sp.closed && sp.anchors.len() == 3, "{sp:?}");
let a = sp.anchors[0];
assert_eq!((a.h_in, a.h_out), (Point::new(40.0, 348.0), Point::new(160.0, 252.0)), "symmetric");
assert_eq!(paths(&s).len(), 1);
// The next click starts a new path.
gesture(&mut s, &[(500.0, 500.0)], none);
assert_eq!(paths(&s).len(), 2);
}
#[test]
fn pen_with_alt_converts_the_anchors_of_the_path_being_drawn() {
// #504: while drawing, Alt-click on a smooth anchor of the path makes it a corner and Alt-drag
// on a corner one pulls out smooth handles; the next click goes on drawing the path.
let (none, alt) = (Mods::default(), Mods { alt: true, ..Mods::default() });
let v = view();
let mut s = session();
s.select_tool("pen", v).unwrap();
gesture(&mut s, &[(100.0, 300.0)], none);
gesture(&mut s, &[(200.0, 300.0), (240.0, 300.0)], none);
gesture(&mut s, &[(300.0, 400.0)], none);
gesture(&mut s, &[(400.0, 300.0)], none);
let id = s.doc().unwrap().selection.objects[0];
assert!(smooth(path(&s, id).subpaths[0].anchors[1]));
assert_eq!(gesture(&mut s, &[(200.0, 300.0)], alt), 1);
let a = path(&s, id).subpaths[0].anchors[1];
assert!(!a.has_in() && !a.has_out(), "a corner: {a:?}");
assert_eq!(gesture(&mut s, &[(300.0, 400.0), (320.0, 400.0), (340.0, 400.0)], alt), 1);
let a = path(&s, id).subpaths[0].anchors[2];
assert!(smooth(a) && a.h_out == Point::new(340.0, 400.0), "smooth: {a:?}");
gesture(&mut s, &[(500.0, 400.0)], none);
assert_eq!((paths(&s).len(), path(&s, id).subpaths[0].anchors.len()), (1, 5));
}
/// #776: the Pen continues any open path from the end clicked, selected or not, and while drawing a
/// click on an end of another open path joins the two into one path, in one undo step, which
/// finishes it.
#[test]
fn the_pen_continues_any_open_path_and_joins_another() {
use vectorcraft_tools::Cursor;
let (v, none) = (view(), Mods::default());
let mut s = session();
let a = line(&mut s, 100.0, 100.0, 200.0, 100.0);
let b = line(&mut s, 300.0, 200.0, 400.0, 200.0);
s.execute("select.none", &json!({})).unwrap();
s.select_tool("pen", v).unwrap();
assert_eq!(s.cursor(Point::new(200.0, 100.0), none, v), Cursor::PenContinue, "an end of a path that isn't selected");
gesture(&mut s, &[(200.0, 100.0)], none);
assert_eq!(s.doc().unwrap().selection.objects, vec![a]);
assert_eq!(s.cursor(Point::new(300.0, 200.0), none, v), Cursor::PenJoin);
assert_eq!(s.cursor(Point::new(350.0, 200.0), none, v), Cursor::PenDrawing, "the middle of the other path");
// #1009: Use Precise Cursors makes the join pointer a crosshair too.
s.execute("prefs.set", &json!({"key": "usePreciseCursors", "value": true})).unwrap();
assert_eq!(s.cursor(Point::new(300.0, 200.0), none, v), Cursor::Crosshair);
s.execute("prefs.set", &json!({"key": "usePreciseCursors", "value": false})).unwrap();
assert_eq!(gesture(&mut s, &[(300.0, 200.0)], none), 1);
let pts = |s: &Session, id| path(s, id).subpaths.iter().flat_map(|sp| sp.anchors.iter().map(|x| (x.p.x, x.p.y))).collect::<Vec<_>>();
assert_eq!(pts(&s, a), [(100.0, 100.0), (200.0, 100.0), (300.0, 200.0), (400.0, 200.0)]);
assert!(s.doc().unwrap().doc.node(b).is_none() && paths(&s).len() == 1, "one path");
// The join finished it: the next click starts a new path.
gesture(&mut s, &[(500.0, 500.0)], none);
assert_eq!(paths(&s).len(), 2);
// From a path's first end, drawing goes on from there: the path is reversed.
s.execute("select.none", &json!({})).unwrap();
s.select_tool("selection", v).unwrap();
s.select_tool("pen", v).unwrap();
gesture(&mut s, &[(100.0, 100.0)], none);
gesture(&mut s, &[(50.0, 50.0)], none);
assert_eq!(pts(&s, a), [(400.0, 200.0), (300.0, 200.0), (200.0, 100.0), (100.0, 100.0), (50.0, 50.0)]);
}
/// #1533: two corners of a rectangle brought together by Average become one anchor on Join, in
/// one undo step; anchors that aren't on one another leave Join as it was.
#[test]
fn join_merges_the_selected_anchors_average_brought_together() {
let mut s = session();
let r = rect(&mut s, 100.0, 100.0, 100.0, 80.0);
let pts = |s: &Session| path(s, r).subpaths[0].anchors.iter().map(|x| (x.p.x, x.p.y)).collect::<Vec<_>>();
s.execute("select.anchors", &json!({"id": r.0, "anchors": [[0, 0], [0, 1]], "mode": "set"})).unwrap();
assert!(s.execute("path.join", &json!({})).is_err(), "apart: nothing to merge, and the path is closed");
s.execute("path.average", &json!({"axis": "both"})).unwrap();
s.execute("path.join", &json!({})).unwrap();
assert_eq!(pts(&s), [(150.0, 100.0), (200.0, 180.0), (100.0, 180.0)]);
assert!(path(&s, r).subpaths[0].closed);
let sel = &s.doc().unwrap().selection;
assert!(sel.objects == [r] && sel.anchors.is_empty());
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(pts(&s).len(), 4);
// The closing pair: the first and last anchors of a closed path.
s.execute("select.anchors", &json!({"id": r.0, "anchors": [[0, 0], [0, 3]], "mode": "set"})).unwrap();
s.execute("path.average", &json!({"axis": "both"})).unwrap();
let before = pts(&s);
s.execute("path.join", &json!({})).unwrap();
assert_eq!(pts(&s), before[..3]);
}
/// `path.join {ids, ends}` joins the ends asked for, not the nearest pair; bad requests are errors.
#[test]
fn join_takes_the_paths_and_the_ends_to_join() {
let mut s = session();
let a = line(&mut s, 0.0, 0.0, 100.0, 0.0);
let b = line(&mut s, 110.0, 0.0, 200.0, 0.0);
// The far ends: a's first to b's last (the nearest pair would be a's last and b's first).
s.execute("path.join", &json!({"ids": [a.0, b.0], "ends": ["first", "last"]})).unwrap();
let pts: Vec<(f64, f64)> = path(&s, a).subpaths[0].anchors.iter().map(|x| (x.p.x, x.p.y)).collect();
assert_eq!(pts, [(100.0, 0.0), (0.0, 0.0), (200.0, 0.0), (110.0, 0.0)]);
let r = rect(&mut s, 0.0, 50.0, 10.0, 10.0);
for bad in [
json!({"ids": [a.0, a.0]}),
json!({"ids": [a.0, 999]}),
json!({"ids": [a.0, r.0], "ends": ["first"]}),
json!({"ids": [a.0, b.0], "ends": ["first", "middle"]}),
json!({"to": "round"}),
] {
assert!(s.execute("path.join", &bad).is_err(), "{bad}");
}
}
/// `path.join {to}` makes the joined anchor a corner or smooth point.
#[test]
fn join_to_corner_or_smooth_sets_the_merged_anchor() {
let mut s = session();
let r = rect(&mut s, 100.0, 100.0, 100.0, 80.0);
s.execute("select.anchors", &json!({"id": r.0, "anchors": [[0, 0], [0, 1]], "mode": "set"})).unwrap();
s.execute("path.average", &json!({"axis": "both"})).unwrap();
s.execute("path.join", &json!({"to": "corner"})).unwrap();
let a = &path(&s, r).subpaths[0].anchors[0];
assert_eq!(a.kind, vectorcraft_geom::AnchorKind::Corner);
assert_eq!((a.h_in, a.h_out), (a.p, a.p));
s.execute("edit.undo", &json!({})).unwrap();
s.execute("edit.undo", &json!({})).unwrap();
s.execute("path.average", &json!({"axis": "both"})).unwrap();
s.execute("path.join", &json!({"to": "smooth"})).unwrap();
let a = &path(&s, r).subpaths[0].anchors[0];
assert_eq!(a.kind, vectorcraft_geom::AnchorKind::Smooth);
let a = line(&mut s, 0.0, 0.0, 100.0, 0.0);
let b = line(&mut s, 100.0, 0.0, 200.0, 0.0);
s.execute("path.join", &json!({"ids": [a.0, b.0], "to": "smooth"})).unwrap();
let j = &path(&s, a).subpaths[0].anchors[1];
assert_eq!(j.kind, vectorcraft_geom::AnchorKind::Smooth);
}
#[test]
fn pen_with_alt_converts_the_anchors_of_a_path_in_a_selected_group() {
// #1273: a selected group (or compound path) shows its paths' anchors, so Alt with the Pen
// converts them as it does a selected path's, rather than starting a new path there.
let alt = Mods { alt: true, ..Mods::default() };
let v = view();
for wrap in ["object.group", "object.compoundPath.make"] {
let mut s = session();
let anchors = json!([{"x": 100, "y": 200}, {"x": 200, "y": 100, "in": [150, 100], "out": [250, 100]}, {"x": 300, "y": 200}]);
let id = NodeId(s.execute("path.create", &json!({"anchors": anchors})).unwrap()["id"].as_u64().unwrap());
s.execute(wrap, &json!({})).unwrap();
assert!(!s.doc().unwrap().selection.objects.contains(&id), "{wrap}: the wrapper is selected, not the path");
s.select_tool("pen", v).unwrap();
// Alt-click the smooth anchor: a corner, in one step, and no new path.
assert_eq!(gesture(&mut s, &[(200.0, 100.0)], alt), 1, "{wrap}");
let a = path(&s, id).subpaths[0].anchors[1];
assert!(!a.has_in() && !a.has_out(), "{wrap}: a corner: {a:?}");
assert_eq!(paths(&s).len(), 1, "{wrap}: no new path");
// Alt-drag it: smooth again.
assert_eq!(gesture(&mut s, &[(200.0, 100.0), (220.0, 100.0), (240.0, 110.0)], alt), 1, "{wrap}");
let a = path(&s, id).subpaths[0].anchors[1];
assert_eq!((a.h_in, a.h_out), (Point::new(160.0, 90.0), Point::new(240.0, 110.0)), "{wrap}");
assert_eq!(paths(&s).len(), 1, "{wrap}: no new path");
}
}
/// #1679: a filled pencil path keeps a stroke of None; an unfilled one with no stroke gets black,
/// or it would show nothing.
#[test]
fn a_filled_pencil_path_keeps_no_stroke() {
let mut s = Session::new();
s.execute("file.new", &json!({"width": 200, "height": 200})).unwrap();
s.execute("select.none", &json!({})).unwrap();
s.execute("paint.setFill", &json!({"color": "#ff0000"})).unwrap();
s.execute("paint.setStroke", &json!({"none": true})).unwrap();
let pts = json!([[10, 10], [60, 20], [90, 80], [20, 90]]);
let id = NodeId(s.execute("path.freehand", &json!({"points": pts, "fill": true})).unwrap()["id"].as_u64().unwrap());
let n = s.doc().unwrap().doc.node(id).unwrap().clone();
assert!(n.appearance.stroke_paint().is_none(), "{:?}", n.appearance);
assert!(!n.appearance.fill_paint().is_none());
let id = NodeId(s.execute("path.freehand", &json!({"points": pts})).unwrap()["id"].as_u64().unwrap());
assert!(!s.doc().unwrap().doc.node(id).unwrap().appearance.stroke_paint().is_none());
}
#[test]
fn open_anchor_delete_splits_runs_without_new_connections() {
let cases = [
(vec![3], vec![vec![0, 1, 2], vec![4, 5, 6]]),
(vec![2, 4], vec![vec![0, 1], vec![5, 6]]),
(vec![2, 3], vec![vec![0, 1], vec![4, 5, 6]]),
(vec![0], vec![vec![1, 2, 3, 4, 5, 6]]),
(vec![6], vec![vec![0, 1, 2, 3, 4, 5]]),
(vec![0, 6], vec![vec![1, 2, 3, 4, 5]]),
(vec![1, 3, 5], vec![]),
(vec![0, 1, 2, 3, 4, 5, 6], vec![]),
];
for (removed, expected) in cases {
let mut s = session();
let anchors: Vec<_> = (0..7).map(|i| json!({"x": 100 + 50 * i, "y": 100})).collect();
let id = NodeId(s.execute("path.create", &json!({"anchors": anchors})).unwrap()["id"].as_u64().unwrap());
let original = path(&s, id).subpaths[0].clone();
let refs: Vec<_> = removed.iter().map(|i| [0, *i]).collect();
s.execute("select.anchors", &json!({"id": id.0, "anchors": refs})).unwrap();
let before = s.doc().unwrap().doc.clone();
let selection = s.doc().unwrap().selection.clone();
let undo = undo_steps(&s);
s.execute("edit.clear", &json!({})).unwrap();
if expected.is_empty() {
assert!(s.doc().unwrap().doc.node(id).is_none(), "only isolated points remain: {removed:?}");
assert!(s.doc().unwrap().selection.objects.is_empty());
} else {
let result = path(&s, id);
assert_eq!(result.subpaths.len(), expected.len(), "deleted anchors: {removed:?}");
for (sp, indices) in result.subpaths.iter().zip(&expected) {
assert!(!sp.closed);
assert_eq!(sp.anchors.iter().map(|a| a.p).collect::<Vec<_>>(), indices.iter().map(|&i| original.anchors[i].p).collect::<Vec<_>>());
for (segment, pair) in indices.windows(2).enumerate() {
assert_eq!(sp.segment(segment), original.segment(pair[0]));
}
}
assert_eq!(s.doc().unwrap().selection.objects, vec![id]);
}
assert_eq!(undo_steps(&s), undo + 1);
assert!(s.doc().unwrap().selection.anchors.is_empty() && s.doc().unwrap().selection.segments.is_empty());
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(s.doc().unwrap().doc, before);
assert_eq!(s.doc().unwrap().selection, selection);
}
}
#[test]
fn open_anchor_delete_preserves_curves_appearance_and_history() {
let mut s = session();
rect(&mut s, 600.0, 300.0, 30.0, 40.0);
let data = "M100 100C120 60 180 140 200 100C220 60 280 140 300 100C320 60 380 140 400 100C420 60 480 140 500 100 M100 300L200 300L200 400Z";
let id = NodeId(s.execute("path.create", &json!({"d": data})).unwrap()["id"].as_u64().unwrap());
s.execute("paint.setStroke", &json!({"color": "#123456"})).unwrap();
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 2]]})).unwrap();
s.doc_mut().unwrap().mark_saved();
let before = s.doc().unwrap().doc.clone();
let selection = s.doc().unwrap().selection.clone();
let original = path(&s, id);
let undo = undo_steps(&s);
s.execute("path.deleteAnchors", &json!({})).unwrap();
let result = path(&s, id);
assert_eq!(result.subpaths.len(), 3, "two surviving runs plus the untouched contour");
for (sp, segment) in result.subpaths[..2].iter().zip([0, 3]) {
assert!(!sp.closed);
assert_eq!(sp.segment_count(), 1);
assert_eq!(sp.segment(0), original.subpaths[0].segment(segment));
assert!(!sp.anchors.first().unwrap().has_in() && !sp.anchors.last().unwrap().has_out());
}
assert_eq!(result.subpaths[2], original.subpaths[1]);
let after = s.doc().unwrap().doc.clone();
let mut restored = after.clone();
std::sync::Arc::make_mut(&mut restored).node_mut(id).unwrap().kind = before.node(id).unwrap().kind.clone();
assert_eq!(restored, before, "only the edited path geometry changes");
assert_eq!(s.doc().unwrap().selection.objects, vec![id]);
assert!(s.doc().unwrap().selection.anchors.is_empty() && s.doc().unwrap().selection.segments.is_empty());
assert_eq!(undo_steps(&s), undo + 1);
assert_eq!(s.doc().unwrap().history.undo.last().unwrap().label, "Clear");
assert!(s.doc().unwrap().is_dirty());
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(s.doc().unwrap().doc, before);
assert_eq!(s.doc().unwrap().selection, selection);
assert!(!s.doc().unwrap().is_dirty());
s.execute("edit.redo", &json!({})).unwrap();
assert_eq!(s.doc().unwrap().doc, after);
assert!(s.doc().unwrap().is_dirty());
s.execute("edit.clear", &json!({})).unwrap();
assert!(s.doc().unwrap().doc.node(id).is_none(), "the second Delete removes the remainder");
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(s.doc().unwrap().doc, after);
}
#[test]
fn closed_anchor_delete_then_join_closes_with_a_line() {
let mut s = session();
let data = "M100 100C120 60 180 60 200 100C220 140 280 140 300 100C320 60 380 60 400 100C420 140 480 140 500 100C500 200 100 200 100 100Z";
let id = NodeId(s.execute("path.create", &json!({"d": data})).unwrap()["id"].as_u64().unwrap());
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 2]]})).unwrap();
s.execute("path.deleteAnchors", &json!({})).unwrap();
let result = path(&s, id);
assert_eq!(result.subpaths.len(), 1);
let sp = &result.subpaths[0];
assert!(!sp.closed);
assert!(!sp.anchors.first().unwrap().has_in() && !sp.anchors.last().unwrap().has_out(), "dangling handles are cleared");
s.execute("path.join", &json!({"ids": [id.0]})).unwrap();
let joined = path(&s, id);
let sp = &joined.subpaths[0];
assert!(sp.closed);
let closing = sp.segment(sp.segment_count() - 1);
assert!(closing.p1 == closing.p0 && closing.p2 == closing.p3, "closing segment is a line: {closing:?}");
}
#[test]
fn open_anchor_delete_does_not_change_explicit_remove_anchors() {
for command in ["path.removeAnchors", "path.removeAnchor"] {
let mut s = session();
let anchors: Vec<_> = (0..5).map(|i| json!({"x": 100 + 50 * i, "y": 100})).collect();
let id = NodeId(s.execute("path.create", &json!({"anchors": anchors})).unwrap()["id"].as_u64().unwrap());
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 2]]})).unwrap();
let before = s.doc().unwrap().doc.clone();
let original = path(&s, id);
let undo = undo_steps(&s);
let params = if command == "path.removeAnchor" { json!({"id": id.0, "subpath": 0, "anchor": 2}) } else { json!({}) };
s.execute(command, &params).unwrap();
let result = path(&s, id);
assert_eq!(result.subpaths.len(), 1, "{command} keeps the path connected");
let sp = &result.subpaths[0];
assert!(!sp.closed);
assert_eq!(sp.segment_count(), 3);
assert_eq!(sp.anchors.iter().map(|a| a.p).collect::<Vec<_>>(), [0, 1, 3, 4].map(|i| original.subpaths[0].anchors[i].p));
assert_eq!(undo_steps(&s), undo + 1);
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(s.doc().unwrap().doc, before);
}
}
#[test]
fn open_anchor_delete_after_transform_keeps_mixed_selection_atomic() {
use vectorcraft_geom::Affine;
for xf in [
Affine::IDENTITY,
Affine::translate((23.0, -17.0)),
Affine::rotate(0.7),
Affine::translate((30.0, 40.0)) * Affine::scale_non_uniform(-2.0, 0.5),
] {
let mut s = session();
let whole = rect(&mut s, 600.0, 100.0, 40.0, 30.0);
let untouched = rect(&mut s, 600.0, 300.0, 40.0, 30.0);
let id = NodeId(
s.execute(
"path.create",
&json!({"d": "M100 100C120 60 180 140 200 100C220 60 280 140 300 100C320 60 380 140 400 100C420 60 480 140 500 100"}),
)
.unwrap()["id"]
.as_u64()
.unwrap(),
);
// Node::transform bakes coordinates. Deletion must not apply the transform a second time.
s.edit("Fixture transform", |d, _| {
d.node_mut(id).unwrap().transform(xf, false);
Ok(())
})
.unwrap();
let original = path(&s, id);
s.execute("select.set", &json!({"ids": [whole.0]})).unwrap();
s.execute("select.anchors", &json!({"id": id.0, "anchors": [[0, 2]], "mode": "add"})).unwrap();
let before = s.doc().unwrap().doc.clone();
let selection = s.doc().unwrap().selection.clone();
let undo = undo_steps(&s);
s.execute("edit.clear", &json!({})).unwrap();
let st = s.doc().unwrap();
assert!(st.doc.node(whole).is_none());
assert_eq!(st.doc.node(untouched), before.node(untouched));
let result = path(&s, id);
assert_eq!(result.subpaths.len(), 2);
for (sp, segment) in result.subpaths.iter().zip([0, 3]) {
assert_eq!(sp.segment_count(), 1);
assert_eq!(sp.segment(0), original.subpaths[0].segment(segment));
}
assert_eq!(st.selection.objects, vec![id]);
assert!(st.selection.anchors.is_empty() && st.selection.segments.is_empty());
assert_eq!(undo_steps(&s), undo + 1);
let after = st.doc.clone();
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(s.doc().unwrap().doc, before);
assert_eq!(s.doc().unwrap().selection, selection);
s.execute("edit.redo", &json!({})).unwrap();
assert_eq!(s.doc().unwrap().doc, after);
assert_eq!(s.doc().unwrap().selection.objects, vec![id]);
}
}