Blend spine: Shift-click picks several spine points, which drag together (#5285)

Direct Selection kept only one picked point of a blend's spine. Shift-click
now adds a point of the same spine or takes it away, and dragging any picked
point moves them all. object.blend.spine.moveAnchor takes `with`, the other
points to move by as much, with the key objects on them, in one undo step.

crates/engine/src/cmd/live/blend.rs

@@ -1,3 +1,5 @@
+use std::collections::BTreeSet;
+
 use super::common::{
     DEFAULT_DISTANCE, DEFAULT_STEPS, ease_param, fix_ids, ids_json, is_blend, orientation_param, percent_param, roots_param, selected_of,
     spacing_param, starts_param, wrap,
@@ -180,6 +182,17 @@ fn finite_point(p: &Value, cmd: &str) -> Result<Point> {
     if q.x.is_finite() && q.y.is_finite() && q.x.abs() < 1e9 && q.y.abs() < 1e9 { Ok(q) } else { Err(bad(cmd, "x and y must be finite")) }
 }
 
+/// Most spine points `with` names.
+const MAX_SPINE_POINTS: usize = 10_000;
+
+/// The optional `with` list of spine point indexes (empty when absent).
+fn spine_points_param(p: &Value, cmd: &str) -> Result<Vec<usize>> {
+    let Some(v) = p.get("with").filter(|v| !v.is_null()) else { return Ok(vec![]) };
+    let wrong = || bad(cmd, "`with` must be a list of at most 10000 spine point indexes");
+    let list = v.as_array().filter(|l| l.len() <= MAX_SPINE_POINTS).ok_or_else(wrong)?;
+    list.iter().map(|i| i.as_u64().and_then(|i| usize::try_from(i).ok()).ok_or_else(wrong)).collect()
+}
+
 pub(super) fn spine_move_anchor(s: &mut Session, p: &Value) -> Result<Value> {
     const C: &str = "object.blend.spine.moveAnchor";
     let index = index_param(p, "anchor", C)?;
@@ -191,6 +204,10 @@ pub(super) fn spine_move_anchor(s: &mut Session, p: &Value) -> Result<Value> {
         Some(_) => return Err(bad(C, "handle must be in or out")),
     };
     let independent = switch_or(p, "independent", false, C)?;
+    let with = spine_points_param(p, C)?;
+    if handle.is_some() && !with.is_empty() {
+        return Err(bad(C, "`with` moves points, not a handle"));
+    }
     edit_spine(s, p, C, "Reshape Spine", |sp, anchors, keys| {
         let a = sp.anchors.get_mut(index).ok_or_else(|| bad(C, "no such spine point"))?;
         if let Some(out) = handle {
@@ -198,9 +215,13 @@ pub(super) fn spine_move_anchor(s: &mut Session, p: &Value) -> Result<Value> {
             return Ok(());
         }
         let delta = q - a.p;
-        a.translate(delta);
-        // The key objects on the point move with it.
-        for (k, _) in anchors.iter().enumerate().filter(|(_, a)| **a == index) {
+        // The other points selected with it (#5285) move as far.
+        let moved: BTreeSet<usize> = with.iter().copied().chain([index]).collect();
+        for &i in &moved {
+            sp.anchors.get_mut(i).ok_or_else(|| bad(C, "no such spine point"))?.translate(delta);
+        }
+        // The key objects on the points move with them.
+        for (k, _) in anchors.iter().enumerate().filter(|(_, a)| moved.contains(*a)) {
             if let Some(key) = keys.get_mut(k) {
                 Arc::make_mut(key).transform(Affine::translate(delta), false);
             }

crates/engine/src/cmd/live/commands.rs

@@ -81,7 +81,7 @@ pub fn specs() -> Vec<CommandSpec> {
             "Move Spine Point",
             [],
             None,
-            "{id? (default: the selected blend), anchor: index, x, y, handle?: in|out, independent?: bool} move a point of the blend's spine (its handles along), or with `handle` place that handle's end at (x, y) (a smooth point keeps the other handle in line unless `independent`). A key object sitting on the point moves with it. The first edit turns the straight spine into a path",
+            "{id? (default: the selected blend), anchor: index, x, y, with?: [index…], handle?: in|out, independent?: bool} move a point of the blend's spine (its handles along), and the points `with` names by as much, or with `handle` place that handle's end at (x, y) (a smooth point keeps the other handle in line unless `independent`). A key object sitting on a moved point moves with it. The first edit turns the straight spine into a path",
             has_doc,
             spine_move_anchor
         ),

crates/engine/src/tests/blendspine.rs

@@ -66,6 +66,34 @@ fn a_spine_point_added_and_moved_bends_the_blend() {
     assert!(center(&steps(&s, g)[1]).distance(Point::new(55.0, 5.0)) < 1e-6);
 }
 
+/// #5285: `with` moves other spine points by as much as the one dragged, and the key objects on
+/// them along, in one undo step; it can't go with a handle or name a point the spine lacks.
+#[test]
+fn spine_points_move_together() {
+    let mut s = session();
+    let (a, b, g) = blend(&mut s);
+    s.execute("object.blend.spine.addAnchor", &json!({"x": 55, "y": 5})).unwrap();
+    let before = spec(&s, g);
+    assert!(s.execute("object.blend.spine.moveAnchor", &json!({"anchor": 1, "x": 55, "y": 45, "with": [9]})).is_err());
+    assert!(s.execute("object.blend.spine.moveAnchor", &json!({"anchor": 1, "x": 55, "y": 45, "with": [2], "handle": "in"})).is_err());
+    assert!(s.execute("object.blend.spine.moveAnchor", &json!({"anchor": 1, "x": 55, "y": 45, "with": "2"})).is_err());
+    assert_eq!(spec(&s, g), before, "refused requests change nothing");
+    s.execute("object.blend.spine.moveAnchor", &json!({"anchor": 1, "x": 55, "y": 45, "with": [2, 1]})).unwrap();
+    let sp = spec(&s, g).spine.unwrap();
+    let pts: Vec<Point> = sp.subpaths[0].anchors.iter().map(|x| x.p).collect();
+    let want = [Point::new(5.0, 5.0), Point::new(55.0, 45.0), Point::new(105.0, 45.0)];
+    assert!(pts.len() == 3 && pts.iter().zip(want).all(|(p, w)| p.distance(w) < 1e-9), "{pts:?}");
+    let keys = match node(&s, g).kind {
+        NodeKind::Blend { children, .. } => children,
+        _ => panic!("not a blend"),
+    };
+    let at = |id: NodeId| keys.iter().find(|k| k.id == id).map(|k| center(k)).unwrap();
+    assert!(at(b).distance(Point::new(105.0, 45.0)) < 1e-9, "the key on the point went along: {:?}", at(b));
+    assert!(at(a).distance(Point::new(5.0, 5.0)) < 1e-9, "the other stayed: {:?}", at(a));
+    s.execute("edit.undo", &json!({})).unwrap();
+    assert_eq!(spec(&s, g), before, "one undo step");
+}
+
 /// #2544: an Anchor Point drag on a blend spine must create two symmetric
 /// handles, not bend the adjacent segment and leave one handle behind.
 #[test]

crates/tools/src/direct.rs

@@ -25,8 +25,9 @@
 //! Both pick the key objects of a blend, and click or drag ruler guides ([`crate::rulerguide`]).
 //! A Cmd/Ctrl+Shift double-click with either one releases the ruler guide or guide path under the
 //! pointer ([`release_guide_at`]).
-//! Direct Selection also edits a blend's spine: drag its points (a key object on a point moves
-//! with it) and, once a point is clicked, its handles; and the points of selected gradient meshes
+//! Direct Selection also edits a blend's spine: drag its points (Shift-click picks several, which
+//! drag together; a key object on a point moves with it) and, once a point is clicked, its
+//! handles; and the points of selected gradient meshes
 //! and mesh envelopes and their handles ([`MeshEdit`]): Shift-clicks and the marquee pick several,
 //! a click on a gradient mesh's line picks its two ends and one inside a patch the four points
 //! around it, a drag of picked points moves them all, the arrow keys nudge them, and a solid fill
@@ -182,6 +183,9 @@ pub struct DirectSelectionTool {
     state: State,
     /// The spine point last clicked (blend, anchor): its handles show and can be dragged.
     spine: Option<(NodeId, usize)>,
+    /// Other points of that spine picked with it (Shift-click adds or takes one away); dragging
+    /// a picked point moves them all (#5285).
+    spine_more: Vec<usize>,
     mesh: MeshEdit,
     /// Smart guides of the handle, anchors or objects being dragged.
     guides: Vec<Overlay>,
@@ -237,6 +241,7 @@ impl DirectSelectionTool {
             group,
             state: State::Idle,
             spine: None,
+            spine_more: vec![],
             mesh: MeshEdit::default(),
             guides: vec![],
             anchor_snap: None,
@@ -773,7 +778,8 @@ impl Tool for DirectSelectionTool {
                     self.state = State::SpineHandle { id: sel.0, anchor: sel.1, out };
                     return vec![Action::Begin("Reshape Spine".into())];
                 }
-                self.spine = None;
+                let held = self.spine.take().filter(|(id, _)| cx.selection.contains(*id));
+                let more = std::mem::take(&mut self.spine_more);
                 self.snapped = false;
                 if let Some(g) = self.mesh.hit(cx, &cx.selection.objects, p) {
                     self.state = State::Mesh;
@@ -789,7 +795,24 @@ impl Tool for DirectSelectionTool {
                     return vec![Action::Begin("Reshape".into())];
                 }
                 if let Some((id, anchor, from)) = hit_spine_point(cx, p, point) {
+                    // The points of this spine picked before: Shift-click adds the point or takes
+                    // it away; a plain click on one of them keeps them all, to drag together.
+                    let mut picked: Vec<usize> =
+                        held.filter(|(h, _)| *h == id).map(|(_, a)| more.into_iter().chain([a]).collect()).unwrap_or_default();
+                    if ev.mods.shift
+                        && let Some(k) = picked.iter().position(|a| *a == anchor)
+                    {
+                        picked.remove(k);
+                        self.spine = picked.pop().map(|a| (id, a));
+                        self.spine_more = picked;
+                        return vec![];
+                    }
+                    if !ev.mods.shift && !picked.contains(&anchor) {
+                        picked.clear();
+                    }
+                    picked.retain(|a| *a != anchor);
                     self.spine = Some((id, anchor));
+                    self.spine_more = picked;
                     self.state = State::SpinePoint { id, anchor, from, start: p, began: false };
                     return if cx.selection.contains(id) { vec![] } else { vec![Action::Exec("select.set".into(), json!({"ids": [id.0]}))] };
                 }
@@ -873,7 +896,12 @@ impl Tool for DirectSelectionTool {
                     self.state = State::SpinePoint { id, anchor, from, start, began: true };
                 }
                 let q = from + move_delta(start, p, ev.mods.shift, cx.constrain_angle);
-                out.push(Action::Preview("object.blend.spine.moveAnchor".into(), json!({"id": id.0, "anchor": anchor, "x": q.x, "y": q.y})));
+                let mut params = json!({"id": id.0, "anchor": anchor, "x": q.x, "y": q.y});
+                let with: Vec<usize> = self.spine_more.iter().copied().filter(|a| spine_anchor(cx, (id, *a)).is_some()).collect();
+                if !with.is_empty() {
+                    params["with"] = json!(with);
+                }
+                out.push(Action::Preview("object.blend.spine.moveAnchor".into(), params));
                 out
             }
             (PointerKind::Drag, State::SpineSegment { id, seg, t, start, began }) => {
@@ -1139,6 +1167,12 @@ impl DirectSelectionTool {
             out.push(Overlay::Handle { p: h, color });
         }
         out.push(Overlay::Anchor { p: a.p, color, filled: true, size: 5.0 });
+        out.extend(self.spine_more.iter().filter_map(|i| spine_anchor(cx, (sel.0, *i))).map(|m| Overlay::Anchor {
+            p: m.p,
+            color,
+            filled: true,
+            size: 5.0,
+        }));
         out
     }
 }

crates/tools/src/direct/tests.rs

@@ -182,6 +182,45 @@ fn dragging_a_spine_point_moves_it() {
     assert!(t.overlays(&cx).iter().any(|o| matches!(o, Overlay::Anchor { filled: true, .. })), "the clicked point shows");
 }
 
+/// #5285: Shift-click picks several points of a blend's spine, as of a path; dragging one of them
+/// moves them all (`with`), and Shift-click on a picked point takes it away again.
+#[test]
+fn shift_click_picks_several_spine_points_which_drag_together() {
+    let (mut d, g, _) = blend_doc();
+    let sp = vectorcraft_geom::SubPath::polyline(&[Point::new(110.0, 310.0), Point::new(160.0, 310.0), Point::new(210.0, 310.0)], false);
+    let Some(NodeKind::Blend { spec, .. }) = d.node_mut(g).map(|n| &mut n.kind) else { panic!("blend") };
+    (spec.spine, spec.key_anchors) = (Some(PathData::single(sp)), vec![0, 2]);
+    let mut s = Selection::default();
+    s.set([g]);
+    let p = paint();
+    let cx = cx(&d, &s, &p);
+    let shift = Mods { shift: true, ..Mods::default() };
+    let filled = |t: &DirectSelectionTool| t.overlays(&cx).iter().filter(|o| matches!(o, Overlay::Anchor { filled: true, .. })).count();
+    let mut t = DirectSelectionTool::new(false);
+    t.pointer(&cx, &PointerEvent::new(PointerKind::Down, 160.0, 310.0));
+    t.pointer(&cx, &PointerEvent::new(PointerKind::Up, 160.0, 310.0));
+    t.pointer(&cx, &PointerEvent::new(PointerKind::Down, 210.0, 310.0).with_mods(shift));
+    assert_eq!(filled(&t), 2, "both picked points show");
+    let a = t.pointer(&cx, &PointerEvent::new(PointerKind::Drag, 210.0, 330.0));
+    assert_eq!(
+        a.last(),
+        Some(&Action::Preview("object.blend.spine.moveAnchor".into(), json!({"id": g.0, "anchor": 2, "x": 210.0, "y": 330.0, "with": [1]})))
+    );
+    assert_eq!(t.pointer(&cx, &PointerEvent::new(PointerKind::Up, 210.0, 330.0)), vec![Action::Commit]);
+    // A plain press on a picked point keeps both.
+    t.pointer(&cx, &PointerEvent::new(PointerKind::Down, 160.0, 310.0));
+    let a = t.pointer(&cx, &PointerEvent::new(PointerKind::Drag, 160.0, 300.0));
+    assert!(matches!(a.last(), Some(Action::Preview(_, v)) if v["anchor"] == 1 && v["with"] == json!([2])), "{a:?}");
+    t.pointer(&cx, &PointerEvent::new(PointerKind::Up, 160.0, 300.0));
+    // Shift-click takes one away; a plain click on another point picks it alone.
+    t.pointer(&cx, &PointerEvent::new(PointerKind::Down, 210.0, 310.0).with_mods(shift));
+    t.pointer(&cx, &PointerEvent::new(PointerKind::Up, 210.0, 310.0).with_mods(shift));
+    assert_eq!(filled(&t), 1);
+    t.pointer(&cx, &PointerEvent::new(PointerKind::Down, 110.0, 310.0));
+    let a = t.pointer(&cx, &PointerEvent::new(PointerKind::Drag, 110.0, 330.0));
+    assert!(matches!(a.last(), Some(Action::Preview(_, v)) if v["anchor"] == 0 && v.get("with").is_none()), "{a:?}");
+}
+
 /// #1111: the Anchor Point tool bends a selected blend's straight spine; Direct Selection
 /// reshapes a curved spine segment and leaves a straight one alone, as it does a path's.
 #[test]

crates/ui-egui/src/i18n/bg.tsv

@@ -4196,6 +4196,8 @@ axis	Both	И двете
 @msg	no such saved selection	няма такава запазена селекция
 @msg	no such segment	няма такъв сегмент
 @msg	no such spine point	няма такава точка от оста
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` трябва да е списък с най-много 10000 индекса на точки от оста
+@msg	`with` moves points, not a handle	`with` мести точки, не дръжка
 @msg	no such spine segment	няма такъв сегмент от оста
 @msg	no such subpath	няма такъв подпът
 @msg	no such user library	няма такава потребителска библиотека

crates/ui-egui/src/i18n/bs.tsv

@@ -4591,6 +4591,8 @@ imageTrace	Outline	Obris
 @msg	no such saved selection	nema takvog sačuvanog odabira
 @msg	no such segment	nema takvog segmenta
 @msg	no such spine point	nema takve tačke kičme
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` mora biti lista od najviše 10000 indeksa tačaka kičme
+@msg	`with` moves points, not a handle	`with` pomjera tačke, ne ručicu
 @msg	no such spine segment	nema takvog segmenta kičme
 @msg	no such subpath	nema takve podputanje
 @msg	no such user library	nema takve korisničke biblioteke

crates/ui-egui/src/i18n/ca.tsv

@@ -5328,6 +5328,8 @@ digits	Malayalam	Malaiàlam
 @msg	no such saved selection	no existeix aquesta selecció desada
 @msg	no such segment	no existeix aquest segment
 @msg	no such spine point	no existeix aquest punt de l’espina
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` ha de ser una llista d’un màxim de 10000 índexs de punts de l’espina
+@msg	`with` moves points, not a handle	`with` mou punts, no una nansa
 @msg	no such spine segment	no existeix aquest segment de l’espina
 @msg	no such subpath	no existeix aquest subtraçat
 @msg	no such user library	no existeix aquesta biblioteca d’usuari

crates/ui-egui/src/i18n/cs.tsv

@@ -4639,6 +4639,8 @@ imageTrace	Outline	Obrys
 @msg	no such saved selection	takový uložený výběr neexistuje
 @msg	no such segment	takový segment neexistuje
 @msg	no such spine point	takový bod páteře neexistuje
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` musí být seznam nejvýše 10000 indexů bodů páteře
+@msg	`with` moves points, not a handle	`with` posouvá body, ne táhlo
 @msg	no such spine segment	takový segment páteře neexistuje
 @msg	no such subpath	taková dílčí cesta neexistuje
 @msg	no such user library	taková uživatelská knihovna neexistuje

crates/ui-egui/src/i18n/de.tsv

@@ -4248,6 +4248,8 @@ theme	Appearance	Erscheinungsbild
 @msg	no such saved selection	keine solche gespeicherte Auswahl
 @msg	no such segment	kein solches Segment
 @msg	no such spine point	kein solcher Achsenpunkt
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` muss eine Liste von höchstens 10000 Achsenpunkt-Indizes sein
+@msg	`with` moves points, not a handle	`with` verschiebt Punkte, keinen Griff
 @msg	no such spine segment	kein solches Achsensegment
 @msg	no such subpath	kein solcher Teilpfad
 @msg	no such user library	keine solche Benutzerbibliothek

crates/ui-egui/src/i18n/el.tsv

@@ -4287,6 +4287,8 @@ digits	Malayalam	Μαλαγιάλαμ
 @msg	no such saved selection	δεν υπάρχει τέτοια αποθηκευμένη επιλογή
 @msg	no such segment	δεν υπάρχει τέτοιο τμήμα
 @msg	no such spine point	δεν υπάρχει τέτοιο σημείο κεντρικής καμπύλης
+@msg	`with` must be a list of at most 10000 spine point indexes	το `with` πρέπει να είναι λίστα με έως 10000 δείκτες σημείων κεντρικής καμπύλης
+@msg	`with` moves points, not a handle	το `with` μετακινεί σημεία, όχι λαβή
 @msg	no such spine segment	δεν υπάρχει τέτοιο τμήμα κεντρικής καμπύλης
 @msg	no such subpath	δεν υπάρχει τέτοια υποδιαδρομή
 @msg	no such user library	δεν υπάρχει τέτοια βιβλιοθήκη χρήστη

crates/ui-egui/src/i18n/es.tsv

@@ -4332,6 +4332,8 @@ axis	Both	Ambos
 @msg	no such saved selection	no existe esa selección guardada
 @msg	no such segment	no existe ese segmento
 @msg	no such spine point	no existe ese punto del eje
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` debe ser una lista de como máximo 10000 índices de puntos del eje
+@msg	`with` moves points, not a handle	`with` mueve puntos, no un manejador
 @msg	no such spine segment	no existe ese segmento del eje
 @msg	no such subpath	no existe ese subtrazado
 @msg	no such user library	no existe esa biblioteca de usuario

crates/ui-egui/src/i18n/fi.tsv

@@ -4547,6 +4547,8 @@ imageTrace	Outline	Ääriviiva
 @msg	no such saved selection	tallennettua valintaa ei ole
 @msg	no such segment	segmenttiä ei ole
 @msg	no such spine point	selkärangan pistettä ei ole
+@msg	`with` must be a list of at most 10000 spine point indexes	`with`-arvon on oltava luettelo, jossa on enintään 10000 selkärangan pisteen indeksiä
+@msg	`with` moves points, not a handle	`with` siirtää pisteitä, ei kahvaa
 @msg	no such spine segment	selkärangan segmenttiä ei ole
 @msg	no such subpath	alipolkua ei ole
 @msg	no such user library	käyttäjäkirjastoa ei ole

crates/ui-egui/src/i18n/fr.tsv

@@ -4322,6 +4322,8 @@ axis	Both	Les deux
 @msg	no such saved selection	sélection enregistrée inexistante
 @msg	no such segment	segment inexistant
 @msg	no such spine point	point de la dorsale inexistant
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` doit être une liste d’au plus 10000 indices de points de la dorsale
+@msg	`with` moves points, not a handle	`with` déplace des points, pas une poignée
 @msg	no such spine segment	segment de la dorsale inexistant
 @msg	no such subpath	sous-tracé inexistant
 @msg	no such user library	bibliothèque utilisateur inexistante

crates/ui-egui/src/i18n/hu.tsv

@@ -5009,6 +5009,8 @@ imageTrace	Outline	Körvonal
 @msg	no such saved selection	nincs ilyen mentett kijelölés
 @msg	no such segment	nincs ilyen szakasz
 @msg	no such spine point	nincs ilyen gerincpont
+@msg	`with` must be a list of at most 10000 spine point indexes	`with`: legfeljebb 10000 gerincpont-indexből álló lista kell
+@msg	`with` moves points, not a handle	`with` pontokat mozgat, nem fogantyút
 @msg	no such spine segment	nincs ilyen gerincszakasz
 @msg	no such subpath	nincs ilyen részútvonal
 @msg	no such user library	nincs ilyen felhasználói könyvtár

crates/ui-egui/src/i18n/it.tsv

@@ -4374,6 +4374,8 @@ axis	Both	Entrambi
 @msg	no such saved selection	selezione salvata inesistente
 @msg	no such segment	segmento inesistente
 @msg	no such spine point	punto della dorsale inesistente
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` deve essere un elenco di al massimo 10000 indici di punti della dorsale
+@msg	`with` moves points, not a handle	`with` sposta punti, non una maniglia
 @msg	no such spine segment	segmento della dorsale inesistente
 @msg	no such subpath	sottotracciato inesistente
 @msg	no such user library	libreria utente inesistente

crates/ui-egui/src/i18n/ja.tsv

@@ -4153,6 +4153,8 @@ swatch	Bright Violet	ビビッドバイオレット
 @msg	no such anchor	指定されたアンカーポイントが見つかりません
 @msg	no such segment	指定されたセグメントが見つかりません
 @msg	no such spine point	指定されたスパインポイントが見つかりません
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` には最大 10000 個のスパインポイントのインデックスのリストを指定してください
+@msg	`with` moves points, not a handle	`with` はポイントを移動します。ハンドルには使えません
 @msg	no such spine segment	指定されたスパインセグメントが見つかりません
 @msg	no such subpath	指定されたサブパスが見つかりません
 @msg	object {id} is not a path	オブジェクト {id} はパスではありません

crates/ui-egui/src/i18n/ka.tsv

@@ -5529,6 +5529,8 @@ imageTrace	Outline	კონტური
 @msg	missing number `{key}`	აკლია რიცხვი `{key}`
 @msg	missing integer `{key}`	აკლია მთელი რიცხვი `{key}`
 @msg	no such spine point	ხერხემლის ასეთი წერტილი არ არსებობს
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` უნდა იყოს ხერხემლის წერტილების არაუმეტეს 10000 ინდექსის სია
+@msg	`with` moves points, not a handle	`with` წერტილებს გადაადგილებს და არა სახელურს
 @msg	no such spine segment	ხერხემლის ასეთი სეგმენტი არ არსებობს
 @msg	not a blend	ეს გადასვლა არ არის
 @msg	only http, https and mailto URLs open in the browser, not “{url}”	ბრაუზერში მხოლოდ http, https და mailto URL-ები იხსნება და არა „{url}“

crates/ui-egui/src/i18n/ko.tsv

@@ -4080,6 +4080,8 @@ theme	Appearance	외관
 @msg	no such anchor	해당 앵커가 없습니다
 @msg	no such segment	해당 세그먼트가 없습니다
 @msg	no such spine point	해당 스파인 포인트가 없습니다
+@msg	`with` must be a list of at most 10000 spine point indexes	`with`는 스파인 포인트 인덱스 최대 10000개의 목록이어야 합니다
+@msg	`with` moves points, not a handle	`with`는 포인트를 이동하며 핸들에는 쓸 수 없습니다
 @msg	no such spine segment	해당 스파인 세그먼트가 없습니다
 @msg	no such subpath	해당 하위 패스가 없습니다
 @msg	object {id} is not a path	개체 {id}은(는) 패스가 아닙니다

crates/ui-egui/src/i18n/nl.tsv

@@ -5585,6 +5585,8 @@ swatch	Bright Violet	Felviolet
 @msg	missing number `{key}`	getal `{key}` ontbreekt
 @msg	missing integer `{key}`	geheel getal `{key}` ontbreekt
 @msg	no such spine point	dat aspunt bestaat niet
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` moet een lijst van hoogstens 10000 aspuntindexen zijn
+@msg	`with` moves points, not a handle	`with` verplaatst punten, geen handgreep
 @msg	no such spine segment	dat assegment bestaat niet
 @msg	not a blend	geen vermenging
 @msg	select a blend or give `id`	selecteer een vermenging of geef `id` op

crates/ui-egui/src/i18n/pl.tsv

@@ -4462,6 +4462,8 @@ imageTrace	Outline	Kontur
 @msg	no such saved selection	brak takiego zapisanego zaznaczenia
 @msg	no such segment	brak takiego segmentu
 @msg	no such spine point	brak takiego punktu grzbietu
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` musi być listą co najwyżej 10000 indeksów punktów grzbietu
+@msg	`with` moves points, not a handle	`with` przesuwa punkty, nie uchwyt
 @msg	no such spine segment	brak takiego segmentu grzbietu
 @msg	no such subpath	brak takiej ścieżki podrzędnej
 @msg	no such user library	brak takiej biblioteki użytkownika

crates/ui-egui/src/i18n/pt-br.tsv

@@ -3912,6 +3912,8 @@ axis	Both	Ambos
 @msg	no such saved selection	seleção salva inexistente
 @msg	no such segment	segmento inexistente
 @msg	no such spine point	ponto da coluna inexistente
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` deve ser uma lista de no máximo 10000 índices de pontos da coluna
+@msg	`with` moves points, not a handle	`with` move pontos, não uma alça
 @msg	no such spine segment	segmento da coluna inexistente
 @msg	no such subpath	subtraçado inexistente
 @msg	no such user library	biblioteca do usuário inexistente

crates/ui-egui/src/i18n/ru.tsv

@@ -4369,6 +4369,8 @@ axis	Both	Оба
 @msg	no such saved selection	такого сохранённого выделения нет
 @msg	no such segment	такого сегмента нет
 @msg	no such spine point	такой точки остова нет
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` должен быть списком не более чем из 10000 индексов точек остова
+@msg	`with` moves points, not a handle	`with` перемещает точки, а не маркер
 @msg	no such spine segment	такого сегмента остова нет
 @msg	no such subpath	такого вложенного контура нет
 @msg	no such user library	такой пользовательской библиотеки нет

crates/ui-egui/src/i18n/sv.tsv

@@ -4237,6 +4237,8 @@ axis	Both	Båda
 @msg	no such saved selection	den sparade markeringen finns inte
 @msg	no such segment	segmentet finns inte
 @msg	no such spine point	ryggradspunkten finns inte
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` måste vara en lista med högst 10000 ryggradspunktsindex
+@msg	`with` moves points, not a handle	`with` flyttar punkter, inte ett handtag
 @msg	no such spine segment	ryggradssegmentet finns inte
 @msg	no such subpath	delbanan finns inte
 @msg	no such user library	användarbiblioteket finns inte

crates/ui-egui/src/i18n/tests.rs

@@ -1823,6 +1823,12 @@ fn blend_spine_param_errors_say_what_is_wrong() {
         ("object.blend.spine.moveAnchor", json!({"anchor": 0, "x": 1e12, "y": 0}), "x and y must be finite"),
         ("object.blend.spine.moveAnchor", json!({"anchor": 0, "x": 0, "y": 0, "handle": "up"}), "handle must be in or out"),
         ("object.blend.spine.moveAnchor", json!({"anchor": 5, "x": 0, "y": 0}), "no such spine point"),
+        (
+            "object.blend.spine.moveAnchor",
+            json!({"anchor": 0, "x": 0, "y": 0, "with": "1"}),
+            "`with` must be a list of at most 10000 spine point indexes",
+        ),
+        ("object.blend.spine.moveAnchor", json!({"anchor": 0, "x": 0, "y": 0, "with": [1], "handle": "in"}), "`with` moves points, not a handle"),
         ("object.blend.spine.moveAnchor", json!({"id": other, "anchor": 0, "x": 0, "y": 0}), "not a blend"),
         ("object.blend.spine.reshapeSegment", json!({"segment": 0, "dx": 1e12}), "t, dx and dy must be finite"),
         ("object.blend.spine.reshapeSegment", json!({"segment": 5, "dy": 10}), "no such spine segment"),

crates/ui-egui/src/i18n/tr.tsv

@@ -5432,6 +5432,8 @@ theme	Appearance	Görünüm
 @msg	mask art ends outside a mask dictionary	maske çizimi bir maske sözlüğünün dışında bitiyor
 @msg	missing number `{key}`	`{key}` sayısı eksik
 @msg	no such spine point	böyle bir omurga noktası yok
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` en fazla 10000 omurga noktası dizininden oluşan bir liste olmalıdır
+@msg	`with` moves points, not a handle	`with` noktaları taşır, tutamacı değil
 @msg	no such spine segment	böyle bir omurga segmenti yok
 @msg	not a blend	bir karışım değil
 @msg	select a blend or give `id`	bir karışım seçin veya `id` belirtin

crates/ui-egui/src/i18n/uk.tsv

@@ -4358,6 +4358,8 @@ axis	Both	Обидві
 @msg	no such saved selection	такого збереженого виділення немає
 @msg	no such segment	такого сегменту немає
 @msg	no such spine point	такої точки осі немає
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` має бути списком щонайбільше з 10000 індексів точок осі
+@msg	`with` moves points, not a handle	`with` переміщує точки, а не маркер
 @msg	no such spine segment	такого сегмента осі немає
 @msg	no such subpath	такого вкладеного контуру немає
 @msg	no such user library	такої користувацької бібліотеки немає

crates/ui-egui/src/i18n/vi.tsv

@@ -4661,6 +4661,8 @@ theme	Appearance	Giao diện
 @msg	no such saved selection	không có vùng chọn đã lưu như vậy
 @msg	no such segment	không có đoạn như vậy
 @msg	no such spine point	không có điểm trục như vậy
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` phải là danh sách tối đa 10000 chỉ số điểm trục
+@msg	`with` moves points, not a handle	`with` di chuyển các điểm, không phải tay nắm
 @msg	no such spine segment	không có đoạn trục như vậy
 @msg	no such subpath	không có nhánh con như vậy
 @msg	no such user library	không có thư viện người dùng như vậy

crates/ui-egui/src/i18n/zh-hans.tsv

@@ -1883,6 +1883,8 @@ file-filter	Templates	模板
 @msg	the blend has no spine	混合对象没有脊线
 @msg	the spine has no segments	脊线没有线段
 @msg	no such spine point	没有此脊线点
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` 必须是最多 10000 个脊线点索引的列表
+@msg	`with` moves points, not a handle	`with` 移动的是点，不是手柄
 @msg	no such spine segment	没有此脊线线段
 @msg	a key object sits on that point	该点上有关键对象
 @msg	a spine keeps at least two points	脊线至少保留两个点

crates/ui-egui/src/i18n/zh-hant.tsv

@@ -2856,6 +2856,8 @@ file-filter	Templates	範本
 @msg	the blend has no spine	漸變物件沒有脊線
 @msg	the spine has no segments	脊線沒有線段
 @msg	no such spine point	沒有這個脊線點
+@msg	`with` must be a list of at most 10000 spine point indexes	`with` 必須是最多 10000 個脊線點索引的清單
+@msg	`with` moves points, not a handle	`with` 移動的是點，不是控制把手
 @msg	no such spine segment	沒有這個脊線線段
 @msg	a key object sits on that point	該點上有關鍵物件
 @msg	a spine keeps at least two points	脊線至少要保留兩個點

docs/ui-parity.md

@@ -1,6 +1,6 @@
 # UI and interaction parity
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-06 · **Change:** minor (Direct Selection: Cmd/Ctrl held lends the Selection tool and shows its bounding box, #3901; Join tool trims two crossing open paths and joins them at the crossing, #5844; Control bar: Paragraph: link and Align left/center/right while type is selected, #5372; scores and estimates unchanged) · **Target:** Adobe Illustrator 2026 (30.x; Units › East Asian Type acts, with Q and Ha units; scores unchanged)
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-06 · **Change:** minor (Direct Selection: Shift-click picks several blend spine points, which drag together, #5285; scores and estimates unchanged) · **Target:** Adobe Illustrator 2026 (30.x; Units › East Asian Type acts, with Q and Ha units; scores unchanged)
 
 ## Feature submission evidence
 
@@ -38,6 +38,7 @@ Artboard Options forwards the active Artboard tool's Scale Artwork with Artboard
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-11-05 | minor | Direct Selection: Shift-click picks several points of a blend's spine and dragging one moves them all, with the key objects on them, in one undo step (#5285); scores and estimates unchanged |
 | 2026-11-05 | minor | Direct Selection: Cmd/Ctrl held lends the Selection tool, whose bounding box shows while the key is down over objects selected whole; its handles scale and rotate, and a Cmd drag moves the whole object with its direct-selected anchors kept (#3901); scores and estimates unchanged |
 | 2026-11-05 | minor | Join tool: scrubbing over the ends of two crossing open paths that run past the crossing trims those ends and joins the paths there with a corner, instead of drawing a segment between the ends (#5844); scores and estimates unchanged |
 | 2026-11-05 | minor | Effect dialogs: a swatch beside a hex colour field follows typed values, and a double-click opens the Color Picker over the dialog, whose OK fills the field (#5365); scores and estimates unchanged |
@@ -135,6 +136,7 @@ tools, never checked side by side) isn't captured row by row.
 | Layers panel lists a blend's spine (#4820) | done | an open blend shows a `<Path>` row below its key objects, where Release leaves the spine; a click selects the blend (Shift/Cmd toggles it) so Direct Selection edits the spine; a locked blend's row selects nothing; no row while searching or filtering (`a_blends_spine_is_a_row_below_its_keys_that_selects_the_blend`) |
 | Layers panel: a layer whose Layer Options › Print is off shows its name italic (#5739) | done | the panel row and its drag ghost; a printing layer stays upright, and Print on again restores it; `panels::layers` test `a_layer_that_does_not_print_has_its_name_italic` |
 | Blend spine Anchor Point conversion and handle editing (#2544) | implemented | symmetric handles, independent drag/retraction, visible-handle policy and selection/stacking covered by tool and engine regressions; Windows native canvas checks and screenshots reviewed in PR #2643 |
+| Several blend spine points picked and dragged together (#5285) | done | with Direct Selection, Shift-click picks more points of a selected blend's spine or takes one away, as on a path; dragging any picked point moves them all, and the key objects on them, in one undo step (`object.blend.spine.moveAnchor {with}`); a marquee doesn't pick spine points yet |
 | Add/Delete/Anchor Point tools; Anchor Point tool drags segments to reshape | done | #2267: a click on a handle end retracts that handle and leaves the anchor a corner with the other one; Shift held at the press on an anchor moves it, handles and all (Shift kept down: at 45° steps) instead of pulling out handles |
 | Pencil: Fidelity, Keep selected, Alt to Smooth, edit selected paths, close by proximity | done | Fidelity goes down to 0.01 pt in the dialog, the tool and `path.freehand` (the Smooth tool keeps 0.05); its slider runs across the Tool Options row on a logarithmic rail from 0.01 to 20 pt, the field shows hundredths, and the slider's and the field's arrow keys step hundredths up to 0.1 pt, tenths up to 1 pt and whole points above (Shift ×10) (#3328); Alt key toggles to Smooth Tool (#2001); Shift held at the press draws a straight line at 45° steps from the Constrain Angle, and Alt held at the press (with Alt key toggles to Smooth Tool off) a straight line at any angle (#3799), with a straight-line cursor while Shift or Alt is held before the press, and a path-continuation cursor over an end of a selected open path, where the line continues the path; Edit Selected Paths continues a selected path from an end and, from a stroke that starts and ends on a selected path, redraws the section between (the shorter way round a closed path, #2850); with Keep selected (Pencil and Paintbrush, on by default) on, a stroke selects the path it draws or continues and replaces the earlier selection, and off a new stroke leaves nothing selected, the earlier selection included, while a continued or redrawn path is deselected and the rest of the selection stays; a filled Pencil path keeps a stroke of None (#1804, part of #1679); while a freehand stroke is drawn back to within Close Paths When Ends Are Within of its start, the Pencil and the Paintbrush show the closing cursor, and a release there closes the path |
 | Pencil: Fidelity, Keep selected, Alt to Smooth, edit selected paths, close by proximity | done | Alt key toggles to Smooth Tool (#2001); Shift held at the press draws a straight line at 45° steps from the Constrain Angle, and Alt held at the press (with Alt key toggles to Smooth Tool off) a straight line at any angle (#3799), with a straight-line cursor while Shift or Alt is held before the press, and a path-continuation cursor over an end of a selected open path, where the line continues the path; Edit Selected Paths continues a selected path from an end and, from a stroke that starts and ends on a selected path, redraws the section between (the shorter way round a closed path, #2850); with Keep selected (Pencil and Paintbrush, on by default) on, a stroke selects the path it draws or continues and replaces the earlier selection, and off a new stroke leaves nothing selected, the earlier selection included, while a continued or redrawn path is deselected and the rest of the selection stays; a filled Pencil path keeps a stroke of None (#1804, part of #1679); while a freehand stroke is drawn back to within Close Paths When Ends Are Within of its start, the Pencil and the Paintbrush show the closing cursor, and a release there closes the path; a Pencil stroke from an end of one selected open path to an end of another connects the two into one path |