Put Move/Copy Sketch Entities on the toolbar, behind a window with distances, an angle and a copy flag (#735)

Sketch Move gets a toolbar placement in Sketch > Modify and a Move/Copy tool window with X and Y distances, an angle, an optional centre point and a Create Copy flag, replacing the context-menu route that ran the command with no parameters.

crates/ui-egui/src/canvas.rs

@@ -85,7 +85,14 @@ pub fn anchor(app: &SolveApp, d: &Dialog) -> Option<(Vec3, Option<Vec3>)> {
         Kind::Sheet(_) => (at, crate::dialogs_sheet::arrow(app, d).or(normal)),
         Kind::Plastic(_) => (at, normal),
         Kind::PatternRect { .. } => (at, d.inputs.get(1).and_then(|i| i.items.first()).and_then(|x| crate::dialogs::axis_of(app, x)).map(|a| a.1)),
-        // Already computed above, per picked curve; keep it rather than the default below.
+        // A sketch move's X Distance grows along the sketch's own x axis, so its drag arrow
+        // lies in the sketch plane. Scale has no arrow: a factor is not a length, and the
+        // square handle it wants is its own change.
+        Kind::SketchModify(crate::sketch_modify_ui::Mod::Move { .. }) => {
+            (at, app.session.active_sketch.and_then(|id| st.sketch(id)).and_then(|ss| ss.plane.x.normalized()))
+        }
+        // Offset's arrow is already computed above, per picked curve; keep it rather than the
+        // default below.
         Kind::SketchModify(_) => (at, normal),
         _ => (at, None),
     })
@@ -282,8 +289,15 @@ fn draw(app: &SolveApp, ui: &mut egui::Ui, painter: &egui::Painter, proj: &Proj,
     };
     let symmetric = to_span.is_none() && matches!(d.kind, Kind::Extrude { direction: 2, .. });
     // Extrudes and moves go either way; radii and thicknesses stay positive.
-    let signed =
-        matches!(d.kind, Kind::Extrude { .. } | Kind::Move { .. } | Kind::Section { .. } | Kind::OffsetPlane { .. } | Kind::OffsetFaces { .. });
+    let signed = matches!(
+        d.kind,
+        Kind::Extrude { .. }
+            | Kind::Move { .. }
+            | Kind::Section { .. }
+            | Kind::OffsetPlane { .. }
+            | Kind::OffsetFaces { .. }
+            | Kind::SketchModify(crate::sketch_modify_ui::Mod::Move { .. })
+    );
     let focus = std::mem::take(&mut d.focus);
     let half_height = app.cam.half_height();
     let axis = revolve_axis(app, d);