- A copy Alt-dragged off a layer snaps to that layer too: its edges,
centres and equal spacing (Targets::add_box with the originals' box).
Before, the originals were left out of the snap targets, so a copy
couldn't line up with or space evenly from the layer it came from.
- Duplicate (Cmd+D) repeats the last duplicate's page offset while its
copies are what it duplicates: Alt-drag a copy, or Duplicate and move
the copy, then each Cmd+D steps out the next one as far again. The
step is measured when Duplicate runs. It lasts as long as the
selection (undo reuses ids), copies placed by an auto layout set no
step, and explicit dx/dy win.
- measure_tests: an Alt-dragged copy between its original and another
layer now snaps to equal spacing (45/45 instead of 50/40).
Tests: duplicate_spacing_tests (snap to the original, equal spacing,
repeat after moving a copy and after an Alt-drag, only for the last
copies, undo then a new layer, rotated frame, auto layout).
Refs #256
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
A behaviour suite for canvas navigation, rulers, guides, layout grids, outline mode and measuring
(`crates/engine/src/view_behaviour_tests.rs`, 18 tests, ~120 table rows and checks), written from
the public documentation with a one-line derivation per case; where the documentation is silent the
case says so and pins today's behaviour. Plus the fixes it found:
- **Pixel grid** shows from 400% (it waited for 800%). The threshold, pixel preview's resolution
and wheel panning (`ViewState::pixel_grid_shown`, `pixel_preview_scale`, `scroll`) now live in the
engine; the canvas calls them.
- **Guides belong to the page or a top-level frame.** A guide dropped over a nested frame goes to
the frame holding it (`guides::drop_owner`), `guide.add` refuses nested frames, and a frame moved
into another frame keeps its guides but they stop drawing, snapping and measuring.
- **Selecting guides:** a click selects a guide (`guide.select`, new command, Spanish label added);
Delete/Backspace removes it, the arrows across it nudge it (Shift: big nudge), Escape deselects;
right-click opens the context menu with Remove guide (`guide.remove` without an index removes the
selected guide). A click without a move no longer records an empty undo step.
- **Alt-drag** on a guide drops a copy; **holding Alt while dragging** a guide shows its distances
to the nearest edges inside the frame it crosses (`distance::from_guide`).
- **Layout grids:** columns/rows with a fixed width and count 0 are **Auto** (as many as fit; the
Count field shows Auto); grids don't show or snap on a **rotated frame**.
- **Outline mode:** shapes are hit on their outlines, so a click reaches layers drawn behind
(`geometry::hit_outlines`).
A selection and transform behaviour suite derived from public documentation, with fixes: Alt-resizing shrinks as well as grows; groups, Scale-constrained frames and multiple selections resize each layer along its own axes keeping rotation and flip; several layers flip together past an edge; a flipped layer reads back the typed rotation; resizes land on whole pixels with the pixel grid; presses inside tiny layers move them; locked layers get no handles; a marquee can start on a top-level frame's background; select inverse skips hidden layers. Adds equal-spacing snapping with labelled gaps and Cmd/Ctrl to ignore constraints while resizing a frame.
A rotated frame's guides run along its own axes and span only the frame
(drawn, hit-tested and dragged along them, with a cursor that follows the
line); a guide dropped from a ruler onto a turned frame converts the page
point into the frame's coordinates, along its axis nearer the ruler's.
Layers inside a rotated frame snap in its space: to its guides, edges,
layout grids and siblings along its axes, keeping whole pixels there.
New engine module `guides` (segment, offset_at, frame_axis, line_in);
measuring finds quarter-turned frames' guides too.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Measuring (Alt/Option): distances from the selection to the hovered layer,
its parent (over the selection itself or empty space) and ruler guides;
Cmd+Alt for nested layers; containment both ways, overlaps between matching
edges, gaps with dashed extension lines; rotated layers and several selected
layers by their bounds; the measured box outlined. Alt while dragging shows
live distances to the neighbours (or the parent's edges); Shift+Alt reads out
an auto layout frame's padding and gaps. Labels are placed so they never
overlap each other or the size label and stay the same size at every zoom.
Commands: measure.distances, measure.padding.
Scale tool (K) canvas handles: one factor about the Scale panel's anchor
(tool.scaleAnchor, shared by the panel and the canvas; the opposite handle when
the anchor is on the side being dragged), Alt from the centre, flips past the
pivot, rotated layers and lines along their own axes, one undo step per drag,
a live factor in the size label and the pivot marked. scale_node now also
scales min/max sizes, layout grids, guides, fixed grid tracks, tiled images,
paragraph indent and run letter spacing.
Selection: Cmd/Ctrl-marquee selects nested layers, Shift-marquee toggles,
the context menu's Select layer lists every layer under the click
(select.layersAt), outlines are purple for every layer inside components and
instances, hover outlines show with the Scale tool too. Fixed marquees
selecting layers that only overlapped the marquee on one axis.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Ruler guides can belong to a frame: `guide.add/move/remove/clear` take `frame` (as well as
`page`), keeping the guide in the frame's own coordinates. Frame guides move with the frame, span
only it on the canvas, are saved and copied with it, and snap the layers inside it. A guide dragged
out of a ruler and dropped on a frame becomes that frame's guide; its label shows the offset in the
frame.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
- Transform box around 2+ selected points (Move tool): corners/edges scale
them (Shift keeps proportions, Alt from the centre), just outside a corner
rotates them (Shift: 15° steps, the box turns with them), dragging inside
moves them; one undo step each. Corners win over points, points over edges,
edges over segments.
- Commands: vector.edit.bounds, vector.edit.resize, vector.edit.rotate,
vector.edit.transform; object.flipH/V and the 90°/180° rotations act on the
selected points while editing (unless ids are given).
- Design panel in edit mode: W/H for the selected points next to X/Y (the
layer's dimensions are hidden while points are selected).
- Point snapping for dragged points and handles and both pens: points and
segment midpoints of this and other vectors, the usual layer targets and
the pixel grid, with guides and a marker on the point landed on; Ctrl/Cmd
turns object snapping off. Snap code generalised in snap.rs (Targets spans).
- Fix: handle/bend drags read positions in the gesture snapshot's coordinates,
so handles no longer lag when the preview re-fits the vector.
- Shared resize math (tools::resized_box) and handle hit-testing for layer
and point boxes; canvas draws both boxes through one helper.
- Tests in vectoredit/transform_tests.rs (incl. junk sweep for the
edit-aware commands).
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
