- Replace whole-region Vec<f32> read_region/write_region in CutParts::new
with tile-parallel cut_piece + try_fill_surface/try_clear_surface,
sharing interior Arc<Tile> allocations in O(1) and activating the
solid_tile hole-fill fast path on Background and mask targets.
- Cache piece_bounds on CutParts so CutParts::place avoids scanning tile
content bounds on every drag frame.
- Parallelize composite_over across top tiles with Rayon and share fully
opaque top tiles by Arc<Tile> clone in O(1), preserving COW tile
identity for GPU canvas uploads.
- Parallelize Surface::translated across target tiles with Rayon and
prune cleared tiles in-place inside edit_tiles.
- Skip zero-offset floating preview generation on pointer-down in
move_ui::floating_doc.
- Exclude SnapKind::Selection when moving selected pixels with the Move
tool so small initial drags do not snap back to (0, 0).
- Keep navigator_plain active during Move/Brush/Patch drags on a GPU
canvas so navigator_gpu is not evicted into a synchronous full-document
CPU thumbnail composite on the first drag frame.
- Parallelize row normalization in compose::render_reduced_in_bands and
add a direct read_rgba_into fast path for unmasked Normal layers over
an empty backdrop.
- Step Backward in the History panel puts a floating selection back like Edit > Undo; Step
Forward and Edit > Redo put it back and step instead of dropping it first (which recorded a
Move and wiped the redo states); with nothing to step to the piece keeps floating.
- Memory figures and the byte budget count the states Clear History keeps for its undo.
- Undoing Clear History keeps a saved document clean.
- New Snapshot... in the panel menu runs history.newSnapshot.
- Tests: Clear on one document leaves the others alone, and each fix above.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Move tool moves the selected pixels when there is a selection (#578)
With a selection, a Move-tool drag (from anywhere) or arrow-key nudge now
floats the active layer's selected pixels (select.float) instead of moving
the whole layer: the hole is transparent, or the background colour on the
Background layer; Alt copies the pixels instead of duplicating the layer;
Shift constrains the drag to 45 degrees; Enter, Deselect or any other
command drops the piece as one "Move" history step. Layers whose pixels
can't float (type, shape, smart object, group, position-locked, hidden, or
several selected layers) and Auto-Select without a selection behave as
before. select.float gains "copy"; a click that moves nothing no longer
leaves a floating piece behind.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Pipette cursor test: Windows draws the precise crosshair itself
input_tests::eyedropper_and_alt_sampling_show_a_pipette (#1028) expected
the OS crosshair with Other Cursors = Precise, but on Windows the canvas
draws its own crosshair and hides the OS cursor (visible_crosshair), so
the test failed on every Windows run.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UHgFEHEsefoQoBParH47JA
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* Selection drags: ⌘⌥-drag floats a copy; ⌘-drag with the Polygonal Lasso and Magic Wand
- `select.float {"copy": true}` floats a duplicate of the selected pixels
and leaves the originals in the layer; ⌘⌥-drag inside the selection uses
it (⌘-drag still cuts).
- ⌘-drag inside the selection now also floats it with the Polygonal Lasso
and the Magic Wand (not while a polygon is being drawn); a plain press
there still places a point / samples, so only ⌘ moves the selection.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* ⌘ / ⌘⌥ with a selection always cut / copy and drag it, never combine selections
With a selection tool and an active selection, a ⌘ or ⌘⌥ press anywhere (not
only inside the ants) floats the selected pixels (cut, or copy with ⌥) and
drags them; ⌥ no longer turns it into a subtract. The cursor shows no
selection-mode badge while ⌘ is held over a selection.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* ⌘ with a selection tool moves the layer outside the selection; ⌘⌥ duplicates it
With a selection tool, ⌘ acts as the Move tool for the drag: inside the
selection it cuts the selected pixels (⌘⌥ copies them), and outside the
selection, or without one, it moves the whole layer; ⌘⌥ duplicates the
layer first and moves the copy. ⌘ never combines selections, so the cursor
shows no add / subtract badge while it is held.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* ⌘ outside the selection moves the layer, not the selected pixels
Only a ⌘ press inside the selection floats its pixels; outside it the layer
moves (`command_moves_layer`). Drops the duplicate badge check.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* ⌘⌥-drag on a floating piece drops it and drags a copy
A floating piece (from a ⌘ cut-drag) dragged again with ⌘⌥ is dropped where
it is and a copy of it floats with the pointer, as ⌘⌥ does on any selection.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Jason Short <3344856+jason4short@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Engine (scripts, the control channel and agents can drive it):
- `select.float {"dx","dy"}`: cuts the selected pixels of the active layer
into a floating piece the first time, then moves it by whole pixels.
The document is unchanged while it floats (`DocState::floating`);
`float_cmds::displayed` gives the document with the piece at its offset.
- `select.drop`: drops the piece into its layer and moves the selection
with it, one history step ("Move Selected Pixels").
- Any other command drops a floating piece first (a hook at the top of
dispatch, so it lands where it was shown); Undo puts it back instead.
- The layer is split once, only inside the selection, and the piece is
cropped to it: placing it costs the piece, not the layer (6000×4000
layer, 500×400 piece: 18 ms to cut, under 5 ms per move).
Canvas (Marquee / Lasso):
- A drag inside the ants moves the outline (`select.transformSelection`);
a click inside without moving deselects; ⇧ / ⌥ drags still draw.
- ⌘-drag floats the selected pixels and shows them at the pointer live;
plain drags on the piece move it again; a press elsewhere drops it.
- A move cursor over the ants; the ants follow the dragged / floating piece.
Co-authored-by: Jason Short <3344856+jason4short@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
skylar taylor-barrick