* Clear, Cut and Image > Adjustments refuse a pixel-locked layer (#1103)
clear_area, destructive_adjust and auto_adjust took the layer's surface
directly. They now go through commands::paint_surface, which refuses a
pixel- or fully-locked layer with the same message painting uses.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* edit.cut: refuse a pixel-locked layer before filling the clipboard
copy() ran before clear_selected noticed the lock, so a refused Cut still
replaced the clipboard. Check the lock first (check_pixels_unlocked, shared
with paint_surface) and assert the clipboard is unchanged in the test.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: prekabreki <prekabreki@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
