Files
SnapOtter/tests
SnapOtter 81e16d7ce6 fix(editor): capture document pixels without the zoom/pan transform (#259)
Every editor tool that reads or writes raster pixels exported the stage with `stage.toCanvas({ x: 0, y: 0, width, height })`, which bakes in the stage's zoom/pan transform. The captured buffer was the *viewport* (the document scaled and offset by the current zoom/pan), not the document in its own coordinate space, so tools sampled and wrote the wrong pixels: the paint bucket produced a misplaced black rectangle instead of flood-filling the click, the eyedropper read the wrong colour, the magic wand selected the wrong region, and PNG/clipboard export silently produced a scaled/offset image at any zoom other than 100%.

Add `captureDocumentCanvas()`, which normalizes the stage to the document size with an identity transform, renders, captures, and restores -- all synchronously, so there is no visible flicker. Route every pixel capture through it: fill, magic wand, clone stamp, eyedropper, dodge/burn, blur/sharpen/smudge, the adjustments histogram, and the exporter.

The 'rulers render as black bars' part of #259 was fixed in the preceding editor-layout change (#258).

Adds editor-tool-coordinates.spec.ts asserting the paint bucket fills at the clicked location.
2026-06-17 14:21:35 +08:00
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