Grom's report was "textures are not where they should be", and still wrong with OpenMapClassic
switched off — which is what made it ours rather than the addon's. His own session log had both
states 1.4 s apart, same map, same frame: detail 1431x954 with tiles 366x366 (correct, 1431/1002 =
1.428), then the same frame with tiles back at the XML's raw 256x256.
`ScaleDetailArt` was being handed the CANVAS's size by `OnCanvasSizeChanged`, on the assumption
that the detail frame is `SetAllPoints` to the canvas. 1.12's own windowed mode breaks that:
`WorldMapFrame_Minimize` puts `WORLDMAP_WINDOWED_SCALE` (0.7) on `WorldMapDetailFrame` and
`WorldMapButton` and insets the frame to TOPLEFT 15,-33, so the same screen area is a different
number of units in each — his trace reads `detail 1431x954 scale 0.56` inside `WorldMapCanvas
1002x668 scale 0.80`. Scaled by the canvas's number every tile came out 1.43x too small: the art
covered 1024x768 of a 1431x954 frame, the rest bare parchment, and the exploration overlays scaled
to match landed nowhere near their terrain.
The detail frame's own size is the authority, since the tiles are its children. `GetLeft()` first
to settle the layout, because that size is derived and an unforced read answers the size from
before the last change; the caller's w,h stay as the fallback for what cannot be measured.
Reproduced and controlled in the harness with the windowed scale applied as the stock code applies
it: tile 362 where 362 is wanted, against the control's 256 — the number his log recorded. Two
earlier attempts are written up in docs/ADDON_COMPAT.md as dead ends, because both looked right:
caching the canvas size prefers the wrong quantity, and converting it by the effective-scale ratio
gives 366 against a true 362, since Minimize also insets the frame.
`$WOW_CAPTURE_SAVED` now reaches the enable-state file too, so a capture reproduces which addons
the player has turned off — without which "I turned it off and it is still wrong" cannot be
answered offline at all.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SgstFWtn1RxEJ5kVrpgYwn
gromandClaude Opus 5
d11b9ac3ae