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feat(ole): render EMF/WMF OLE presentations

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OLE2FRAME entities whose compound file carries a metafile presentation
(Excel/Word previews, scanned WMF pages) drew only their border frame —
the old decoder scanned the raw blob for a contiguous BMP, which the
CFB sector layout almost never provides. acadrust now extracts the
picture bytes tagged by kind; the new scene/model/gdi player rasterizes
EMF and WMF record streams on the CPU (pens/brushes, polygons, paths,
DIB blits, clipping, transforms) with text drawn through the existing
system-font glyph cache, and image_model feeds the result into the
raster pipeline. Rasters (BMP/PNG/JPEG/GIF, CF_DIB) decode as before
via the image crate.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-07-21 01:23:31 +03:00
commit e8411c1b6d
10 changed files with 2088 additions and 42 deletions
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@ -73,7 +73,7 @@ checksum = "366ffbaa4442f4684d91e2cd7c5ea7c4ed8add41959a31447066e279e432b618"
[[package]]
name = "acadrust"
version = "0.4.0"
source = "git+https://github.com/OpenAEC-Foundation/acadifc?branch=main#6ddff17beca4413df1bad0d441eff9d6aaad298b"
source = "git+https://github.com/OpenAEC-Foundation/acadifc?branch=main#733d6f5d9c876d881baa3badc5c8297928cb923c"
dependencies = [
"ahash 0.8.12",
"anyhow",