mirror of
https://github.com/aphrody-labs/wordcraft.git
synced 2026-10-13 19:26:53 +00:00
e9a38a88ca
Windows metafiles (WMF, EMF), common for logos, crests and diagrams in older documents, couldn't be decoded and showed as grey boxes, on screen and in PDF. The new crate wordcraft-metafile (layer 1) reads them from the public [MS-WMF] and [MS-EMF] specifications into paths and bitmaps, and places them in a picture's box; render and pdf paint the result as vectors. It covers the drawing records Office pictures use (lines, polygons, curves, rectangles, ellipses, arcs, path brackets), pens and brushes, the mapping modes and world transforms, and bitmaps in DIB form with the usual raster operations. Input is treated as hostile: every read is bounded, and a byte budget caps what one picture may allocate. Not yet: text records (ExtTextOut) and EMF+ records are skipped, so a metafile whose content is mostly text shows only its lines and fills. docxide-pdf bench (365 documents, vs main + #135): the twelve documents with WMF/EMF pictures show them; the pictures are a small part of their pages, so the scores move little (Jaccard passes 208 -> 209, five documents up to 3 SSIM points better, none worse). Co-authored-by: Oliver Zieschang <4963183+naxvog@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>