gronod
f7099a9808
lpoptions -l only exposes the global quality list, so the picker offered every token for every media — the driver then rejected invalid pairs (e.g. Fast Economy on Premium Semigloss) at print time. Neither the Epson nor the Canon PPD carries standard *UIConstraints, so resolve the media-to-quality map from each driver's own data: Epson InkjetPrinter2 *EPIJUIConstraint forbid-rules in the machine bundle's PDEData.dat (non-media LHS terms evaluated against lpoptions defaults), Canon BJPrinter's binary cnb_<TableID>0.tbl record table via *CNIJNameTblPath/*CNIJTableID, and generic PPD *UIConstraints pairs. MediaQualityConstraints picks the first non-empty source and fails open — queues without constraint data keep the full list. PrinterCapabilities gains qualityIDsByMediaType plus filtered qualities(forMediaType:)/allowsQuality accessors; the view model exposes availableQualities, clamps the pick on media change / seeding / panel apply-back, and substitutes a stale quality defensively in makeRequest so an invalid pair can never reach the ticket.