j5j/dZddlmZddlZddlmZddlmZddlm Z m Z m Z ddl m Z ejeZGdd Zy) zMulti-font management for PDF rendering. Provides automatic font selection for multilingual documents based on language hints and glyph coverage analysis. ) annotationsN)Path) FontManager)BuiltinFontProviderChainedFontProvider FontProvider)SystemFontProviderc eZdZdZiddddddddddddd d d d d d d d dd dd dd ddddddddiddddddddddddddd d!d"d#d$d%d&d'd(d)d*d+d,d-d.d/d0d1d2d1d3d3d4d4d5d6d6d7d7d8d8d9 Zgd:Z dFd;d< dGd=ZedHd>Z dId?Z dJd@Z dKdAZ dLdBZ dMdCZ dNdDZdHdEZy;)OMultiFontManageraManages multiple fonts with automatic selection and fallback. This class orchestrates multiple FontManager instances to provide word-level font selection for multilingual documents. It uses a hybrid approach combining language hints from hOCR with glyph coverage analysis. Font selection strategy: 1. Try language-preferred font (if language hint available) 2. Try fallback fonts in order by glyph coverage 3. Fall back to Occulta.ttf (glyphless fallback) araNotoSansArabic-RegularperfasurdpuskurhinNotoSansDevanagari-RegularsanmarnepkokbhomaichiNotoSansCJK-Regularzhochi_simchi_trajpnkorthaNotoSansThai-RegularhebNotoSansHebrew-RegularyidbenNotoSansBengali-RegularasmtamNotoSansTamil-RegulargujNotoSansGujarati-RegulartelNotoSansTelugu-RegularkanNotoSansKannada-RegularmalNotoSansMalayalam-RegularmyaNotoSansMyanmar-RegularkhmNotoSansKhmer-RegularlaoNotoSansLao-RegularkatNotoSansGeorgian-RegulargeoNotoSansArmenian-RegularNotoSansEthiopic-RegularNotoSansSinhala-RegularNotoSansGurmukhi-RegularNotoSansOriya-RegularNotoSansTibetan-Regular) hyearmamhtirsinpanpnboriorybodtib)zNotoSans-Regularr rrr#r%r(r+r-r/r1r3r5r7r9r;r=r>r?r@rArBN) font_providerc|||_n#tt|tg|_i|_t |_y)aInitialize multi-font manager. Args: font_dir: Directory containing font files. If font_provider is not specified, this is passed to BuiltinFontProvider. font_provider: Provider for loading fonts. If None, uses a ChainedFontProvider that tries builtin fonts first, then searches system fonts. N)rNrrr _selection_cacheset_warned_scripts)selffont_dirrNs V/var/www/html/qr/venv/lib/python3.12/site-packages/ocrmypdf/font/multi_font_manager.py__init__zMultiFontManager.__init__sJ  $!.D "5'1&("D DF),c"|jS)z.Get all loaded fonts (backward compatibility).) get_all_fonts)rSs rUfontszMultiFontManager.fontss!!##rWc|jj|}|y|j||r||j|<|Sy)a0Try to use a font for the given word. Args: font_name: Name of font to try word_text: Text content to check cache_key: Cache key for storing successful result Returns: FontManager if font exists and has all glyphs, None otherwise N)rNget_font_has_all_glyphsrP)rS font_name word_text cache_keyfonts rU _try_fontzMultiFontManager._try_fontsJ!!**95 <   i 0/8D ! !) ,KrWc||f}||jvr.|j|}|jj|}|r|St}|rE||jvr7|j|}|j ||j |||x}r|S|jD] } | |vr|j | ||x}s|cS|j||d|j|<|jjS)aSelect appropriate font for a word. Uses a hybrid approach: 1. Language-based selection (if language hint available) 2. Ordered fallback through available fonts by glyph coverage 3. Final fallback to Occulta.ttf (glyphless) Args: word_text: The text content of the word line_language: Language code from hOCR (e.g., 'ara', 'eng') Returns: FontManager instance to use for rendering this word Occulta) rPrNr\rQLANGUAGE_FONT_MAPaddrbFALLBACK_FONTS_warn_missing_fontget_fallback_font) rSr_ line_languager` cached_namera tried_fonts preferredresultr^s rUselect_font_for_wordz%MultiFontManager.select_font_for_words" . -- -// :K%%..{;D #  ]d.D.DD..}=I OOI & 9iHHvH ,, IK' 9iHHvH    =9+4i(!!3355rWc"|r|nd}||jvrytd|Dsy|jj||r5||jvr'|j|}tj d||ytj dy)zyWarn user about missing font for non-Latin text. Only warns once per language/script to avoid log spam. unknownNc38K|]}t|dkDyw)N)ord).0cs rU z6MultiFontManager._warn_missing_font..s3A3q6C<3szkNo font found with glyphs for '%s' text. Install %s for better rendering. See https://fonts.google.com/notozsNo font found with glyphs for some text. Install Noto fonts for better rendering. See https://fonts.google.com/noto)rRanyrfrelogwarning)rSr_rjwarn_keyr^s rUrhz#MultiFontManager._warn_missing_fonts %2=y t++ + 333    * ]d.D.DD..}=I KK4   KK4 rWc|sy|j}|D]'}t|}|j|}||dk(s'yy)aCheck if a font has glyphs for all characters in text. Args: font: FontManager instance to check text: Text to verify coverage for Returns: True if font has real glyphs for all characters (not .notdef) TrF) get_hb_fontrtget_nominal_glyph)rSratexthb_fontchar codepointglyph_ids rUr]z MultiFontManager._has_all_glyphssT""$ DD I00;H8q=   rWc<|jj|duS)zCheck if a named font is available. Args: font_name: Name of font to check Returns: True if font is available N)rNr\)rSr^s rUhas_fontzMultiFontManager.has_font)s !!**95TAArWcb|jj|}|y|j||S)a Check if a named font has glyphs for all characters in text. Args: font_name: Name of font to check text: Text to verify coverage for Returns: True if font has real glyphs for all characters (not .notdef) F)rNr\r])rSr^rras rUhas_all_glyphszMultiFontManager.has_all_glyphs4s5!!**95 <##D$//rWci}|jjD]%}|jj|}|!|||<'|S)z{Get all loaded font managers. Returns: Dictionary mapping font names to FontManager instances )rNget_available_fontsr\)rSrnnameras rUrYzMultiFontManager.get_all_fontsCsS &&::< $D%%..t4D#t  $ rW)N)rTz Path | NonerNzFontProvider | None)returnzdict[str, FontManager])r^strr_rr`ztuple[str, str | None]rzFontManager | None)r_rrj str | Nonerr)r_rrjrrNone)rarrrrbool)r^rrr)r^rrrrr)__name__ __module__ __qualname____doc__rergrVpropertyrZrbrorhr]rrrYrWrUr r s C 'C 'C ' C ' C ' C 'C +C +C +C +C +C +C +C" $#C$ $%C& ('C( ()C* $+C, $-C0 %1C4 '5C6 '7C: (;C< (=C@ &ACD )ECH 'ICL (MCP *QCT (UCX &YC\ $]C` )aCb )cCf*)))())&&((ECNN6!%/.2 //+ />$$),9O *,6,6-7,6 ,6\ D. B 0 rWr )r __future__rloggingpathlibrocrmypdf.font.font_managerrocrmypdf.font.font_providerrrr"ocrmypdf.font.system_font_providerr getLoggerrryr rrWrUrsF #2 Bg!ttrW