std::unique_ptr<CPDF_Object> CPDF_FontEncoding::Realize( WeakPtr<ByteStringPool> pPool) { int predefined = 0; for (int cs = PDFFONT_ENCODING_WINANSI; cs < PDFFONT_ENCODING_ZAPFDINGBATS; cs++) { const uint16_t* pSrc = PDF_UnicodesForPredefinedCharSet(cs); bool match = true; for (size_t i = 0; i < FX_ArraySize(m_Unicodes); i++) { if (m_Unicodes[i] != pSrc[i]) { match = false; break; } } if (match) { predefined = cs; break; } } if (predefined) { const char* pName; if (predefined == PDFFONT_ENCODING_WINANSI) pName = "WinAnsiEncoding"; else if (predefined == PDFFONT_ENCODING_MACROMAN) pName = "MacRomanEncoding"; else if (predefined == PDFFONT_ENCODING_MACEXPERT) pName = "MacExpertEncoding"; else return nullptr; return pdfium::MakeUnique<CPDF_Name>(pPool, pName); } const uint16_t* pStandard = PDF_UnicodesForPredefinedCharSet(PDFFONT_ENCODING_WINANSI); auto pDiff = pdfium::MakeUnique<CPDF_Array>(); for (size_t i = 0; i < FX_ArraySize(m_Unicodes); i++) { if (pStandard[i] == m_Unicodes[i]) continue; pDiff->AddNew<CPDF_Number>(static_cast<int>(i)); pDiff->AddNew<CPDF_Name>(PDF_AdobeNameFromUnicode(m_Unicodes[i])); } auto pDict = pdfium::MakeUnique<CPDF_Dictionary>(pPool); pDict->SetNewFor<CPDF_Name>("BaseEncoding", "WinAnsiEncoding"); pDict->SetFor("Differences", std::move(pDiff)); return std::move(pDict); }
CPDF_FontEncoding::CPDF_FontEncoding(int PredefinedEncoding) { const uint16_t* pSrc = PDF_UnicodesForPredefinedCharSet(PredefinedEncoding); if (!pSrc) { memset(m_Unicodes, 0, sizeof(m_Unicodes)); } else { for (size_t i = 0; i < FX_ArraySize(m_Unicodes); i++) m_Unicodes[i] = pSrc[i]; } }
void CPDF_TrueTypeFont::LoadGlyphMap() { if (!m_Font.GetFace()) return; int baseEncoding = m_BaseEncoding; if (m_pFontFile && m_Font.GetFace()->num_charmaps > 0 && (baseEncoding == PDFFONT_ENCODING_MACROMAN || baseEncoding == PDFFONT_ENCODING_WINANSI) && (m_Flags & PDFFONT_SYMBOLIC)) { FX_BOOL bSupportWin = FALSE; FX_BOOL bSupportMac = FALSE; for (int i = 0; i < FXFT_Get_Face_CharmapCount(m_Font.GetFace()); i++) { int platform_id = FXFT_Get_Charmap_PlatformID( FXFT_Get_Face_Charmaps(m_Font.GetFace())[i]); if (platform_id == 0 || platform_id == 3) { bSupportWin = TRUE; } else if (platform_id == 0 || platform_id == 1) { bSupportMac = TRUE; } } if (baseEncoding == PDFFONT_ENCODING_WINANSI && !bSupportWin) { baseEncoding = bSupportMac ? PDFFONT_ENCODING_MACROMAN : PDFFONT_ENCODING_BUILTIN; } else if (baseEncoding == PDFFONT_ENCODING_MACROMAN && !bSupportMac) { baseEncoding = bSupportWin ? PDFFONT_ENCODING_WINANSI : PDFFONT_ENCODING_BUILTIN; } } if (((baseEncoding == PDFFONT_ENCODING_MACROMAN || baseEncoding == PDFFONT_ENCODING_WINANSI) && m_CharNames.empty()) || (m_Flags & PDFFONT_NONSYMBOLIC)) { if (!FXFT_Has_Glyph_Names(m_Font.GetFace()) && (!m_Font.GetFace()->num_charmaps || !m_Font.GetFace()->charmaps)) { int nStartChar = m_pFontDict->GetIntegerFor("FirstChar"); if (nStartChar < 0 || nStartChar > 255) return; int charcode = 0; for (; charcode < nStartChar; charcode++) { m_GlyphIndex[charcode] = 0; } uint16_t nGlyph = charcode - nStartChar + 3; for (; charcode < 256; charcode++, nGlyph++) { m_GlyphIndex[charcode] = nGlyph; } return; } bool bMSUnicode = FT_UseTTCharmap(m_Font.GetFace(), 3, 1); bool bMacRoman = false; bool bMSSymbol = false; if (!bMSUnicode) { if (m_Flags & PDFFONT_NONSYMBOLIC) { bMacRoman = FT_UseTTCharmap(m_Font.GetFace(), 1, 0); bMSSymbol = !bMacRoman && FT_UseTTCharmap(m_Font.GetFace(), 3, 0); } else { bMSSymbol = FT_UseTTCharmap(m_Font.GetFace(), 3, 0); bMacRoman = !bMSSymbol && FT_UseTTCharmap(m_Font.GetFace(), 1, 0); } } FX_BOOL bToUnicode = m_pFontDict->KeyExist("ToUnicode"); for (int charcode = 0; charcode < 256; charcode++) { const FX_CHAR* name = GetAdobeCharName(baseEncoding, m_CharNames, charcode); if (!name) { m_GlyphIndex[charcode] = m_pFontFile ? FXFT_Get_Char_Index(m_Font.GetFace(), charcode) : -1; continue; } m_Encoding.m_Unicodes[charcode] = PDF_UnicodeFromAdobeName(name); if (bMSSymbol) { for (size_t j = 0; j < FX_ArraySize(kPrefix); j++) { uint16_t unicode = kPrefix[j] * 256 + charcode; m_GlyphIndex[charcode] = FXFT_Get_Char_Index(m_Font.GetFace(), unicode); if (m_GlyphIndex[charcode]) { break; } } } else if (m_Encoding.m_Unicodes[charcode]) { if (bMSUnicode) { m_GlyphIndex[charcode] = FXFT_Get_Char_Index( m_Font.GetFace(), m_Encoding.m_Unicodes[charcode]); } else if (bMacRoman) { uint32_t maccode = FT_CharCodeFromUnicode( FXFT_ENCODING_APPLE_ROMAN, m_Encoding.m_Unicodes[charcode]); if (!maccode) { m_GlyphIndex[charcode] = FXFT_Get_Name_Index(m_Font.GetFace(), (char*)name); } else { m_GlyphIndex[charcode] = FXFT_Get_Char_Index(m_Font.GetFace(), maccode); } } } if ((m_GlyphIndex[charcode] == 0 || m_GlyphIndex[charcode] == 0xffff) && name) { if (name[0] == '.' && FXSYS_strcmp(name, ".notdef") == 0) { m_GlyphIndex[charcode] = FXFT_Get_Char_Index(m_Font.GetFace(), 32); } else { m_GlyphIndex[charcode] = FXFT_Get_Name_Index(m_Font.GetFace(), (char*)name); if (m_GlyphIndex[charcode] == 0) { if (bToUnicode) { CFX_WideString wsUnicode = UnicodeFromCharCode(charcode); if (!wsUnicode.IsEmpty()) { m_GlyphIndex[charcode] = FXFT_Get_Char_Index(m_Font.GetFace(), wsUnicode[0]); m_Encoding.m_Unicodes[charcode] = wsUnicode[0]; } } if (m_GlyphIndex[charcode] == 0) { m_GlyphIndex[charcode] = FXFT_Get_Char_Index(m_Font.GetFace(), charcode); } } } } } return; } if (FT_UseTTCharmap(m_Font.GetFace(), 3, 0)) { bool bFound = false; for (int charcode = 0; charcode < 256; charcode++) { for (size_t j = 0; j < FX_ArraySize(kPrefix); j++) { uint16_t unicode = kPrefix[j] * 256 + charcode; m_GlyphIndex[charcode] = FXFT_Get_Char_Index(m_Font.GetFace(), unicode); if (m_GlyphIndex[charcode]) { bFound = true; break; } } } if (bFound) { if (baseEncoding != PDFFONT_ENCODING_BUILTIN) { for (int charcode = 0; charcode < 256; charcode++) { const FX_CHAR* name = GetAdobeCharName(baseEncoding, m_CharNames, charcode); if (name) m_Encoding.m_Unicodes[charcode] = PDF_UnicodeFromAdobeName(name); } } else if (FT_UseTTCharmap(m_Font.GetFace(), 1, 0)) { for (int charcode = 0; charcode < 256; charcode++) { m_Encoding.m_Unicodes[charcode] = FT_UnicodeFromCharCode(FXFT_ENCODING_APPLE_ROMAN, charcode); } } return; } } if (FT_UseTTCharmap(m_Font.GetFace(), 1, 0)) { bool bFound = false; for (int charcode = 0; charcode < 256; charcode++) { m_GlyphIndex[charcode] = FXFT_Get_Char_Index(m_Font.GetFace(), charcode); m_Encoding.m_Unicodes[charcode] = FT_UnicodeFromCharCode(FXFT_ENCODING_APPLE_ROMAN, charcode); if (m_GlyphIndex[charcode]) { bFound = true; } } if (m_pFontFile || bFound) return; } if (FXFT_Select_Charmap(m_Font.GetFace(), FXFT_ENCODING_UNICODE) == 0) { bool bFound = false; const uint16_t* pUnicodes = PDF_UnicodesForPredefinedCharSet(baseEncoding); for (int charcode = 0; charcode < 256; charcode++) { if (m_pFontFile) { m_Encoding.m_Unicodes[charcode] = charcode; } else { const FX_CHAR* name = GetAdobeCharName(0, m_CharNames, charcode); if (name) m_Encoding.m_Unicodes[charcode] = PDF_UnicodeFromAdobeName(name); else if (pUnicodes) m_Encoding.m_Unicodes[charcode] = pUnicodes[charcode]; } m_GlyphIndex[charcode] = FXFT_Get_Char_Index( m_Font.GetFace(), m_Encoding.m_Unicodes[charcode]); if (m_GlyphIndex[charcode]) bFound = true; } if (bFound) return; } for (int charcode = 0; charcode < 256; charcode++) m_GlyphIndex[charcode] = charcode; }
FX_DWORD PDF_PredefinedCharCodeFromUnicode(int encoding, FX_WCHAR unicode) { return PDF_FindCode(PDF_UnicodesForPredefinedCharSet(encoding), unicode); }