FX_DWORD CFX_UnicodeEncodingEx::GlyphFromCharCode(FX_DWORD charcode) {
FXFT_Face face = m_pFont->GetFace();
FT_UInt nIndex = FXFT_Get_Char_Index(face, charcode);
if (nIndex > 0) {
return nIndex;
}
int nmaps = FXFT_Get_Face_CharmapCount(face);
int m = 0;
while (m < nmaps) {
int nEncodingID =
FXFT_Get_Charmap_Encoding(FXFT_Get_Face_Charmaps(face)[m++]);
if (m_nEncodingID == nEncodingID) {
continue;
}
int error = FXFT_Select_Charmap(face, nEncodingID);
if (error) {
continue;
}
nIndex = FXFT_Get_Char_Index(face, charcode);
if (nIndex > 0) {
m_nEncodingID = nEncodingID;
return nIndex;
}
}
FXFT_Select_Charmap(face, m_nEncodingID);
return 0;
}
uint32_t CFX_UnicodeEncodingEx::CharCodeFromUnicode(FX_WCHAR Unicode) const {
if (m_nEncodingID == FXFM_ENCODING_UNICODE ||
m_nEncodingID == FXFM_ENCODING_MS_SYMBOL) {
return Unicode;
}
FXFT_Face face = m_pFont->GetFace();
int nmaps = FXFT_Get_Face_CharmapCount(face);
for (int i = 0; i < nmaps; i++) {
int nEncodingID =
FXFT_Get_Charmap_Encoding(FXFT_Get_Face_Charmaps(face)[i]);
if (nEncodingID == FXFM_ENCODING_UNICODE ||
nEncodingID == FXFM_ENCODING_MS_SYMBOL) {
return Unicode;
}
}
return CPDF_Font::kInvalidCharCode;
}
FX_DWORD CFX_UnicodeEncoding::GlyphFromCharCodeEx(FX_DWORD charcode, int encoding)
{
FXFT_Face face = m_pFont->GetFace();
if (!face) {
return charcode;
}
if (encoding == ENCODING_UNICODE) {
return GlyphFromCharCode(charcode);
} else {
int nmaps = FXFT_Get_Face_CharmapCount(m_pFont->m_Face);
int i = 0;
while (i < nmaps) {
int encoding = FXFT_Get_Charmap_Encoding(FXFT_Get_Face_Charmaps(face)[i++]);
if (encoding != FXFT_ENCODING_UNICODE) {
FXFT_Select_Charmap(face, encoding);
break;
}
}
}
return FXFT_Get_Char_Index(face, charcode);
}
int CPDF_CIDFont::GlyphFromCharCode(uint32_t charcode, bool* pVertGlyph) {
if (pVertGlyph)
*pVertGlyph = false;
if (!m_pFontFile && !m_pStreamAcc) {
uint16_t cid = CIDFromCharCode(charcode);
FX_WCHAR unicode = 0;
if (m_bCIDIsGID) {
#if _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_
return cid;
#else
if (m_Flags & FXFONT_SYMBOLIC)
return cid;
CFX_WideString uni_str = UnicodeFromCharCode(charcode);
if (uni_str.IsEmpty())
return cid;
unicode = uni_str.GetAt(0);
#endif
} else {
if (cid && m_pCID2UnicodeMap && m_pCID2UnicodeMap->IsLoaded())
unicode = m_pCID2UnicodeMap->UnicodeFromCID(cid);
if (unicode == 0)
unicode = GetUnicodeFromCharCode(charcode);
if (unicode == 0) {
CFX_WideString unicode_str = UnicodeFromCharCode(charcode);
if (!unicode_str.IsEmpty())
unicode = unicode_str.GetAt(0);
}
}
FXFT_Face face = m_Font.GetFace();
if (unicode == 0) {
if (!m_bAdobeCourierStd)
return charcode ? static_cast<int>(charcode) : -1;
charcode += 31;
bool bMSUnicode = FT_UseTTCharmap(face, 3, 1);
bool bMacRoman = !bMSUnicode && FT_UseTTCharmap(face, 1, 0);
int iBaseEncoding = PDFFONT_ENCODING_STANDARD;
if (bMSUnicode)
iBaseEncoding = PDFFONT_ENCODING_WINANSI;
else if (bMacRoman)
iBaseEncoding = PDFFONT_ENCODING_MACROMAN;
const FX_CHAR* name = GetAdobeCharName(
iBaseEncoding, std::vector<CFX_ByteString>(), charcode);
if (!name)
return charcode ? static_cast<int>(charcode) : -1;
int index = 0;
uint16_t name_unicode = PDF_UnicodeFromAdobeName(name);
if (!name_unicode)
return charcode ? static_cast<int>(charcode) : -1;
if (iBaseEncoding == PDFFONT_ENCODING_STANDARD)
return FXFT_Get_Char_Index(face, name_unicode);
if (iBaseEncoding == PDFFONT_ENCODING_WINANSI) {
index = FXFT_Get_Char_Index(face, name_unicode);
} else {
ASSERT(iBaseEncoding == PDFFONT_ENCODING_MACROMAN);
uint32_t maccode =
FT_CharCodeFromUnicode(FXFT_ENCODING_APPLE_ROMAN, name_unicode);
index = maccode ? FXFT_Get_Char_Index(face, maccode)
: FXFT_Get_Name_Index(face, const_cast<char*>(name));
}
if (index == 0 || index == 0xffff)
return charcode ? static_cast<int>(charcode) : -1;
return index;
}
if (m_Charset == CIDSET_JAPAN1) {
if (unicode == '\\') {
unicode = '/';
#if _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_
} else if (unicode == 0xa5) {
unicode = 0x5c;
#endif
}
}
if (!face)
return unicode;
int err = FXFT_Select_Charmap(face, FXFT_ENCODING_UNICODE);
if (err) {
int i;
for (i = 0; i < FXFT_Get_Face_CharmapCount(face); i++) {
uint32_t ret = FT_CharCodeFromUnicode(
FXFT_Get_Charmap_Encoding(FXFT_Get_Face_Charmaps(face)[i]),
static_cast<FX_WCHAR>(charcode));
if (ret == 0)
continue;
FXFT_Set_Charmap(face, FXFT_Get_Face_Charmaps(face)[i]);
unicode = static_cast<FX_WCHAR>(ret);
break;
}
if (i == FXFT_Get_Face_CharmapCount(face) && i) {
FXFT_Set_Charmap(face, FXFT_Get_Face_Charmaps(face)[0]);
unicode = static_cast<FX_WCHAR>(charcode);
}
}
if (FXFT_Get_Face_Charmap(face)) {
int index = GetGlyphIndex(unicode, pVertGlyph);
return index != 0 ? index : -1;
}
return unicode;
}
if (!m_Font.GetFace())
return -1;
uint16_t cid = CIDFromCharCode(charcode);
if (!m_pStreamAcc) {
if (m_bType1)
return cid;
if (m_pFontFile && !m_pCMap->m_pMapping)
return cid;
if (m_pCMap->m_Coding == CIDCODING_UNKNOWN ||
!FXFT_Get_Face_Charmap(m_Font.GetFace())) {
return cid;
}
if (FXFT_Get_Charmap_Encoding(FXFT_Get_Face_Charmap(m_Font.GetFace())) ==
FXFT_ENCODING_UNICODE) {
CFX_WideString unicode_str = UnicodeFromCharCode(charcode);
if (unicode_str.IsEmpty())
return -1;
charcode = unicode_str.GetAt(0);
}
return GetGlyphIndex(charcode, pVertGlyph);
}
uint32_t byte_pos = cid * 2;
if (byte_pos + 2 > m_pStreamAcc->GetSize())
return -1;
const uint8_t* pdata = m_pStreamAcc->GetData() + byte_pos;
return pdata[0] * 256 + pdata[1];
}
