| // Copyright 2016 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "core/fxge/cfx_fontmapper.h" |
| |
| #include <algorithm> |
| #include <memory> |
| #include <sstream> |
| #include <tuple> |
| #include <utility> |
| #include <vector> |
| |
| #include "core/fxcrt/fx_codepage.h" |
| #include "core/fxge/cfx_fontmgr.h" |
| #include "core/fxge/cfx_substfont.h" |
| #include "core/fxge/fx_font.h" |
| #include "core/fxge/systemfontinfo_iface.h" |
| #include "third_party/base/stl_util.h" |
| |
| namespace { |
| |
| const int kNumStandardFonts = 14; |
| |
| const char* const g_Base14FontNames[kNumStandardFonts] = { |
| "Courier", |
| "Courier-Bold", |
| "Courier-BoldOblique", |
| "Courier-Oblique", |
| "Helvetica", |
| "Helvetica-Bold", |
| "Helvetica-BoldOblique", |
| "Helvetica-Oblique", |
| "Times-Roman", |
| "Times-Bold", |
| "Times-BoldItalic", |
| "Times-Italic", |
| "Symbol", |
| "ZapfDingbats", |
| }; |
| |
| struct AltFontName { |
| const char* m_pName; // Raw, POD struct. |
| int m_Index; |
| }; |
| |
| const AltFontName g_AltFontNames[] = { |
| {"Arial", 4}, |
| {"Arial,Bold", 5}, |
| {"Arial,BoldItalic", 6}, |
| {"Arial,Italic", 7}, |
| {"Arial-Bold", 5}, |
| {"Arial-BoldItalic", 6}, |
| {"Arial-BoldItalicMT", 6}, |
| {"Arial-BoldMT", 5}, |
| {"Arial-Italic", 7}, |
| {"Arial-ItalicMT", 7}, |
| {"ArialBold", 5}, |
| {"ArialBoldItalic", 6}, |
| {"ArialItalic", 7}, |
| {"ArialMT", 4}, |
| {"ArialMT,Bold", 5}, |
| {"ArialMT,BoldItalic", 6}, |
| {"ArialMT,Italic", 7}, |
| {"ArialRoundedMTBold", 5}, |
| {"Courier", 0}, |
| {"Courier,Bold", 1}, |
| {"Courier,BoldItalic", 2}, |
| {"Courier,Italic", 3}, |
| {"Courier-Bold", 1}, |
| {"Courier-BoldOblique", 2}, |
| {"Courier-Oblique", 3}, |
| {"CourierBold", 1}, |
| {"CourierBoldItalic", 2}, |
| {"CourierItalic", 3}, |
| {"CourierNew", 0}, |
| {"CourierNew,Bold", 1}, |
| {"CourierNew,BoldItalic", 2}, |
| {"CourierNew,Italic", 3}, |
| {"CourierNew-Bold", 1}, |
| {"CourierNew-BoldItalic", 2}, |
| {"CourierNew-Italic", 3}, |
| {"CourierNewBold", 1}, |
| {"CourierNewBoldItalic", 2}, |
| {"CourierNewItalic", 3}, |
| {"CourierNewPS-BoldItalicMT", 2}, |
| {"CourierNewPS-BoldMT", 1}, |
| {"CourierNewPS-ItalicMT", 3}, |
| {"CourierNewPSMT", 0}, |
| {"CourierStd", 0}, |
| {"CourierStd-Bold", 1}, |
| {"CourierStd-BoldOblique", 2}, |
| {"CourierStd-Oblique", 3}, |
| {"Helvetica", 4}, |
| {"Helvetica,Bold", 5}, |
| {"Helvetica,BoldItalic", 6}, |
| {"Helvetica,Italic", 7}, |
| {"Helvetica-Bold", 5}, |
| {"Helvetica-BoldItalic", 6}, |
| {"Helvetica-BoldOblique", 6}, |
| {"Helvetica-Italic", 7}, |
| {"Helvetica-Oblique", 7}, |
| {"HelveticaBold", 5}, |
| {"HelveticaBoldItalic", 6}, |
| {"HelveticaItalic", 7}, |
| {"Symbol", 12}, |
| {"SymbolMT", 12}, |
| {"Times-Bold", 9}, |
| {"Times-BoldItalic", 10}, |
| {"Times-Italic", 11}, |
| {"Times-Roman", 8}, |
| {"TimesBold", 9}, |
| {"TimesBoldItalic", 10}, |
| {"TimesItalic", 11}, |
| {"TimesNewRoman", 8}, |
| {"TimesNewRoman,Bold", 9}, |
| {"TimesNewRoman,BoldItalic", 10}, |
| {"TimesNewRoman,Italic", 11}, |
| {"TimesNewRoman-Bold", 9}, |
| {"TimesNewRoman-BoldItalic", 10}, |
| {"TimesNewRoman-Italic", 11}, |
| {"TimesNewRomanBold", 9}, |
| {"TimesNewRomanBoldItalic", 10}, |
| {"TimesNewRomanItalic", 11}, |
| {"TimesNewRomanPS", 8}, |
| {"TimesNewRomanPS-Bold", 9}, |
| {"TimesNewRomanPS-BoldItalic", 10}, |
| {"TimesNewRomanPS-BoldItalicMT", 10}, |
| {"TimesNewRomanPS-BoldMT", 9}, |
| {"TimesNewRomanPS-Italic", 11}, |
| {"TimesNewRomanPS-ItalicMT", 11}, |
| {"TimesNewRomanPSMT", 8}, |
| {"TimesNewRomanPSMT,Bold", 9}, |
| {"TimesNewRomanPSMT,BoldItalic", 10}, |
| {"TimesNewRomanPSMT,Italic", 11}, |
| {"ZapfDingbats", 13}, |
| }; |
| |
| struct AltFontFamily { |
| const char* m_pFontName; // Raw, POD struct. |
| const char* m_pFontFamily; // Raw, POD struct. |
| }; |
| |
| const AltFontFamily g_AltFontFamilies[] = { |
| {"AGaramondPro", "Adobe Garamond Pro"}, |
| {"BankGothicBT-Medium", "BankGothic Md BT"}, |
| {"ForteMT", "Forte"}, |
| }; |
| |
| #if _FX_PLATFORM_ == _FX_PLATFORM_LINUX_ |
| const char kNarrowFamily[] = "LiberationSansNarrow"; |
| #elif _FX_PLATFORM_ == _FX_PLATFORM_ANDROID_ |
| const char kNarrowFamily[] = "RobotoCondensed"; |
| #else |
| const char kNarrowFamily[] = "ArialNarrow"; |
| #endif // _FX_PLATFORM_ == _FX_PLATFORM_LINUX_ |
| |
| ByteString TT_NormalizeName(const char* family) { |
| ByteString norm(family); |
| norm.Remove(' '); |
| norm.Remove('-'); |
| norm.Remove(','); |
| auto pos = norm.Find('+'); |
| if (pos.has_value() && pos.value() != 0) |
| norm = norm.Left(pos.value()); |
| norm.MakeLower(); |
| return norm; |
| } |
| |
| void GetFontFamily(uint32_t nStyle, ByteString* fontName) { |
| if (fontName->Contains("Script")) { |
| if (FontStyleIsBold(nStyle)) |
| *fontName = "ScriptMTBold"; |
| else if (fontName->Contains("Palace")) |
| *fontName = "PalaceScriptMT"; |
| else if (fontName->Contains("French")) |
| *fontName = "FrenchScriptMT"; |
| else if (fontName->Contains("FreeStyle")) |
| *fontName = "FreeStyleScript"; |
| return; |
| } |
| for (const auto& alternate : g_AltFontFamilies) { |
| if (fontName->Contains(alternate.m_pFontName)) { |
| *fontName = alternate.m_pFontFamily; |
| return; |
| } |
| } |
| } |
| |
| ByteString ParseStyle(const char* pStyle, int iLen, int iIndex) { |
| std::ostringstream buf; |
| if (!iLen || iLen <= iIndex) |
| return ByteString(buf); |
| while (iIndex < iLen) { |
| if (pStyle[iIndex] == ',') |
| break; |
| buf << pStyle[iIndex]; |
| ++iIndex; |
| } |
| return ByteString(buf); |
| } |
| |
| const struct FX_FontStyle { |
| const char* name; |
| size_t len; |
| uint32_t style; |
| } g_FontStyles[] = { |
| {"Bold", 4, FXFONT_BOLD}, |
| {"Italic", 6, FXFONT_ITALIC}, |
| {"BoldItalic", 10, FXFONT_BOLD | FXFONT_ITALIC}, |
| {"Reg", 3, FXFONT_NORMAL}, |
| {"Regular", 7, FXFONT_NORMAL}, |
| }; |
| |
| // <exists, index, length> |
| std::tuple<bool, uint32_t, size_t> GetStyleType(const ByteString& bsStyle, |
| bool bReverse) { |
| if (bsStyle.IsEmpty()) |
| return std::make_tuple(false, FXFONT_NORMAL, 0); |
| |
| for (int i = FX_ArraySize(g_FontStyles) - 1; i >= 0; --i) { |
| const FX_FontStyle* pStyle = g_FontStyles + i; |
| if (!pStyle || pStyle->len > bsStyle.GetLength()) |
| continue; |
| |
| if (bReverse) { |
| if (bsStyle.Right(pStyle->len).Compare(pStyle->name) == 0) |
| return std::make_tuple(true, pStyle->style, pStyle->len); |
| } else { |
| if (bsStyle.Left(pStyle->len).Compare(pStyle->name) == 0) |
| return std::make_tuple(true, pStyle->style, pStyle->len); |
| } |
| } |
| return std::make_tuple(false, FXFONT_NORMAL, 0); |
| } |
| |
| bool CheckSupportThirdPartFont(const ByteString& name, int* PitchFamily) { |
| if (name != "MyriadPro") |
| return false; |
| *PitchFamily &= ~FXFONT_FF_ROMAN; |
| return true; |
| } |
| |
| void UpdatePitchFamily(uint32_t flags, int* PitchFamily) { |
| if (FontStyleIsSerif(flags)) |
| *PitchFamily |= FXFONT_FF_ROMAN; |
| if (FontStyleIsScript(flags)) |
| *PitchFamily |= FXFONT_FF_SCRIPT; |
| if (FontStyleIsFixedPitch(flags)) |
| *PitchFamily |= FXFONT_FF_FIXEDPITCH; |
| } |
| |
| } // namespace |
| |
| CFX_FontMapper::CFX_FontMapper(CFX_FontMgr* mgr) |
| : m_bListLoaded(false), m_pFontMgr(mgr) { |
| m_MMFaces[0] = nullptr; |
| m_MMFaces[1] = nullptr; |
| memset(m_FoxitFaces, 0, sizeof(m_FoxitFaces)); |
| } |
| |
| CFX_FontMapper::~CFX_FontMapper() { |
| for (size_t i = 0; i < FX_ArraySize(m_FoxitFaces); ++i) { |
| if (m_FoxitFaces[i]) |
| FXFT_Done_Face(m_FoxitFaces[i]); |
| } |
| if (m_MMFaces[0]) |
| FXFT_Done_Face(m_MMFaces[0]); |
| if (m_MMFaces[1]) |
| FXFT_Done_Face(m_MMFaces[1]); |
| } |
| |
| void CFX_FontMapper::SetSystemFontInfo( |
| std::unique_ptr<SystemFontInfoIface> pFontInfo) { |
| if (!pFontInfo) |
| return; |
| |
| m_pFontInfo = std::move(pFontInfo); |
| } |
| |
| ByteString CFX_FontMapper::GetPSNameFromTT(void* hFont) { |
| if (!m_pFontInfo) |
| return ByteString(); |
| |
| uint32_t size = m_pFontInfo->GetFontData(hFont, kTableNAME, nullptr, 0); |
| if (!size) |
| return ByteString(); |
| |
| std::vector<uint8_t> buffer(size); |
| uint8_t* buffer_ptr = buffer.data(); |
| uint32_t bytes_read = |
| m_pFontInfo->GetFontData(hFont, kTableNAME, buffer_ptr, size); |
| return bytes_read == size ? GetNameFromTT(buffer_ptr, bytes_read, 6) |
| : ByteString(); |
| } |
| |
| void CFX_FontMapper::AddInstalledFont(const ByteString& name, int charset) { |
| if (!m_pFontInfo) |
| return; |
| |
| m_FaceArray.push_back({name, static_cast<uint32_t>(charset)}); |
| if (name == m_LastFamily) |
| return; |
| |
| bool bLocalized = std::any_of(name.begin(), name.end(), [](const char& c) { |
| return static_cast<uint8_t>(c) > 0x80; |
| }); |
| |
| if (bLocalized) { |
| void* hFont = m_pFontInfo->GetFont(name.c_str()); |
| if (!hFont) { |
| hFont = m_pFontInfo->MapFont(0, 0, FX_CHARSET_Default, 0, name.c_str()); |
| if (!hFont) |
| return; |
| } |
| |
| ByteString new_name = GetPSNameFromTT(hFont); |
| if (!new_name.IsEmpty()) |
| m_LocalizedTTFonts.push_back(std::make_pair(new_name, name)); |
| m_pFontInfo->DeleteFont(hFont); |
| } |
| m_InstalledTTFonts.push_back(name); |
| m_LastFamily = name; |
| } |
| |
| void CFX_FontMapper::LoadInstalledFonts() { |
| if (!m_pFontInfo || m_bListLoaded) |
| return; |
| |
| m_pFontInfo->EnumFontList(this); |
| m_bListLoaded = true; |
| } |
| |
| ByteString CFX_FontMapper::MatchInstalledFonts(const ByteString& norm_name) { |
| LoadInstalledFonts(); |
| int i; |
| for (i = pdfium::CollectionSize<int>(m_InstalledTTFonts) - 1; i >= 0; i--) { |
| ByteString norm1 = TT_NormalizeName(m_InstalledTTFonts[i].c_str()); |
| if (norm1 == norm_name) |
| return m_InstalledTTFonts[i]; |
| } |
| for (i = pdfium::CollectionSize<int>(m_LocalizedTTFonts) - 1; i >= 0; i--) { |
| ByteString norm1 = TT_NormalizeName(m_LocalizedTTFonts[i].first.c_str()); |
| if (norm1 == norm_name) |
| return m_LocalizedTTFonts[i].second; |
| } |
| return ByteString(); |
| } |
| |
| FXFT_Face CFX_FontMapper::UseInternalSubst(CFX_SubstFont* pSubstFont, |
| int iBaseFont, |
| int italic_angle, |
| int weight, |
| int pitch_family) { |
| if (iBaseFont < kNumStandardFonts) { |
| if (m_FoxitFaces[iBaseFont]) |
| return m_FoxitFaces[iBaseFont]; |
| Optional<pdfium::span<const uint8_t>> font_data = |
| m_pFontMgr->GetBuiltinFont(iBaseFont); |
| if (font_data.has_value()) { |
| m_FoxitFaces[iBaseFont] = m_pFontMgr->GetFixedFace(font_data.value(), 0); |
| return m_FoxitFaces[iBaseFont]; |
| } |
| } |
| pSubstFont->m_bFlagMM = true; |
| pSubstFont->m_ItalicAngle = italic_angle; |
| if (weight) |
| pSubstFont->m_Weight = weight; |
| if (FontFamilyIsRoman(pitch_family)) { |
| pSubstFont->m_Weight = pSubstFont->m_Weight * 4 / 5; |
| pSubstFont->m_Family = "Chrome Serif"; |
| if (!m_MMFaces[1]) { |
| m_MMFaces[1] = |
| m_pFontMgr->GetFixedFace(m_pFontMgr->GetBuiltinFont(14).value(), 0); |
| } |
| return m_MMFaces[1]; |
| } |
| pSubstFont->m_Family = "Chrome Sans"; |
| if (!m_MMFaces[0]) { |
| m_MMFaces[0] = |
| m_pFontMgr->GetFixedFace(m_pFontMgr->GetBuiltinFont(15).value(), 0); |
| } |
| return m_MMFaces[0]; |
| } |
| |
| FXFT_Face CFX_FontMapper::FindSubstFont(const ByteString& name, |
| bool bTrueType, |
| uint32_t flags, |
| int weight, |
| int italic_angle, |
| int WindowCP, |
| CFX_SubstFont* pSubstFont) { |
| if (weight == 0) |
| weight = FXFONT_FW_NORMAL; |
| |
| if (!(flags & FXFONT_USEEXTERNATTR)) { |
| weight = FXFONT_FW_NORMAL; |
| italic_angle = 0; |
| } |
| ByteString SubstName = name; |
| SubstName.Remove(' '); |
| if (bTrueType && name.GetLength() > 0 && name[0] == '@') |
| SubstName = name.Right(name.GetLength() - 1); |
| PDF_GetStandardFontName(&SubstName); |
| if (SubstName == "Symbol" && !bTrueType) { |
| pSubstFont->m_Family = "Chrome Symbol"; |
| pSubstFont->m_Charset = FX_CHARSET_Symbol; |
| return UseInternalSubst(pSubstFont, 12, italic_angle, weight, 0); |
| } |
| if (SubstName == "ZapfDingbats") { |
| pSubstFont->m_Family = "Chrome Dingbats"; |
| pSubstFont->m_Charset = FX_CHARSET_Symbol; |
| return UseInternalSubst(pSubstFont, 13, italic_angle, weight, 0); |
| } |
| int iBaseFont = 0; |
| ByteString family; |
| ByteString style; |
| bool bHasComma = false; |
| bool bHasHyphen = false; |
| { |
| Optional<size_t> pos = SubstName.Find(",", 0); |
| if (pos.has_value()) { |
| family = SubstName.Left(pos.value()); |
| PDF_GetStandardFontName(&family); |
| style = SubstName.Right(SubstName.GetLength() - (pos.value() + 1)); |
| bHasComma = true; |
| } else { |
| family = SubstName; |
| } |
| } |
| for (; iBaseFont < 12; iBaseFont++) { |
| if (family == ByteStringView(g_Base14FontNames[iBaseFont])) |
| break; |
| } |
| int PitchFamily = 0; |
| uint32_t nStyle = FXFONT_NORMAL; |
| bool bStyleAvail = false; |
| if (iBaseFont < 12) { |
| if ((iBaseFont % 4) == 1 || (iBaseFont % 4) == 2) |
| nStyle |= FXFONT_BOLD; |
| if ((iBaseFont % 4) / 2) |
| nStyle |= FXFONT_ITALIC; |
| if (iBaseFont < 4) |
| PitchFamily |= FXFONT_FF_FIXEDPITCH; |
| if (iBaseFont >= 8) |
| PitchFamily |= FXFONT_FF_ROMAN; |
| } else { |
| iBaseFont = kNumStandardFonts; |
| if (!bHasComma) { |
| Optional<size_t> pos = family.ReverseFind('-'); |
| if (pos.has_value()) { |
| style = family.Right(family.GetLength() - (pos.value() + 1)); |
| family = family.Left(pos.value()); |
| bHasHyphen = true; |
| } |
| } |
| if (!bHasHyphen) { |
| int nLen = family.GetLength(); |
| bool hasStyleType; |
| uint32_t styleType; |
| size_t len; |
| std::tie(hasStyleType, styleType, len) = GetStyleType(family, true); |
| if (hasStyleType) { |
| family = family.Left(nLen - len); |
| nStyle |= styleType; |
| } |
| } |
| UpdatePitchFamily(flags, &PitchFamily); |
| } |
| |
| const int old_weight = weight; |
| if (FontStyleIsBold(nStyle)) |
| weight = FXFONT_FW_BOLD; |
| |
| if (!style.IsEmpty()) { |
| int nLen = style.GetLength(); |
| const char* pStyle = style.c_str(); |
| int i = 0; |
| bool bFirstItem = true; |
| ByteString buf; |
| while (i < nLen) { |
| buf = ParseStyle(pStyle, nLen, i); |
| |
| bool hasStyleType; |
| uint32_t styleType; |
| size_t len; |
| std::tie(hasStyleType, styleType, len) = GetStyleType(buf, false); |
| if ((i && !bStyleAvail) || (!i && !hasStyleType)) { |
| family = SubstName; |
| iBaseFont = kNumStandardFonts; |
| break; |
| } |
| if (hasStyleType) |
| bStyleAvail = true; |
| |
| if (FontStyleIsBold(styleType)) { |
| // If we're already bold, then we're double bold, use special weight. |
| if (FontStyleIsBold(nStyle)) { |
| weight = FXFONT_FW_BOLD_BOLD; |
| } else { |
| weight = FXFONT_FW_BOLD; |
| nStyle |= FXFONT_BOLD; |
| } |
| |
| bFirstItem = false; |
| } |
| if (FontStyleIsItalic(styleType) && FontStyleIsBold(styleType)) { |
| nStyle |= FXFONT_ITALIC; |
| } else if (FontStyleIsItalic(styleType)) { |
| if (bFirstItem) { |
| nStyle |= FXFONT_ITALIC; |
| } else { |
| family = SubstName; |
| iBaseFont = kNumStandardFonts; |
| } |
| break; |
| } |
| i += buf.GetLength() + 1; |
| } |
| } |
| |
| if (!m_pFontInfo) { |
| return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight, |
| PitchFamily); |
| } |
| |
| int Charset = FX_CHARSET_ANSI; |
| if (WindowCP) |
| Charset = FX_GetCharsetFromCodePage(WindowCP); |
| else if (iBaseFont == kNumStandardFonts && FontStyleIsSymbolic(flags)) |
| Charset = FX_CHARSET_Symbol; |
| const bool bCJK = FX_CharSetIsCJK(Charset); |
| bool bItalic = FontStyleIsItalic(nStyle); |
| |
| GetFontFamily(nStyle, &family); |
| ByteString match = MatchInstalledFonts(TT_NormalizeName(family.c_str())); |
| if (match.IsEmpty() && family != SubstName && |
| (!bHasComma && (!bHasHyphen || (bHasHyphen && !bStyleAvail)))) { |
| match = MatchInstalledFonts(TT_NormalizeName(SubstName.c_str())); |
| } |
| if (match.IsEmpty() && iBaseFont >= kNumStandardFonts) { |
| if (!bCJK) { |
| if (!CheckSupportThirdPartFont(family, &PitchFamily)) { |
| bItalic = italic_angle != 0; |
| weight = old_weight; |
| } |
| Optional<size_t> pos = SubstName.Find("Narrow"); |
| if (pos.has_value() && pos.value() != 0) |
| family = kNarrowFamily; |
| pos = SubstName.Find("Condensed"); |
| if (pos.has_value() && pos.value() != 0) |
| family = kNarrowFamily; |
| } else { |
| pSubstFont->m_bSubstCJK = true; |
| if (nStyle) |
| pSubstFont->m_WeightCJK = nStyle ? weight : FXFONT_FW_NORMAL; |
| if (FontStyleIsItalic(nStyle)) |
| pSubstFont->m_bItalicCJK = true; |
| } |
| } else { |
| italic_angle = 0; |
| if (nStyle == FXFONT_NORMAL) |
| weight = FXFONT_FW_NORMAL; |
| } |
| |
| if (!match.IsEmpty() || iBaseFont < kNumStandardFonts) { |
| if (!match.IsEmpty()) |
| family = match; |
| if (iBaseFont < kNumStandardFonts) { |
| if (nStyle && !(iBaseFont % 4)) { |
| if (FontStyleIsBold(nStyle) && FontStyleIsItalic(nStyle)) |
| iBaseFont += 2; |
| else if (FontStyleIsBold(nStyle)) |
| iBaseFont += 1; |
| else if (FontStyleIsItalic(nStyle)) |
| iBaseFont += 3; |
| } |
| family = g_Base14FontNames[iBaseFont]; |
| } |
| } else if (FontStyleIsItalic(flags)) { |
| bItalic = true; |
| } |
| void* hFont = m_pFontInfo->MapFont(weight, bItalic, Charset, PitchFamily, |
| family.c_str()); |
| if (!hFont) { |
| if (bCJK) { |
| bItalic = italic_angle != 0; |
| weight = old_weight; |
| } |
| if (!match.IsEmpty()) { |
| hFont = m_pFontInfo->GetFont(match.c_str()); |
| if (!hFont) { |
| return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight, |
| PitchFamily); |
| } |
| } else { |
| if (Charset == FX_CHARSET_Symbol) { |
| #if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_ || \ |
| _FX_PLATFORM_ == _FX_PLATFORM_ANDROID_ |
| if (SubstName == "Symbol") { |
| pSubstFont->m_Family = "Chrome Symbol"; |
| pSubstFont->m_Charset = FX_CHARSET_Symbol; |
| return UseInternalSubst(pSubstFont, 12, italic_angle, old_weight, |
| PitchFamily); |
| } |
| #endif |
| return FindSubstFont(family, bTrueType, flags & ~FXFONT_SYMBOLIC, |
| weight, italic_angle, 0, pSubstFont); |
| } |
| if (Charset == FX_CHARSET_ANSI) { |
| return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight, |
| PitchFamily); |
| } |
| |
| auto it = |
| std::find_if(m_FaceArray.begin(), m_FaceArray.end(), |
| [Charset](const FaceData& face) { |
| return face.charset == static_cast<uint32_t>(Charset); |
| }); |
| if (it == m_FaceArray.end()) { |
| return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight, |
| PitchFamily); |
| } |
| hFont = m_pFontInfo->GetFont(it->name.c_str()); |
| } |
| } |
| if (!hFont) |
| return nullptr; |
| |
| m_pFontInfo->GetFaceName(hFont, &SubstName); |
| if (Charset == FX_CHARSET_Default) |
| m_pFontInfo->GetFontCharset(hFont, &Charset); |
| uint32_t ttc_size = m_pFontInfo->GetFontData(hFont, kTableTTCF, nullptr, 0); |
| uint32_t font_size = m_pFontInfo->GetFontData(hFont, 0, nullptr, 0); |
| if (font_size == 0 && ttc_size == 0) { |
| m_pFontInfo->DeleteFont(hFont); |
| return nullptr; |
| } |
| FXFT_Face face = nullptr; |
| if (ttc_size) |
| face = GetCachedTTCFace(hFont, kTableTTCF, ttc_size, font_size); |
| else |
| face = GetCachedFace(hFont, SubstName, weight, bItalic, font_size); |
| if (!face) { |
| m_pFontInfo->DeleteFont(hFont); |
| return nullptr; |
| } |
| pSubstFont->m_Family = SubstName; |
| pSubstFont->m_Charset = Charset; |
| bool bNeedUpdateWeight = false; |
| if (FXFT_Is_Face_Bold(face)) |
| bNeedUpdateWeight = weight != FXFONT_FW_BOLD; |
| else |
| bNeedUpdateWeight = weight != FXFONT_FW_NORMAL; |
| if (bNeedUpdateWeight) |
| pSubstFont->m_Weight = weight; |
| if (bItalic && !FXFT_Is_Face_Italic(face)) { |
| if (italic_angle == 0) |
| italic_angle = -12; |
| else if (abs(italic_angle) < 5) |
| italic_angle = 0; |
| pSubstFont->m_ItalicAngle = italic_angle; |
| } |
| m_pFontInfo->DeleteFont(hFont); |
| return face; |
| } |
| |
| int CFX_FontMapper::GetFaceSize() const { |
| return pdfium::CollectionSize<int>(m_FaceArray); |
| } |
| |
| bool CFX_FontMapper::IsBuiltinFace(const FXFT_Face face) const { |
| for (size_t i = 0; i < MM_FACE_COUNT; ++i) { |
| if (m_MMFaces[i] == face) |
| return true; |
| } |
| for (size_t i = 0; i < FOXIT_FACE_COUNT; ++i) { |
| if (m_FoxitFaces[i] == face) |
| return true; |
| } |
| return false; |
| } |
| |
| FXFT_Face CFX_FontMapper::GetCachedTTCFace(void* hFont, |
| const uint32_t tableTTCF, |
| uint32_t ttc_size, |
| uint32_t font_size) { |
| uint32_t checksum = 0; |
| { |
| uint8_t buffer[1024]; |
| m_pFontInfo->GetFontData(hFont, tableTTCF, buffer, sizeof(buffer)); |
| uint32_t* pBuffer = reinterpret_cast<uint32_t*>(buffer); |
| for (int i = 0; i < 256; i++) |
| checksum += pBuffer[i]; |
| } |
| uint8_t* pIgnore = nullptr; |
| FXFT_Face face = m_pFontMgr->GetCachedTTCFace(ttc_size, checksum, |
| ttc_size - font_size, &pIgnore); |
| if (face) |
| return face; |
| |
| std::unique_ptr<uint8_t, FxFreeDeleter> pFontData( |
| FX_Alloc(uint8_t, ttc_size)); |
| m_pFontInfo->GetFontData(hFont, tableTTCF, pFontData.get(), ttc_size); |
| return m_pFontMgr->AddCachedTTCFace(ttc_size, checksum, std::move(pFontData), |
| ttc_size, ttc_size - font_size); |
| } |
| |
| FXFT_Face CFX_FontMapper::GetCachedFace(void* hFont, |
| ByteString SubstName, |
| int weight, |
| bool bItalic, |
| uint32_t font_size) { |
| uint8_t* pIgnore = nullptr; |
| FXFT_Face face = |
| m_pFontMgr->GetCachedFace(SubstName, weight, bItalic, &pIgnore); |
| if (face) |
| return face; |
| |
| std::unique_ptr<uint8_t, FxFreeDeleter> pFontData( |
| FX_Alloc(uint8_t, font_size)); |
| m_pFontInfo->GetFontData(hFont, 0, pFontData.get(), font_size); |
| return m_pFontMgr->AddCachedFace(SubstName, weight, bItalic, |
| std::move(pFontData), font_size, |
| m_pFontInfo->GetFaceIndex(hFont)); |
| } |
| |
| int PDF_GetStandardFontName(ByteString* name) { |
| const auto* end = std::end(g_AltFontNames); |
| const auto* found = |
| std::lower_bound(std::begin(g_AltFontNames), end, name->c_str(), |
| [](const AltFontName& element, const char* name) { |
| return FXSYS_stricmp(element.m_pName, name) < 0; |
| }); |
| if (found == end || FXSYS_stricmp(found->m_pName, name->c_str())) |
| return -1; |
| |
| *name = g_Base14FontNames[found->m_Index]; |
| return found->m_Index; |
| } |
