| // Copyright 2014 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/fpdfapi/fpdf_font/font_int.h" |
| |
| #include "core/fpdfapi/fpdf_page/include/cpdf_form.h" |
| #include "core/fpdfapi/fpdf_page/pageint.h" |
| #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h" |
| #include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h" |
| #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h" |
| #include "core/fpdfapi/fpdf_parser/include/cpdf_name.h" |
| #include "core/fpdfapi/fpdf_parser/include/cpdf_number.h" |
| #include "core/fpdfapi/fpdf_parser/include/cpdf_simple_parser.h" |
| #include "core/fpdfapi/include/cpdf_modulemgr.h" |
| #include "core/include/fpdfapi/fpdf_pageobj.h" |
| #include "core/include/fpdfapi/fpdf_resource.h" |
| #include "core/include/fxcrt/fx_ext.h" |
| #include "core/include/fxge/fx_freetype.h" |
| #include "third_party/base/stl_util.h" |
| |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| #include "core/fxge/apple/apple_int.h" |
| #endif |
| |
| namespace { |
| |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| struct GlyphNameMap { |
| const FX_CHAR* m_pStrAdobe; |
| const FX_CHAR* m_pStrUnicode; |
| }; |
| |
| const GlyphNameMap g_GlyphNameSubsts[] = {{"ff", "uniFB00"}, |
| {"fi", "uniFB01"}, |
| {"fl", "uniFB02"}, |
| {"ffi", "uniFB03"}, |
| {"ffl", "uniFB04"}}; |
| |
| int compareString(const void* key, const void* element) { |
| return FXSYS_stricmp((const FX_CHAR*)key, |
| ((GlyphNameMap*)element)->m_pStrAdobe); |
| } |
| |
| const FX_CHAR* GlyphNameRemap(const FX_CHAR* pStrAdobe) { |
| GlyphNameMap* found = (GlyphNameMap*)FXSYS_bsearch( |
| pStrAdobe, g_GlyphNameSubsts, |
| sizeof(g_GlyphNameSubsts) / sizeof(GlyphNameMap), sizeof(GlyphNameMap), |
| compareString); |
| if (found) |
| return found->m_pStrUnicode; |
| return NULL; |
| } |
| #endif |
| |
| const uint8_t ChineseFontNames[][5] = {{0xCB, 0xCE, 0xCC, 0xE5, 0x00}, |
| {0xBF, 0xAC, 0xCC, 0xE5, 0x00}, |
| {0xBA, 0xDA, 0xCC, 0xE5, 0x00}, |
| {0xB7, 0xC2, 0xCB, 0xCE, 0x00}, |
| {0xD0, 0xC2, 0xCB, 0xCE, 0x00}}; |
| |
| FX_BOOL GetPredefinedEncoding(int& basemap, const CFX_ByteString& value) { |
| if (value == "WinAnsiEncoding") { |
| basemap = PDFFONT_ENCODING_WINANSI; |
| } else if (value == "MacRomanEncoding") { |
| basemap = PDFFONT_ENCODING_MACROMAN; |
| } else if (value == "MacExpertEncoding") { |
| basemap = PDFFONT_ENCODING_MACEXPERT; |
| } else if (value == "PDFDocEncoding") { |
| basemap = PDFFONT_ENCODING_PDFDOC; |
| } else { |
| return FALSE; |
| } |
| return TRUE; |
| } |
| |
| FX_BOOL FT_UseType1Charmap(FXFT_Face face) { |
| if (FXFT_Get_Face_CharmapCount(face) == 0) { |
| return FALSE; |
| } |
| if (FXFT_Get_Face_CharmapCount(face) == 1 && |
| FXFT_Get_Charmap_Encoding(FXFT_Get_Face_Charmaps(face)[0]) == |
| FXFT_ENCODING_UNICODE) { |
| return FALSE; |
| } |
| if (FXFT_Get_Charmap_Encoding(FXFT_Get_Face_Charmaps(face)[0]) == |
| FXFT_ENCODING_UNICODE) { |
| FXFT_Set_Charmap(face, FXFT_Get_Face_Charmaps(face)[1]); |
| } else { |
| FXFT_Set_Charmap(face, FXFT_Get_Face_Charmaps(face)[0]); |
| } |
| return TRUE; |
| } |
| |
| } // namespace |
| |
| FX_BOOL FT_UseTTCharmap(FXFT_Face face, int platform_id, int encoding_id) { |
| for (int i = 0; i < FXFT_Get_Face_CharmapCount(face); i++) { |
| if (FXFT_Get_Charmap_PlatformID(FXFT_Get_Face_Charmaps(face)[i]) == |
| platform_id && |
| FXFT_Get_Charmap_EncodingID(FXFT_Get_Face_Charmaps(face)[i]) == |
| encoding_id) { |
| FXFT_Set_Charmap(face, FXFT_Get_Face_Charmaps(face)[i]); |
| return TRUE; |
| } |
| } |
| return FALSE; |
| } |
| |
| CFX_StockFontArray::CFX_StockFontArray() {} |
| |
| CFX_StockFontArray::~CFX_StockFontArray() { |
| for (size_t i = 0; i < FX_ArraySize(m_StockFonts); ++i) { |
| if (!m_StockFonts[i]) |
| continue; |
| CPDF_Dictionary* pFontDict = m_StockFonts[i]->GetFontDict(); |
| if (pFontDict) |
| pFontDict->Release(); |
| } |
| } |
| |
| CPDF_Font* CFX_StockFontArray::GetFont(int index) const { |
| if (index < 0 || index >= FX_ArraySize(m_StockFonts)) |
| return nullptr; |
| return m_StockFonts[index].get(); |
| } |
| |
| void CFX_StockFontArray::SetFont(int index, CPDF_Font* font) { |
| if (index < 0 || index >= FX_ArraySize(m_StockFonts)) |
| return; |
| m_StockFonts[index].reset(font); |
| } |
| |
| CPDF_FontGlobals::CPDF_FontGlobals() { |
| FXSYS_memset(m_EmbeddedCharsets, 0, sizeof(m_EmbeddedCharsets)); |
| FXSYS_memset(m_EmbeddedToUnicodes, 0, sizeof(m_EmbeddedToUnicodes)); |
| } |
| |
| CPDF_FontGlobals::~CPDF_FontGlobals() {} |
| |
| CPDF_Font* CPDF_FontGlobals::Find(CPDF_Document* pDoc, int index) { |
| auto it = m_StockMap.find(pDoc); |
| if (it == m_StockMap.end()) |
| return nullptr; |
| return it->second ? it->second->GetFont(index) : nullptr; |
| } |
| |
| void CPDF_FontGlobals::Set(CPDF_Document* pDoc, int index, CPDF_Font* pFont) { |
| if (!pdfium::ContainsKey(m_StockMap, pDoc)) |
| m_StockMap[pDoc].reset(new CFX_StockFontArray); |
| m_StockMap[pDoc]->SetFont(index, pFont); |
| } |
| |
| void CPDF_FontGlobals::Clear(CPDF_Document* pDoc) { |
| m_StockMap.erase(pDoc); |
| } |
| |
| CPDF_Font::CPDF_Font() |
| : m_pFontFile(nullptr), |
| m_pFontDict(nullptr), |
| m_pToUnicodeMap(nullptr), |
| m_bToUnicodeLoaded(FALSE), |
| m_Flags(0), |
| m_StemV(0), |
| m_Ascent(0), |
| m_Descent(0), |
| m_ItalicAngle(0) {} |
| |
| CPDF_Font::~CPDF_Font() { |
| delete m_pToUnicodeMap; |
| m_pToUnicodeMap = NULL; |
| |
| if (m_pFontFile) { |
| m_pDocument->GetPageData()->ReleaseFontFileStreamAcc( |
| const_cast<CPDF_Stream*>(m_pFontFile->GetStream()->AsStream())); |
| } |
| } |
| |
| bool CPDF_Font::IsType1Font() const { |
| return false; |
| } |
| |
| bool CPDF_Font::IsTrueTypeFont() const { |
| return false; |
| } |
| |
| bool CPDF_Font::IsType3Font() const { |
| return false; |
| } |
| |
| bool CPDF_Font::IsCIDFont() const { |
| return false; |
| } |
| |
| const CPDF_Type1Font* CPDF_Font::AsType1Font() const { |
| return nullptr; |
| } |
| |
| CPDF_Type1Font* CPDF_Font::AsType1Font() { |
| return nullptr; |
| } |
| |
| const CPDF_TrueTypeFont* CPDF_Font::AsTrueTypeFont() const { |
| return nullptr; |
| } |
| |
| CPDF_TrueTypeFont* CPDF_Font::AsTrueTypeFont() { |
| return nullptr; |
| } |
| |
| const CPDF_Type3Font* CPDF_Font::AsType3Font() const { |
| return nullptr; |
| } |
| |
| CPDF_Type3Font* CPDF_Font::AsType3Font() { |
| return nullptr; |
| } |
| |
| const CPDF_CIDFont* CPDF_Font::AsCIDFont() const { |
| return nullptr; |
| } |
| |
| CPDF_CIDFont* CPDF_Font::AsCIDFont() { |
| return nullptr; |
| } |
| |
| FX_BOOL CPDF_Font::IsUnicodeCompatible() const { |
| return FALSE; |
| } |
| |
| int CPDF_Font::CountChar(const FX_CHAR* pString, int size) const { |
| return size; |
| } |
| |
| int CPDF_Font::GetCharSize(FX_DWORD charcode) const { |
| return 1; |
| } |
| |
| int CPDF_Font::GlyphFromCharCode(FX_DWORD charcode, FX_BOOL* pVertGlyph) { |
| ASSERT(false); |
| return 0; |
| } |
| |
| int CPDF_Font::GlyphFromCharCodeExt(FX_DWORD charcode) { |
| return GlyphFromCharCode(charcode); |
| } |
| |
| FX_BOOL CPDF_Font::IsVertWriting() const { |
| FX_BOOL bVertWriting = FALSE; |
| const CPDF_CIDFont* pCIDFont = AsCIDFont(); |
| if (pCIDFont) { |
| bVertWriting = pCIDFont->IsVertWriting(); |
| } else { |
| bVertWriting = m_Font.IsVertical(); |
| } |
| return bVertWriting; |
| } |
| |
| int CPDF_Font::AppendChar(FX_CHAR* buf, FX_DWORD charcode) const { |
| *buf = (FX_CHAR)charcode; |
| return 1; |
| } |
| |
| void CPDF_Font::AppendChar(CFX_ByteString& str, FX_DWORD charcode) const { |
| char buf[4]; |
| int len = AppendChar(buf, charcode); |
| if (len == 1) { |
| str += buf[0]; |
| } else { |
| str += CFX_ByteString(buf, len); |
| } |
| } |
| |
| CFX_WideString CPDF_Font::UnicodeFromCharCode(FX_DWORD charcode) const { |
| if (!m_bToUnicodeLoaded) |
| ((CPDF_Font*)this)->LoadUnicodeMap(); |
| |
| if (m_pToUnicodeMap) |
| return m_pToUnicodeMap->Lookup(charcode); |
| return CFX_WideString(); |
| } |
| |
| FX_DWORD CPDF_Font::CharCodeFromUnicode(FX_WCHAR unicode) const { |
| if (!m_bToUnicodeLoaded) |
| ((CPDF_Font*)this)->LoadUnicodeMap(); |
| |
| if (m_pToUnicodeMap) |
| return m_pToUnicodeMap->ReverseLookup(unicode); |
| return 0; |
| } |
| |
| void CPDF_Font::LoadFontDescriptor(CPDF_Dictionary* pFontDesc) { |
| m_Flags = pFontDesc->GetIntegerBy("Flags", PDFFONT_NONSYMBOLIC); |
| int ItalicAngle = 0; |
| FX_BOOL bExistItalicAngle = FALSE; |
| if (pFontDesc->KeyExist("ItalicAngle")) { |
| ItalicAngle = pFontDesc->GetIntegerBy("ItalicAngle"); |
| bExistItalicAngle = TRUE; |
| } |
| if (ItalicAngle < 0) { |
| m_Flags |= PDFFONT_ITALIC; |
| m_ItalicAngle = ItalicAngle; |
| } |
| FX_BOOL bExistStemV = FALSE; |
| if (pFontDesc->KeyExist("StemV")) { |
| m_StemV = pFontDesc->GetIntegerBy("StemV"); |
| bExistStemV = TRUE; |
| } |
| FX_BOOL bExistAscent = FALSE; |
| if (pFontDesc->KeyExist("Ascent")) { |
| m_Ascent = pFontDesc->GetIntegerBy("Ascent"); |
| bExistAscent = TRUE; |
| } |
| FX_BOOL bExistDescent = FALSE; |
| if (pFontDesc->KeyExist("Descent")) { |
| m_Descent = pFontDesc->GetIntegerBy("Descent"); |
| bExistDescent = TRUE; |
| } |
| FX_BOOL bExistCapHeight = FALSE; |
| if (pFontDesc->KeyExist("CapHeight")) { |
| bExistCapHeight = TRUE; |
| } |
| if (bExistItalicAngle && bExistAscent && bExistCapHeight && bExistDescent && |
| bExistStemV) { |
| m_Flags |= PDFFONT_USEEXTERNATTR; |
| } |
| if (m_Descent > 10) { |
| m_Descent = -m_Descent; |
| } |
| CPDF_Array* pBBox = pFontDesc->GetArrayBy("FontBBox"); |
| if (pBBox) { |
| m_FontBBox.left = pBBox->GetIntegerAt(0); |
| m_FontBBox.bottom = pBBox->GetIntegerAt(1); |
| m_FontBBox.right = pBBox->GetIntegerAt(2); |
| m_FontBBox.top = pBBox->GetIntegerAt(3); |
| } |
| |
| CPDF_Stream* pFontFile = pFontDesc->GetStreamBy("FontFile"); |
| if (!pFontFile) |
| pFontFile = pFontDesc->GetStreamBy("FontFile2"); |
| if (!pFontFile) |
| pFontFile = pFontDesc->GetStreamBy("FontFile3"); |
| if (!pFontFile) |
| return; |
| |
| m_pFontFile = m_pDocument->LoadFontFile(pFontFile); |
| if (!m_pFontFile) |
| return; |
| |
| const uint8_t* pFontData = m_pFontFile->GetData(); |
| FX_DWORD dwFontSize = m_pFontFile->GetSize(); |
| if (!m_Font.LoadEmbedded(pFontData, dwFontSize)) { |
| m_pDocument->GetPageData()->ReleaseFontFileStreamAcc( |
| const_cast<CPDF_Stream*>(m_pFontFile->GetStream()->AsStream())); |
| m_pFontFile = nullptr; |
| } |
| } |
| |
| short TT2PDF(int m, FXFT_Face face) { |
| int upm = FXFT_Get_Face_UnitsPerEM(face); |
| if (upm == 0) { |
| return (short)m; |
| } |
| return (m * 1000 + upm / 2) / upm; |
| } |
| |
| void CPDF_Font::CheckFontMetrics() { |
| if (m_FontBBox.top == 0 && m_FontBBox.bottom == 0 && m_FontBBox.left == 0 && |
| m_FontBBox.right == 0) { |
| FXFT_Face face = m_Font.GetFace(); |
| if (face) { |
| m_FontBBox.left = TT2PDF(FXFT_Get_Face_xMin(face), face); |
| m_FontBBox.bottom = TT2PDF(FXFT_Get_Face_yMin(face), face); |
| m_FontBBox.right = TT2PDF(FXFT_Get_Face_xMax(face), face); |
| m_FontBBox.top = TT2PDF(FXFT_Get_Face_yMax(face), face); |
| m_Ascent = TT2PDF(FXFT_Get_Face_Ascender(face), face); |
| m_Descent = TT2PDF(FXFT_Get_Face_Descender(face), face); |
| } else { |
| FX_BOOL bFirst = TRUE; |
| for (int i = 0; i < 256; i++) { |
| FX_RECT rect = GetCharBBox(i); |
| if (rect.left == rect.right) { |
| continue; |
| } |
| if (bFirst) { |
| m_FontBBox = rect; |
| bFirst = FALSE; |
| } else { |
| if (m_FontBBox.top < rect.top) { |
| m_FontBBox.top = rect.top; |
| } |
| if (m_FontBBox.right < rect.right) { |
| m_FontBBox.right = rect.right; |
| } |
| if (m_FontBBox.left > rect.left) { |
| m_FontBBox.left = rect.left; |
| } |
| if (m_FontBBox.bottom > rect.bottom) { |
| m_FontBBox.bottom = rect.bottom; |
| } |
| } |
| } |
| } |
| } |
| if (m_Ascent == 0 && m_Descent == 0) { |
| FX_RECT rect = GetCharBBox('A'); |
| m_Ascent = rect.bottom == rect.top ? m_FontBBox.top : rect.top; |
| rect = GetCharBBox('g'); |
| m_Descent = rect.bottom == rect.top ? m_FontBBox.bottom : rect.bottom; |
| } |
| } |
| |
| void CPDF_Font::LoadUnicodeMap() { |
| m_bToUnicodeLoaded = TRUE; |
| CPDF_Stream* pStream = m_pFontDict->GetStreamBy("ToUnicode"); |
| if (!pStream) { |
| return; |
| } |
| m_pToUnicodeMap = new CPDF_ToUnicodeMap; |
| m_pToUnicodeMap->Load(pStream); |
| } |
| |
| int CPDF_Font::GetStringWidth(const FX_CHAR* pString, int size) { |
| int offset = 0; |
| int width = 0; |
| while (offset < size) { |
| FX_DWORD charcode = GetNextChar(pString, size, offset); |
| width += GetCharWidthF(charcode); |
| } |
| return width; |
| } |
| |
| CPDF_Font* CPDF_Font::GetStockFont(CPDF_Document* pDoc, |
| const CFX_ByteStringC& name) { |
| CFX_ByteString fontname(name); |
| int font_id = PDF_GetStandardFontName(&fontname); |
| if (font_id < 0) { |
| return nullptr; |
| } |
| CPDF_FontGlobals* pFontGlobals = |
| CPDF_ModuleMgr::Get()->GetPageModule()->GetFontGlobals(); |
| CPDF_Font* pFont = pFontGlobals->Find(pDoc, font_id); |
| if (pFont) { |
| return pFont; |
| } |
| CPDF_Dictionary* pDict = new CPDF_Dictionary; |
| pDict->SetAtName("Type", "Font"); |
| pDict->SetAtName("Subtype", "Type1"); |
| pDict->SetAtName("BaseFont", fontname); |
| pDict->SetAtName("Encoding", "WinAnsiEncoding"); |
| pFont = CPDF_Font::CreateFontF(NULL, pDict); |
| pFontGlobals->Set(pDoc, font_id, pFont); |
| return pFont; |
| } |
| |
| CPDF_Font* CPDF_Font::CreateFontF(CPDF_Document* pDoc, |
| CPDF_Dictionary* pFontDict) { |
| CFX_ByteString type = pFontDict->GetStringBy("Subtype"); |
| CPDF_Font* pFont; |
| if (type == "TrueType") { |
| { |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ || \ |
| _FXM_PLATFORM_ == _FXM_PLATFORM_LINUX_ || \ |
| _FXM_PLATFORM_ == _FXM_PLATFORM_ANDROID_ || \ |
| _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| CFX_ByteString basefont = pFontDict->GetStringBy("BaseFont"); |
| CFX_ByteString tag = basefont.Left(4); |
| int i; |
| int count = sizeof(ChineseFontNames) / sizeof(ChineseFontNames[0]); |
| for (i = 0; i < count; ++i) { |
| if (tag == CFX_ByteString((const FX_CHAR*)ChineseFontNames[i])) { |
| break; |
| } |
| } |
| if (i < count) { |
| CPDF_Dictionary* pFontDesc = pFontDict->GetDictBy("FontDescriptor"); |
| if (!pFontDesc || !pFontDesc->KeyExist("FontFile2")) { |
| pFont = new CPDF_CIDFont; |
| pFont->m_pFontDict = pFontDict; |
| pFont->m_pDocument = pDoc; |
| pFont->m_BaseFont = pFontDict->GetStringBy("BaseFont"); |
| if (!pFont->Load()) { |
| delete pFont; |
| return NULL; |
| } |
| return pFont; |
| } |
| } |
| #endif |
| } |
| pFont = new CPDF_TrueTypeFont; |
| } else if (type == "Type3") { |
| pFont = new CPDF_Type3Font; |
| } else if (type == "Type0") { |
| pFont = new CPDF_CIDFont; |
| } else { |
| pFont = new CPDF_Type1Font; |
| } |
| pFont->m_pFontDict = pFontDict; |
| pFont->m_pDocument = pDoc; |
| pFont->m_BaseFont = pFontDict->GetStringBy("BaseFont"); |
| if (!pFont->Load()) { |
| delete pFont; |
| return NULL; |
| } |
| return pFont; |
| } |
| |
| CFX_WideString CPDF_ToUnicodeMap::Lookup(FX_DWORD charcode) { |
| auto it = m_Map.find(charcode); |
| if (it != m_Map.end()) { |
| FX_DWORD value = it->second; |
| FX_WCHAR unicode = (FX_WCHAR)(value & 0xffff); |
| if (unicode != 0xffff) { |
| return unicode; |
| } |
| const FX_WCHAR* buf = m_MultiCharBuf.GetBuffer(); |
| FX_DWORD buf_len = m_MultiCharBuf.GetLength(); |
| if (!buf || buf_len == 0) { |
| return CFX_WideString(); |
| } |
| FX_DWORD index = value >> 16; |
| if (index >= buf_len) { |
| return CFX_WideString(); |
| } |
| FX_DWORD len = buf[index]; |
| if (index + len < index || index + len >= buf_len) { |
| return CFX_WideString(); |
| } |
| return CFX_WideString(buf + index + 1, len); |
| } |
| if (m_pBaseMap) { |
| return m_pBaseMap->UnicodeFromCID((FX_WORD)charcode); |
| } |
| return CFX_WideString(); |
| } |
| |
| FX_DWORD CPDF_ToUnicodeMap::ReverseLookup(FX_WCHAR unicode) { |
| for (const auto& pair : m_Map) { |
| if (pair.second == unicode) |
| return pair.first; |
| } |
| return 0; |
| } |
| |
| // Static. |
| FX_DWORD CPDF_ToUnicodeMap::StringToCode(const CFX_ByteStringC& str) { |
| const FX_CHAR* buf = str.GetCStr(); |
| int len = str.GetLength(); |
| if (len == 0) |
| return 0; |
| |
| int result = 0; |
| if (buf[0] == '<') { |
| for (int i = 1; i < len && std::isxdigit(buf[i]); ++i) |
| result = result * 16 + FXSYS_toHexDigit(buf[i]); |
| return result; |
| } |
| |
| for (int i = 0; i < len && std::isdigit(buf[i]); ++i) |
| result = result * 10 + FXSYS_toDecimalDigit(buf[i]); |
| |
| return result; |
| } |
| |
| static CFX_WideString StringDataAdd(CFX_WideString str) { |
| CFX_WideString ret; |
| int len = str.GetLength(); |
| FX_WCHAR value = 1; |
| for (int i = len - 1; i >= 0; --i) { |
| FX_WCHAR ch = str[i] + value; |
| if (ch < str[i]) { |
| ret.Insert(0, 0); |
| } else { |
| ret.Insert(0, ch); |
| value = 0; |
| } |
| } |
| if (value) { |
| ret.Insert(0, value); |
| } |
| return ret; |
| } |
| |
| // Static. |
| CFX_WideString CPDF_ToUnicodeMap::StringToWideString( |
| const CFX_ByteStringC& str) { |
| const FX_CHAR* buf = str.GetCStr(); |
| int len = str.GetLength(); |
| if (len == 0) |
| return CFX_WideString(); |
| |
| CFX_WideString result; |
| if (buf[0] == '<') { |
| int byte_pos = 0; |
| FX_WCHAR ch = 0; |
| for (int i = 1; i < len && std::isxdigit(buf[i]); ++i) { |
| ch = ch * 16 + FXSYS_toHexDigit(buf[i]); |
| byte_pos++; |
| if (byte_pos == 4) { |
| result += ch; |
| byte_pos = 0; |
| ch = 0; |
| } |
| } |
| return result; |
| } |
| return result; |
| } |
| |
| void CPDF_ToUnicodeMap::Load(CPDF_Stream* pStream) { |
| CIDSet cid_set = CIDSET_UNKNOWN; |
| CPDF_StreamAcc stream; |
| stream.LoadAllData(pStream, FALSE); |
| CPDF_SimpleParser parser(stream.GetData(), stream.GetSize()); |
| while (1) { |
| CFX_ByteStringC word = parser.GetWord(); |
| if (word.IsEmpty()) { |
| break; |
| } |
| if (word == "beginbfchar") { |
| while (1) { |
| word = parser.GetWord(); |
| if (word.IsEmpty() || word == "endbfchar") { |
| break; |
| } |
| FX_DWORD srccode = StringToCode(word); |
| word = parser.GetWord(); |
| CFX_WideString destcode = StringToWideString(word); |
| int len = destcode.GetLength(); |
| if (len == 0) { |
| continue; |
| } |
| if (len == 1) { |
| m_Map[srccode] = destcode.GetAt(0); |
| } else { |
| m_Map[srccode] = m_MultiCharBuf.GetLength() * 0x10000 + 0xffff; |
| m_MultiCharBuf.AppendChar(destcode.GetLength()); |
| m_MultiCharBuf << destcode; |
| } |
| } |
| } else if (word == "beginbfrange") { |
| while (1) { |
| CFX_ByteString low, high; |
| low = parser.GetWord(); |
| if (low.IsEmpty() || low == "endbfrange") { |
| break; |
| } |
| high = parser.GetWord(); |
| FX_DWORD lowcode = StringToCode(low); |
| FX_DWORD highcode = |
| (lowcode & 0xffffff00) | (StringToCode(high) & 0xff); |
| if (highcode == (FX_DWORD)-1) { |
| break; |
| } |
| CFX_ByteString start = parser.GetWord(); |
| if (start == "[") { |
| for (FX_DWORD code = lowcode; code <= highcode; code++) { |
| CFX_ByteString dest = parser.GetWord(); |
| CFX_WideString destcode = StringToWideString(dest); |
| int len = destcode.GetLength(); |
| if (len == 0) { |
| continue; |
| } |
| if (len == 1) { |
| m_Map[code] = destcode.GetAt(0); |
| } else { |
| m_Map[code] = m_MultiCharBuf.GetLength() * 0x10000 + 0xffff; |
| m_MultiCharBuf.AppendChar(destcode.GetLength()); |
| m_MultiCharBuf << destcode; |
| } |
| } |
| parser.GetWord(); |
| } else { |
| CFX_WideString destcode = StringToWideString(start); |
| int len = destcode.GetLength(); |
| FX_DWORD value = 0; |
| if (len == 1) { |
| value = StringToCode(start); |
| for (FX_DWORD code = lowcode; code <= highcode; code++) { |
| m_Map[code] = value++; |
| } |
| } else { |
| for (FX_DWORD code = lowcode; code <= highcode; code++) { |
| CFX_WideString retcode; |
| if (code == lowcode) { |
| retcode = destcode; |
| } else { |
| retcode = StringDataAdd(destcode); |
| } |
| m_Map[code] = m_MultiCharBuf.GetLength() * 0x10000 + 0xffff; |
| m_MultiCharBuf.AppendChar(retcode.GetLength()); |
| m_MultiCharBuf << retcode; |
| destcode = retcode; |
| } |
| } |
| } |
| } |
| } else if (word == "/Adobe-Korea1-UCS2") { |
| cid_set = CIDSET_KOREA1; |
| } else if (word == "/Adobe-Japan1-UCS2") { |
| cid_set = CIDSET_JAPAN1; |
| } else if (word == "/Adobe-CNS1-UCS2") { |
| cid_set = CIDSET_CNS1; |
| } else if (word == "/Adobe-GB1-UCS2") { |
| cid_set = CIDSET_GB1; |
| } |
| } |
| if (cid_set) { |
| m_pBaseMap = CPDF_ModuleMgr::Get() |
| ->GetPageModule() |
| ->GetFontGlobals() |
| ->m_CMapManager.GetCID2UnicodeMap(cid_set, FALSE); |
| } else { |
| m_pBaseMap = NULL; |
| } |
| } |
| |
| FX_DWORD CPDF_Font::GetNextChar(const FX_CHAR* pString, |
| int nStrLen, |
| int& offset) const { |
| if (offset < 0 || nStrLen < 1) { |
| return 0; |
| } |
| uint8_t ch = offset < nStrLen ? pString[offset++] : pString[nStrLen - 1]; |
| return static_cast<FX_DWORD>(ch); |
| } |
| |
| void CPDF_Font::LoadPDFEncoding(CPDF_Object* pEncoding, |
| int& iBaseEncoding, |
| CFX_ByteString*& pCharNames, |
| FX_BOOL bEmbedded, |
| FX_BOOL bTrueType) { |
| if (!pEncoding) { |
| if (m_BaseFont == "Symbol") { |
| iBaseEncoding = bTrueType ? PDFFONT_ENCODING_MS_SYMBOL |
| : PDFFONT_ENCODING_ADOBE_SYMBOL; |
| } else if (!bEmbedded && iBaseEncoding == PDFFONT_ENCODING_BUILTIN) { |
| iBaseEncoding = PDFFONT_ENCODING_WINANSI; |
| } |
| return; |
| } |
| if (pEncoding->IsName()) { |
| if (iBaseEncoding == PDFFONT_ENCODING_ADOBE_SYMBOL || |
| iBaseEncoding == PDFFONT_ENCODING_ZAPFDINGBATS) { |
| return; |
| } |
| if ((m_Flags & PDFFONT_SYMBOLIC) && m_BaseFont == "Symbol") { |
| if (!bTrueType) { |
| iBaseEncoding = PDFFONT_ENCODING_ADOBE_SYMBOL; |
| } |
| return; |
| } |
| CFX_ByteString bsEncoding = pEncoding->GetString(); |
| if (bsEncoding.Compare("MacExpertEncoding") == 0) { |
| bsEncoding = "WinAnsiEncoding"; |
| } |
| GetPredefinedEncoding(iBaseEncoding, bsEncoding); |
| return; |
| } |
| |
| CPDF_Dictionary* pDict = pEncoding->AsDictionary(); |
| if (!pDict) |
| return; |
| |
| if (iBaseEncoding != PDFFONT_ENCODING_ADOBE_SYMBOL && |
| iBaseEncoding != PDFFONT_ENCODING_ZAPFDINGBATS) { |
| CFX_ByteString bsEncoding = pDict->GetStringBy("BaseEncoding"); |
| if (bsEncoding.Compare("MacExpertEncoding") == 0 && bTrueType) { |
| bsEncoding = "WinAnsiEncoding"; |
| } |
| GetPredefinedEncoding(iBaseEncoding, bsEncoding); |
| } |
| if ((!bEmbedded || bTrueType) && iBaseEncoding == PDFFONT_ENCODING_BUILTIN) { |
| iBaseEncoding = PDFFONT_ENCODING_STANDARD; |
| } |
| CPDF_Array* pDiffs = pDict->GetArrayBy("Differences"); |
| if (!pDiffs) { |
| return; |
| } |
| pCharNames = new CFX_ByteString[256]; |
| FX_DWORD cur_code = 0; |
| for (FX_DWORD i = 0; i < pDiffs->GetCount(); i++) { |
| CPDF_Object* pElement = pDiffs->GetElementValue(i); |
| if (!pElement) |
| continue; |
| |
| if (CPDF_Name* pName = pElement->AsName()) { |
| if (cur_code < 256) |
| pCharNames[cur_code] = pName->GetString(); |
| cur_code++; |
| } else { |
| cur_code = pElement->GetInteger(); |
| } |
| } |
| } |
| |
| FX_BOOL CPDF_Font::IsStandardFont() const { |
| if (!IsType1Font()) |
| return FALSE; |
| if (m_pFontFile) |
| return FALSE; |
| if (AsType1Font()->GetBase14Font() < 0) |
| return FALSE; |
| return TRUE; |
| } |
| |
| CPDF_SimpleFont::CPDF_SimpleFont() |
| : m_pCharNames(nullptr), m_BaseEncoding(PDFFONT_ENCODING_BUILTIN) { |
| FXSYS_memset(m_CharWidth, 0xff, sizeof m_CharWidth); |
| FXSYS_memset(m_GlyphIndex, 0xff, sizeof m_GlyphIndex); |
| FXSYS_memset(m_ExtGID, 0xff, sizeof m_ExtGID); |
| } |
| |
| CPDF_SimpleFont::~CPDF_SimpleFont() { |
| delete[] m_pCharNames; |
| } |
| |
| int CPDF_SimpleFont::GlyphFromCharCode(FX_DWORD charcode, FX_BOOL* pVertGlyph) { |
| if (pVertGlyph) { |
| *pVertGlyph = FALSE; |
| } |
| if (charcode > 0xff) { |
| return -1; |
| } |
| int index = m_GlyphIndex[(uint8_t)charcode]; |
| if (index == 0xffff) { |
| return -1; |
| } |
| return index; |
| } |
| |
| void CPDF_SimpleFont::LoadCharMetrics(int charcode) { |
| if (!m_Font.GetFace()) |
| return; |
| |
| if (charcode < 0 || charcode > 0xff) { |
| return; |
| } |
| int glyph_index = m_GlyphIndex[charcode]; |
| if (glyph_index == 0xffff) { |
| if (!m_pFontFile && charcode != 32) { |
| LoadCharMetrics(32); |
| m_CharBBox[charcode] = m_CharBBox[32]; |
| if (m_bUseFontWidth) { |
| m_CharWidth[charcode] = m_CharWidth[32]; |
| } |
| } |
| return; |
| } |
| FXFT_Face face = m_Font.GetFace(); |
| int err = FXFT_Load_Glyph( |
| face, glyph_index, |
| FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH); |
| if (err) { |
| return; |
| } |
| m_CharBBox[charcode] = FX_SMALL_RECT( |
| TT2PDF(FXFT_Get_Glyph_HoriBearingX(face), face), |
| TT2PDF(FXFT_Get_Glyph_HoriBearingY(face), face), |
| TT2PDF(FXFT_Get_Glyph_HoriBearingX(face) + FXFT_Get_Glyph_Width(face), |
| face), |
| TT2PDF(FXFT_Get_Glyph_HoriBearingY(face) - FXFT_Get_Glyph_Height(face), |
| face)); |
| |
| if (m_bUseFontWidth) { |
| int TT_Width = TT2PDF(FXFT_Get_Glyph_HoriAdvance(face), face); |
| if (m_CharWidth[charcode] == 0xffff) { |
| m_CharWidth[charcode] = TT_Width; |
| } else if (TT_Width && !IsEmbedded()) { |
| m_CharBBox[charcode].right = |
| m_CharBBox[charcode].right * m_CharWidth[charcode] / TT_Width; |
| m_CharBBox[charcode].left = |
| m_CharBBox[charcode].left * m_CharWidth[charcode] / TT_Width; |
| } |
| } |
| } |
| |
| int CPDF_SimpleFont::GetCharWidthF(FX_DWORD charcode, int level) { |
| if (charcode > 0xff) { |
| charcode = 0; |
| } |
| if (m_CharWidth[charcode] == 0xffff) { |
| LoadCharMetrics(charcode); |
| if (m_CharWidth[charcode] == 0xffff) { |
| m_CharWidth[charcode] = 0; |
| } |
| } |
| return (int16_t)m_CharWidth[charcode]; |
| } |
| |
| FX_RECT CPDF_SimpleFont::GetCharBBox(FX_DWORD charcode, int level) { |
| if (charcode > 0xff) |
| charcode = 0; |
| |
| if (m_CharBBox[charcode].left == FX_SMALL_RECT::kInvalid) |
| LoadCharMetrics(charcode); |
| |
| return FX_RECT(m_CharBBox[charcode]); |
| } |
| |
| const FX_CHAR* GetAdobeCharName(int iBaseEncoding, |
| const CFX_ByteString* pCharNames, |
| int charcode) { |
| ASSERT(charcode >= 0 && charcode < 256); |
| if (charcode < 0 || charcode >= 256) { |
| return NULL; |
| } |
| const FX_CHAR* name = NULL; |
| if (pCharNames) { |
| name = pCharNames[charcode]; |
| } |
| if ((!name || name[0] == 0) && iBaseEncoding) { |
| name = PDF_CharNameFromPredefinedCharSet(iBaseEncoding, charcode); |
| } |
| return name && name[0] ? name : nullptr; |
| } |
| |
| FX_BOOL CPDF_SimpleFont::LoadCommon() { |
| CPDF_Dictionary* pFontDesc = m_pFontDict->GetDictBy("FontDescriptor"); |
| if (pFontDesc) { |
| LoadFontDescriptor(pFontDesc); |
| } |
| CPDF_Array* pWidthArray = m_pFontDict->GetArrayBy("Widths"); |
| int width_start = 0, width_end = -1; |
| m_bUseFontWidth = TRUE; |
| if (pWidthArray) { |
| m_bUseFontWidth = FALSE; |
| if (pFontDesc && pFontDesc->KeyExist("MissingWidth")) { |
| int MissingWidth = pFontDesc->GetIntegerBy("MissingWidth"); |
| for (int i = 0; i < 256; i++) { |
| m_CharWidth[i] = MissingWidth; |
| } |
| } |
| width_start = m_pFontDict->GetIntegerBy("FirstChar", 0); |
| width_end = m_pFontDict->GetIntegerBy("LastChar", 0); |
| if (width_start >= 0 && width_start <= 255) { |
| if (width_end <= 0 || |
| width_end >= width_start + (int)pWidthArray->GetCount()) { |
| width_end = width_start + pWidthArray->GetCount() - 1; |
| } |
| if (width_end > 255) { |
| width_end = 255; |
| } |
| for (int i = width_start; i <= width_end; i++) { |
| m_CharWidth[i] = pWidthArray->GetIntegerAt(i - width_start); |
| } |
| } |
| } |
| if (m_pFontFile) { |
| if (m_BaseFont.GetLength() > 8 && m_BaseFont[7] == '+') { |
| m_BaseFont = m_BaseFont.Mid(8); |
| } |
| } else { |
| LoadSubstFont(); |
| } |
| if (!(m_Flags & PDFFONT_SYMBOLIC)) { |
| m_BaseEncoding = PDFFONT_ENCODING_STANDARD; |
| } |
| CPDF_Object* pEncoding = m_pFontDict->GetElementValue("Encoding"); |
| LoadPDFEncoding(pEncoding, m_BaseEncoding, m_pCharNames, m_pFontFile != NULL, |
| m_Font.IsTTFont()); |
| LoadGlyphMap(); |
| delete[] m_pCharNames; |
| m_pCharNames = NULL; |
| if (!m_Font.GetFace()) |
| return TRUE; |
| |
| if (m_Flags & PDFFONT_ALLCAP) { |
| unsigned char lowercases[] = {'a', 'z', 0xe0, 0xf6, 0xf8, 0xfd}; |
| for (size_t range = 0; range < sizeof lowercases / 2; range++) { |
| for (int i = lowercases[range * 2]; i <= lowercases[range * 2 + 1]; i++) { |
| if (m_GlyphIndex[i] != 0xffff && m_pFontFile) { |
| continue; |
| } |
| m_GlyphIndex[i] = m_GlyphIndex[i - 32]; |
| if (m_CharWidth[i - 32]) { |
| m_CharWidth[i] = m_CharWidth[i - 32]; |
| m_CharBBox[i] = m_CharBBox[i - 32]; |
| } |
| } |
| } |
| } |
| CheckFontMetrics(); |
| return TRUE; |
| } |
| |
| void CPDF_SimpleFont::LoadSubstFont() { |
| if (!m_bUseFontWidth && !(m_Flags & PDFFONT_FIXEDPITCH)) { |
| int width = 0, i; |
| for (i = 0; i < 256; i++) { |
| if (m_CharWidth[i] == 0 || m_CharWidth[i] == 0xffff) { |
| continue; |
| } |
| if (width == 0) { |
| width = m_CharWidth[i]; |
| } else if (width != m_CharWidth[i]) { |
| break; |
| } |
| } |
| if (i == 256 && width) { |
| m_Flags |= PDFFONT_FIXEDPITCH; |
| } |
| } |
| int weight = m_StemV < 140 ? m_StemV * 5 : (m_StemV * 4 + 140); |
| m_Font.LoadSubst(m_BaseFont, IsTrueTypeFont(), m_Flags, weight, m_ItalicAngle, |
| 0); |
| if (m_Font.GetSubstFont()->m_SubstFlags & FXFONT_SUBST_NONSYMBOL) { |
| } |
| } |
| |
| FX_BOOL CPDF_SimpleFont::IsUnicodeCompatible() const { |
| return m_BaseEncoding != PDFFONT_ENCODING_BUILTIN && |
| m_BaseEncoding != PDFFONT_ENCODING_ADOBE_SYMBOL && |
| m_BaseEncoding != PDFFONT_ENCODING_ZAPFDINGBATS; |
| } |
| |
| CFX_WideString CPDF_SimpleFont::UnicodeFromCharCode(FX_DWORD charcode) const { |
| CFX_WideString unicode = CPDF_Font::UnicodeFromCharCode(charcode); |
| if (!unicode.IsEmpty()) |
| return unicode; |
| FX_WCHAR ret = m_Encoding.UnicodeFromCharCode((uint8_t)charcode); |
| if (ret == 0) |
| return CFX_WideString(); |
| return ret; |
| } |
| |
| FX_DWORD CPDF_SimpleFont::CharCodeFromUnicode(FX_WCHAR unicode) const { |
| FX_DWORD ret = CPDF_Font::CharCodeFromUnicode(unicode); |
| if (ret) |
| return ret; |
| return m_Encoding.CharCodeFromUnicode(unicode); |
| } |
| |
| CPDF_Type1Font::CPDF_Type1Font() : m_Base14Font(-1) {} |
| |
| bool CPDF_Type1Font::IsType1Font() const { |
| return true; |
| } |
| |
| const CPDF_Type1Font* CPDF_Type1Font::AsType1Font() const { |
| return this; |
| } |
| |
| CPDF_Type1Font* CPDF_Type1Font::AsType1Font() { |
| return this; |
| } |
| |
| FX_BOOL CPDF_Type1Font::Load() { |
| m_Base14Font = PDF_GetStandardFontName(&m_BaseFont); |
| if (m_Base14Font >= 0) { |
| CPDF_Dictionary* pFontDesc = m_pFontDict->GetDictBy("FontDescriptor"); |
| if (pFontDesc && pFontDesc->KeyExist("Flags")) |
| m_Flags = pFontDesc->GetIntegerBy("Flags"); |
| else |
| m_Flags = m_Base14Font >= 12 ? PDFFONT_SYMBOLIC : PDFFONT_NONSYMBOLIC; |
| |
| if (m_Base14Font < 4) { |
| for (int i = 0; i < 256; i++) |
| m_CharWidth[i] = 600; |
| } |
| if (m_Base14Font == 12) |
| m_BaseEncoding = PDFFONT_ENCODING_ADOBE_SYMBOL; |
| else if (m_Base14Font == 13) |
| m_BaseEncoding = PDFFONT_ENCODING_ZAPFDINGBATS; |
| else if (m_Flags & PDFFONT_NONSYMBOLIC) |
| m_BaseEncoding = PDFFONT_ENCODING_STANDARD; |
| } |
| return LoadCommon(); |
| } |
| |
| int CPDF_Type1Font::GlyphFromCharCodeExt(FX_DWORD charcode) { |
| if (charcode > 0xff) { |
| return -1; |
| } |
| int index = m_ExtGID[(uint8_t)charcode]; |
| if (index == 0xffff) { |
| return -1; |
| } |
| return index; |
| } |
| |
| void CPDF_Type1Font::LoadGlyphMap() { |
| if (!m_Font.GetFace()) |
| return; |
| |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| FX_BOOL bCoreText = TRUE; |
| CQuartz2D& quartz2d = |
| ((CApplePlatform*)CFX_GEModule::Get()->GetPlatformData())->_quartz2d; |
| if (!m_Font.GetPlatformFont()) { |
| if (m_Font.GetPsName() == CFX_WideString::FromLocal("DFHeiStd-W5")) { |
| bCoreText = FALSE; |
| } |
| m_Font.SetPlatformFont( |
| quartz2d.CreateFont(m_Font.GetFontData(), m_Font.GetSize())); |
| if (!m_Font.GetPlatformFont()) { |
| bCoreText = FALSE; |
| } |
| } |
| #endif |
| if (!IsEmbedded() && (m_Base14Font < 12) && m_Font.IsTTFont()) { |
| if (FT_UseTTCharmap(m_Font.GetFace(), 3, 0)) { |
| FX_BOOL bGotOne = FALSE; |
| for (int charcode = 0; charcode < 256; charcode++) { |
| const uint8_t prefix[4] = {0x00, 0xf0, 0xf1, 0xf2}; |
| for (int j = 0; j < 4; j++) { |
| FX_WORD unicode = prefix[j] * 256 + charcode; |
| m_GlyphIndex[charcode] = |
| FXFT_Get_Char_Index(m_Font.GetFace(), unicode); |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| FX_CHAR name_glyph[256]; |
| FXFT_Get_Glyph_Name(m_Font.GetFace(), m_GlyphIndex[charcode], |
| name_glyph, 256); |
| name_glyph[255] = 0; |
| CFStringRef name_ct = CFStringCreateWithCStringNoCopy( |
| kCFAllocatorDefault, name_glyph, kCFStringEncodingASCII, |
| kCFAllocatorNull); |
| m_ExtGID[charcode] = CGFontGetGlyphWithGlyphName( |
| (CGFontRef)m_Font.GetPlatformFont(), name_ct); |
| if (name_ct) { |
| CFRelease(name_ct); |
| } |
| #endif |
| if (m_GlyphIndex[charcode]) { |
| bGotOne = TRUE; |
| break; |
| } |
| } |
| } |
| if (bGotOne) { |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| if (!bCoreText) { |
| FXSYS_memcpy(m_ExtGID, m_GlyphIndex, 256); |
| } |
| #endif |
| return; |
| } |
| } |
| FXFT_Select_Charmap(m_Font.GetFace(), FXFT_ENCODING_UNICODE); |
| if (m_BaseEncoding == 0) { |
| m_BaseEncoding = PDFFONT_ENCODING_STANDARD; |
| } |
| for (int charcode = 0; charcode < 256; charcode++) { |
| const FX_CHAR* name = |
| GetAdobeCharName(m_BaseEncoding, m_pCharNames, charcode); |
| if (!name) { |
| continue; |
| } |
| m_Encoding.m_Unicodes[charcode] = PDF_UnicodeFromAdobeName(name); |
| m_GlyphIndex[charcode] = FXFT_Get_Char_Index( |
| m_Font.GetFace(), m_Encoding.m_Unicodes[charcode]); |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| FX_CHAR name_glyph[256]; |
| FXFT_Get_Glyph_Name(m_Font.GetFace(), m_GlyphIndex[charcode], name_glyph, |
| 256); |
| name_glyph[255] = 0; |
| CFStringRef name_ct = CFStringCreateWithCStringNoCopy( |
| kCFAllocatorDefault, name_glyph, kCFStringEncodingASCII, |
| kCFAllocatorNull); |
| m_ExtGID[charcode] = CGFontGetGlyphWithGlyphName( |
| (CGFontRef)m_Font.GetPlatformFont(), name_ct); |
| if (name_ct) { |
| CFRelease(name_ct); |
| } |
| #endif |
| if (m_GlyphIndex[charcode] == 0 && FXSYS_strcmp(name, ".notdef") == 0) { |
| m_Encoding.m_Unicodes[charcode] = 0x20; |
| m_GlyphIndex[charcode] = FXFT_Get_Char_Index(m_Font.GetFace(), 0x20); |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| FX_CHAR name_glyph[256]; |
| FXFT_Get_Glyph_Name(m_Font.GetFace(), m_GlyphIndex[charcode], |
| name_glyph, 256); |
| name_glyph[255] = 0; |
| CFStringRef name_ct = CFStringCreateWithCStringNoCopy( |
| kCFAllocatorDefault, name_glyph, kCFStringEncodingASCII, |
| kCFAllocatorNull); |
| m_ExtGID[charcode] = CGFontGetGlyphWithGlyphName( |
| (CGFontRef)m_Font.GetPlatformFont(), name_ct); |
| if (name_ct) { |
| CFRelease(name_ct); |
| } |
| #endif |
| } |
| } |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| if (!bCoreText) { |
| FXSYS_memcpy(m_ExtGID, m_GlyphIndex, 256); |
| } |
| #endif |
| return; |
| } |
| FT_UseType1Charmap(m_Font.GetFace()); |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| if (bCoreText) { |
| if (m_Flags & PDFFONT_SYMBOLIC) { |
| for (int charcode = 0; charcode < 256; charcode++) { |
| const FX_CHAR* name = |
| GetAdobeCharName(m_BaseEncoding, m_pCharNames, charcode); |
| if (name) { |
| m_Encoding.m_Unicodes[charcode] = PDF_UnicodeFromAdobeName(name); |
| m_GlyphIndex[charcode] = |
| FXFT_Get_Name_Index(m_Font.GetFace(), (char*)name); |
| CFStringRef name_ct = CFStringCreateWithCStringNoCopy( |
| kCFAllocatorDefault, name, kCFStringEncodingASCII, |
| kCFAllocatorNull); |
| m_ExtGID[charcode] = CGFontGetGlyphWithGlyphName( |
| (CGFontRef)m_Font.GetPlatformFont(), name_ct); |
| if (name_ct) { |
| CFRelease(name_ct); |
| } |
| } else { |
| m_GlyphIndex[charcode] = |
| FXFT_Get_Char_Index(m_Font.GetFace(), charcode); |
| FX_WCHAR unicode = 0; |
| if (m_GlyphIndex[charcode]) { |
| unicode = |
| FT_UnicodeFromCharCode(PDFFONT_ENCODING_STANDARD, charcode); |
| } |
| FX_CHAR name_glyph[256]; |
| FXSYS_memset(name_glyph, 0, sizeof(name_glyph)); |
| FXFT_Get_Glyph_Name(m_Font.GetFace(), m_GlyphIndex[charcode], |
| name_glyph, 256); |
| name_glyph[255] = 0; |
| if (unicode == 0 && name_glyph[0] != 0) { |
| unicode = PDF_UnicodeFromAdobeName(name_glyph); |
| } |
| m_Encoding.m_Unicodes[charcode] = unicode; |
| CFStringRef name_ct = CFStringCreateWithCStringNoCopy( |
| kCFAllocatorDefault, name_glyph, kCFStringEncodingASCII, |
| kCFAllocatorNull); |
| m_ExtGID[charcode] = CGFontGetGlyphWithGlyphName( |
| (CGFontRef)m_Font.GetPlatformFont(), name_ct); |
| if (name_ct) { |
| CFRelease(name_ct); |
| } |
| } |
| } |
| return; |
| } |
| FX_BOOL bUnicode = FALSE; |
| if (0 == FXFT_Select_Charmap(m_Font.GetFace(), FXFT_ENCODING_UNICODE)) { |
| bUnicode = TRUE; |
| } |
| for (int charcode = 0; charcode < 256; charcode++) { |
| const FX_CHAR* name = |
| GetAdobeCharName(m_BaseEncoding, m_pCharNames, charcode); |
| if (!name) { |
| continue; |
| } |
| m_Encoding.m_Unicodes[charcode] = PDF_UnicodeFromAdobeName(name); |
| const FX_CHAR* pStrUnicode = GlyphNameRemap(name); |
| if (pStrUnicode && |
| 0 == FXFT_Get_Name_Index(m_Font.GetFace(), (char*)name)) { |
| name = pStrUnicode; |
| } |
| m_GlyphIndex[charcode] = |
| FXFT_Get_Name_Index(m_Font.GetFace(), (char*)name); |
| CFStringRef name_ct = CFStringCreateWithCStringNoCopy( |
| kCFAllocatorDefault, name, kCFStringEncodingASCII, kCFAllocatorNull); |
| m_ExtGID[charcode] = CGFontGetGlyphWithGlyphName( |
| (CGFontRef)m_Font.GetPlatformFont(), name_ct); |
| if (name_ct) { |
| CFRelease(name_ct); |
| } |
| if (m_GlyphIndex[charcode] == 0) { |
| if (FXSYS_strcmp(name, ".notdef") != 0 && |
| FXSYS_strcmp(name, "space") != 0) { |
| m_GlyphIndex[charcode] = FXFT_Get_Char_Index( |
| m_Font.GetFace(), |
| bUnicode ? m_Encoding.m_Unicodes[charcode] : charcode); |
| FX_CHAR name_glyph[256]; |
| FXFT_Get_Glyph_Name(m_Font.GetFace(), m_GlyphIndex[charcode], |
| name_glyph, 256); |
| name_glyph[255] = 0; |
| CFStringRef name_ct = CFStringCreateWithCStringNoCopy( |
| kCFAllocatorDefault, name_glyph, kCFStringEncodingASCII, |
| kCFAllocatorNull); |
| m_ExtGID[charcode] = CGFontGetGlyphWithGlyphName( |
| (CGFontRef)m_Font.GetPlatformFont(), name_ct); |
| if (name_ct) { |
| CFRelease(name_ct); |
| } |
| } else { |
| m_Encoding.m_Unicodes[charcode] = 0x20; |
| m_GlyphIndex[charcode] = |
| bUnicode ? FXFT_Get_Char_Index(m_Font.GetFace(), 0x20) : 0xffff; |
| FX_CHAR name_glyph[256]; |
| FXFT_Get_Glyph_Name(m_Font.GetFace(), m_GlyphIndex[charcode], |
| name_glyph, 256); |
| name_glyph[255] = 0; |
| CFStringRef name_ct = CFStringCreateWithCStringNoCopy( |
| kCFAllocatorDefault, name_glyph, kCFStringEncodingASCII, |
| kCFAllocatorNull); |
| m_ExtGID[charcode] = CGFontGetGlyphWithGlyphName( |
| (CGFontRef)m_Font.GetPlatformFont(), name_ct); |
| if (name_ct) { |
| CFRelease(name_ct); |
| } |
| } |
| } |
| } |
| return; |
| } |
| #endif |
| if (m_Flags & PDFFONT_SYMBOLIC) { |
| for (int charcode = 0; charcode < 256; charcode++) { |
| const FX_CHAR* name = |
| GetAdobeCharName(m_BaseEncoding, m_pCharNames, charcode); |
| if (name) { |
| m_Encoding.m_Unicodes[charcode] = PDF_UnicodeFromAdobeName(name); |
| m_GlyphIndex[charcode] = |
| FXFT_Get_Name_Index(m_Font.GetFace(), (char*)name); |
| } else { |
| m_GlyphIndex[charcode] = |
| FXFT_Get_Char_Index(m_Font.GetFace(), charcode); |
| if (m_GlyphIndex[charcode]) { |
| FX_WCHAR unicode = |
| FT_UnicodeFromCharCode(PDFFONT_ENCODING_STANDARD, charcode); |
| if (unicode == 0) { |
| FX_CHAR name_glyph[256]; |
| FXSYS_memset(name_glyph, 0, sizeof(name_glyph)); |
| FXFT_Get_Glyph_Name(m_Font.GetFace(), m_GlyphIndex[charcode], |
| name_glyph, 256); |
| name_glyph[255] = 0; |
| if (name_glyph[0] != 0) { |
| unicode = PDF_UnicodeFromAdobeName(name_glyph); |
| } |
| } |
| m_Encoding.m_Unicodes[charcode] = unicode; |
| } |
| } |
| } |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| if (!bCoreText) { |
| FXSYS_memcpy(m_ExtGID, m_GlyphIndex, 256); |
| } |
| #endif |
| return; |
| } |
| FX_BOOL bUnicode = FALSE; |
| if (0 == FXFT_Select_Charmap(m_Font.GetFace(), FXFT_ENCODING_UNICODE)) { |
| bUnicode = TRUE; |
| } |
| for (int charcode = 0; charcode < 256; charcode++) { |
| const FX_CHAR* name = |
| GetAdobeCharName(m_BaseEncoding, m_pCharNames, charcode); |
| if (!name) { |
| continue; |
| } |
| m_Encoding.m_Unicodes[charcode] = PDF_UnicodeFromAdobeName(name); |
| m_GlyphIndex[charcode] = FXFT_Get_Name_Index(m_Font.GetFace(), (char*)name); |
| if (m_GlyphIndex[charcode] == 0) { |
| if (FXSYS_strcmp(name, ".notdef") != 0 && |
| FXSYS_strcmp(name, "space") != 0) { |
| m_GlyphIndex[charcode] = FXFT_Get_Char_Index( |
| m_Font.GetFace(), |
| bUnicode ? m_Encoding.m_Unicodes[charcode] : charcode); |
| } else { |
| m_Encoding.m_Unicodes[charcode] = 0x20; |
| m_GlyphIndex[charcode] = 0xffff; |
| } |
| } |
| } |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| if (!bCoreText) { |
| FXSYS_memcpy(m_ExtGID, m_GlyphIndex, 256); |
| } |
| #endif |
| } |
| |
| CPDF_FontEncoding::CPDF_FontEncoding() { |
| FXSYS_memset(m_Unicodes, 0, sizeof(m_Unicodes)); |
| } |
| |
| int CPDF_FontEncoding::CharCodeFromUnicode(FX_WCHAR unicode) const { |
| for (int i = 0; i < 256; i++) |
| if (m_Unicodes[i] == unicode) { |
| return i; |
| } |
| return -1; |
| } |
| |
| CPDF_FontEncoding::CPDF_FontEncoding(int PredefinedEncoding) { |
| const FX_WORD* pSrc = PDF_UnicodesForPredefinedCharSet(PredefinedEncoding); |
| if (!pSrc) { |
| FXSYS_memset(m_Unicodes, 0, sizeof(m_Unicodes)); |
| } else { |
| for (int i = 0; i < 256; i++) |
| m_Unicodes[i] = pSrc[i]; |
| } |
| } |
| |
| FX_BOOL CPDF_FontEncoding::IsIdentical(CPDF_FontEncoding* pAnother) const { |
| return FXSYS_memcmp(m_Unicodes, pAnother->m_Unicodes, sizeof(m_Unicodes)) == |
| 0; |
| } |
| |
| CPDF_Object* CPDF_FontEncoding::Realize() { |
| int predefined = 0; |
| for (int cs = PDFFONT_ENCODING_WINANSI; cs < PDFFONT_ENCODING_ZAPFDINGBATS; |
| cs++) { |
| const FX_WORD* pSrc = PDF_UnicodesForPredefinedCharSet(cs); |
| FX_BOOL match = TRUE; |
| for (int i = 0; i < 256; ++i) { |
| if (m_Unicodes[i] != pSrc[i]) { |
| match = FALSE; |
| break; |
| } |
| } |
| if (match) { |
| predefined = cs; |
| break; |
| } |
| } |
| if (predefined) { |
| if (predefined == PDFFONT_ENCODING_WINANSI) { |
| return new CPDF_Name("WinAnsiEncoding"); |
| } |
| if (predefined == PDFFONT_ENCODING_MACROMAN) { |
| return new CPDF_Name("MacRomanEncoding"); |
| } |
| if (predefined == PDFFONT_ENCODING_MACEXPERT) { |
| return new CPDF_Name("MacExpertEncoding"); |
| } |
| return NULL; |
| } |
| const FX_WORD* pStandard = |
| PDF_UnicodesForPredefinedCharSet(PDFFONT_ENCODING_WINANSI); |
| CPDF_Array* pDiff = new CPDF_Array; |
| for (int i = 0; i < 256; i++) { |
| if (pStandard[i] == m_Unicodes[i]) { |
| continue; |
| } |
| pDiff->Add(new CPDF_Number(i)); |
| pDiff->Add(new CPDF_Name(PDF_AdobeNameFromUnicode(m_Unicodes[i]))); |
| } |
| |
| CPDF_Dictionary* pDict = new CPDF_Dictionary; |
| pDict->SetAtName("BaseEncoding", "WinAnsiEncoding"); |
| pDict->SetAt("Differences", pDiff); |
| return pDict; |
| } |
| |
| CPDF_TrueTypeFont::CPDF_TrueTypeFont() {} |
| |
| bool CPDF_TrueTypeFont::IsTrueTypeFont() const { |
| return true; |
| } |
| |
| const CPDF_TrueTypeFont* CPDF_TrueTypeFont::AsTrueTypeFont() const { |
| return this; |
| } |
| |
| CPDF_TrueTypeFont* CPDF_TrueTypeFont::AsTrueTypeFont() { |
| return this; |
| } |
| |
| FX_BOOL CPDF_TrueTypeFont::Load() { |
| return LoadCommon(); |
| } |
| |
| 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_pCharNames) || |
| (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->GetIntegerBy("FirstChar"); |
| if (nStartChar < 0 || nStartChar > 255) |
| return; |
| |
| int charcode = 0; |
| for (; charcode < nStartChar; charcode++) { |
| m_GlyphIndex[charcode] = 0; |
| } |
| FX_WORD nGlyph = charcode - nStartChar + 3; |
| for (; charcode < 256; charcode++, nGlyph++) { |
| m_GlyphIndex[charcode] = nGlyph; |
| } |
| return; |
| } |
| FX_BOOL bMSUnicode = FT_UseTTCharmap(m_Font.GetFace(), 3, 1); |
| FX_BOOL bMacRoman = FALSE, 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_pCharNames, 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) { |
| const uint8_t prefix[4] = {0x00, 0xf0, 0xf1, 0xf2}; |
| for (int j = 0; j < 4; j++) { |
| FX_WORD unicode = prefix[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) { |
| FX_DWORD 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)) { |
| const uint8_t prefix[4] = {0x00, 0xf0, 0xf1, 0xf2}; |
| FX_BOOL bGotOne = FALSE; |
| for (int charcode = 0; charcode < 256; charcode++) { |
| for (int j = 0; j < 4; j++) { |
| FX_WORD unicode = prefix[j] * 256 + charcode; |
| m_GlyphIndex[charcode] = FXFT_Get_Char_Index(m_Font.GetFace(), unicode); |
| if (m_GlyphIndex[charcode]) { |
| bGotOne = TRUE; |
| break; |
| } |
| } |
| } |
| if (bGotOne) { |
| if (baseEncoding != PDFFONT_ENCODING_BUILTIN) { |
| for (int charcode = 0; charcode < 256; charcode++) { |
| const FX_CHAR* name = |
| GetAdobeCharName(baseEncoding, m_pCharNames, charcode); |
| if (!name) { |
| continue; |
| } |
| 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)) { |
| FX_BOOL bGotOne = 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]) { |
| bGotOne = TRUE; |
| } |
| } |
| if (m_pFontFile || bGotOne) { |
| return; |
| } |
| } |
| if (FXFT_Select_Charmap(m_Font.GetFace(), FXFT_ENCODING_UNICODE) == 0) { |
| FX_BOOL bGotOne = FALSE; |
| const FX_WORD* 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_pCharNames, 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]) { |
| bGotOne = TRUE; |
| } |
| } |
| if (bGotOne) { |
| return; |
| } |
| } |
| for (int charcode = 0; charcode < 256; charcode++) { |
| m_GlyphIndex[charcode] = charcode; |
| } |
| } |
| |
| CPDF_Type3Font::CPDF_Type3Font() |
| : m_pCharProcs(nullptr), |
| m_pPageResources(nullptr), |
| m_pFontResources(nullptr) { |
| FXSYS_memset(m_CharWidthL, 0, sizeof(m_CharWidthL)); |
| } |
| |
| CPDF_Type3Font::~CPDF_Type3Font() { |
| for (auto it : m_CacheMap) |
| delete it.second; |
| } |
| |
| bool CPDF_Type3Font::IsType3Font() const { |
| return true; |
| } |
| |
| const CPDF_Type3Font* CPDF_Type3Font::AsType3Font() const { |
| return this; |
| } |
| |
| CPDF_Type3Font* CPDF_Type3Font::AsType3Font() { |
| return this; |
| } |
| |
| FX_BOOL CPDF_Type3Font::Load() { |
| m_pFontResources = m_pFontDict->GetDictBy("Resources"); |
| CPDF_Array* pMatrix = m_pFontDict->GetArrayBy("FontMatrix"); |
| FX_FLOAT xscale = 1.0f, yscale = 1.0f; |
| if (pMatrix) { |
| m_FontMatrix = pMatrix->GetMatrix(); |
| xscale = m_FontMatrix.a; |
| yscale = m_FontMatrix.d; |
| } |
| CPDF_Array* pBBox = m_pFontDict->GetArrayBy("FontBBox"); |
| if (pBBox) { |
| m_FontBBox.left = (int32_t)(pBBox->GetNumberAt(0) * xscale * 1000); |
| m_FontBBox.bottom = (int32_t)(pBBox->GetNumberAt(1) * yscale * 1000); |
| m_FontBBox.right = (int32_t)(pBBox->GetNumberAt(2) * xscale * 1000); |
| m_FontBBox.top = (int32_t)(pBBox->GetNumberAt(3) * yscale * 1000); |
| } |
| int StartChar = m_pFontDict->GetIntegerBy("FirstChar"); |
| CPDF_Array* pWidthArray = m_pFontDict->GetArrayBy("Widths"); |
| if (pWidthArray && (StartChar >= 0 && StartChar < 256)) { |
| FX_DWORD count = pWidthArray->GetCount(); |
| if (count > 256) { |
| count = 256; |
| } |
| if (StartChar + count > 256) { |
| count = 256 - StartChar; |
| } |
| for (FX_DWORD i = 0; i < count; i++) { |
| m_CharWidthL[StartChar + i] = |
| FXSYS_round(pWidthArray->GetNumberAt(i) * xscale * 1000); |
| } |
| } |
| m_pCharProcs = m_pFontDict->GetDictBy("CharProcs"); |
| CPDF_Object* pEncoding = m_pFontDict->GetElementValue("Encoding"); |
| if (pEncoding) { |
| LoadPDFEncoding(pEncoding, m_BaseEncoding, m_pCharNames, FALSE, FALSE); |
| if (m_pCharNames) { |
| for (int i = 0; i < 256; i++) { |
| m_Encoding.m_Unicodes[i] = PDF_UnicodeFromAdobeName(m_pCharNames[i]); |
| if (m_Encoding.m_Unicodes[i] == 0) { |
| m_Encoding.m_Unicodes[i] = i; |
| } |
| } |
| } |
| } |
| return TRUE; |
| } |
| |
| void CPDF_Type3Font::CheckType3FontMetrics() { |
| CheckFontMetrics(); |
| } |
| |
| CPDF_Type3Char* CPDF_Type3Font::LoadChar(FX_DWORD charcode, int level) { |
| if (level >= _FPDF_MAX_TYPE3_FORM_LEVEL_) |
| return nullptr; |
| |
| auto it = m_CacheMap.find(charcode); |
| if (it != m_CacheMap.end()) |
| return it->second; |
| |
| const FX_CHAR* name = |
| GetAdobeCharName(m_BaseEncoding, m_pCharNames, charcode); |
| if (!name) |
| return nullptr; |
| |
| CPDF_Stream* pStream = |
| ToStream(m_pCharProcs ? m_pCharProcs->GetElementValue(name) : nullptr); |
| if (!pStream) |
| return nullptr; |
| |
| std::unique_ptr<CPDF_Type3Char> pNewChar(new CPDF_Type3Char(new CPDF_Form( |
| m_pDocument, m_pFontResources ? m_pFontResources : m_pPageResources, |
| pStream, nullptr))); |
| |
| // This can trigger recursion into this method. The content of |m_CacheMap| |
| // can change as a result. Thus after it returns, check the cache again for |
| // a cache hit. |
| pNewChar->m_pForm->ParseContent(nullptr, nullptr, pNewChar.get(), nullptr, |
| level + 1); |
| it = m_CacheMap.find(charcode); |
| if (it != m_CacheMap.end()) |
| return it->second; |
| |
| FX_FLOAT scale = m_FontMatrix.GetXUnit(); |
| pNewChar->m_Width = (int32_t)(pNewChar->m_Width * scale + 0.5f); |
| FX_RECT& rcBBox = pNewChar->m_BBox; |
| CFX_FloatRect char_rect( |
| (FX_FLOAT)rcBBox.left / 1000.0f, (FX_FLOAT)rcBBox.bottom / 1000.0f, |
| (FX_FLOAT)rcBBox.right / 1000.0f, (FX_FLOAT)rcBBox.top / 1000.0f); |
| if (rcBBox.right <= rcBBox.left || rcBBox.bottom >= rcBBox.top) |
| char_rect = pNewChar->m_pForm->CalcBoundingBox(); |
| |
| char_rect.Transform(&m_FontMatrix); |
| rcBBox.left = FXSYS_round(char_rect.left * 1000); |
| rcBBox.right = FXSYS_round(char_rect.right * 1000); |
| rcBBox.top = FXSYS_round(char_rect.top * 1000); |
| rcBBox.bottom = FXSYS_round(char_rect.bottom * 1000); |
| |
| ASSERT(!pdfium::ContainsKey(m_CacheMap, charcode)); |
| CPDF_Type3Char* pCachedChar = pNewChar.release(); |
| m_CacheMap[charcode] = pCachedChar; |
| if (pCachedChar->m_pForm->GetPageObjectList()->empty()) { |
| delete pCachedChar->m_pForm; |
| pCachedChar->m_pForm = nullptr; |
| } |
| return pCachedChar; |
| } |
| |
| int CPDF_Type3Font::GetCharWidthF(FX_DWORD charcode, int level) { |
| if (charcode >= FX_ArraySize(m_CharWidthL)) |
| charcode = 0; |
| |
| if (m_CharWidthL[charcode]) |
| return m_CharWidthL[charcode]; |
| |
| const CPDF_Type3Char* pChar = LoadChar(charcode, level); |
| return pChar ? pChar->m_Width : 0; |
| } |
| |
| FX_RECT CPDF_Type3Font::GetCharBBox(FX_DWORD charcode, int level) { |
| const CPDF_Type3Char* pChar = LoadChar(charcode, level); |
| return pChar ? pChar->m_BBox : FX_RECT(); |
| } |
| |
| CPDF_Type3Char::CPDF_Type3Char(CPDF_Form* pForm) |
| : m_pForm(pForm), m_pBitmap(nullptr), m_bColored(FALSE) {} |
| |
| CPDF_Type3Char::~CPDF_Type3Char() { |
| delete m_pForm; |
| delete m_pBitmap; |
| } |
