| // 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 "fpdfsdk/include/pdfwindow/PWL_FontMap.h" |
| |
| #include "core/include/fpdfapi/fpdf_module.h" |
| #include "fpdfsdk/include/pdfwindow/PWL_Wnd.h" |
| |
| namespace { |
| |
| const char kDefaultFontName[] = "Helvetica"; |
| |
| const char* const g_sDEStandardFontName[] = {"Courier", |
| "Courier-Bold", |
| "Courier-BoldOblique", |
| "Courier-Oblique", |
| "Helvetica", |
| "Helvetica-Bold", |
| "Helvetica-BoldOblique", |
| "Helvetica-Oblique", |
| "Times-Roman", |
| "Times-Bold", |
| "Times-Italic", |
| "Times-BoldItalic", |
| "Symbol", |
| "ZapfDingbats"}; |
| |
| } // namespace |
| |
| CPWL_FontMap::CPWL_FontMap(IFX_SystemHandler* pSystemHandler) |
| : m_pPDFDoc(NULL), m_pSystemHandler(pSystemHandler) { |
| ASSERT(m_pSystemHandler); |
| } |
| |
| CPWL_FontMap::~CPWL_FontMap() { |
| delete m_pPDFDoc; |
| m_pPDFDoc = NULL; |
| |
| Empty(); |
| } |
| |
| void CPWL_FontMap::SetSystemHandler(IFX_SystemHandler* pSystemHandler) { |
| m_pSystemHandler = pSystemHandler; |
| } |
| |
| CPDF_Document* CPWL_FontMap::GetDocument() { |
| if (!m_pPDFDoc) { |
| if (CPDF_ModuleMgr::Get()) { |
| m_pPDFDoc = new CPDF_Document; |
| m_pPDFDoc->CreateNewDoc(); |
| } |
| } |
| |
| return m_pPDFDoc; |
| } |
| |
| CPDF_Font* CPWL_FontMap::GetPDFFont(int32_t nFontIndex) { |
| if (nFontIndex >= 0 && nFontIndex < m_aData.GetSize()) { |
| if (CPWL_FontMap_Data* pData = m_aData.GetAt(nFontIndex)) { |
| return pData->pFont; |
| } |
| } |
| |
| return NULL; |
| } |
| |
| CFX_ByteString CPWL_FontMap::GetPDFFontAlias(int32_t nFontIndex) { |
| if (nFontIndex >= 0 && nFontIndex < m_aData.GetSize()) { |
| if (CPWL_FontMap_Data* pData = m_aData.GetAt(nFontIndex)) { |
| return pData->sFontName; |
| } |
| } |
| |
| return ""; |
| } |
| |
| FX_BOOL CPWL_FontMap::KnowWord(int32_t nFontIndex, FX_WORD word) { |
| if (nFontIndex >= 0 && nFontIndex < m_aData.GetSize()) { |
| if (m_aData.GetAt(nFontIndex)) { |
| return CharCodeFromUnicode(nFontIndex, word) >= 0; |
| } |
| } |
| |
| return FALSE; |
| } |
| |
| int32_t CPWL_FontMap::GetWordFontIndex(FX_WORD word, |
| int32_t nCharset, |
| int32_t nFontIndex) { |
| if (nFontIndex > 0) { |
| if (KnowWord(nFontIndex, word)) |
| return nFontIndex; |
| } else { |
| if (const CPWL_FontMap_Data* pData = GetFontMapData(0)) { |
| if (nCharset == DEFAULT_CHARSET || pData->nCharset == SYMBOL_CHARSET || |
| nCharset == pData->nCharset) { |
| if (KnowWord(0, word)) |
| return 0; |
| } |
| } |
| } |
| |
| int32_t nNewFontIndex = |
| GetFontIndex(GetNativeFontName(nCharset), nCharset, TRUE); |
| if (nNewFontIndex >= 0) { |
| if (KnowWord(nNewFontIndex, word)) |
| return nNewFontIndex; |
| } |
| nNewFontIndex = GetFontIndex("Arial Unicode MS", DEFAULT_CHARSET, FALSE); |
| if (nNewFontIndex >= 0) { |
| if (KnowWord(nNewFontIndex, word)) |
| return nNewFontIndex; |
| } |
| return -1; |
| } |
| |
| int32_t CPWL_FontMap::CharCodeFromUnicode(int32_t nFontIndex, FX_WORD word) { |
| if (CPWL_FontMap_Data* pData = m_aData.GetAt(nFontIndex)) { |
| if (pData->pFont) { |
| if (pData->pFont->IsUnicodeCompatible()) { |
| int nCharCode = pData->pFont->CharCodeFromUnicode(word); |
| pData->pFont->GlyphFromCharCode(nCharCode); |
| return nCharCode; |
| } |
| if (word < 0xFF) |
| return word; |
| } |
| } |
| return -1; |
| } |
| |
| CFX_ByteString CPWL_FontMap::GetNativeFontName(int32_t nCharset) { |
| // searching native font is slow, so we must save time |
| for (int32_t i = 0, sz = m_aNativeFont.GetSize(); i < sz; i++) { |
| if (CPWL_FontMap_Native* pData = m_aNativeFont.GetAt(i)) { |
| if (pData->nCharset == nCharset) |
| return pData->sFontName; |
| } |
| } |
| |
| CFX_ByteString sNew = GetNativeFont(nCharset); |
| |
| if (!sNew.IsEmpty()) { |
| CPWL_FontMap_Native* pNewData = new CPWL_FontMap_Native; |
| pNewData->nCharset = nCharset; |
| pNewData->sFontName = sNew; |
| |
| m_aNativeFont.Add(pNewData); |
| } |
| |
| return sNew; |
| } |
| |
| void CPWL_FontMap::Empty() { |
| { |
| for (int32_t i = 0, sz = m_aData.GetSize(); i < sz; i++) |
| delete m_aData.GetAt(i); |
| |
| m_aData.RemoveAll(); |
| } |
| { |
| for (int32_t i = 0, sz = m_aNativeFont.GetSize(); i < sz; i++) |
| delete m_aNativeFont.GetAt(i); |
| |
| m_aNativeFont.RemoveAll(); |
| } |
| } |
| |
| void CPWL_FontMap::Initialize() { |
| GetFontIndex(kDefaultFontName, ANSI_CHARSET, FALSE); |
| } |
| |
| FX_BOOL CPWL_FontMap::IsStandardFont(const CFX_ByteString& sFontName) { |
| for (int32_t i = 0; i < FX_ArraySize(g_sDEStandardFontName); ++i) { |
| if (sFontName == g_sDEStandardFontName[i]) |
| return TRUE; |
| } |
| |
| return FALSE; |
| } |
| |
| int32_t CPWL_FontMap::FindFont(const CFX_ByteString& sFontName, |
| int32_t nCharset) { |
| for (int32_t i = 0, sz = m_aData.GetSize(); i < sz; i++) { |
| if (CPWL_FontMap_Data* pData = m_aData.GetAt(i)) { |
| if (nCharset == DEFAULT_CHARSET || nCharset == pData->nCharset) { |
| if (sFontName.IsEmpty() || pData->sFontName == sFontName) |
| return i; |
| } |
| } |
| } |
| |
| return -1; |
| } |
| |
| int32_t CPWL_FontMap::GetFontIndex(const CFX_ByteString& sFontName, |
| int32_t nCharset, |
| FX_BOOL bFind) { |
| int32_t nFontIndex = FindFont(EncodeFontAlias(sFontName, nCharset), nCharset); |
| if (nFontIndex >= 0) |
| return nFontIndex; |
| |
| CFX_ByteString sAlias; |
| CPDF_Font* pFont = NULL; |
| if (bFind) |
| pFont = FindFontSameCharset(sAlias, nCharset); |
| |
| if (!pFont) { |
| CFX_ByteString sTemp = sFontName; |
| pFont = AddFontToDocument(GetDocument(), sTemp, nCharset); |
| sAlias = EncodeFontAlias(sTemp, nCharset); |
| } |
| AddedFont(pFont, sAlias); |
| return AddFontData(pFont, sAlias, nCharset); |
| } |
| |
| int32_t CPWL_FontMap::GetPWLFontIndex(FX_WORD word, int32_t nCharset) { |
| int32_t nFind = -1; |
| |
| for (int32_t i = 0, sz = m_aData.GetSize(); i < sz; i++) { |
| if (CPWL_FontMap_Data* pData = m_aData.GetAt(i)) { |
| if (pData->nCharset == nCharset) { |
| nFind = i; |
| break; |
| } |
| } |
| } |
| |
| CPDF_Font* pNewFont = GetPDFFont(nFind); |
| |
| if (!pNewFont) |
| return -1; |
| |
| CFX_ByteString sAlias = EncodeFontAlias("Arial_Chrome", nCharset); |
| AddedFont(pNewFont, sAlias); |
| |
| return AddFontData(pNewFont, sAlias, nCharset); |
| } |
| |
| CPDF_Font* CPWL_FontMap::FindFontSameCharset(CFX_ByteString& sFontAlias, |
| int32_t nCharset) { |
| return NULL; |
| } |
| |
| int32_t CPWL_FontMap::AddFontData(CPDF_Font* pFont, |
| const CFX_ByteString& sFontAlias, |
| int32_t nCharset) { |
| CPWL_FontMap_Data* pNewData = new CPWL_FontMap_Data; |
| pNewData->pFont = pFont; |
| pNewData->sFontName = sFontAlias; |
| pNewData->nCharset = nCharset; |
| |
| m_aData.Add(pNewData); |
| |
| return m_aData.GetSize() - 1; |
| } |
| |
| void CPWL_FontMap::AddedFont(CPDF_Font* pFont, |
| const CFX_ByteString& sFontAlias) {} |
| |
| CFX_ByteString CPWL_FontMap::GetFontName(int32_t nFontIndex) { |
| if (nFontIndex >= 0 && nFontIndex < m_aData.GetSize()) { |
| if (CPWL_FontMap_Data* pData = m_aData.GetAt(nFontIndex)) { |
| return pData->sFontName; |
| } |
| } |
| |
| return ""; |
| } |
| |
| CFX_ByteString CPWL_FontMap::GetNativeFont(int32_t nCharset) { |
| if (nCharset == DEFAULT_CHARSET) |
| nCharset = GetNativeCharset(); |
| |
| CFX_ByteString sFontName = GetDefaultFontByCharset(nCharset); |
| if (m_pSystemHandler) { |
| if (m_pSystemHandler->FindNativeTrueTypeFont(nCharset, sFontName)) |
| return sFontName; |
| |
| sFontName = m_pSystemHandler->GetNativeTrueTypeFont(nCharset); |
| } |
| return sFontName; |
| } |
| |
| CPDF_Font* CPWL_FontMap::AddFontToDocument(CPDF_Document* pDoc, |
| CFX_ByteString& sFontName, |
| uint8_t nCharset) { |
| if (IsStandardFont(sFontName)) |
| return AddStandardFont(pDoc, sFontName); |
| |
| return AddSystemFont(pDoc, sFontName, nCharset); |
| } |
| |
| CPDF_Font* CPWL_FontMap::AddStandardFont(CPDF_Document* pDoc, |
| CFX_ByteString& sFontName) { |
| if (!pDoc) |
| return NULL; |
| |
| CPDF_Font* pFont = NULL; |
| |
| if (sFontName == "ZapfDingbats") { |
| pFont = pDoc->AddStandardFont(sFontName, NULL); |
| } else { |
| CPDF_FontEncoding fe(PDFFONT_ENCODING_WINANSI); |
| pFont = pDoc->AddStandardFont(sFontName, &fe); |
| } |
| |
| return pFont; |
| } |
| |
| CPDF_Font* CPWL_FontMap::AddSystemFont(CPDF_Document* pDoc, |
| CFX_ByteString& sFontName, |
| uint8_t nCharset) { |
| if (!pDoc) |
| return NULL; |
| |
| if (sFontName.IsEmpty()) |
| sFontName = GetNativeFont(nCharset); |
| if (nCharset == DEFAULT_CHARSET) |
| nCharset = GetNativeCharset(); |
| |
| if (m_pSystemHandler) |
| return m_pSystemHandler->AddNativeTrueTypeFontToPDF(pDoc, sFontName, |
| nCharset); |
| |
| return NULL; |
| } |
| |
| CFX_ByteString CPWL_FontMap::EncodeFontAlias(const CFX_ByteString& sFontName, |
| int32_t nCharset) { |
| CFX_ByteString sPostfix; |
| sPostfix.Format("_%02X", nCharset); |
| return EncodeFontAlias(sFontName) + sPostfix; |
| } |
| |
| CFX_ByteString CPWL_FontMap::EncodeFontAlias(const CFX_ByteString& sFontName) { |
| CFX_ByteString sRet = sFontName; |
| sRet.Remove(' '); |
| return sRet; |
| } |
| |
| int32_t CPWL_FontMap::GetFontMapCount() const { |
| return m_aData.GetSize(); |
| } |
| |
| const CPWL_FontMap_Data* CPWL_FontMap::GetFontMapData(int32_t nIndex) const { |
| if (nIndex >= 0 && nIndex < m_aData.GetSize()) { |
| return m_aData.GetAt(nIndex); |
| } |
| |
| return NULL; |
| } |
| |
| int32_t CPWL_FontMap::GetNativeCharset() { |
| uint8_t nCharset = ANSI_CHARSET; |
| int32_t iCodePage = FXSYS_GetACP(); |
| switch (iCodePage) { |
| case 932: // Japan |
| nCharset = SHIFTJIS_CHARSET; |
| break; |
| case 936: // Chinese (PRC, Singapore) |
| nCharset = GB2312_CHARSET; |
| break; |
| case 950: // Chinese (Taiwan; Hong Kong SAR, PRC) |
| nCharset = GB2312_CHARSET; |
| break; |
| case 1252: // Windows 3.1 Latin 1 (US, Western Europe) |
| nCharset = ANSI_CHARSET; |
| break; |
| case 874: // Thai |
| nCharset = THAI_CHARSET; |
| break; |
| case 949: // Korean |
| nCharset = HANGUL_CHARSET; |
| break; |
| case 1200: // Unicode (BMP of ISO 10646) |
| nCharset = ANSI_CHARSET; |
| break; |
| case 1250: // Windows 3.1 Eastern European |
| nCharset = EASTEUROPE_CHARSET; |
| break; |
| case 1251: // Windows 3.1 Cyrillic |
| nCharset = RUSSIAN_CHARSET; |
| break; |
| case 1253: // Windows 3.1 Greek |
| nCharset = GREEK_CHARSET; |
| break; |
| case 1254: // Windows 3.1 Turkish |
| nCharset = TURKISH_CHARSET; |
| break; |
| case 1255: // Hebrew |
| nCharset = HEBREW_CHARSET; |
| break; |
| case 1256: // Arabic |
| nCharset = ARABIC_CHARSET; |
| break; |
| case 1257: // Baltic |
| nCharset = BALTIC_CHARSET; |
| break; |
| case 1258: // Vietnamese |
| nCharset = VIETNAMESE_CHARSET; |
| break; |
| case 1361: // Korean(Johab) |
| nCharset = JOHAB_CHARSET; |
| break; |
| } |
| return nCharset; |
| } |
| |
| const CPWL_FontMap::CharsetFontMap CPWL_FontMap::defaultTTFMap[] = { |
| {ANSI_CHARSET, "Helvetica"}, {GB2312_CHARSET, "SimSun"}, |
| {CHINESEBIG5_CHARSET, "MingLiU"}, {SHIFTJIS_CHARSET, "MS Gothic"}, |
| {HANGUL_CHARSET, "Batang"}, {RUSSIAN_CHARSET, "Arial"}, |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_LINUX_ || \ |
| _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| {EASTEUROPE_CHARSET, "Arial"}, |
| #else |
| {EASTEUROPE_CHARSET, "Tahoma"}, |
| #endif |
| {ARABIC_CHARSET, "Arial"}, {-1, NULL}}; |
| |
| CFX_ByteString CPWL_FontMap::GetDefaultFontByCharset(int32_t nCharset) { |
| int i = 0; |
| while (defaultTTFMap[i].charset != -1) { |
| if (nCharset == defaultTTFMap[i].charset) |
| return defaultTTFMap[i].fontname; |
| ++i; |
| } |
| return ""; |
| } |
| |
| int32_t CPWL_FontMap::CharSetFromUnicode(FX_WORD word, int32_t nOldCharset) { |
| if (m_pSystemHandler && (-1 != m_pSystemHandler->GetCharSet())) |
| return m_pSystemHandler->GetCharSet(); |
| // to avoid CJK Font to show ASCII |
| if (word < 0x7F) |
| return ANSI_CHARSET; |
| // follow the old charset |
| if (nOldCharset != DEFAULT_CHARSET) |
| return nOldCharset; |
| |
| // find new charset |
| if ((word >= 0x4E00 && word <= 0x9FA5) || |
| (word >= 0xE7C7 && word <= 0xE7F3) || |
| (word >= 0x3000 && word <= 0x303F) || |
| (word >= 0x2000 && word <= 0x206F)) { |
| return GB2312_CHARSET; |
| } |
| |
| if (((word >= 0x3040) && (word <= 0x309F)) || |
| ((word >= 0x30A0) && (word <= 0x30FF)) || |
| ((word >= 0x31F0) && (word <= 0x31FF)) || |
| ((word >= 0xFF00) && (word <= 0xFFEF))) { |
| return SHIFTJIS_CHARSET; |
| } |
| |
| if (((word >= 0xAC00) && (word <= 0xD7AF)) || |
| ((word >= 0x1100) && (word <= 0x11FF)) || |
| ((word >= 0x3130) && (word <= 0x318F))) { |
| return HANGUL_CHARSET; |
| } |
| |
| if (word >= 0x0E00 && word <= 0x0E7F) |
| return THAI_CHARSET; |
| |
| if ((word >= 0x0370 && word <= 0x03FF) || (word >= 0x1F00 && word <= 0x1FFF)) |
| return GREEK_CHARSET; |
| |
| if ((word >= 0x0600 && word <= 0x06FF) || (word >= 0xFB50 && word <= 0xFEFC)) |
| return ARABIC_CHARSET; |
| |
| if (word >= 0x0590 && word <= 0x05FF) |
| return HEBREW_CHARSET; |
| |
| if (word >= 0x0400 && word <= 0x04FF) |
| return RUSSIAN_CHARSET; |
| |
| if (word >= 0x0100 && word <= 0x024F) |
| return EASTEUROPE_CHARSET; |
| |
| if (word >= 0x1E00 && word <= 0x1EFF) |
| return VIETNAMESE_CHARSET; |
| |
| return ANSI_CHARSET; |
| } |
| |
| CPWL_DocFontMap::CPWL_DocFontMap(IFX_SystemHandler* pSystemHandler, |
| CPDF_Document* pAttachedDoc) |
| : CPWL_FontMap(pSystemHandler), m_pAttachedDoc(pAttachedDoc) {} |
| |
| CPWL_DocFontMap::~CPWL_DocFontMap() {} |
| |
| CPDF_Document* CPWL_DocFontMap::GetDocument() { |
| return m_pAttachedDoc; |
| } |
