diff options
Diffstat (limited to 'fpdfsdk/src/pdfwindow/PWL_FontMap.cpp')
| -rw-r--r-- | fpdfsdk/src/pdfwindow/PWL_FontMap.cpp | 601 |
1 files changed, 601 insertions, 0 deletions
diff --git a/fpdfsdk/src/pdfwindow/PWL_FontMap.cpp b/fpdfsdk/src/pdfwindow/PWL_FontMap.cpp new file mode 100644 index 0000000000..1e2259fe50 --- /dev/null +++ b/fpdfsdk/src/pdfwindow/PWL_FontMap.cpp @@ -0,0 +1,601 @@ +// 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 "../../include/pdfwindow/PDFWindow.h"
+#include "../../include/pdfwindow/PWL_Wnd.h"
+#include "../../include/pdfwindow/PWL_FontMap.h"
+
+#define DEFAULT_FONT_NAME "Helvetica"
+
+/* ------------------------------ CPWL_FontMap ------------------------------ */
+
+CPWL_FontMap::CPWL_FontMap(IFX_SystemHandler* pSystemHandler) :
+ m_pPDFDoc(NULL),
+ m_pSystemHandler(pSystemHandler)
+{
+ ASSERT(m_pSystemHandler != NULL);
+}
+
+CPWL_FontMap::~CPWL_FontMap()
+{
+ if (m_pPDFDoc)
+ {
+ 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 = FX_NEW CPDF_Document;
+ m_pPDFDoc->CreateNewDoc();
+ }
+ }
+
+ return m_pPDFDoc;
+}
+
+CPDF_Font* CPWL_FontMap::GetPDFFont(FX_INT32 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(FX_INT32 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(FX_INT32 nFontIndex, FX_WORD word)
+{
+ if (nFontIndex >=0 && nFontIndex < m_aData.GetSize())
+ {
+ if (m_aData.GetAt(nFontIndex))
+ {
+ return CharCodeFromUnicode(nFontIndex, word) >= 0;
+ }
+ }
+
+ return FALSE;
+}
+
+FX_INT32 CPWL_FontMap::GetWordFontIndex(FX_WORD word, FX_INT32 nCharset, FX_INT32 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;
+ }
+ }
+ }
+ }
+
+ FX_INT32 nNewFontIndex = -1;
+
+ nNewFontIndex = this->GetFontIndex(GetNativeFontName(nCharset), nCharset, TRUE);
+ if (nNewFontIndex >= 0)
+ {
+ if (KnowWord(nNewFontIndex, word))
+ return nNewFontIndex;
+ }
+
+ nNewFontIndex = this->GetFontIndex("Arial Unicode MS", DEFAULT_CHARSET, FALSE);
+ if (nNewFontIndex >= 0)
+ {
+ if (KnowWord(nNewFontIndex, word))
+ return nNewFontIndex;
+ }
+
+ return -1;
+}
+
+FX_INT32 CPWL_FontMap::CharCodeFromUnicode(FX_INT32 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;
+ }
+ else
+ {
+ if (word < 0xFF)
+ return word;
+ }
+ }
+ }
+
+ return -1;
+}
+
+CFX_ByteString CPWL_FontMap::GetNativeFontName(FX_INT32 nCharset)
+{
+ //searching native font is slow, so we must save time
+ for (FX_INT32 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 (FX_INT32 i=0, sz=m_aData.GetSize(); i<sz; i++)
+ delete m_aData.GetAt(i);
+
+ m_aData.RemoveAll();
+ }
+ {
+ for (FX_INT32 i=0, sz=m_aNativeFont.GetSize(); i<sz; i++)
+ delete m_aNativeFont.GetAt(i);
+
+ m_aNativeFont.RemoveAll();
+ }
+}
+
+void CPWL_FontMap::Initial(FX_LPCSTR fontname)
+{
+ CFX_ByteString sFontName = fontname;
+
+ if (sFontName.IsEmpty())
+ sFontName = DEFAULT_FONT_NAME;
+
+ GetFontIndex(sFontName, ANSI_CHARSET, FALSE);
+
+ //GetFontIndex(this->GetNativeFontName(nCharset), nCharset);
+}
+
+
+/*
+List of currently supported standard fonts:
+Courier, Courier-Bold, Courier-BoldOblique, Courier-Oblique
+Helvetica, Helvetica-Bold, Helvetica-BoldOblique, Helvetica-Oblique
+Times-Roman, Times-Bold, Times-Italic, Times-BoldItalic
+Symbol, ZapfDingbats
+*/
+
+const char* 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"};
+
+FX_BOOL CPWL_FontMap::IsStandardFont(const CFX_ByteString& sFontName)
+{
+ for (FX_INT32 i=0; i<14; i++)
+ {
+ if (sFontName == g_sDEStandardFontName[i])
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+FX_INT32 CPWL_FontMap::FindFont(const CFX_ByteString& sFontName, FX_INT32 nCharset)
+{
+ for (FX_INT32 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;
+}
+
+FX_INT32 CPWL_FontMap::GetFontIndex(const CFX_ByteString& sFontName, FX_INT32 nCharset, FX_BOOL bFind)
+{
+ FX_INT32 nFontIndex = FindFont(EncodeFontAlias(sFontName, nCharset), nCharset);
+ if (nFontIndex >= 0) return nFontIndex;
+
+// nFontIndex = FindFont("", 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);
+
+ /*
+ if (FindFont(sAlias))
+ {
+ sAlias = EncodeFontAlias(sTemp, nCharset);
+ }
+ else
+ */
+ {
+ sAlias = EncodeFontAlias(sTemp, nCharset);
+ }
+ }
+
+ AddedFont(pFont, sAlias);
+
+ return AddFontData(pFont, sAlias, nCharset);
+}
+
+FX_INT32 CPWL_FontMap::GetPWLFontIndex(FX_WORD word, FX_INT32 nCharset)
+{
+ FX_INT32 nFind = -1;
+
+ for (FX_INT32 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;
+
+ /*
+ if (CPDF_Font* pFont = GetPDFFont(nFind))
+ {
+ PWLFont.AddWordToFontDict(pFontDict, word);
+ }
+ */
+
+#ifdef FOXIT_CHROME_BUILD
+ CFX_ByteString sAlias = EncodeFontAlias("Arial_Chrome", nCharset);
+#else
+ CFX_ByteString sAlias = EncodeFontAlias("Arial_Foxit", nCharset);
+#endif
+ AddedFont(pNewFont, sAlias);
+
+ return AddFontData(pNewFont, sAlias, nCharset);
+}
+
+CPDF_Font* CPWL_FontMap::FindFontSameCharset(CFX_ByteString& sFontAlias, FX_INT32 nCharset)
+{
+ return NULL;
+}
+
+FX_INT32 CPWL_FontMap::AddFontData(CPDF_Font* pFont, const CFX_ByteString& sFontAlias, FX_INT32 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(FX_INT32 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(FX_INT32 nCharset)
+{
+ CFX_ByteString sFontName;
+
+ if (nCharset == DEFAULT_CHARSET)
+ nCharset = GetNativeCharset();
+
+ 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, FX_BYTE nCharset)
+{
+ if (IsStandardFont(sFontName))
+ return AddStandardFont(pDoc, sFontName);
+ else
+ 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, FX_BYTE 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, FX_INT32 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;
+}
+
+FX_INT32 CPWL_FontMap::GetFontMapCount() const
+{
+ return m_aData.GetSize();
+}
+
+const CPWL_FontMap_Data* CPWL_FontMap::GetFontMapData(FX_INT32 nIndex) const
+{
+ if (nIndex >=0 && nIndex < m_aData.GetSize())
+ {
+ return m_aData.GetAt(nIndex);
+ }
+
+ return NULL;
+}
+
+FX_INT32 CPWL_FontMap::GetNativeCharset()
+{
+ FX_BYTE nCharset = ANSI_CHARSET;
+ FX_INT32 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" },
+ { EASTEUROPE_CHARSET, "Tahoma" },
+ { ARABIC_CHARSET, "Arial" },
+ { -1, NULL }
+};
+
+CFX_ByteString CPWL_FontMap::GetDefaultFontByCharset(FX_INT32 nCharset)
+{
+ int i = 0;
+ while (defaultTTFMap[i].charset != -1) {
+ if (nCharset == defaultTTFMap[i].charset)
+ return defaultTTFMap[i].fontname;
+ ++i;
+ }
+ return "";
+}
+
+FX_INT32 CPWL_FontMap::CharSetFromUnicode(FX_WORD word, FX_INT32 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::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;
+}
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