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// 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
#ifndef CORE_FPDFAPI_FPDF_FONT_FONT_INT_H_
#define CORE_FPDFAPI_FPDF_FONT_FONT_INT_H_
#include <map>
#include <memory>
#include "core/include/fpdfapi/fpdf_resource.h"
#include "core/include/fxcrt/fx_basic.h"
class CPDF_CID2UnicodeMap;
class CPDF_CMap;
class CPDF_Font;
class CPDF_Stream;
typedef void* FXFT_Library;
short TT2PDF(int m, FXFT_Face face);
FX_BOOL FT_UseTTCharmap(FXFT_Face face, int platform_id, int encoding_id);
class CPDF_CMapManager {
public:
CPDF_CMapManager();
~CPDF_CMapManager();
void* GetPackage(FX_BOOL bPrompt);
CPDF_CMap* GetPredefinedCMap(const CFX_ByteString& name, FX_BOOL bPromptCJK);
CPDF_CID2UnicodeMap* GetCID2UnicodeMap(CIDSet charset, FX_BOOL bPromptCJK);
void ReloadAll();
private:
CPDF_CMap* LoadPredefinedCMap(const CFX_ByteString& name, FX_BOOL bPromptCJK);
CPDF_CID2UnicodeMap* LoadCID2UnicodeMap(CIDSet charset, FX_BOOL bPromptCJK);
FX_BOOL m_bPrompted;
std::map<CFX_ByteString, CPDF_CMap*> m_CMaps;
CPDF_CID2UnicodeMap* m_CID2UnicodeMaps[6];
};
class CFX_StockFontArray {
public:
CFX_StockFontArray();
~CFX_StockFontArray();
// Takes ownership of |pFont|.
void SetFont(int index, CPDF_Font* pFont);
CPDF_Font* GetFont(int index) const;
private:
std::unique_ptr<CPDF_Font> m_StockFonts[14];
};
class CPDF_FontGlobals {
public:
CPDF_FontGlobals();
~CPDF_FontGlobals();
void Clear(CPDF_Document* pDoc);
CPDF_Font* Find(CPDF_Document* pDoc, int index);
// Takes ownership of |pFont|.
void Set(CPDF_Document* key, int index, CPDF_Font* pFont);
CPDF_CMapManager m_CMapManager;
struct {
const struct FXCMAP_CMap* m_pMapList;
int m_Count;
} m_EmbeddedCharsets[CIDSET_NUM_SETS];
struct {
const uint16_t* m_pMap;
int m_Count;
} m_EmbeddedToUnicodes[CIDSET_NUM_SETS];
private:
std::map<CPDF_Document*, std::unique_ptr<CFX_StockFontArray>> m_StockMap;
};
struct CMap_CodeRange {
int m_CharSize;
uint8_t m_Lower[4];
uint8_t m_Upper[4];
};
class CPDF_CMapParser {
public:
CPDF_CMapParser();
~CPDF_CMapParser() {}
FX_BOOL Initialize(CPDF_CMap* pMap);
void ParseWord(const CFX_ByteStringC& str);
CFX_BinaryBuf m_AddMaps;
private:
friend class fpdf_font_cid_CMap_GetCode_Test;
friend class fpdf_font_cid_CMap_GetCodeRange_Test;
static FX_DWORD CMap_GetCode(const CFX_ByteStringC& word);
static bool CMap_GetCodeRange(CMap_CodeRange& range,
const CFX_ByteStringC& first,
const CFX_ByteStringC& second);
CPDF_CMap* m_pCMap;
int m_Status;
int m_CodeSeq;
FX_DWORD m_CodePoints[4];
CFX_ArrayTemplate<CMap_CodeRange> m_CodeRanges;
CFX_ByteString m_Registry, m_Ordering, m_Supplement;
CFX_ByteString m_LastWord;
};
#define CIDCODING_UNKNOWN 0
#define CIDCODING_GB 1
#define CIDCODING_BIG5 2
#define CIDCODING_JIS 3
#define CIDCODING_KOREA 4
#define CIDCODING_UCS2 5
#define CIDCODING_CID 6
#define CIDCODING_UTF16 7
class CPDF_CMap {
public:
CPDF_CMap();
FX_BOOL LoadPredefined(CPDF_CMapManager* pMgr,
const FX_CHAR* name,
FX_BOOL bPromptCJK);
FX_BOOL LoadEmbedded(const uint8_t* pData, FX_DWORD dwSize);
void Release();
FX_BOOL IsLoaded() const { return m_bLoaded; }
FX_BOOL IsVertWriting() const { return m_bVertical; }
uint16_t CIDFromCharCode(FX_DWORD charcode) const;
FX_DWORD CharCodeFromCID(uint16_t CID) const;
int GetCharSize(FX_DWORD charcode) const;
FX_DWORD GetNextChar(const FX_CHAR* pString, int nStrLen, int& offset) const;
int CountChar(const FX_CHAR* pString, int size) const;
int AppendChar(FX_CHAR* str, FX_DWORD charcode) const;
typedef enum {
OneByte,
TwoBytes,
MixedTwoBytes,
MixedFourBytes
} CodingScheme;
protected:
~CPDF_CMap();
friend class CPDF_CMapParser;
friend class CPDF_CMapManager;
friend class CPDF_CIDFont;
protected:
CFX_ByteString m_PredefinedCMap;
FX_BOOL m_bVertical;
CIDSet m_Charset;
int m_Coding;
CodingScheme m_CodingScheme;
int m_nCodeRanges;
uint8_t* m_pLeadingBytes;
uint16_t* m_pMapping;
uint8_t* m_pAddMapping;
FX_BOOL m_bLoaded;
const FXCMAP_CMap* m_pEmbedMap;
CPDF_CMap* m_pUseMap;
};
class CPDF_CID2UnicodeMap {
public:
CPDF_CID2UnicodeMap();
~CPDF_CID2UnicodeMap();
FX_BOOL Initialize();
FX_BOOL IsLoaded();
void Load(CPDF_CMapManager* pMgr, CIDSet charset, FX_BOOL bPromptCJK);
FX_WCHAR UnicodeFromCID(uint16_t CID);
protected:
CIDSet m_Charset;
const uint16_t* m_pEmbeddedMap;
FX_DWORD m_EmbeddedCount;
};
class CPDF_ToUnicodeMap {
public:
void Load(CPDF_Stream* pStream);
CFX_WideString Lookup(FX_DWORD charcode);
FX_DWORD ReverseLookup(FX_WCHAR unicode);
protected:
std::map<FX_DWORD, FX_DWORD> m_Map;
CPDF_CID2UnicodeMap* m_pBaseMap;
CFX_WideTextBuf m_MultiCharBuf;
private:
friend class fpdf_font_StringToCode_Test;
friend class fpdf_font_StringToWideString_Test;
static FX_DWORD StringToCode(const CFX_ByteStringC& str);
static CFX_WideString StringToWideString(const CFX_ByteStringC& str);
};
void FPDFAPI_LoadCID2UnicodeMap(CIDSet charset,
const uint16_t*& pMap,
FX_DWORD& count);
#endif // CORE_FPDFAPI_FPDF_FONT_FONT_INT_H_
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