// 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
|
|
#ifndef CORE_FPDFAPI_FPDF_FONT_INCLUDE_CPDF_FONT_H_
|
#define CORE_FPDFAPI_FPDF_FONT_INCLUDE_CPDF_FONT_H_
|
|
#include <memory>
|
|
#include "core/fxcrt/include/fx_string.h"
|
#include "core/fxcrt/include/fx_system.h"
|
#include "core/fxge/include/fx_font.h"
|
|
#define PDFFONT_FIXEDPITCH 1
|
#define PDFFONT_SERIF 2
|
#define PDFFONT_SYMBOLIC 4
|
#define PDFFONT_SCRIPT 8
|
#define PDFFONT_NONSYMBOLIC 32
|
#define PDFFONT_ITALIC 64
|
#define PDFFONT_ALLCAP 0x10000
|
#define PDFFONT_SMALLCAP 0x20000
|
#define PDFFONT_FORCEBOLD 0x40000
|
#define PDFFONT_USEEXTERNATTR 0x80000
|
|
class CFX_SubstFont;
|
class CPDF_CIDFont;
|
class CPDF_Dictionary;
|
class CPDF_Document;
|
class CPDF_Object;
|
class CPDF_StreamAcc;
|
class CPDF_TrueTypeFont;
|
class CPDF_Type1Font;
|
class CPDF_Type3Font;
|
class CPDF_ToUnicodeMap;
|
|
class CPDF_Font {
|
public:
|
static CPDF_Font* CreateFontF(CPDF_Document* pDoc,
|
CPDF_Dictionary* pFontDict);
|
static CPDF_Font* GetStockFont(CPDF_Document* pDoc,
|
const CFX_ByteStringC& fontname);
|
static const uint32_t kInvalidCharCode = static_cast<uint32_t>(-1);
|
|
virtual ~CPDF_Font();
|
|
virtual bool IsType1Font() const;
|
virtual bool IsTrueTypeFont() const;
|
virtual bool IsType3Font() const;
|
virtual bool IsCIDFont() const;
|
virtual const CPDF_Type1Font* AsType1Font() const;
|
virtual CPDF_Type1Font* AsType1Font();
|
virtual const CPDF_TrueTypeFont* AsTrueTypeFont() const;
|
virtual CPDF_TrueTypeFont* AsTrueTypeFont();
|
virtual const CPDF_Type3Font* AsType3Font() const;
|
virtual CPDF_Type3Font* AsType3Font();
|
virtual const CPDF_CIDFont* AsCIDFont() const;
|
virtual CPDF_CIDFont* AsCIDFont();
|
|
virtual FX_BOOL IsVertWriting() const;
|
virtual FX_BOOL IsUnicodeCompatible() const;
|
virtual uint32_t GetNextChar(const FX_CHAR* pString,
|
int nStrLen,
|
int& offset) const;
|
virtual int CountChar(const FX_CHAR* pString, int size) const;
|
virtual int AppendChar(FX_CHAR* buf, uint32_t charcode) const;
|
virtual int GetCharSize(uint32_t charcode) const;
|
virtual int GlyphFromCharCode(uint32_t charcode, bool* pVertGlyph) = 0;
|
virtual int GlyphFromCharCodeExt(uint32_t charcode);
|
virtual CFX_WideString UnicodeFromCharCode(uint32_t charcode) const;
|
virtual uint32_t CharCodeFromUnicode(FX_WCHAR Unicode) const;
|
|
const CFX_ByteString& GetBaseFont() const { return m_BaseFont; }
|
CFX_SubstFont* GetSubstFont() const { return m_Font.GetSubstFont(); }
|
uint32_t GetFlags() const { return m_Flags; }
|
FX_BOOL IsEmbedded() const { return IsType3Font() || m_pFontFile != nullptr; }
|
CPDF_StreamAcc* GetFontFile() const { return m_pFontFile; }
|
CPDF_Dictionary* GetFontDict() const { return m_pFontDict; }
|
FX_BOOL IsStandardFont() const;
|
FXFT_Face GetFace() const { return m_Font.GetFace(); }
|
void AppendChar(CFX_ByteString& str, uint32_t charcode) const;
|
|
void GetFontBBox(FX_RECT& rect) const { rect = m_FontBBox; }
|
int GetTypeAscent() const { return m_Ascent; }
|
int GetTypeDescent() const { return m_Descent; }
|
int GetItalicAngle() const { return m_ItalicAngle; }
|
int GetStemV() const { return m_StemV; }
|
int GetStringWidth(const FX_CHAR* pString, int size);
|
|
virtual int GetCharWidthF(uint32_t charcode, int level = 0) = 0;
|
virtual FX_RECT GetCharBBox(uint32_t charcode, int level = 0) = 0;
|
|
CPDF_Document* m_pDocument;
|
CFX_Font m_Font;
|
|
protected:
|
CPDF_Font();
|
|
virtual FX_BOOL Load() = 0;
|
|
FX_BOOL Initialize();
|
void LoadUnicodeMap() const; // logically const only.
|
void LoadPDFEncoding(CPDF_Object* pEncoding,
|
int& iBaseEncoding,
|
CFX_ByteString*& pCharNames,
|
FX_BOOL bEmbedded,
|
FX_BOOL bTrueType);
|
void LoadFontDescriptor(CPDF_Dictionary* pDict);
|
void CheckFontMetrics();
|
|
const FX_CHAR* GetAdobeCharName(int iBaseEncoding,
|
const CFX_ByteString* pCharNames,
|
int charcode);
|
|
CFX_ByteString m_BaseFont;
|
CPDF_StreamAcc* m_pFontFile;
|
CPDF_Dictionary* m_pFontDict;
|
mutable std::unique_ptr<CPDF_ToUnicodeMap> m_pToUnicodeMap;
|
mutable FX_BOOL m_bToUnicodeLoaded;
|
int m_Flags;
|
FX_RECT m_FontBBox;
|
int m_StemV;
|
int m_Ascent;
|
int m_Descent;
|
int m_ItalicAngle;
|
};
|
|
#endif // CORE_FPDFAPI_FPDF_FONT_INCLUDE_CPDF_FONT_H_
|
