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// 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_FONT_CPDF_CIDFONT_H_
#define CORE_FPDFAPI_FONT_CPDF_CIDFONT_H_
#include <memory>
#include <vector>
#include "core/fpdfapi/font/cpdf_font.h"
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxcrt/unowned_ptr.h"
enum CIDSet : uint8_t {
CIDSET_UNKNOWN,
CIDSET_GB1,
CIDSET_CNS1,
CIDSET_JAPAN1,
CIDSET_KOREA1,
CIDSET_UNICODE,
CIDSET_NUM_SETS
};
class CFX_CTTGSUBTable;
class CPDF_Array;
class CPDF_CID2UnicodeMap;
class CPDF_CMap;
class CPDF_StreamAcc;
class CPDF_CIDFont : public CPDF_Font {
public:
CPDF_CIDFont();
~CPDF_CIDFont() override;
static float CIDTransformToFloat(uint8_t ch);
// CPDF_Font:
bool IsCIDFont() const override;
const CPDF_CIDFont* AsCIDFont() const override;
CPDF_CIDFont* AsCIDFont() override;
int GlyphFromCharCode(uint32_t charcode, bool* pVertGlyph) override;
uint32_t GetCharWidthF(uint32_t charcode) override;
FX_RECT GetCharBBox(uint32_t charcode) override;
uint32_t GetNextChar(const ByteStringView& pString,
size_t& offset) const override;
size_t CountChar(const ByteStringView& pString) const override;
int AppendChar(char* str, uint32_t charcode) const override;
bool IsVertWriting() const override;
bool IsUnicodeCompatible() const override;
bool Load() override;
WideString UnicodeFromCharCode(uint32_t charcode) const override;
uint32_t CharCodeFromUnicode(wchar_t Unicode) const override;
uint16_t CIDFromCharCode(uint32_t charcode) const;
const uint8_t* GetCIDTransform(uint16_t CID) const;
short GetVertWidth(uint16_t CID) const;
void GetVertOrigin(uint16_t CID, short& vx, short& vy) const;
int GetCharSize(uint32_t charcode) const;
protected:
void LoadGB2312();
int GetGlyphIndex(uint32_t unicodeb, bool* pVertGlyph);
int GetVerticalGlyph(int index, bool* pVertGlyph);
void LoadMetricsArray(CPDF_Array* pArray,
std::vector<uint32_t>* result,
int nElements);
void LoadSubstFont();
wchar_t GetUnicodeFromCharCode(uint32_t charcode) const;
RetainPtr<CPDF_CMap> m_pCMap;
UnownedPtr<CPDF_CID2UnicodeMap> m_pCID2UnicodeMap;
CIDSet m_Charset;
bool m_bType1;
bool m_bCIDIsGID;
uint16_t m_DefaultWidth;
RetainPtr<CPDF_StreamAcc> m_pStreamAcc;
bool m_bAnsiWidthsFixed;
std::vector<uint32_t> m_WidthList;
short m_DefaultVY;
short m_DefaultW1;
std::vector<uint32_t> m_VertMetrics;
bool m_bAdobeCourierStd;
std::unique_ptr<CFX_CTTGSUBTable> m_pTTGSUBTable;
FX_RECT m_CharBBox[256];
};
#endif // CORE_FPDFAPI_FONT_CPDF_CIDFONT_H_
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