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cpdf_cmap.h
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1// Copyright 2017 The PDFium Authors
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7#ifndef CORE_FPDFAPI_FONT_CPDF_CMAP_H_
8#define CORE_FPDFAPI_FONT_CPDF_CMAP_H_
9
10#include <stdint.h>
11
12#include <vector>
13
14#include "core/fpdfapi/font/cpdf_cidfont.h"
15#include "core/fxcrt/fixed_size_data_vector.h"
16#include "core/fxcrt/retain_ptr.h"
17#include "core/fxcrt/unowned_ptr.h"
18#include "third_party/base/containers/span.h"
19
20namespace fxcmap {
21struct CMap;
22}
23
24enum class CIDCoding : uint8_t {
25 kUNKNOWN = 0,
26 kGB,
27 kBIG5,
28 kJIS,
29 kKOREA,
30 kUCS2,
31 kCID,
32 kUTF16,
33};
34
35class CPDF_CMap final : public Retainable {
36 public:
37 static constexpr size_t kDirectMapTableSize = 65536;
38
45
46 struct CodeRange {
48 uint8_t m_Lower[4];
49 uint8_t m_Upper[4];
50 };
51
52 struct CIDRange {
53 uint32_t m_StartCode;
54 uint32_t m_EndCode;
55 uint16_t m_StartCID;
56 };
57
59
60 bool IsLoaded() const { return m_bLoaded; }
61 bool IsVertWriting() const { return m_bVertical; }
62
63 uint16_t CIDFromCharCode(uint32_t charcode) const;
64
65 int GetCharSize(uint32_t charcode) const;
66 uint32_t GetNextChar(ByteStringView pString, size_t* pOffset) const;
67 size_t CountChar(ByteStringView pString) const;
68 int AppendChar(char* str, uint32_t charcode) const;
69
70 void SetVertical(bool vert) { m_bVertical = vert; }
71 void SetCodingScheme(CodingScheme scheme) { m_CodingScheme = scheme; }
72 void SetAdditionalMappings(std::vector<CIDRange> mappings);
73 void SetMixedFourByteLeadingRanges(std::vector<CodeRange> ranges);
74
75 CIDCoding GetCoding() const { return m_Coding; }
76 const fxcmap::CMap* GetEmbedMap() const { return m_pEmbedMap; }
77 CIDSet GetCharset() const { return m_Charset; }
78 void SetCharset(CIDSet set) { m_Charset = set; }
79
80 void SetDirectCharcodeToCIDTableRange(uint32_t start_code,
81 uint32_t end_code,
82 uint16_t start_cid);
84 return m_DirectCharcodeToCIDTable.empty();
85 }
86
87 private:
88 explicit CPDF_CMap(ByteStringView bsPredefinedName);
89 explicit CPDF_CMap(pdfium::span<const uint8_t> spEmbeddedData);
90 ~CPDF_CMap() override;
91
92 bool m_bLoaded = false;
93 bool m_bVertical = false;
94 CIDSet m_Charset = CIDSET_UNKNOWN;
95 CodingScheme m_CodingScheme = TwoBytes;
97 std::vector<bool> m_MixedTwoByteLeadingBytes;
98 std::vector<CodeRange> m_MixedFourByteLeadingRanges;
99 FixedSizeDataVector<uint16_t> m_DirectCharcodeToCIDTable;
100 std::vector<CIDRange> m_AdditionalCharcodeToCIDMappings;
101 UnownedPtr<const fxcmap::CMap> m_pEmbedMap;
102};
103
104#endif // CORE_FPDFAPI_FONT_CPDF_CMAP_H_
CFX_FloatRect(const FX_RECT &rect)
FX_RECT GetOuterRect() const
static constexpr uint32_t MakeTag(char c1, char c2, char c3, char c4)
CFX_FloatRect TransformRect(const CFX_FloatRect &rect) const
CFX_Matrix(float a1, float b1, float c1, float d1, float e1, float f1)
~CPDF_CIDFont() override
size_t CountChar(ByteStringView pString) const override
uint32_t GetNextChar(ByteStringView pString, size_t *pOffset) const override
bool IsCIDFont() const override
const uint8_t * GetCIDTransform(uint16_t cid) const
bool IsUnicodeCompatible() const override
int AppendChar(char *str, uint32_t charcode) const override
CFX_Point16 GetVertOrigin(uint16_t cid) const
int GetCharWidthF(uint32_t charcode) override
const CPDF_CIDFont * AsCIDFont() const override
uint16_t CIDFromCharCode(uint32_t charcode) const
bool Load() override
int GlyphFromCharCode(uint32_t charcode, bool *pVertGlyph) override
int16_t GetVertWidth(uint16_t cid) const
FX_RECT GetCharBBox(uint32_t charcode) override
static float CIDTransformToFloat(uint8_t ch)
bool IsVertWriting() const override
uint32_t CharCodeFromUnicode(wchar_t Unicode) const override
int GetCharSize(uint32_t charcode) const
WideString UnicodeFromCharCode(uint32_t charcode) const override
CPDF_CIDFont * AsCIDFont() override
static CIDSet CharsetFromOrdering(ByteStringView ordering)
bool IsVertWriting() const
Definition cpdf_cmap.h:61
void SetVertical(bool vert)
Definition cpdf_cmap.h:70
~CPDF_CMap() override
static constexpr size_t kDirectMapTableSize
Definition cpdf_cmap.h:37
CIDCoding GetCoding() const
Definition cpdf_cmap.h:75
size_t CountChar(ByteStringView pString) const
uint32_t GetNextChar(ByteStringView pString, size_t *pOffset) const
int AppendChar(char *str, uint32_t charcode) const
void SetCharset(CIDSet set)
Definition cpdf_cmap.h:78
bool IsLoaded() const
Definition cpdf_cmap.h:60
@ MixedTwoBytes
Definition cpdf_cmap.h:42
@ MixedFourBytes
Definition cpdf_cmap.h:43
const fxcmap::CMap * GetEmbedMap() const
Definition cpdf_cmap.h:76
uint16_t CIDFromCharCode(uint32_t charcode) const
void SetAdditionalMappings(std::vector< CIDRange > mappings)
int GetCharSize(uint32_t charcode) const
bool IsDirectCharcodeToCIDTableIsEmpty() const
Definition cpdf_cmap.h:83
void SetMixedFourByteLeadingRanges(std::vector< CodeRange > ranges)
CIDSet GetCharset() const
Definition cpdf_cmap.h:77
void SetDirectCharcodeToCIDTableRange(uint32_t start_code, uint32_t end_code, uint16_t start_cid)
void SetCodingScheme(CodingScheme scheme)
Definition cpdf_cmap.h:71
static CPDF_FontGlobals * GetInstance()
void LoadFontDescriptor(const CPDF_Dictionary *pFontDesc)
virtual uint32_t CharCodeFromUnicode(wchar_t Unicode) const
static bool UseTTCharmapMacRoman(const RetainPtr< CFX_Face > &face)
Definition cpdf_font.h:152
static bool UseTTCharmapMSUnicode(const RetainPtr< CFX_Face > &face)
Definition cpdf_font.h:146
virtual WideString UnicodeFromCharCode(uint32_t charcode) const
static FX_RECT GetCharBBoxForFace(const RetainPtr< CFX_Face > &face)
void CheckFontMetrics()
bool IsEmbedded() const
Definition cpdf_font.h:101
bool operator==(const char *ptr) const
WideString(wchar_t ch)
CharType operator[](const size_t index) const
Definition widestring.h:146
bool IsEmpty() const
Definition widestring.h:118
CIDSet
@ CIDSET_JAPAN1
@ CIDSET_UNKNOWN
@ CIDSET_GB1
@ CIDSET_NUM_SETS
CIDCoding
Definition cpdf_cmap.h:24
uint32_t CharCodeFromUnicodeForEncoding(fxge::FontEncoding encoding, wchar_t unicode)
FontEncoding
FX_CodePage
Definition fx_codepage.h:18
wchar_t UnicodeFromAdobeName(const char *name)
Definition fx_font.cpp:138
#define FXFONT_FW_NORMAL
Definition fx_font.h:22
constexpr wchar_t kBoxDrawingsLightVerical
Definition fx_unicode.h:102
#define CONSTRUCT_VIA_MAKE_RETAIN
Definition retain_ptr.h:224
uint16_t m_StartCID
Definition cpdf_cmap.h:55
uint32_t m_StartCode
Definition cpdf_cmap.h:53
uint8_t m_Lower[4]
Definition cpdf_cmap.h:48
uint8_t m_Upper[4]
Definition cpdf_cmap.h:49
FX_RECT & operator=(const FX_RECT &that)=default
int32_t bottom
int32_t right
int32_t top
constexpr FX_RECT(int l, int t, int r, int b)