core/fpdfapi/fpdf_font/include/cpdf_font.h - Issue 2276653002: Add fallback fonts in pdfium

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Issue 2276653002: Add fallback fonts in pdfium (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master

Patch Set: Address comments Created 4 years, 3 months ago

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1 // Copyright 2016 PDFium Authors. All rights reserved.	1 // Copyright 2016 PDFium Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style license that can be	2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.	3 // found in the LICENSE file.

4	4

5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com	5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

6	6

7 #ifndef CORE_FPDFAPI_FPDF_FONT_INCLUDE_CPDF_FONT_H_	7 #ifndef CORE_FPDFAPI_FPDF_FONT_INCLUDE_CPDF_FONT_H_

8 #define CORE_FPDFAPI_FPDF_FONT_INCLUDE_CPDF_FONT_H_	8 #define CORE_FPDFAPI_FPDF_FONT_INCLUDE_CPDF_FONT_H_

9	9

10 #include <memory>	10 #include <memory>

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81 FX_BOOL IsStandardFont() const;	81 FX_BOOL IsStandardFont() const;

82 FXFT_Face GetFace() const { return m_Font.GetFace(); }	82 FXFT_Face GetFace() const { return m_Font.GetFace(); }

83 void AppendChar(CFX_ByteString& str, uint32_t charcode) const;	83 void AppendChar(CFX_ByteString& str, uint32_t charcode) const;

84	84

85 void GetFontBBox(FX_RECT& rect) const { rect = m_FontBBox; }	85 void GetFontBBox(FX_RECT& rect) const { rect = m_FontBBox; }

86 int GetTypeAscent() const { return m_Ascent; }	86 int GetTypeAscent() const { return m_Ascent; }

87 int GetTypeDescent() const { return m_Descent; }	87 int GetTypeDescent() const { return m_Descent; }

88 int GetItalicAngle() const { return m_ItalicAngle; }	88 int GetItalicAngle() const { return m_ItalicAngle; }

89 int GetStemV() const { return m_StemV; }	89 int GetStemV() const { return m_StemV; }

90 int GetStringWidth(const FX_CHAR* pString, int size);	90 int GetStringWidth(const FX_CHAR* pString, int size);

	91 uint32_t FallbackFontFromCharcode(uint32_t charcode, bool* pVertGlyph);

	92 int FallbackGlyphFromCharcode(int fallbackFont,

	93 uint32_t charcode,

	94 bool* pVertGlyph);

91	95

92 virtual int GetCharWidthF(uint32_t charcode, int level = 0) = 0;	96 virtual int GetCharWidthF(uint32_t charcode, int level = 0) = 0;

93 virtual FX_RECT GetCharBBox(uint32_t charcode, int level = 0) = 0;	97 virtual FX_RECT GetCharBBox(uint32_t charcode, int level = 0) = 0;

94	98

95 CPDF_Document* m_pDocument;	99 CPDF_Document* m_pDocument;

96 CFX_Font m_Font;	100 CFX_Font m_Font;

	101 std::vector<std::unique_ptr<CFX_Font>> m_FontFallbacks;

97	102

98 protected:	103 protected:

99 CPDF_Font();	104 CPDF_Font();

100	105

101 virtual FX_BOOL Load() = 0;	106 virtual FX_BOOL Load() = 0;

102	107

103 FX_BOOL Initialize();	108 FX_BOOL Initialize();

104 void LoadUnicodeMap() const; // logically const only.	109 void LoadUnicodeMap() const; // logically const only.

105 void LoadPDFEncoding(CPDF_Object* pEncoding,	110 void LoadPDFEncoding(CPDF_Object* pEncoding,

106 int& iBaseEncoding,	111 int& iBaseEncoding,

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121 mutable FX_BOOL m_bToUnicodeLoaded;	126 mutable FX_BOOL m_bToUnicodeLoaded;

122 int m_Flags;	127 int m_Flags;

123 FX_RECT m_FontBBox;	128 FX_RECT m_FontBBox;

124 int m_StemV;	129 int m_StemV;

125 int m_Ascent;	130 int m_Ascent;

126 int m_Descent;	131 int m_Descent;

127 int m_ItalicAngle;	132 int m_ItalicAngle;

128 };	133 };

129	134

130 #endif // CORE_FPDFAPI_FPDF_FONT_INCLUDE_CPDF_FONT_H_	135 #endif // CORE_FPDFAPI_FPDF_FONT_INCLUDE_CPDF_FONT_H_

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