xfa/fgas/font/fgas_gefont.h - Issue 2524493002: Clean up CFGAS_GEFont

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Issue 2524493002: Clean up CFGAS_GEFont (Closed)

Patch Set: Created 4 years ago

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1 // Copyright 2014 PDFium Authors. All rights reserved.

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 XFA_FGAS_FONT_FGAS_GEFONT_H_

8 #define XFA_FGAS_FONT_FGAS_GEFONT_H_

9

10 #include <map>

11

12 #include "core/fxcrt/fx_memory.h"

13 #include "xfa/fgas/crt/fgas_utils.h"

14 #include "xfa/fgas/font/cfgas_fontmgr.h"

15

16 #define FXFONT_SUBST_ITALIC 0x02

17

18 class CFX_UnicodeEncoding;

19 class CXFA_PDFFontMgr;

20

21 class CFGAS_GEFont {

22 public:

23 static CFGAS_GEFont* LoadFont(const FX_WCHAR* pszFontFamily,

24 uint32_t dwFontStyles,

25 uint16_t wCodePage,

26 CFGAS_FontMgr* pFontMgr);

27 static CFGAS_GEFont* LoadFont(CFX_Font* pExternalFont,

28 CFGAS_FontMgr* pFontMgr);

29 static CFGAS_GEFont* LoadFont(std::unique_ptr<CFX_Font> pInternalFont,

30 CFGAS_FontMgr* pFontMgr);

31 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_

32 static CFGAS_GEFont* LoadFont(const uint8_t* pBuffer,

33 int32_t iLength,

34 CFGAS_FontMgr* pFontMgr);

35 static CFGAS_GEFont* LoadFont(IFX_Stream* pFontStream,

36 CFGAS_FontMgr* pFontMgr,

37 bool bSaveStream);

38 #endif

39

40 ~CFGAS_GEFont();

41

42 void Release();

43 CFGAS_GEFont* Retain();

44 CFGAS_GEFont* Derive(uint32_t dwFontStyles, uint16_t wCodePage = 0);

45 void GetFamilyName(CFX_WideString& wsFamily) const;

46 uint32_t GetFontStyles() const;

47 bool GetCharWidth(FX_WCHAR wUnicode, int32_t& iWidth, bool bCharCode);

48 int32_t GetGlyphIndex(FX_WCHAR wUnicode, bool bCharCode = false);

49 int32_t GetAscent() const;

50 int32_t GetDescent() const;

51 bool GetCharBBox(FX_WCHAR wUnicode, CFX_Rect& bbox, bool bCharCode = false);

52 bool GetBBox(CFX_Rect& bbox);

53 int32_t GetItalicAngle() const;

54 void Reset();

55 CFGAS_GEFont* GetSubstFont(int32_t iGlyphIndex) const;

56 CFX_Font* GetDevFont() const { return m_pFont; }

57 void SetFontProvider(CXFA_PDFFontMgr* pProvider) { m_pProvider = pProvider; }

58 #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_

59 void SetLogicalFontStyle(uint32_t dwLogFontStyle) {

60 m_bUseLogFontStyle = true;

61 m_dwLogFontStyle = dwLogFontStyle;

62 }

63 #endif

64

65 protected:

66 explicit CFGAS_GEFont(CFGAS_FontMgr* pFontMgr);

67 CFGAS_GEFont(CFGAS_GEFont* src, uint32_t dwFontStyles);

68

69 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_

70 bool LoadFontInternal(const FX_WCHAR* pszFontFamily,

71 uint32_t dwFontStyles,

72 uint16_t wCodePage);

73 bool LoadFontInternal(const uint8_t* pBuffer, int32_t length);

74 bool LoadFontInternal(IFX_Stream* pFontStream, bool bSaveStream);

75 #endif

76 bool LoadFontInternal(CFX_Font* pExternalFont);

77 bool LoadFontInternal(std::unique_ptr<CFX_Font> pInternalFont);

78 bool InitFont();

79 bool GetCharBBoxInternal(FX_WCHAR wUnicode,

80 CFX_Rect& bbox,

81 bool bRecursive,

82 bool bCharCode = false);

83 bool GetCharWidthInternal(FX_WCHAR wUnicode,

84 int32_t& iWidth,

85 bool bRecursive,

86 bool bCharCode);

87 int32_t GetGlyphIndex(FX_WCHAR wUnicode,

88 bool bRecursive,

89 CFGAS_GEFont** ppFont,

90 bool bCharCode = false);

91

92 #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_

93 bool m_bUseLogFontStyle;

94 uint32_t m_dwLogFontStyle;

95 #endif

96 CFX_Font* m_pFont;

97 CFGAS_GEFont* const m_pSrcFont;

98 CFGAS_FontMgr* const m_pFontMgr;

99 int32_t m_iRefCount;

100 bool m_bExternalFont;

101 std::unique_ptr<IFX_Stream, ReleaseDeleter<IFX_Stream>> m_pStream;

102 std::unique_ptr<IFX_SeekableReadStream,

103 ReleaseDeleter<IFX_SeekableReadStream>>

104 m_pFileRead;

105 std::unique_ptr<CFX_UnicodeEncoding> m_pFontEncoding;

106 std::unique_ptr<CFX_DiscreteArrayTemplate<uint16_t>> m_pCharWidthMap;

107 std::unique_ptr<CFX_MassArrayTemplate<CFX_Rect>> m_pRectArray;

108 std::unique_ptr<CFX_MapPtrToPtr> m_pBBoxMap;

109 CXFA_PDFFontMgr* m_pProvider; // not owned.

110 CFX_ArrayTemplate<CFGAS_GEFont*> m_SubstFonts;

111 std::map<FX_WCHAR, CFGAS_GEFont*> m_FontMapper;

112 };

113

114 #endif // XFA_FGAS_FONT_FGAS_GEFONT_H_

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