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: Rebase? 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 #include <memory>

12

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

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

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

16

17 #define FXFONT_SUBST_ITALIC 0x02

18

19 class CFX_UnicodeEncoding;

20 class CXFA_PDFFontMgr;

21

22 class CFGAS_GEFont {

23 public:

24 static CFGAS_GEFont* LoadFont(const FX_WCHAR* pszFontFamily,

25 uint32_t dwFontStyles,

26 uint16_t wCodePage,

27 CFGAS_FontMgr* pFontMgr);

28 static CFGAS_GEFont* LoadFont(CFX_Font* pExternalFont,

29 CFGAS_FontMgr* pFontMgr);

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

31 CFGAS_FontMgr* pFontMgr);

32 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_

33 static CFGAS_GEFont* LoadFont(const uint8_t* pBuffer,

34 int32_t iLength,

35 CFGAS_FontMgr* pFontMgr);

36 static CFGAS_GEFont* LoadFont(IFX_Stream* pFontStream,

37 CFGAS_FontMgr* pFontMgr,

38 bool bSaveStream);

39 #endif

40

41 ~CFGAS_GEFont();

42

43 void Release();

44 CFGAS_GEFont* Retain();

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

46 void GetFamilyName(CFX_WideString& wsFamily) const;

47 uint32_t GetFontStyles() const;

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

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

50 int32_t GetAscent() const;

51 int32_t GetDescent() const;

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

53 bool GetBBox(CFX_Rect& bbox);

54 int32_t GetItalicAngle() const;

55 void Reset();

56 CFGAS_GEFont* GetSubstFont(int32_t iGlyphIndex) const;

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

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

59 #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_

60 void SetLogicalFontStyle(uint32_t dwLogFontStyle) {

61 m_bUseLogFontStyle = true;

62 m_dwLogFontStyle = dwLogFontStyle;

63 }

64 #endif

65

66 protected:

67 explicit CFGAS_GEFont(CFGAS_FontMgr* pFontMgr);

68 CFGAS_GEFont(CFGAS_GEFont* src, uint32_t dwFontStyles);

69

70 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_

71 bool LoadFontInternal(const FX_WCHAR* pszFontFamily,

72 uint32_t dwFontStyles,

73 uint16_t wCodePage);

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

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

76 #endif

77 bool LoadFontInternal(CFX_Font* pExternalFont);

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

79 bool InitFont();

80 bool GetCharBBoxInternal(FX_WCHAR wUnicode,

81 CFX_Rect& bbox,

82 bool bRecursive,

83 bool bCharCode = false);

84 bool GetCharWidthInternal(FX_WCHAR wUnicode,

85 int32_t& iWidth,

86 bool bRecursive,

87 bool bCharCode);

88 int32_t GetGlyphIndex(FX_WCHAR wUnicode,

89 bool bRecursive,

90 CFGAS_GEFont** ppFont,

91 bool bCharCode = false);

92

93 #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_

94 bool m_bUseLogFontStyle;

95 uint32_t m_dwLogFontStyle;

96 #endif

97 CFX_Font* m_pFont;

98 CFGAS_GEFont* const m_pSrcFont;

99 CFGAS_FontMgr* const m_pFontMgr;

100 int32_t m_iRefCount;

101 bool m_bExternalFont;

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

103 std::unique_ptr<IFX_SeekableReadStream,

104 ReleaseDeleter<IFX_SeekableReadStream>>

105 m_pFileRead;

106 std::unique_ptr<CFX_UnicodeEncoding> m_pFontEncoding;

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

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

109 std::unique_ptr<CFX_MapPtrToPtr> m_pBBoxMap;

110 CXFA_PDFFontMgr* m_pProvider; // not owned.

111 CFX_ArrayTemplate<CFGAS_GEFont*> m_SubstFonts;

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

113 };

114

115 #endif // XFA_FGAS_FONT_FGAS_GEFONT_H_

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