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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_SRC_FGAS_LAYOUT_FGAS_TEXTBREAK_H_ | |
| 8 #define XFA_SRC_FGAS_LAYOUT_FGAS_TEXTBREAK_H_ | |
| 9 | |
| 10 #include "core/include/fxcrt/fx_ucd.h" | |
| 11 #include "core/include/fxge/fx_ge.h" | |
| 12 #include "xfa/src/fgas/crt/fgas_utils.h" | |
| 13 #include "xfa/src/fgas/layout/fgas_unicode.h" | |
| 14 | |
| 15 class IFX_Font; | |
| 16 class CFX_Char; | |
| 17 class IFX_TxtAccess; | |
| 18 class CFX_TxtChar; | |
| 19 class CFX_TxtPiece; | |
| 20 class IFX_TxtBreak; | |
| 21 | |
| 22 #define FX_TXTBREAKPOLICY_None 0x00 | |
| 23 #define FX_TXTBREAKPOLICY_Pagination 0x01 | |
| 24 #define FX_TXTBREAKPOLICY_SpaceBreak 0x02 | |
| 25 #define FX_TXTBREAKPOLICY_NumberBreak 0x04 | |
| 26 #define FX_TXTBREAK_None 0x00 | |
| 27 #define FX_TXTBREAK_PieceBreak 0x01 | |
| 28 #define FX_TXTBREAK_LineBreak 0x02 | |
| 29 #define FX_TXTBREAK_ParagraphBreak 0x03 | |
| 30 #define FX_TXTBREAK_PageBreak 0x04 | |
| 31 #define FX_TXTBREAK_ControlChar 0x10 | |
| 32 #define FX_TXTBREAK_BreakChar 0x20 | |
| 33 #define FX_TXTBREAK_UnknownChar 0x40 | |
| 34 #define FX_TXTBREAK_RemoveChar 0x80 | |
| 35 #define FX_TXTLAYOUTSTYLE_MutipleFormat 0x0001 | |
| 36 #define FX_TXTLAYOUTSTYLE_VerticalLayout 0x0002 | |
| 37 #define FX_TXTLAYOUTSTYLE_VerticalChars 0x0004 | |
| 38 #define FX_TXTLAYOUTSTYLE_ReverseLine 0x0008 | |
| 39 #define FX_TXTLAYOUTSTYLE_ArabicContext 0x0010 | |
| 40 #define FX_TXTLAYOUTSTYLE_ArabicShapes 0x0020 | |
| 41 #define FX_TXTLAYOUTSTYLE_RTLReadingOrder 0x0040 | |
| 42 #define FX_TXTLAYOUTSTYLE_ExpandTab 0x0100 | |
| 43 #define FX_TXTLAYOUTSTYLE_SingleLine 0x0200 | |
| 44 #define FX_TXTLAYOUTSTYLE_CombText 0x0400 | |
| 45 #define FX_TXTCHARSTYLE_Alignment 0x000F | |
| 46 #define FX_TXTCHARSTYLE_ArabicNumber 0x0010 | |
| 47 #define FX_TXTCHARSTYLE_ArabicShadda 0x0020 | |
| 48 #define FX_TXTCHARSTYLE_OddBidiLevel 0x0040 | |
| 49 #define FX_TXTCHARSTYLE_RTLReadingOrder 0x0080 | |
| 50 #define FX_TXTCHARSTYLE_ArabicContext 0x0300 | |
| 51 #define FX_TXTCHARSTYLE_ArabicIndic 0x0400 | |
| 52 #define FX_TXTCHARSTYLE_ArabicComma 0x0800 | |
| 53 #define FX_TXTLINEALIGNMENT_Left 0 | |
| 54 #define FX_TXTLINEALIGNMENT_Center 1 | |
| 55 #define FX_TXTLINEALIGNMENT_Right 2 | |
| 56 #define FX_TXTLINEALIGNMENT_Justified (1 << 2) | |
| 57 #define FX_TXTLINEALIGNMENT_Distributed (2 << 2) | |
| 58 #define FX_TXTLINEALIGNMENT_JustifiedLeft \ | |
| 59 (FX_TXTLINEALIGNMENT_Left | FX_TXTLINEALIGNMENT_Justified) | |
| 60 #define FX_TXTLINEALIGNMENT_JustifiedCenter \ | |
| 61 (FX_TXTLINEALIGNMENT_Center | FX_TXTLINEALIGNMENT_Justified) | |
| 62 #define FX_TXTLINEALIGNMENT_JustifiedRight \ | |
| 63 (FX_TXTLINEALIGNMENT_Right | FX_TXTLINEALIGNMENT_Justified) | |
| 64 #define FX_TXTLINEALIGNMENT_DistributedLeft \ | |
| 65 (FX_TXTLINEALIGNMENT_Left | FX_TXTLINEALIGNMENT_Distributed) | |
| 66 #define FX_TXTLINEALIGNMENT_DistributedCenter \ | |
| 67 (FX_TXTLINEALIGNMENT_Center | FX_TXTLINEALIGNMENT_Distributed) | |
| 68 #define FX_TXTLINEALIGNMENT_DistributedRight \ | |
| 69 (FX_TXTLINEALIGNMENT_Right | FX_TXTLINEALIGNMENT_Distributed) | |
| 70 #define FX_TXTLINEALIGNMENT_LowerMask 0x03 | |
| 71 #define FX_TXTLINEALIGNMENT_HigherMask 0x0C | |
| 72 #define FX_TXTBREAK_MinimumTabWidth 160000 | |
| 73 | |
| 74 class IFX_TxtAccess { | |
| 75 public: | |
| 76 virtual ~IFX_TxtAccess() {} | |
| 77 virtual FX_WCHAR GetChar(void* pIdentity, int32_t index) const = 0; | |
| 78 virtual int32_t GetWidth(void* pIdentity, int32_t index) const = 0; | |
| 79 }; | |
| 80 | |
| 81 struct FX_TXTRUN { | |
| 82 FX_TXTRUN() { | |
| 83 pAccess = NULL; | |
| 84 pIdentity = NULL; | |
| 85 pStr = NULL; | |
| 86 pWidths = NULL; | |
| 87 iLength = 0; | |
| 88 pFont = NULL; | |
| 89 fFontSize = 12; | |
| 90 dwStyles = 0; | |
| 91 iHorizontalScale = 100; | |
| 92 iVerticalScale = 100; | |
| 93 iCharRotation = 0; | |
| 94 dwCharStyles = 0; | |
| 95 pRect = NULL; | |
| 96 wLineBreakChar = L'\n'; | |
| 97 bSkipSpace = TRUE; | |
| 98 } | |
| 99 | |
| 100 IFX_TxtAccess* pAccess; | |
| 101 void* pIdentity; | |
| 102 const FX_WCHAR* pStr; | |
| 103 int32_t* pWidths; | |
| 104 int32_t iLength; | |
| 105 IFX_Font* pFont; | |
| 106 FX_FLOAT fFontSize; | |
| 107 FX_DWORD dwStyles; | |
| 108 int32_t iHorizontalScale; | |
| 109 int32_t iVerticalScale; | |
| 110 int32_t iCharRotation; | |
| 111 FX_DWORD dwCharStyles; | |
| 112 const CFX_RectF* pRect; | |
| 113 FX_WCHAR wLineBreakChar; | |
| 114 FX_BOOL bSkipSpace; | |
| 115 }; | |
| 116 | |
| 117 class CFX_TxtPiece : public CFX_Target { | |
| 118 public: | |
| 119 CFX_TxtPiece() | |
| 120 : m_dwStatus(FX_TXTBREAK_PieceBreak), | |
| 121 m_iStartPos(0), | |
| 122 m_iWidth(-1), | |
| 123 m_iStartChar(0), | |
| 124 m_iChars(0), | |
| 125 m_iBidiLevel(0), | |
| 126 m_iBidiPos(0), | |
| 127 m_iHorizontalScale(100), | |
| 128 m_iVerticalScale(100), | |
| 129 m_dwCharStyles(0), | |
| 130 m_pChars(NULL), | |
| 131 m_pUserData(NULL) {} | |
| 132 int32_t GetEndPos() const { | |
| 133 return m_iWidth < 0 ? m_iStartPos : m_iStartPos + m_iWidth; | |
| 134 } | |
| 135 int32_t GetLength() const { return m_iChars; } | |
| 136 int32_t GetEndChar() const { return m_iStartChar + m_iChars; } | |
| 137 CFX_TxtChar* GetCharPtr(int32_t index) const { | |
| 138 FXSYS_assert(index > -1 && index < m_iChars && m_pChars != NULL); | |
| 139 return m_pChars->GetDataPtr(m_iStartChar + index); | |
| 140 } | |
| 141 void GetString(FX_WCHAR* pText) const { | |
| 142 FXSYS_assert(pText != NULL); | |
| 143 int32_t iEndChar = m_iStartChar + m_iChars; | |
| 144 CFX_Char* pChar; | |
| 145 for (int32_t i = m_iStartChar; i < iEndChar; i++) { | |
| 146 pChar = m_pChars->GetDataPtr(i); | |
| 147 *pText++ = (FX_WCHAR)pChar->m_wCharCode; | |
| 148 } | |
| 149 } | |
| 150 | |
| 151 void GetString(CFX_WideString& wsText) const { | |
| 152 FX_WCHAR* pText = wsText.GetBuffer(m_iChars); | |
| 153 GetString(pText); | |
| 154 wsText.ReleaseBuffer(m_iChars); | |
| 155 } | |
| 156 void GetWidths(int32_t* pWidths) const { | |
| 157 FXSYS_assert(pWidths != NULL); | |
| 158 int32_t iEndChar = m_iStartChar + m_iChars; | |
| 159 CFX_Char* pChar; | |
| 160 for (int32_t i = m_iStartChar; i < iEndChar; i++) { | |
| 161 pChar = m_pChars->GetDataPtr(i); | |
| 162 *pWidths++ = pChar->m_iCharWidth; | |
| 163 } | |
| 164 } | |
| 165 FX_DWORD m_dwStatus; | |
| 166 int32_t m_iStartPos; | |
| 167 int32_t m_iWidth; | |
| 168 int32_t m_iStartChar; | |
| 169 int32_t m_iChars; | |
| 170 int32_t m_iBidiLevel; | |
| 171 int32_t m_iBidiPos; | |
| 172 int32_t m_iHorizontalScale; | |
| 173 int32_t m_iVerticalScale; | |
| 174 FX_DWORD m_dwCharStyles; | |
| 175 CFX_TxtCharArray* m_pChars; | |
| 176 void* m_pUserData; | |
| 177 }; | |
| 178 typedef CFX_BaseArrayTemplate<CFX_TxtPiece> CFX_TxtPieceArray; | |
| 179 | |
| 180 class IFX_TxtBreak { | |
| 181 public: | |
| 182 static IFX_TxtBreak* Create(FX_DWORD dwPolicies); | |
| 183 virtual ~IFX_TxtBreak() {} | |
| 184 virtual void Release() = 0; | |
| 185 virtual void SetLineWidth(FX_FLOAT fLineWidth) = 0; | |
| 186 virtual void SetLinePos(FX_FLOAT fLinePos) = 0; | |
| 187 virtual FX_DWORD GetLayoutStyles() const = 0; | |
| 188 virtual void SetLayoutStyles(FX_DWORD dwLayoutStyles) = 0; | |
| 189 virtual void SetFont(IFX_Font* pFont) = 0; | |
| 190 virtual void SetFontSize(FX_FLOAT fFontSize) = 0; | |
| 191 virtual void SetTabWidth(FX_FLOAT fTabWidth, FX_BOOL bEquidistant) = 0; | |
| 192 virtual void SetDefaultChar(FX_WCHAR wch) = 0; | |
| 193 virtual void SetParagraphBreakChar(FX_WCHAR wch) = 0; | |
| 194 virtual void SetLineBreakTolerance(FX_FLOAT fTolerance) = 0; | |
| 195 virtual void SetHorizontalScale(int32_t iScale) = 0; | |
| 196 virtual void SetVerticalScale(int32_t iScale) = 0; | |
| 197 virtual void SetCharRotation(int32_t iCharRotation) = 0; | |
| 198 virtual void SetCharSpace(FX_FLOAT fCharSpace) = 0; | |
| 199 virtual void SetAlignment(int32_t iAlignment) = 0; | |
| 200 virtual FX_DWORD GetContextCharStyles() const = 0; | |
| 201 virtual void SetContextCharStyles(FX_DWORD dwCharStyles) = 0; | |
| 202 virtual void SetCombWidth(FX_FLOAT fCombWidth) = 0; | |
| 203 virtual void SetUserData(void* pUserData) = 0; | |
| 204 virtual FX_DWORD AppendChar(FX_WCHAR wch) = 0; | |
| 205 virtual FX_DWORD EndBreak(FX_DWORD dwStatus = FX_TXTBREAK_PieceBreak) = 0; | |
| 206 virtual int32_t CountBreakChars() const = 0; | |
| 207 virtual int32_t CountBreakPieces() const = 0; | |
| 208 virtual const CFX_TxtPiece* GetBreakPiece(int32_t index) const = 0; | |
| 209 virtual void ClearBreakPieces() = 0; | |
| 210 virtual void Reset() = 0; | |
| 211 virtual int32_t GetDisplayPos( | |
| 212 const FX_TXTRUN* pTxtRun, | |
| 213 FXTEXT_CHARPOS* pCharPos, | |
| 214 FX_BOOL bCharCode = FALSE, | |
| 215 CFX_WideString* pWSForms = NULL, | |
| 216 FX_AdjustCharDisplayPos pAdjustPos = NULL) const = 0; | |
| 217 virtual int32_t GetCharRects(const FX_TXTRUN* pTxtRun, | |
| 218 CFX_RectFArray& rtArray, | |
| 219 FX_BOOL bCharBBox = FALSE) const = 0; | |
| 220 }; | |
| 221 | |
| 222 #endif // XFA_SRC_FGAS_LAYOUT_FGAS_TEXTBREAK_H_ | |
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Chromium Code Reviews
Issue 1803723002:
Move xfa/src up to xfa/. (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master