// Copyright 2014 PDFium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com #ifndef XFA_FGAS_LAYOUT_FGAS_RTFBREAK_H_ #define XFA_FGAS_LAYOUT_FGAS_RTFBREAK_H_ #include "core/fxcrt/include/fx_basic.h" #include "core/fxcrt/include/fx_ucd.h" #include "xfa/fgas/crt/fgas_memory.h" #include "xfa/fgas/crt/fgas_utils.h" #include "xfa/fgas/layout/fgas_textbreak.h" #include "xfa/fgas/layout/fgas_unicode.h" class CFGAS_GEFont; #define FX_RTFBREAKPOLICY_None 0x00 #define FX_RTFBREAKPOLICY_SpaceBreak 0x01 #define FX_RTFBREAKPOLICY_NumberBreak 0x02 #define FX_RTFBREAKPOLICY_InfixBreak 0x04 #define FX_RTFBREAKPOLICY_TabBreak 0x08 #define FX_RTFBREAKPOLICY_OrphanPositionedTab 0x10 #define FX_RTFBREAK_None 0x00 #define FX_RTFBREAK_PieceBreak 0x01 #define FX_RTFBREAK_LineBreak 0x02 #define FX_RTFBREAK_ParagraphBreak 0x03 #define FX_RTFBREAK_PageBreak 0x04 #define FX_RTFLAYOUTSTYLE_Pagination 0x01 #define FX_RTFLAYOUTSTYLE_VerticalLayout 0x02 #define FX_RTFLAYOUTSTYLE_VerticalChars 0x04 #define FX_RTFLAYOUTSTYLE_LineDirection 0x08 #define FX_RTFLAYOUTSTYLE_ExpandTab 0x10 #define FX_RTFLAYOUTSTYLE_ArabicNumber 0x20 #define FX_RTFLAYOUTSTYLE_SingleLine 0x40 #define FX_RTFLAYOUTSTYLE_MBCSCode 0x80 #define FX_RTFCHARSTYLE_Alignment 0x000F #define FX_RTFCHARSTYLE_ArabicNumber 0x0010 #define FX_RTFCHARSTYLE_ArabicShadda 0x0020 #define FX_RTFCHARSTYLE_OddBidiLevel 0x0040 #define FX_RTFCHARSTYLE_RTLReadingOrder 0x0080 #define FX_RTFCHARSTYLE_ArabicContext 0x0300 #define FX_RTFCHARSTYLE_ArabicIndic 0x0400 #define FX_RTFCHARSTYLE_ArabicComma 0x0800 #define FX_RTFLINEALIGNMENT_Left 0 #define FX_RTFLINEALIGNMENT_Center 1 #define FX_RTFLINEALIGNMENT_Right 2 #define FX_RTFLINEALIGNMENT_Justified (1 << 2) #define FX_RTFLINEALIGNMENT_Distributed (2 << 2) #define FX_RTFLINEALIGNMENT_JustifiedLeft \ (FX_RTFLINEALIGNMENT_Left | FX_RTFLINEALIGNMENT_Justified) #define FX_RTFLINEALIGNMENT_JustifiedCenter \ (FX_RTFLINEALIGNMENT_Center | FX_RTFLINEALIGNMENT_Justified) #define FX_RTFLINEALIGNMENT_JustifiedRight \ (FX_RTFLINEALIGNMENT_Right | FX_RTFLINEALIGNMENT_Justified) #define FX_RTFLINEALIGNMENT_DistributedLeft \ (FX_RTFLINEALIGNMENT_Left | FX_RTFLINEALIGNMENT_Distributed) #define FX_RTFLINEALIGNMENT_DistributedCenter \ (FX_RTFLINEALIGNMENT_Center | FX_RTFLINEALIGNMENT_Distributed) #define FX_RTFLINEALIGNMENT_DistributedRight \ (FX_RTFLINEALIGNMENT_Right | FX_RTFLINEALIGNMENT_Distributed) #define FX_RTFLINEALIGNMENT_LowerMask 0x03 #define FX_RTFLINEALIGNMENT_HigherMask 0x0C struct FX_RTFTEXTOBJ { FX_RTFTEXTOBJ(); const FX_WCHAR* pStr; int32_t* pWidths; int32_t iLength; CFGAS_GEFont* pFont; FX_FLOAT fFontSize; uint32_t dwLayoutStyles; int32_t iCharRotation; int32_t iBidiLevel; const CFX_RectF* pRect; FX_WCHAR wLineBreakChar; int32_t iHorizontalScale; int32_t iVerticalScale; }; class CFX_RTFPiece : public CFX_Target { public: CFX_RTFPiece(); ~CFX_RTFPiece() override; void AppendChar(const CFX_RTFChar& tc) { ASSERT(m_pChars); m_pChars->Add(tc); if (m_iWidth < 0) { m_iWidth = tc.m_iCharWidth; } else { m_iWidth += tc.m_iCharWidth; } m_iChars++; } int32_t GetEndPos() const { return m_iWidth < 0 ? m_iStartPos : m_iStartPos + m_iWidth; } int32_t GetLength() const { return m_iChars; } int32_t GetEndChar() const { return m_iStartChar + m_iChars; } CFX_RTFChar& GetChar(int32_t index) { ASSERT(index > -1 && index < m_iChars && m_pChars); return *m_pChars->GetDataPtr(m_iStartChar + index); } CFX_RTFChar* GetCharPtr(int32_t index) const { ASSERT(index > -1 && index < m_iChars && m_pChars); return m_pChars->GetDataPtr(m_iStartChar + index); } void GetString(FX_WCHAR* pText) const { ASSERT(pText); int32_t iEndChar = m_iStartChar + m_iChars; CFX_RTFChar* pChar; for (int32_t i = m_iStartChar; i < iEndChar; i++) { pChar = m_pChars->GetDataPtr(i); *pText++ = (FX_WCHAR)pChar->m_wCharCode; } } void GetString(CFX_WideString& wsText) const { FX_WCHAR* pText = wsText.GetBuffer(m_iChars); GetString(pText); wsText.ReleaseBuffer(m_iChars); } void GetWidths(int32_t* pWidths) const { ASSERT(pWidths); int32_t iEndChar = m_iStartChar + m_iChars; CFX_RTFChar* pChar; for (int32_t i = m_iStartChar; i < iEndChar; i++) { pChar = m_pChars->GetDataPtr(i); *pWidths++ = pChar->m_iCharWidth; } } void Reset() { m_dwStatus = FX_RTFBREAK_PieceBreak; if (m_iWidth > -1) { m_iStartPos += m_iWidth; } m_iWidth = -1; m_iStartChar += m_iChars; m_iChars = 0; m_iBidiLevel = 0; m_iBidiPos = 0; m_iHorizontalScale = 100; m_iVerticalScale = 100; } uint32_t m_dwStatus; int32_t m_iStartPos; int32_t m_iWidth; int32_t m_iStartChar; int32_t m_iChars; int32_t m_iBidiLevel; int32_t m_iBidiPos; int32_t m_iFontSize; int32_t m_iFontHeight; int32_t m_iHorizontalScale; int32_t m_iVerticalScale; uint32_t m_dwLayoutStyles; uint32_t m_dwIdentity; CFX_RTFCharArray* m_pChars; IFX_Retainable* m_pUserData; }; typedef CFX_BaseArrayTemplate<CFX_RTFPiece> CFX_RTFPieceArray; class CFX_RTFLine { public: CFX_RTFLine(); ~CFX_RTFLine(); int32_t CountChars() const { return m_LineChars.GetSize(); } CFX_RTFChar& GetChar(int32_t index) { ASSERT(index > -1 && index < m_LineChars.GetSize()); return *m_LineChars.GetDataPtr(index); } CFX_RTFChar* GetCharPtr(int32_t index) { ASSERT(index > -1 && index < m_LineChars.GetSize()); return m_LineChars.GetDataPtr(index); } int32_t CountPieces() const { return m_LinePieces.GetSize(); } CFX_RTFPiece& GetPiece(int32_t index) const { ASSERT(index > -1 && index < m_LinePieces.GetSize()); return m_LinePieces.GetAt(index); } CFX_RTFPiece* GetPiecePtr(int32_t index) const { ASSERT(index > -1 && index < m_LinePieces.GetSize()); return m_LinePieces.GetPtrAt(index); } int32_t GetLineEnd() const { return m_iStart + m_iWidth; } void RemoveAll(FX_BOOL bLeaveMemory = FALSE) { CFX_RTFChar* pChar; int32_t iCount = m_LineChars.GetSize(); for (int32_t i = 0; i < iCount; i++) { pChar = m_LineChars.GetDataPtr(i); if (pChar->m_pUserData) pChar->m_pUserData->Release(); } m_LineChars.RemoveAll(); m_LinePieces.RemoveAll(bLeaveMemory); m_iWidth = 0; m_iArabicChars = 0; m_iMBCSChars = 0; } CFX_RTFCharArray m_LineChars; CFX_RTFPieceArray m_LinePieces; int32_t m_iStart; int32_t m_iWidth; int32_t m_iArabicChars; int32_t m_iMBCSChars; }; class CFX_RTFBreak { public: explicit CFX_RTFBreak(uint32_t dwPolicies); ~CFX_RTFBreak(); void SetLineBoundary(FX_FLOAT fLineStart, FX_FLOAT fLineEnd); void SetLineStartPos(FX_FLOAT fLinePos); uint32_t GetLayoutStyles() const { return m_dwLayoutStyles; } void SetLayoutStyles(uint32_t dwLayoutStyles); void SetFont(CFGAS_GEFont* pFont); void SetFontSize(FX_FLOAT fFontSize); void SetTabWidth(FX_FLOAT fTabWidth); void AddPositionedTab(FX_FLOAT fTabPos); void SetPositionedTabs(const CFX_FloatArray& tabs); void ClearPositionedTabs(); void SetDefaultChar(FX_WCHAR wch); void SetLineBreakChar(FX_WCHAR wch); void SetLineBreakTolerance(FX_FLOAT fTolerance); void SetHorizontalScale(int32_t iScale); void SetVerticalScale(int32_t iScale); void SetCharRotation(int32_t iCharRotation); void SetCharSpace(FX_FLOAT fCharSpace); void SetWordSpace(FX_BOOL bDefault, FX_FLOAT fWordSpace); void SetReadingOrder(FX_BOOL bRTL = FALSE); void SetAlignment(int32_t iAlignment = FX_RTFLINEALIGNMENT_Left); void SetUserData(IFX_Retainable* pUserData); uint32_t AppendChar(FX_WCHAR wch); uint32_t EndBreak(uint32_t dwStatus = FX_RTFBREAK_PieceBreak); int32_t CountBreakPieces() const; const CFX_RTFPiece* GetBreakPiece(int32_t index) const; void GetLineRect(CFX_RectF& rect) const; void ClearBreakPieces(); void Reset(); int32_t GetDisplayPos(const FX_RTFTEXTOBJ* pText, FXTEXT_CHARPOS* pCharPos, FX_BOOL bCharCode = FALSE, CFX_WideString* pWSForms = nullptr, FX_AdjustCharDisplayPos pAdjustPos = nullptr) const; int32_t GetCharRects(const FX_RTFTEXTOBJ* pText, CFX_RectFArray& rtArray, FX_BOOL bCharBBox = FALSE) const; uint32_t AppendChar_CharCode(FX_WCHAR wch); uint32_t AppendChar_Combination(CFX_RTFChar* pCurChar, int32_t iRotation); uint32_t AppendChar_Tab(CFX_RTFChar* pCurChar, int32_t iRotation); uint32_t AppendChar_Control(CFX_RTFChar* pCurChar, int32_t iRotation); uint32_t AppendChar_Arabic(CFX_RTFChar* pCurChar, int32_t iRotation); uint32_t AppendChar_Others(CFX_RTFChar* pCurChar, int32_t iRotation); protected: int32_t GetLineRotation(uint32_t dwStyles) const; void SetBreakStatus(); CFX_RTFChar* GetLastChar(int32_t index) const; CFX_RTFLine* GetRTFLine(FX_BOOL bReady) const; CFX_RTFPieceArray* GetRTFPieces(FX_BOOL bReady) const; FX_CHARTYPE GetUnifiedCharType(FX_CHARTYPE chartype) const; int32_t GetLastPositionedTab() const; FX_BOOL GetPositionedTab(int32_t& iTabPos) const; int32_t GetBreakPos(CFX_RTFCharArray& tca, int32_t& iEndPos, FX_BOOL bAllChars = FALSE, FX_BOOL bOnlyBrk = FALSE); void SplitTextLine(CFX_RTFLine* pCurLine, CFX_RTFLine* pNextLine, FX_BOOL bAllChars = FALSE); FX_BOOL EndBreak_SplitLine(CFX_RTFLine* pNextLine, FX_BOOL bAllChars, uint32_t dwStatus); void EndBreak_BidiLine(CFX_TPOArray& tpos, uint32_t dwStatus); void EndBreak_Alignment(CFX_TPOArray& tpos, FX_BOOL bAllChars, uint32_t dwStatus); uint32_t m_dwPolicies; int32_t m_iBoundaryStart; int32_t m_iBoundaryEnd; uint32_t m_dwLayoutStyles; FX_BOOL m_bPagination; FX_BOOL m_bVertical; FX_BOOL m_bSingleLine; FX_BOOL m_bCharCode; CFGAS_GEFont* m_pFont; int32_t m_iFontHeight; int32_t m_iFontSize; int32_t m_iTabWidth; CFX_Int32Array m_PositionedTabs; FX_BOOL m_bOrphanLine; FX_WCHAR m_wDefChar; int32_t m_iDefChar; FX_WCHAR m_wLineBreakChar; int32_t m_iHorizontalScale; int32_t m_iVerticalScale; int32_t m_iLineRotation; int32_t m_iCharRotation; int32_t m_iRotation; int32_t m_iCharSpace; FX_BOOL m_bWordSpace; int32_t m_iWordSpace; FX_BOOL m_bRTL; int32_t m_iAlignment; IFX_Retainable* m_pUserData; FX_CHARTYPE m_eCharType; uint32_t m_dwIdentity; CFX_RTFLine m_RTFLine1; CFX_RTFLine m_RTFLine2; CFX_RTFLine* m_pCurLine; int32_t m_iReady; int32_t m_iTolerance; }; #endif // XFA_FGAS_LAYOUT_FGAS_RTFBREAK_H_