| // 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_ucd.h" |
| #include "core/fxge/include/fx_ge.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 IFX_Unknown; |
| class IFX_Font; |
| |
| #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() { |
| pStr = NULL; |
| pWidths = NULL; |
| iLength = 0; |
| pFont = NULL; |
| fFontSize = 12.0f; |
| dwLayoutStyles = 0; |
| iCharRotation = 0; |
| iBidiLevel = 0; |
| pRect = NULL; |
| wLineBreakChar = L'\n'; |
| iHorizontalScale = 100; |
| iVerticalScale = 100; |
| } |
| |
| const FX_WCHAR* pStr; |
| int32_t* pWidths; |
| int32_t iLength; |
| IFX_Font* 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() |
| : m_dwStatus(FX_RTFBREAK_PieceBreak), |
| m_iStartPos(0), |
| m_iWidth(-1), |
| m_iStartChar(0), |
| m_iChars(0), |
| m_iBidiLevel(0), |
| m_iBidiPos(0), |
| m_iFontSize(0), |
| m_iFontHeight(0), |
| m_iHorizontalScale(100), |
| m_iVerticalScale(100), |
| m_dwLayoutStyles(0), |
| m_dwIdentity(0), |
| m_pChars(NULL), |
| m_pUserData(NULL) {} |
| ~CFX_RTFPiece() { Reset(); } |
| void AppendChar(const CFX_RTFChar& tc) { |
| ASSERT(m_pChars != NULL); |
| 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 != NULL); |
| return *m_pChars->GetDataPtr(m_iStartChar + index); |
| } |
| CFX_RTFChar* GetCharPtr(int32_t index) const { |
| ASSERT(index > -1 && index < m_iChars && m_pChars != NULL); |
| return m_pChars->GetDataPtr(m_iStartChar + index); |
| } |
| void GetString(FX_WCHAR* pText) const { |
| ASSERT(pText != NULL); |
| 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 != NULL); |
| 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_Unknown* m_pUserData; |
| }; |
| typedef CFX_BaseArrayTemplate<CFX_RTFPiece> CFX_RTFPieceArray; |
| |
| class CFX_RTFLine { |
| public: |
| CFX_RTFLine() |
| : m_LinePieces(16), |
| m_iStart(0), |
| m_iWidth(0), |
| m_iArabicChars(0), |
| m_iMBCSChars(0) {} |
| ~CFX_RTFLine() { RemoveAll(); } |
| 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; |
| IFX_Unknown* pUnknown; |
| int32_t iCount = m_LineChars.GetSize(); |
| for (int32_t i = 0; i < iCount; i++) { |
| pChar = m_LineChars.GetDataPtr(i); |
| if ((pUnknown = pChar->m_pUserData) != NULL) { |
| pUnknown->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: |
| CFX_RTFBreak(uint32_t dwPolicies); |
| ~CFX_RTFBreak(); |
| void Release() { delete this; } |
| 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(IFX_Font* 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_Unknown* 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 = NULL, |
| FX_AdjustCharDisplayPos pAdjustPos = NULL) 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: |
| 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; |
| IFX_Font* 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_Unknown* m_pUserData; |
| uint32_t m_dwCharType; |
| uint32_t m_dwIdentity; |
| CFX_RTFLine m_RTFLine1; |
| CFX_RTFLine m_RTFLine2; |
| CFX_RTFLine* m_pCurLine; |
| int32_t m_iReady; |
| int32_t m_iTolerance; |
| 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; |
| uint32_t GetUnifiedCharType(uint32_t dwType) 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); |
| }; |
| |
| #endif // XFA_FGAS_LAYOUT_FGAS_RTFBREAK_H_ |
