| // 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 _FX_TEXTBREAK_IMP |
| #define _FX_TEXTBREAK_IMP |
| |
| #include "core/include/fxcrt/fx_memory.h" |
| |
| class IFX_ArabicChar; |
| class CFX_Txtbreak; |
| |
| class CFX_TxtLine { |
| public: |
| CFX_TxtLine(int32_t iBlockSize) |
| : m_iStart(0), m_iWidth(0), m_iArabicChars(0) { |
| m_pLineChars = new CFX_TxtCharArray; |
| m_pLinePieces = new CFX_TxtPieceArray(16); |
| } |
| ~CFX_TxtLine() { |
| RemoveAll(); |
| delete m_pLineChars; |
| delete m_pLinePieces; |
| } |
| int32_t CountChars() const { return m_pLineChars->GetSize(); } |
| CFX_TxtChar* GetCharPtr(int32_t index) const { |
| FXSYS_assert(index > -1 && index < m_pLineChars->GetSize()); |
| return m_pLineChars->GetDataPtr(index); |
| } |
| int32_t CountPieces() const { return m_pLinePieces->GetSize(); } |
| CFX_TxtPiece* GetPiecePtr(int32_t index) const { |
| FXSYS_assert(index > -1 && index < m_pLinePieces->GetSize()); |
| return m_pLinePieces->GetPtrAt(index); |
| } |
| void GetString(CFX_WideString& wsStr) const { |
| int32_t iCount = m_pLineChars->GetSize(); |
| FX_WCHAR* pBuf = wsStr.GetBuffer(iCount); |
| CFX_Char* pChar; |
| for (int32_t i = 0; i < iCount; i++) { |
| pChar = m_pLineChars->GetDataPtr(i); |
| *pBuf++ = (FX_WCHAR)pChar->m_wCharCode; |
| } |
| wsStr.ReleaseBuffer(iCount); |
| } |
| void RemoveAll(FX_BOOL bLeaveMemory = FALSE) { |
| m_pLineChars->RemoveAll(); |
| m_pLinePieces->RemoveAll(bLeaveMemory); |
| m_iWidth = 0; |
| m_iArabicChars = 0; |
| } |
| CFX_TxtCharArray* m_pLineChars; |
| CFX_TxtPieceArray* m_pLinePieces; |
| int32_t m_iStart; |
| int32_t m_iWidth; |
| int32_t m_iArabicChars; |
| }; |
| class CFX_TxtBreak : public IFX_TxtBreak { |
| public: |
| CFX_TxtBreak(FX_DWORD dwPolicies); |
| ~CFX_TxtBreak(); |
| virtual void Release() { delete this; } |
| virtual void SetLineWidth(FX_FLOAT fLineWidth); |
| virtual void SetLinePos(FX_FLOAT fLinePos); |
| virtual FX_DWORD GetLayoutStyles() const { return m_dwLayoutStyles; } |
| virtual void SetLayoutStyles(FX_DWORD dwLayoutStyles); |
| virtual void SetFont(IFX_Font* pFont); |
| virtual void SetFontSize(FX_FLOAT fFontSize); |
| virtual void SetTabWidth(FX_FLOAT fTabWidth, FX_BOOL bEquidistant); |
| virtual void SetDefaultChar(FX_WCHAR wch); |
| virtual void SetParagraphBreakChar(FX_WCHAR wch); |
| virtual void SetLineBreakTolerance(FX_FLOAT fTolerance); |
| virtual void SetHorizontalScale(int32_t iScale); |
| virtual void SetVerticalScale(int32_t iScale); |
| virtual void SetCharRotation(int32_t iCharRotation); |
| virtual void SetCharSpace(FX_FLOAT fCharSpace); |
| virtual void SetAlignment(int32_t iAlignment); |
| virtual FX_DWORD GetContextCharStyles() const; |
| virtual void SetContextCharStyles(FX_DWORD dwCharStyles); |
| virtual void SetCombWidth(FX_FLOAT fCombWidth); |
| virtual void SetUserData(void* pUserData); |
| virtual FX_DWORD AppendChar(FX_WCHAR wch); |
| virtual FX_DWORD EndBreak(FX_DWORD dwStatus = FX_TXTBREAK_PieceBreak); |
| virtual int32_t CountBreakChars() const; |
| virtual int32_t CountBreakPieces() const; |
| virtual const CFX_TxtPiece* GetBreakPiece(int32_t index) const; |
| virtual void ClearBreakPieces(); |
| virtual void Reset(); |
| virtual int32_t GetDisplayPos( |
| FX_LPCTXTRUN pTxtRun, |
| FXTEXT_CHARPOS* pCharPos, |
| FX_BOOL bCharCode = FALSE, |
| CFX_WideString* pWSForms = NULL, |
| FX_AdjustCharDisplayPos pAdjustPos = NULL) const; |
| virtual int32_t GetCharRects(FX_LPCTXTRUN pTxtRun, |
| CFX_RectFArray& rtArray, |
| FX_BOOL bCharBBox = FALSE) const; |
| void AppendChar_PageLoad(CFX_Char* pCurChar, FX_DWORD dwProps); |
| FX_DWORD AppendChar_Combination(CFX_Char* pCurChar, int32_t iRotation); |
| FX_DWORD AppendChar_Tab(CFX_Char* pCurChar, int32_t iRotation); |
| FX_DWORD AppendChar_Control(CFX_Char* pCurChar, int32_t iRotation); |
| FX_DWORD AppendChar_Arabic(CFX_Char* pCurChar, int32_t iRotation); |
| FX_DWORD AppendChar_Others(CFX_Char* pCurChar, int32_t iRotation); |
| |
| protected: |
| FX_DWORD m_dwPolicies; |
| FX_BOOL m_bPagination; |
| IFX_ArabicChar* m_pArabicChar; |
| int32_t m_iLineWidth; |
| FX_DWORD m_dwLayoutStyles; |
| FX_BOOL m_bVertical; |
| FX_BOOL m_bArabicContext; |
| FX_BOOL m_bArabicShapes; |
| FX_BOOL m_bRTL; |
| FX_BOOL m_bSingleLine; |
| FX_BOOL m_bCombText; |
| int32_t m_iArabicContext; |
| int32_t m_iCurArabicContext; |
| IFX_Font* m_pFont; |
| int32_t m_iFontSize; |
| FX_BOOL m_bEquidistant; |
| int32_t m_iTabWidth; |
| FX_WCHAR m_wDefChar; |
| FX_WCHAR m_wParagBreakChar; |
| int32_t m_iDefChar; |
| int32_t m_iLineRotation; |
| int32_t m_iCharRotation; |
| int32_t m_iRotation; |
| int32_t m_iAlignment; |
| FX_DWORD m_dwContextCharStyles; |
| int32_t m_iCombWidth; |
| void* m_pUserData; |
| FX_DWORD m_dwCharType; |
| FX_BOOL m_bCurRTL; |
| int32_t m_iCurAlignment; |
| FX_BOOL m_bArabicNumber; |
| FX_BOOL m_bArabicComma; |
| CFX_TxtLine* m_pTxtLine1; |
| CFX_TxtLine* m_pTxtLine2; |
| CFX_TxtLine* m_pCurLine; |
| int32_t m_iReady; |
| int32_t m_iTolerance; |
| int32_t m_iHorScale; |
| int32_t m_iVerScale; |
| int32_t m_iCharSpace; |
| void SetBreakStatus(); |
| int32_t GetLineRotation(FX_DWORD dwStyles) const; |
| CFX_TxtChar* GetLastChar(int32_t index, FX_BOOL bOmitChar = TRUE) const; |
| CFX_TxtLine* GetTxtLine(FX_BOOL bReady) const; |
| CFX_TxtPieceArray* GetTxtPieces(FX_BOOL bReady) const; |
| FX_DWORD GetUnifiedCharType(FX_DWORD dwType) const; |
| void ResetArabicContext(); |
| void ResetContextCharStyles(); |
| void EndBreak_UpdateArabicShapes(); |
| FX_BOOL EndBreak_SplitLine(CFX_TxtLine* pNextLine, |
| FX_BOOL bAllChars, |
| FX_DWORD dwStatus); |
| void EndBreak_BidiLine(CFX_TPOArray& tpos, FX_DWORD dwStatus); |
| void EndBreak_Alignment(CFX_TPOArray& tpos, |
| FX_BOOL bAllChars, |
| FX_DWORD dwStatus); |
| int32_t GetBreakPos(CFX_TxtCharArray& ca, |
| int32_t& iEndPos, |
| FX_BOOL bAllChars = FALSE, |
| FX_BOOL bOnlyBrk = FALSE); |
| void SplitTextLine(CFX_TxtLine* pCurLine, |
| CFX_TxtLine* pNextLine, |
| FX_BOOL bAllChars = FALSE); |
| }; |
| #endif |