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// 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_RTFBREAK_IMP
#define _FX_RTFBREAK_IMP
#include "core/include/fxcrt/fx_arb.h"
class CFX_RTFLine;
class CFX_RTFBreak;
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) {
FXSYS_assert(index > -1 && index < m_LineChars.GetSize());
return *m_LineChars.GetDataPtr(index);
}
CFX_RTFChar* GetCharPtr(int32_t index) {
FXSYS_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 {
FXSYS_assert(index > -1 && index < m_LinePieces.GetSize());
return m_LinePieces.GetAt(index);
}
CFX_RTFPiece* GetPiecePtr(int32_t index) const {
FXSYS_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 IFX_RTFBreak {
public:
CFX_RTFBreak(FX_DWORD dwPolicies);
~CFX_RTFBreak();
virtual void Release() { delete this; }
void SetLineBoundary(FX_FLOAT fLineStart, FX_FLOAT fLineEnd) override final;
void SetLineStartPos(FX_FLOAT fLinePos) override final;
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);
virtual void AddPositionedTab(FX_FLOAT fTabPos);
virtual void SetPositionedTabs(const CFX_FloatArray& tabs);
virtual void ClearPositionedTabs();
virtual void SetDefaultChar(FX_WCHAR wch);
virtual void SetLineBreakChar(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 SetWordSpace(FX_BOOL bDefault, FX_FLOAT fWordSpace);
virtual void SetReadingOrder(FX_BOOL bRTL = FALSE);
virtual void SetAlignment(int32_t iAlignment = FX_RTFLINEALIGNMENT_Left);
virtual void SetUserData(IFX_Unknown* pUserData);
virtual FX_DWORD AppendChar(FX_WCHAR wch);
virtual FX_DWORD EndBreak(FX_DWORD dwStatus = FX_RTFBREAK_PieceBreak);
virtual int32_t CountBreakPieces() const;
virtual const CFX_RTFPiece* GetBreakPiece(int32_t index) const;
virtual void GetLineRect(CFX_RectF& rect) const;
virtual void ClearBreakPieces();
virtual void Reset();
virtual int32_t GetDisplayPos(
FX_LPCRTFTEXTOBJ pText,
FXTEXT_CHARPOS* pCharPos,
FX_BOOL bCharCode = FALSE,
CFX_WideString* pWSForms = NULL,
FX_AdjustCharDisplayPos pAdjustPos = NULL) const;
virtual int32_t GetCharRects(FX_LPCRTFTEXTOBJ pText,
CFX_RectFArray& rtArray,
FX_BOOL bCharBBox = FALSE) const;
FX_DWORD AppendChar_CharCode(FX_WCHAR wch);
FX_DWORD AppendChar_Combination(CFX_RTFChar* pCurChar, int32_t iRotation);
FX_DWORD AppendChar_Tab(CFX_RTFChar* pCurChar, int32_t iRotation);
FX_DWORD AppendChar_Control(CFX_RTFChar* pCurChar, int32_t iRotation);
FX_DWORD AppendChar_Arabic(CFX_RTFChar* pCurChar, int32_t iRotation);
FX_DWORD AppendChar_Others(CFX_RTFChar* pCurChar, int32_t iRotation);
protected:
FX_DWORD m_dwPolicies;
IFX_ArabicChar* m_pArabicChar;
int32_t m_iBoundaryStart;
int32_t m_iBoundaryEnd;
FX_DWORD 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;
FX_DWORD m_dwCharType;
FX_DWORD 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(FX_DWORD 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_DWORD GetUnifiedCharType(FX_DWORD 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,
FX_DWORD dwStatus);
void EndBreak_BidiLine(CFX_TPOArray& tpos, FX_DWORD dwStatus);
void EndBreak_Alignment(CFX_TPOArray& tpos,
FX_BOOL bAllChars,
FX_DWORD dwStatus);
};
#endif
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