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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
class CFX_RTFLine;
class CFX_RTFBreak;
class CFX_RTFLine : public CFX_Object
{
public:
CFX_RTFLine() : m_LinePieces(16)
, m_iStart(0)
, m_iWidth(0)
, m_iArabicChars(0)
, m_iMBCSChars(0)
{
}
~CFX_RTFLine()
{
RemoveAll();
}
FX_INT32 CountChars() const
{
return m_LineChars.GetSize();
}
CFX_RTFChar& GetChar(FX_INT32 index)
{
FXSYS_assert(index > -1 && index < m_LineChars.GetSize());
return *m_LineChars.GetDataPtr(index);
}
CFX_RTFChar* GetCharPtr(FX_INT32 index)
{
FXSYS_assert(index > -1 && index < m_LineChars.GetSize());
return m_LineChars.GetDataPtr(index);
}
FX_INT32 CountPieces() const
{
return m_LinePieces.GetSize();
}
CFX_RTFPiece& GetPiece(FX_INT32 index) const
{
FXSYS_assert(index > -1 && index < m_LinePieces.GetSize());
return m_LinePieces.GetAt(index);
}
CFX_RTFPiece* GetPiecePtr(FX_INT32 index) const
{
FXSYS_assert(index > -1 && index < m_LinePieces.GetSize());
return m_LinePieces.GetPtrAt(index);
}
FX_INT32 GetLineEnd() const
{
return m_iStart + m_iWidth;
}
void RemoveAll(FX_BOOL bLeaveMemory = FALSE)
{
CFX_RTFChar *pChar;
IFX_Unknown *pUnknown;
FX_INT32 iCount = m_LineChars.GetSize();
for (FX_INT32 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;
FX_INT32 m_iStart;
FX_INT32 m_iWidth;
FX_INT32 m_iArabicChars;
FX_INT32 m_iMBCSChars;
};
class CFX_RTFBreak : public IFX_RTFBreak, public CFX_Object
{
public:
CFX_RTFBreak(FX_DWORD dwPolicies);
~CFX_RTFBreak();
virtual void Release()
{
delete this;
}
virtual void SetLineWidth(FX_FLOAT fLineStart, FX_FLOAT fLineEnd);
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);
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(FX_INT32 iScale);
virtual void SetVerticalScale(FX_INT32 iScale);
virtual void SetCharRotation(FX_INT32 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(FX_INT32 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 FX_INT32 CountBreakPieces() const;
virtual const CFX_RTFPiece* GetBreakPiece(FX_INT32 index) const;
virtual void GetLineRect(CFX_RectF &rect) const;
virtual void ClearBreakPieces();
virtual void Reset();
virtual FX_INT32 GetDisplayPos(FX_LPCRTFTEXTOBJ pText, FXTEXT_CHARPOS *pCharPos, FX_BOOL bCharCode = FALSE, CFX_WideString *pWSForms = NULL, FX_AdjustCharDisplayPos pAdjustPos = NULL) const;
virtual FX_INT32 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, FX_INT32 iRotation);
FX_DWORD AppendChar_Tab(CFX_RTFChar *pCurChar, FX_INT32 iRotation);
FX_DWORD AppendChar_Control(CFX_RTFChar *pCurChar, FX_INT32 iRotation);
FX_DWORD AppendChar_Arabic(CFX_RTFChar *pCurChar, FX_INT32 iRotation);
FX_DWORD AppendChar_Others(CFX_RTFChar *pCurChar, FX_INT32 iRotation);
protected:
FX_DWORD m_dwPolicies;
IFX_ArabicChar *m_pArabicChar;
FX_INT32 m_iLineStart;
FX_INT32 m_iLineEnd;
FX_DWORD m_dwLayoutStyles;
FX_BOOL m_bPagination;
FX_BOOL m_bVertical;
FX_BOOL m_bSingleLine;
FX_BOOL m_bCharCode;
IFX_Font *m_pFont;
FX_INT32 m_iFontHeight;
FX_INT32 m_iFontSize;
FX_INT32 m_iTabWidth;
CFX_Int32Array m_PositionedTabs;
FX_BOOL m_bOrphanLine;
FX_WCHAR m_wDefChar;
FX_INT32 m_iDefChar;
FX_WCHAR m_wLineBreakChar;
FX_INT32 m_iHorizontalScale;
FX_INT32 m_iVerticalScale;
FX_INT32 m_iLineRotation;
FX_INT32 m_iCharRotation;
FX_INT32 m_iRotation;
FX_INT32 m_iCharSpace;
FX_BOOL m_bWordSpace;
FX_INT32 m_iWordSpace;
FX_BOOL m_bRTL;
FX_INT32 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;
FX_INT32 m_iReady;
FX_INT32 m_iTolerance;
FX_INT32 GetLineRotation(FX_DWORD dwStyles) const;
void SetBreakStatus();
CFX_RTFChar* GetLastChar(FX_INT32 index) const;
CFX_RTFLine* GetRTFLine(FX_BOOL bReady) const;
CFX_RTFPieceArray* GetRTFPieces(FX_BOOL bReady) const;
FX_DWORD GetUnifiedCharType(FX_DWORD dwType) const;
FX_INT32 GetLastPositionedTab() const;
FX_BOOL GetPositionedTab(FX_INT32 &iTabPos) const;
FX_INT32 GetBreakPos(CFX_RTFCharArray &tca, FX_INT32 &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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