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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 XFA_FGAS_LAYOUT_FGAS_RTFBREAK_H_
#define XFA_FGAS_LAYOUT_FGAS_RTFBREAK_H_
#include <vector>
#include "core/fxcrt/fx_basic.h"
#include "core/fxcrt/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(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 std::vector<FX_FLOAT>& 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(bool bDefault, FX_FLOAT fWordSpace);
void SetReadingOrder(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,
bool bCharCode = false,
CFX_WideString* pWSForms = nullptr,
FX_AdjustCharDisplayPos pAdjustPos = nullptr) const;
int32_t GetCharRects(const FX_RTFTEXTOBJ* pText,
CFX_RectFArray& rtArray,
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(bool bReady) const;
CFX_RTFPieceArray* GetRTFPieces(bool bReady) const;
FX_CHARTYPE GetUnifiedCharType(FX_CHARTYPE chartype) const;
int32_t GetLastPositionedTab() const;
bool GetPositionedTab(int32_t& iTabPos) const;
int32_t GetBreakPos(CFX_RTFCharArray& tca,
int32_t& iEndPos,
bool bAllChars = false,
bool bOnlyBrk = false);
void SplitTextLine(CFX_RTFLine* pCurLine,
CFX_RTFLine* pNextLine,
bool bAllChars = false);
bool EndBreak_SplitLine(CFX_RTFLine* pNextLine,
bool bAllChars,
uint32_t dwStatus);
void EndBreak_BidiLine(CFX_TPOArray& tpos, uint32_t dwStatus);
void EndBreak_Alignment(CFX_TPOArray& tpos,
bool bAllChars,
uint32_t dwStatus);
uint32_t m_dwPolicies;
int32_t m_iBoundaryStart;
int32_t m_iBoundaryEnd;
uint32_t m_dwLayoutStyles;
bool m_bPagination;
bool m_bVertical;
bool m_bSingleLine;
bool m_bCharCode;
CFGAS_GEFont* m_pFont;
int32_t m_iFontHeight;
int32_t m_iFontSize;
int32_t m_iTabWidth;
CFX_Int32Array m_PositionedTabs;
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;
bool m_bWordSpace;
int32_t m_iWordSpace;
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_
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