// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FGAS_LAYOUT_FGAS_RTFBREAK_H_
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#define XFA_FGAS_LAYOUT_FGAS_RTFBREAK_H_
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#include "core/fxcrt/include/fx_basic.h"
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#include "core/fxcrt/include/fx_ucd.h"
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#include "xfa/fgas/crt/fgas_memory.h"
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#include "xfa/fgas/crt/fgas_utils.h"
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#include "xfa/fgas/layout/fgas_textbreak.h"
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#include "xfa/fgas/layout/fgas_unicode.h"
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class CFGAS_GEFont;
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#define FX_RTFBREAKPOLICY_None 0x00
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#define FX_RTFBREAKPOLICY_SpaceBreak 0x01
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#define FX_RTFBREAKPOLICY_NumberBreak 0x02
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#define FX_RTFBREAKPOLICY_InfixBreak 0x04
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#define FX_RTFBREAKPOLICY_TabBreak 0x08
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#define FX_RTFBREAKPOLICY_OrphanPositionedTab 0x10
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#define FX_RTFBREAK_None 0x00
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#define FX_RTFBREAK_PieceBreak 0x01
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#define FX_RTFBREAK_LineBreak 0x02
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#define FX_RTFBREAK_ParagraphBreak 0x03
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#define FX_RTFBREAK_PageBreak 0x04
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#define FX_RTFLAYOUTSTYLE_Pagination 0x01
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#define FX_RTFLAYOUTSTYLE_VerticalLayout 0x02
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#define FX_RTFLAYOUTSTYLE_VerticalChars 0x04
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#define FX_RTFLAYOUTSTYLE_LineDirection 0x08
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#define FX_RTFLAYOUTSTYLE_ExpandTab 0x10
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#define FX_RTFLAYOUTSTYLE_ArabicNumber 0x20
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#define FX_RTFLAYOUTSTYLE_SingleLine 0x40
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#define FX_RTFLAYOUTSTYLE_MBCSCode 0x80
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#define FX_RTFCHARSTYLE_Alignment 0x000F
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#define FX_RTFCHARSTYLE_ArabicNumber 0x0010
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#define FX_RTFCHARSTYLE_ArabicShadda 0x0020
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#define FX_RTFCHARSTYLE_OddBidiLevel 0x0040
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#define FX_RTFCHARSTYLE_RTLReadingOrder 0x0080
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#define FX_RTFCHARSTYLE_ArabicContext 0x0300
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#define FX_RTFCHARSTYLE_ArabicIndic 0x0400
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#define FX_RTFCHARSTYLE_ArabicComma 0x0800
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#define FX_RTFLINEALIGNMENT_Left 0
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#define FX_RTFLINEALIGNMENT_Center 1
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#define FX_RTFLINEALIGNMENT_Right 2
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#define FX_RTFLINEALIGNMENT_Justified (1 << 2)
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#define FX_RTFLINEALIGNMENT_Distributed (2 << 2)
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#define FX_RTFLINEALIGNMENT_JustifiedLeft \
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(FX_RTFLINEALIGNMENT_Left | FX_RTFLINEALIGNMENT_Justified)
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#define FX_RTFLINEALIGNMENT_JustifiedCenter \
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(FX_RTFLINEALIGNMENT_Center | FX_RTFLINEALIGNMENT_Justified)
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#define FX_RTFLINEALIGNMENT_JustifiedRight \
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(FX_RTFLINEALIGNMENT_Right | FX_RTFLINEALIGNMENT_Justified)
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#define FX_RTFLINEALIGNMENT_DistributedLeft \
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(FX_RTFLINEALIGNMENT_Left | FX_RTFLINEALIGNMENT_Distributed)
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#define FX_RTFLINEALIGNMENT_DistributedCenter \
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(FX_RTFLINEALIGNMENT_Center | FX_RTFLINEALIGNMENT_Distributed)
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#define FX_RTFLINEALIGNMENT_DistributedRight \
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(FX_RTFLINEALIGNMENT_Right | FX_RTFLINEALIGNMENT_Distributed)
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#define FX_RTFLINEALIGNMENT_LowerMask 0x03
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#define FX_RTFLINEALIGNMENT_HigherMask 0x0C
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struct FX_RTFTEXTOBJ {
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FX_RTFTEXTOBJ();
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const FX_WCHAR* pStr;
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int32_t* pWidths;
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int32_t iLength;
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CFGAS_GEFont* pFont;
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FX_FLOAT fFontSize;
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uint32_t dwLayoutStyles;
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int32_t iCharRotation;
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int32_t iBidiLevel;
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const CFX_RectF* pRect;
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FX_WCHAR wLineBreakChar;
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int32_t iHorizontalScale;
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int32_t iVerticalScale;
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};
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class CFX_RTFPiece : public CFX_Target {
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public:
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CFX_RTFPiece();
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~CFX_RTFPiece() override;
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void AppendChar(const CFX_RTFChar& tc) {
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ASSERT(m_pChars);
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m_pChars->Add(tc);
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if (m_iWidth < 0) {
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m_iWidth = tc.m_iCharWidth;
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} else {
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m_iWidth += tc.m_iCharWidth;
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}
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m_iChars++;
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}
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int32_t GetEndPos() const {
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return m_iWidth < 0 ? m_iStartPos : m_iStartPos + m_iWidth;
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}
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int32_t GetLength() const { return m_iChars; }
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int32_t GetEndChar() const { return m_iStartChar + m_iChars; }
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CFX_RTFChar& GetChar(int32_t index) {
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ASSERT(index > -1 && index < m_iChars && m_pChars);
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return *m_pChars->GetDataPtr(m_iStartChar + index);
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}
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CFX_RTFChar* GetCharPtr(int32_t index) const {
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ASSERT(index > -1 && index < m_iChars && m_pChars);
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return m_pChars->GetDataPtr(m_iStartChar + index);
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}
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void GetString(FX_WCHAR* pText) const {
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ASSERT(pText);
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int32_t iEndChar = m_iStartChar + m_iChars;
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CFX_RTFChar* pChar;
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for (int32_t i = m_iStartChar; i < iEndChar; i++) {
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pChar = m_pChars->GetDataPtr(i);
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*pText++ = (FX_WCHAR)pChar->m_wCharCode;
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}
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}
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void GetString(CFX_WideString& wsText) const {
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FX_WCHAR* pText = wsText.GetBuffer(m_iChars);
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GetString(pText);
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wsText.ReleaseBuffer(m_iChars);
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}
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void GetWidths(int32_t* pWidths) const {
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ASSERT(pWidths);
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int32_t iEndChar = m_iStartChar + m_iChars;
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CFX_RTFChar* pChar;
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for (int32_t i = m_iStartChar; i < iEndChar; i++) {
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pChar = m_pChars->GetDataPtr(i);
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*pWidths++ = pChar->m_iCharWidth;
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}
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}
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void Reset() {
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m_dwStatus = FX_RTFBREAK_PieceBreak;
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if (m_iWidth > -1) {
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m_iStartPos += m_iWidth;
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}
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m_iWidth = -1;
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m_iStartChar += m_iChars;
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m_iChars = 0;
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m_iBidiLevel = 0;
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m_iBidiPos = 0;
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m_iHorizontalScale = 100;
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m_iVerticalScale = 100;
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}
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uint32_t m_dwStatus;
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int32_t m_iStartPos;
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int32_t m_iWidth;
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int32_t m_iStartChar;
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int32_t m_iChars;
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int32_t m_iBidiLevel;
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int32_t m_iBidiPos;
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int32_t m_iFontSize;
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int32_t m_iFontHeight;
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int32_t m_iHorizontalScale;
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int32_t m_iVerticalScale;
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uint32_t m_dwLayoutStyles;
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uint32_t m_dwIdentity;
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CFX_RTFCharArray* m_pChars;
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IFX_Retainable* m_pUserData;
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};
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typedef CFX_BaseArrayTemplate<CFX_RTFPiece> CFX_RTFPieceArray;
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class CFX_RTFLine {
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public:
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CFX_RTFLine();
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~CFX_RTFLine();
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int32_t CountChars() const { return m_LineChars.GetSize(); }
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CFX_RTFChar& GetChar(int32_t index) {
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ASSERT(index > -1 && index < m_LineChars.GetSize());
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return *m_LineChars.GetDataPtr(index);
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}
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CFX_RTFChar* GetCharPtr(int32_t index) {
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ASSERT(index > -1 && index < m_LineChars.GetSize());
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return m_LineChars.GetDataPtr(index);
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}
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int32_t CountPieces() const { return m_LinePieces.GetSize(); }
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CFX_RTFPiece& GetPiece(int32_t index) const {
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ASSERT(index > -1 && index < m_LinePieces.GetSize());
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return m_LinePieces.GetAt(index);
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}
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CFX_RTFPiece* GetPiecePtr(int32_t index) const {
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ASSERT(index > -1 && index < m_LinePieces.GetSize());
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return m_LinePieces.GetPtrAt(index);
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}
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int32_t GetLineEnd() const { return m_iStart + m_iWidth; }
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void RemoveAll(FX_BOOL bLeaveMemory = FALSE) {
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CFX_RTFChar* pChar;
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int32_t iCount = m_LineChars.GetSize();
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for (int32_t i = 0; i < iCount; i++) {
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pChar = m_LineChars.GetDataPtr(i);
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if (pChar->m_pUserData)
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pChar->m_pUserData->Release();
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}
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m_LineChars.RemoveAll();
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m_LinePieces.RemoveAll(bLeaveMemory);
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m_iWidth = 0;
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m_iArabicChars = 0;
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m_iMBCSChars = 0;
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}
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CFX_RTFCharArray m_LineChars;
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CFX_RTFPieceArray m_LinePieces;
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int32_t m_iStart;
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int32_t m_iWidth;
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int32_t m_iArabicChars;
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int32_t m_iMBCSChars;
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};
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class CFX_RTFBreak {
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public:
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explicit CFX_RTFBreak(uint32_t dwPolicies);
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~CFX_RTFBreak();
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void SetLineBoundary(FX_FLOAT fLineStart, FX_FLOAT fLineEnd);
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void SetLineStartPos(FX_FLOAT fLinePos);
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uint32_t GetLayoutStyles() const { return m_dwLayoutStyles; }
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void SetLayoutStyles(uint32_t dwLayoutStyles);
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void SetFont(CFGAS_GEFont* pFont);
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void SetFontSize(FX_FLOAT fFontSize);
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void SetTabWidth(FX_FLOAT fTabWidth);
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void AddPositionedTab(FX_FLOAT fTabPos);
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void SetPositionedTabs(const CFX_FloatArray& tabs);
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void ClearPositionedTabs();
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void SetDefaultChar(FX_WCHAR wch);
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void SetLineBreakChar(FX_WCHAR wch);
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void SetLineBreakTolerance(FX_FLOAT fTolerance);
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void SetHorizontalScale(int32_t iScale);
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void SetVerticalScale(int32_t iScale);
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void SetCharRotation(int32_t iCharRotation);
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void SetCharSpace(FX_FLOAT fCharSpace);
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void SetWordSpace(FX_BOOL bDefault, FX_FLOAT fWordSpace);
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void SetReadingOrder(FX_BOOL bRTL = FALSE);
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void SetAlignment(int32_t iAlignment = FX_RTFLINEALIGNMENT_Left);
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void SetUserData(IFX_Retainable* pUserData);
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uint32_t AppendChar(FX_WCHAR wch);
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uint32_t EndBreak(uint32_t dwStatus = FX_RTFBREAK_PieceBreak);
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int32_t CountBreakPieces() const;
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const CFX_RTFPiece* GetBreakPiece(int32_t index) const;
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void GetLineRect(CFX_RectF& rect) const;
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void ClearBreakPieces();
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void Reset();
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int32_t GetDisplayPos(const FX_RTFTEXTOBJ* pText,
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FXTEXT_CHARPOS* pCharPos,
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FX_BOOL bCharCode = FALSE,
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CFX_WideString* pWSForms = nullptr,
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FX_AdjustCharDisplayPos pAdjustPos = nullptr) const;
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int32_t GetCharRects(const FX_RTFTEXTOBJ* pText,
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CFX_RectFArray& rtArray,
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FX_BOOL bCharBBox = FALSE) const;
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uint32_t AppendChar_CharCode(FX_WCHAR wch);
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uint32_t AppendChar_Combination(CFX_RTFChar* pCurChar, int32_t iRotation);
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uint32_t AppendChar_Tab(CFX_RTFChar* pCurChar, int32_t iRotation);
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uint32_t AppendChar_Control(CFX_RTFChar* pCurChar, int32_t iRotation);
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uint32_t AppendChar_Arabic(CFX_RTFChar* pCurChar, int32_t iRotation);
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uint32_t AppendChar_Others(CFX_RTFChar* pCurChar, int32_t iRotation);
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protected:
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int32_t GetLineRotation(uint32_t dwStyles) const;
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void SetBreakStatus();
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CFX_RTFChar* GetLastChar(int32_t index) const;
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CFX_RTFLine* GetRTFLine(FX_BOOL bReady) const;
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CFX_RTFPieceArray* GetRTFPieces(FX_BOOL bReady) const;
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FX_CHARTYPE GetUnifiedCharType(FX_CHARTYPE chartype) const;
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int32_t GetLastPositionedTab() const;
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FX_BOOL GetPositionedTab(int32_t& iTabPos) const;
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int32_t GetBreakPos(CFX_RTFCharArray& tca,
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int32_t& iEndPos,
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FX_BOOL bAllChars = FALSE,
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FX_BOOL bOnlyBrk = FALSE);
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void SplitTextLine(CFX_RTFLine* pCurLine,
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CFX_RTFLine* pNextLine,
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FX_BOOL bAllChars = FALSE);
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FX_BOOL EndBreak_SplitLine(CFX_RTFLine* pNextLine,
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FX_BOOL bAllChars,
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uint32_t dwStatus);
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void EndBreak_BidiLine(CFX_TPOArray& tpos, uint32_t dwStatus);
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void EndBreak_Alignment(CFX_TPOArray& tpos,
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FX_BOOL bAllChars,
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uint32_t dwStatus);
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uint32_t m_dwPolicies;
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int32_t m_iBoundaryStart;
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int32_t m_iBoundaryEnd;
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uint32_t m_dwLayoutStyles;
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FX_BOOL m_bPagination;
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FX_BOOL m_bVertical;
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FX_BOOL m_bSingleLine;
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FX_BOOL m_bCharCode;
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CFGAS_GEFont* m_pFont;
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int32_t m_iFontHeight;
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int32_t m_iFontSize;
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int32_t m_iTabWidth;
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CFX_Int32Array m_PositionedTabs;
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FX_BOOL m_bOrphanLine;
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FX_WCHAR m_wDefChar;
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int32_t m_iDefChar;
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FX_WCHAR m_wLineBreakChar;
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int32_t m_iHorizontalScale;
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int32_t m_iVerticalScale;
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int32_t m_iLineRotation;
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int32_t m_iCharRotation;
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int32_t m_iRotation;
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int32_t m_iCharSpace;
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FX_BOOL m_bWordSpace;
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int32_t m_iWordSpace;
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FX_BOOL m_bRTL;
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int32_t m_iAlignment;
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IFX_Retainable* m_pUserData;
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FX_CHARTYPE m_eCharType;
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uint32_t m_dwIdentity;
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CFX_RTFLine m_RTFLine1;
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CFX_RTFLine m_RTFLine2;
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CFX_RTFLine* m_pCurLine;
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int32_t m_iReady;
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int32_t m_iTolerance;
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};
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#endif // XFA_FGAS_LAYOUT_FGAS_RTFBREAK_H_
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