1// Copyright 2014 PDFium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7#ifndef _FX_RTFBREAK_IMP
8#define _FX_RTFBREAK_IMP
9
10#include "core/include/fxcrt/fx_arb.h"
11
12class CFX_RTFLine;
13class CFX_RTFBreak;
14class CFX_RTFLine {
15 public:
16  CFX_RTFLine()
17      : m_LinePieces(16),
18        m_iStart(0),
19        m_iWidth(0),
20        m_iArabicChars(0),
21        m_iMBCSChars(0) {}
22  ~CFX_RTFLine() { RemoveAll(); }
23  int32_t CountChars() const { return m_LineChars.GetSize(); }
24  CFX_RTFChar& GetChar(int32_t index) {
25    FXSYS_assert(index > -1 && index < m_LineChars.GetSize());
26    return *m_LineChars.GetDataPtr(index);
27  }
28  CFX_RTFChar* GetCharPtr(int32_t index) {
29    FXSYS_assert(index > -1 && index < m_LineChars.GetSize());
30    return m_LineChars.GetDataPtr(index);
31  }
32  int32_t CountPieces() const { return m_LinePieces.GetSize(); }
33  CFX_RTFPiece& GetPiece(int32_t index) const {
34    FXSYS_assert(index > -1 && index < m_LinePieces.GetSize());
35    return m_LinePieces.GetAt(index);
36  }
37  CFX_RTFPiece* GetPiecePtr(int32_t index) const {
38    FXSYS_assert(index > -1 && index < m_LinePieces.GetSize());
39    return m_LinePieces.GetPtrAt(index);
40  }
41  int32_t GetLineEnd() const { return m_iStart + m_iWidth; }
42  void RemoveAll(FX_BOOL bLeaveMemory = FALSE) {
43    CFX_RTFChar* pChar;
44    IFX_Unknown* pUnknown;
45    int32_t iCount = m_LineChars.GetSize();
46    for (int32_t i = 0; i < iCount; i++) {
47      pChar = m_LineChars.GetDataPtr(i);
48      if ((pUnknown = pChar->m_pUserData) != NULL) {
49        pUnknown->Release();
50      }
51    }
52    m_LineChars.RemoveAll();
53    m_LinePieces.RemoveAll(bLeaveMemory);
54    m_iWidth = 0;
55    m_iArabicChars = 0;
56    m_iMBCSChars = 0;
57  }
58  CFX_RTFCharArray m_LineChars;
59  CFX_RTFPieceArray m_LinePieces;
60  int32_t m_iStart;
61  int32_t m_iWidth;
62  int32_t m_iArabicChars;
63  int32_t m_iMBCSChars;
64};
65class CFX_RTFBreak : public IFX_RTFBreak {
66 public:
67  CFX_RTFBreak(FX_DWORD dwPolicies);
68  ~CFX_RTFBreak();
69  void Release() override { delete this; }
70  void SetLineBoundary(FX_FLOAT fLineStart, FX_FLOAT fLineEnd) override final;
71  void SetLineStartPos(FX_FLOAT fLinePos) override final;
72  FX_DWORD GetLayoutStyles() const override { return m_dwLayoutStyles; }
73  void SetLayoutStyles(FX_DWORD dwLayoutStyles) override;
74  void SetFont(IFX_Font* pFont) override;
75  void SetFontSize(FX_FLOAT fFontSize) override;
76  void SetTabWidth(FX_FLOAT fTabWidth) override;
77  void AddPositionedTab(FX_FLOAT fTabPos) override;
78  void SetPositionedTabs(const CFX_FloatArray& tabs) override;
79  void ClearPositionedTabs() override;
80  void SetDefaultChar(FX_WCHAR wch) override;
81  void SetLineBreakChar(FX_WCHAR wch) override;
82  void SetLineBreakTolerance(FX_FLOAT fTolerance) override;
83  void SetHorizontalScale(int32_t iScale) override;
84  void SetVerticalScale(int32_t iScale) override;
85  void SetCharRotation(int32_t iCharRotation) override;
86  void SetCharSpace(FX_FLOAT fCharSpace) override;
87  void SetWordSpace(FX_BOOL bDefault, FX_FLOAT fWordSpace) override;
88  void SetReadingOrder(FX_BOOL bRTL = FALSE) override;
89  void SetAlignment(int32_t iAlignment = FX_RTFLINEALIGNMENT_Left) override;
90  void SetUserData(IFX_Unknown* pUserData) override;
91  FX_DWORD AppendChar(FX_WCHAR wch) override;
92  FX_DWORD EndBreak(FX_DWORD dwStatus = FX_RTFBREAK_PieceBreak) override;
93  int32_t CountBreakPieces() const override;
94  const CFX_RTFPiece* GetBreakPiece(int32_t index) const override;
95  void GetLineRect(CFX_RectF& rect) const override;
96  void ClearBreakPieces() override;
97  void Reset() override;
98  int32_t GetDisplayPos(
99      FX_LPCRTFTEXTOBJ pText,
100      FXTEXT_CHARPOS* pCharPos,
101      FX_BOOL bCharCode = FALSE,
102      CFX_WideString* pWSForms = NULL,
103      FX_AdjustCharDisplayPos pAdjustPos = NULL) const override;
104  int32_t GetCharRects(FX_LPCRTFTEXTOBJ pText,
105                       CFX_RectFArray& rtArray,
106                       FX_BOOL bCharBBox = FALSE) const override;
107  FX_DWORD AppendChar_CharCode(FX_WCHAR wch);
108  FX_DWORD AppendChar_Combination(CFX_RTFChar* pCurChar, int32_t iRotation);
109  FX_DWORD AppendChar_Tab(CFX_RTFChar* pCurChar, int32_t iRotation);
110  FX_DWORD AppendChar_Control(CFX_RTFChar* pCurChar, int32_t iRotation);
111  FX_DWORD AppendChar_Arabic(CFX_RTFChar* pCurChar, int32_t iRotation);
112  FX_DWORD AppendChar_Others(CFX_RTFChar* pCurChar, int32_t iRotation);
113
114 protected:
115  FX_DWORD m_dwPolicies;
116  IFX_ArabicChar* m_pArabicChar;
117  int32_t m_iBoundaryStart;
118  int32_t m_iBoundaryEnd;
119  FX_DWORD m_dwLayoutStyles;
120  FX_BOOL m_bPagination;
121  FX_BOOL m_bVertical;
122  FX_BOOL m_bSingleLine;
123  FX_BOOL m_bCharCode;
124  IFX_Font* m_pFont;
125  int32_t m_iFontHeight;
126  int32_t m_iFontSize;
127  int32_t m_iTabWidth;
128  CFX_Int32Array m_PositionedTabs;
129  FX_BOOL m_bOrphanLine;
130  FX_WCHAR m_wDefChar;
131  int32_t m_iDefChar;
132  FX_WCHAR m_wLineBreakChar;
133  int32_t m_iHorizontalScale;
134  int32_t m_iVerticalScale;
135  int32_t m_iLineRotation;
136  int32_t m_iCharRotation;
137  int32_t m_iRotation;
138  int32_t m_iCharSpace;
139  FX_BOOL m_bWordSpace;
140  int32_t m_iWordSpace;
141  FX_BOOL m_bRTL;
142  int32_t m_iAlignment;
143  IFX_Unknown* m_pUserData;
144  FX_DWORD m_dwCharType;
145  FX_DWORD m_dwIdentity;
146  CFX_RTFLine m_RTFLine1;
147  CFX_RTFLine m_RTFLine2;
148  CFX_RTFLine* m_pCurLine;
149  int32_t m_iReady;
150  int32_t m_iTolerance;
151  int32_t GetLineRotation(FX_DWORD dwStyles) const;
152  void SetBreakStatus();
153  CFX_RTFChar* GetLastChar(int32_t index) const;
154  CFX_RTFLine* GetRTFLine(FX_BOOL bReady) const;
155  CFX_RTFPieceArray* GetRTFPieces(FX_BOOL bReady) const;
156  FX_DWORD GetUnifiedCharType(FX_DWORD dwType) const;
157  int32_t GetLastPositionedTab() const;
158  FX_BOOL GetPositionedTab(int32_t& iTabPos) const;
159  int32_t GetBreakPos(CFX_RTFCharArray& tca,
160                      int32_t& iEndPos,
161                      FX_BOOL bAllChars = FALSE,
162                      FX_BOOL bOnlyBrk = FALSE);
163  void SplitTextLine(CFX_RTFLine* pCurLine,
164                     CFX_RTFLine* pNextLine,
165                     FX_BOOL bAllChars = FALSE);
166  FX_BOOL EndBreak_SplitLine(CFX_RTFLine* pNextLine,
167                             FX_BOOL bAllChars,
168                             FX_DWORD dwStatus);
169  void EndBreak_BidiLine(CFX_TPOArray& tpos, FX_DWORD dwStatus);
170  void EndBreak_Alignment(CFX_TPOArray& tpos,
171                          FX_BOOL bAllChars,
172                          FX_DWORD dwStatus);
173};
174#endif
175