1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
// 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_FDE_CFDE_TXTEDTENGINE_H_
#define XFA_FDE_CFDE_TXTEDTENGINE_H_
#include <memory>
#include "core/fxcrt/cfx_retain_ptr.h"
#include "xfa/fde/ifde_txtedtengine.h"
class CFDE_TxtEdtBuf;
class CFDE_TxtEdtPage;
class CFDE_TxtEdtParag;
class CFX_TxtBreak;
class IFDE_TxtEdtDoRecord;
class IFX_CharIter;
class CFDE_TxtEdtEngine {
public:
CFDE_TxtEdtEngine();
~CFDE_TxtEdtEngine();
void SetEditParams(const FDE_TXTEDTPARAMS& params);
FDE_TXTEDTPARAMS* GetEditParams();
int32_t CountPages() const;
CFDE_TxtEdtPage* GetPage(int32_t nIndex);
void SetTextByStream(const CFX_RetainPtr<IFGAS_Stream>& pStream);
void SetText(const CFX_WideString& wsText);
int32_t GetTextLength() const;
CFX_WideString GetText(int32_t nStart, int32_t nCount) const;
void ClearText();
int32_t GetCaretRect(CFX_RectF& rtCaret) const;
int32_t GetCaretPos() const;
int32_t SetCaretPos(int32_t nIndex, bool bBefore);
int32_t MoveCaretPos(FDE_TXTEDTMOVECARET eMoveCaret,
bool bShift = false,
bool bCtrl = false);
void Lock();
void Unlock();
bool IsLocked() const;
int32_t Insert(int32_t nStart, const FX_WCHAR* lpText, int32_t nLength);
int32_t Delete(int32_t nStart, bool bBackspace = false);
int32_t DeleteRange(int32_t nStart, int32_t nCount = -1);
int32_t Replace(int32_t nStart,
int32_t nLength,
const CFX_WideString& wsReplace);
void SetLimit(int32_t nLimit);
void SetAliasChar(FX_WCHAR wcAlias);
void RemoveSelRange(int32_t nStart, int32_t nCount);
void AddSelRange(int32_t nStart, int32_t nCount);
int32_t CountSelRanges() const;
int32_t GetSelRange(int32_t nIndex, int32_t* nStart) const;
void ClearSelection();
bool Redo(const IFDE_TxtEdtDoRecord* pRecord);
bool Undo(const IFDE_TxtEdtDoRecord* pRecord);
int32_t StartLayout();
int32_t DoLayout(IFX_Pause* pPause);
void EndLayout();
int32_t CountParags() const;
CFDE_TxtEdtParag* GetParag(int32_t nParagIndex) const;
IFX_CharIter* CreateCharIter();
CFDE_TxtEdtBuf* GetTextBuf() const;
int32_t GetTextBufLength() const;
CFX_TxtBreak* GetTextBreak() const;
int32_t GetLineCount() const;
int32_t GetPageLineCount() const;
int32_t Line2Parag(int32_t nStartParag,
int32_t nStartLineofParag,
int32_t nLineIndex,
int32_t& nStartLine) const;
FX_WCHAR GetAliasChar() const { return m_wcAliasChar; }
private:
friend class CFDE_TxtEdtDoRecord_Insert;
friend class CFDE_TxtEdtDoRecord_DeleteRange;
friend class CFDE_TxtEdtPage;
struct FDE_TXTEDTSELRANGE {
int32_t nStart;
int32_t nCount;
};
struct FDE_TXTEDTPARAGPOS {
int32_t nParagIndex;
int32_t nCharIndex;
};
void Inner_Insert(int32_t nStart, const FX_WCHAR* lpText, int32_t nLength);
CFX_WideString GetPreDeleteText(int32_t nIndex, int32_t nLength);
CFX_WideString GetPreInsertText(int32_t nIndex,
const FX_WCHAR* lpText,
int32_t nLength);
CFX_WideString GetPreReplaceText(int32_t nIndex,
int32_t nOriginLength,
const FX_WCHAR* lpText,
int32_t nLength);
void Inner_DeleteRange(int32_t nStart, int32_t nCount = -1);
void DeleteRange_DoRecord(int32_t nStart, int32_t nCount, bool bSel = false);
void ResetEngine();
void RebuildParagraphs();
void RemoveAllParags();
void RemoveAllPages();
void UpdateParags();
void UpdatePages();
void UpdateTxtBreak();
bool ReplaceParagEnd(FX_WCHAR*& lpText,
int32_t& nLength,
bool bPreIsCR = false);
void RecoverParagEnd(CFX_WideString& wsText) const;
int32_t MovePage2Char(int32_t nIndex);
void TextPos2ParagPos(int32_t nIndex, FDE_TXTEDTPARAGPOS& ParagPos) const;
int32_t MoveForward(bool& bBefore);
int32_t MoveBackward(bool& bBefore);
bool MoveUp(CFX_PointF& ptCaret);
bool MoveDown(CFX_PointF& ptCaret);
bool MoveLineStart();
bool MoveLineEnd();
bool MoveParagStart();
bool MoveParagEnd();
bool MoveHome();
bool MoveEnd();
bool IsFitArea(CFX_WideString& wsText);
void UpdateCaretRect(int32_t nIndex, bool bBefore = true);
void GetCaretRect(CFX_RectF& rtCaret,
int32_t nPageIndex,
int32_t nCaret,
bool bBefore = true);
void UpdateCaretIndex(const CFX_PointF& ptCaret);
bool IsSelect();
void DeleteSelect();
std::unique_ptr<CFDE_TxtEdtBuf> m_pTxtBuf;
std::unique_ptr<CFX_TxtBreak> m_pTextBreak;
FDE_TXTEDTPARAMS m_Param;
CFX_ArrayTemplate<CFDE_TxtEdtPage*> m_PagePtrArray;
CFX_ArrayTemplate<CFDE_TxtEdtParag*> m_ParagPtrArray;
CFX_ArrayTemplate<FDE_TXTEDTSELRANGE*> m_SelRangePtrArr;
int32_t m_nPageLineCount;
int32_t m_nLineCount;
int32_t m_nAnchorPos;
int32_t m_nLayoutPos;
FX_FLOAT m_fCaretPosReserve;
int32_t m_nCaret;
bool m_bBefore;
int32_t m_nCaretPage;
CFX_RectF m_rtCaret;
uint32_t m_dwFindFlags;
bool m_bLock;
int32_t m_nLimit;
FX_WCHAR m_wcAliasChar;
int32_t m_nFirstLineEnd;
bool m_bAutoLineEnd;
FX_WCHAR m_wLineEnd;
FDE_TXTEDT_TEXTCHANGE_INFO m_ChangeInfo;
};
#endif // XFA_FDE_CFDE_TXTEDTENGINE_H_
|
