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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
|
// 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 <vector>
#include "core/fxcrt/cfx_retain_ptr.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxge/fx_dib.h"
#include "xfa/fde/cfde_txtedtbuf.h"
#include "xfa/fde/cfde_txtedtpage.h"
#include "xfa/fde/cfde_txtedtparag.h"
class CFGAS_GEFont;
class CFWL_Edit;
class CFX_TxtBreak;
class IFDE_TxtEdtDoRecord;
class IFX_CharIter;
#define FDE_TEXTEDITMODE_MultiLines (1L << 0)
#define FDE_TEXTEDITMODE_AutoLineWrap (1L << 1)
#define FDE_TEXTEDITMODE_LimitArea_Vert (1L << 3)
#define FDE_TEXTEDITMODE_LimitArea_Horz (1L << 4)
#define FDE_TEXTEDITMODE_Validate (1L << 8)
#define FDE_TEXTEDITMODE_Password (1L << 9)
#define FDE_TEXTEDITALIGN_Left 0
#define FDE_TEXTEDITALIGN_Center (1L << 0)
#define FDE_TEXTEDITALIGN_Right (1L << 1)
#define FDE_TEXTEDITALIGN_Justified (1L << 4)
#define FDE_TEXTEDITLAYOUT_CombText (1L << 4)
#define FDE_TEXTEDITLAYOUT_LastLineHeight (1L << 8)
enum class FDE_CaretMove {
Left,
Right,
Up,
Down,
LineStart,
LineEnd,
Home,
End,
};
struct FDE_TXTEDTPARAMS {
FDE_TXTEDTPARAMS();
~FDE_TXTEDTPARAMS();
float fPlateWidth;
float fPlateHeight;
int32_t nLineCount;
uint32_t dwLayoutStyles;
uint32_t dwAlignment;
uint32_t dwMode;
CFX_RetainPtr<CFGAS_GEFont> pFont;
float fFontSize;
FX_ARGB dwFontColor;
float fLineSpace;
float fTabWidth;
wchar_t wDefChar;
wchar_t wLineBreakChar;
int32_t nLineEnd;
int32_t nHorzScale;
float fCharSpace;
CFWL_Edit* pEventSink;
};
enum FDE_TXTEDT_TEXTCHANGE_TYPE {
FDE_TXTEDT_TEXTCHANGE_TYPE_Insert = 0,
FDE_TXTEDT_TEXTCHANGE_TYPE_Delete,
FDE_TXTEDT_TEXTCHANGE_TYPE_Replace,
};
struct FDE_TXTEDT_TEXTCHANGE_INFO {
FDE_TXTEDT_TEXTCHANGE_INFO();
~FDE_TXTEDT_TEXTCHANGE_INFO();
int32_t nChangeType;
CFX_WideString wsInsert;
CFX_WideString wsDelete;
CFX_WideString wsPrevText;
};
class CFDE_TxtEdtEngine {
public:
CFDE_TxtEdtEngine();
~CFDE_TxtEdtEngine();
void SetEditParams(const FDE_TXTEDTPARAMS& params);
FDE_TXTEDTPARAMS* GetEditParams() { return &m_Param; }
CFDE_TxtEdtPage* GetPage(int32_t nIndex);
void SetText(const CFX_WideString& wsText);
int32_t GetTextLength() const { return m_pTxtBuf->GetTextLength() - 1; }
CFX_WideString GetText(int32_t nStart, int32_t nCount) const;
void ClearText();
CFX_RectF GetCaretRect() const { return m_rtCaret; }
int32_t GetCaretPos() const {
return IsLocked() ? 0 : m_nCaret + (m_bBefore ? 0 : 1);
}
int32_t SetCaretPos(int32_t nIndex, bool bBefore);
int32_t MoveCaretPos(FDE_CaretMove eMoveCaret, bool bShift);
int32_t Insert(const CFX_WideString& str);
void Delete(bool bBackspace);
void SetLimit(int32_t nLimit) { m_nLimit = nLimit; }
int32_t GetLimit() const { return m_nLimit; }
void SetAliasChar(wchar_t wcAlias) { m_wcAliasChar = wcAlias; }
void RemoveSelRange(int32_t nStart, int32_t nCount);
void AddSelRange(int32_t nStart, int32_t nCount);
int32_t CountSelRanges() const {
return pdfium::CollectionSize<int32_t>(m_SelRangePtrArr);
}
int32_t GetSelRange(int32_t nIndex, int32_t* nStart) const;
void ClearSelection();
bool Redo(const IFDE_TxtEdtDoRecord* pRecord);
bool Undo(const IFDE_TxtEdtDoRecord* pRecord);
void Layout();
CFDE_TxtEdtParag* GetParag(int32_t nParagIndex) const {
return m_ParagPtrArray[nParagIndex].get();
}
CFDE_TxtEdtBuf* GetTextBuf() const { return m_pTxtBuf.get(); }
CFX_TxtBreak* GetTextBreak() const { return m_pTextBreak.get(); }
int32_t GetLineCount() const { return m_nLineCount; }
int32_t GetPageLineCount() const { return m_nPageLineCount; }
int32_t Line2Parag(int32_t nStartParag,
int32_t nStartLineofParag,
int32_t nLineIndex,
int32_t& nStartLine) const;
wchar_t GetAliasChar() const { return m_wcAliasChar; }
bool IsSelect() const { return !m_SelRangePtrArr.empty(); }
void Inner_DeleteRange(int32_t nStart, int32_t nCount);
void Inner_Insert(int32_t nStart, const wchar_t* lpText, int32_t nLength);
const FDE_TXTEDTPARAMS* GetParams() const { return &m_Param; }
FDE_TXTEDT_TEXTCHANGE_INFO* GetChangeInfo() { return &m_ChangeInfo; }
void UpdateChangeInfoInsert(int32_t type, const CFX_WideString& insertValue) {
m_ChangeInfo.nChangeType = type;
m_ChangeInfo.wsInsert = insertValue;
}
void UpdateChangeInfoDelete(int32_t type, const CFX_WideString& deleteValue) {
m_ChangeInfo.nChangeType = type;
m_ChangeInfo.wsDelete = deleteValue;
}
private:
struct FDE_TXTEDTSELRANGE {
int32_t nStart;
int32_t nCount;
};
struct FDE_TXTEDTPARAGPOS {
int32_t nParagIndex;
int32_t nCharIndex;
};
int32_t CountPages() const {
return m_nLineCount == 0 ? 0 : ((m_nLineCount - 1) / m_nPageLineCount) + 1;
}
bool IsLocked() const { return m_bLock; }
CFX_WideString GetPreDeleteText(int32_t nIndex, int32_t nLength);
CFX_WideString GetPreInsertText(int32_t nIndex,
const wchar_t* lpText,
int32_t nLength);
CFX_WideString GetPreReplaceText(int32_t nIndex,
int32_t nOriginLength,
const wchar_t* lpText,
int32_t nLength);
void DeleteRange_DoRecord(int32_t nStart, int32_t nCount, bool bSel);
void ResetEngine();
void RebuildParagraphs();
void RemoveAllParags() { m_ParagPtrArray.clear(); }
void RemoveAllPages() { m_PagePtrArray.clear(); }
void UpdateLineCounts();
void UpdatePages();
void UpdateTxtBreak();
bool ReplaceParagEnd(wchar_t*& lpText, int32_t& nLength, bool bPreIsCR);
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 MoveHome();
bool MoveEnd();
bool IsFitArea(CFX_WideString& wsText);
void UpdateCaretRect(int32_t nIndex, bool bBefore);
void GetCaretRect(CFX_RectF& rtCaret,
int32_t nPageIndex,
int32_t nCaret,
bool bBefore);
void UpdateCaretIndex(const CFX_PointF& ptCaret);
void DeleteSelect();
std::unique_ptr<CFDE_TxtEdtBuf> m_pTxtBuf;
std::unique_ptr<CFX_TxtBreak> m_pTextBreak;
FDE_TXTEDTPARAMS m_Param;
std::vector<std::unique_ptr<CFDE_TxtEdtPage>> m_PagePtrArray;
std::vector<std::unique_ptr<CFDE_TxtEdtParag>> m_ParagPtrArray;
std::vector<std::unique_ptr<FDE_TXTEDTSELRANGE>> m_SelRangePtrArr;
int32_t m_nPageLineCount;
int32_t m_nLineCount;
int32_t m_nAnchorPos;
float m_fCaretPosReserve;
int32_t m_nCaret;
bool m_bBefore;
int32_t m_nCaretPage;
CFX_RectF m_rtCaret;
bool m_bLock;
int32_t m_nLimit;
wchar_t m_wcAliasChar;
int32_t m_nFirstLineEnd;
bool m_bAutoLineEnd;
wchar_t m_wLineEnd;
FDE_TXTEDT_TEXTCHANGE_INFO m_ChangeInfo;
};
#endif // XFA_FDE_CFDE_TXTEDTENGINE_H_
|
