blob: 19b3f8448432b99a1013d47c85b34f4a6df51f58 (
plain)
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
|
// 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
#include "xfa/fde/cfde_txtedtparag.h"
#include <memory>
#include <vector>
#include "third_party/base/ptr_util.h"
#include "third_party/base/stl_util.h"
#include "xfa/fde/cfde_txtedtbuf.h"
#include "xfa/fde/cfde_txtedtengine.h"
#include "xfa/fde/ifde_txtedtengine.h"
#include "xfa/fde/ifx_chariter.h"
#include "xfa/fgas/layout/fgas_textbreak.h"
CFDE_TxtEdtParag::CFDE_TxtEdtParag(CFDE_TxtEdtEngine* pEngine)
: m_nCharStart(0),
m_nCharCount(0),
m_nLineCount(0),
m_lpData(nullptr),
m_pEngine(pEngine) {
ASSERT(m_pEngine);
}
CFDE_TxtEdtParag::~CFDE_TxtEdtParag() {
if (m_lpData)
FX_Free(m_lpData);
}
void CFDE_TxtEdtParag::LoadParag() {
if (m_lpData) {
m_lpData[0]++;
return;
}
CFX_TxtBreak* pTxtBreak = m_pEngine->GetTextBreak();
CFDE_TxtEdtBuf* pTxtBuf = m_pEngine->GetTextBuf();
const FDE_TXTEDTPARAMS* pParam = m_pEngine->GetEditParams();
wchar_t wcAlias = 0;
if (pParam->dwMode & FDE_TEXTEDITMODE_Password)
wcAlias = m_pEngine->GetAliasChar();
std::unique_ptr<IFX_CharIter> pIter(new CFDE_TxtEdtBuf::Iterator(
static_cast<CFDE_TxtEdtBuf*>(pTxtBuf), wcAlias));
pIter->SetAt(m_nCharStart);
int32_t nEndIndex = m_nCharStart + m_nCharCount;
std::vector<int32_t> LineBaseArr;
bool bReload = false;
CFX_BreakType dwBreakStatus = CFX_BreakType::None;
do {
if (bReload) {
dwBreakStatus = pTxtBreak->EndBreak(CFX_BreakType::Paragraph);
} else {
wchar_t wAppend = pIter->GetChar();
dwBreakStatus = pTxtBreak->AppendChar(wAppend);
}
if (pIter->GetAt() + 1 == nEndIndex &&
CFX_BreakTypeNoneOrPiece(dwBreakStatus)) {
dwBreakStatus = pTxtBreak->EndBreak(CFX_BreakType::Paragraph);
}
if (!CFX_BreakTypeNoneOrPiece(dwBreakStatus)) {
int32_t nCount = pTxtBreak->CountBreakPieces();
int32_t nTotal = 0;
for (int32_t j = 0; j < nCount; j++) {
const CFX_BreakPiece* Piece = pTxtBreak->GetBreakPieceUnstable(j);
nTotal += Piece->GetLength();
}
LineBaseArr.push_back(nTotal);
pTxtBreak->ClearBreakPieces();
}
if (pIter->GetAt() + 1 == nEndIndex &&
dwBreakStatus == CFX_BreakType::Line) {
bReload = true;
pIter->Next(true);
}
} while (pIter->Next(false) && (pIter->GetAt() < nEndIndex));
pTxtBreak->EndBreak(CFX_BreakType::Paragraph);
pTxtBreak->ClearBreakPieces();
int32_t nLineCount = pdfium::CollectionSize<int32_t>(LineBaseArr);
m_nLineCount = nLineCount;
if (m_lpData)
m_lpData = FX_Realloc(int32_t, m_lpData, nLineCount + 1);
else
m_lpData = FX_Alloc(int32_t, nLineCount + 1);
int32_t* pIntArr = m_lpData;
pIntArr[0] = 1;
m_nLineCount = nLineCount;
pIntArr++;
for (int32_t j = 0; j < nLineCount; j++, pIntArr++)
*pIntArr = LineBaseArr[j];
}
void CFDE_TxtEdtParag::UnloadParag() {
m_lpData[0]--;
ASSERT(m_lpData[0] >= 0);
if (m_lpData[0] == 0) {
FX_Free(m_lpData);
m_lpData = nullptr;
}
}
void CFDE_TxtEdtParag::CalcLines() {
CFX_TxtBreak* pTxtBreak = m_pEngine->GetTextBreak();
CFDE_TxtEdtBuf* pTxtBuf = m_pEngine->GetTextBuf();
int32_t nCount = 0;
CFX_BreakType dwBreakStatus = CFX_BreakType::None;
int32_t nEndIndex = m_nCharStart + m_nCharCount;
auto pIter = pdfium::MakeUnique<CFDE_TxtEdtBuf::Iterator>(
static_cast<CFDE_TxtEdtBuf*>(pTxtBuf));
pIter->SetAt(m_nCharStart);
bool bReload = false;
do {
if (bReload) {
dwBreakStatus = pTxtBreak->EndBreak(CFX_BreakType::Paragraph);
} else {
wchar_t wAppend = pIter->GetChar();
dwBreakStatus = pTxtBreak->AppendChar(wAppend);
}
if (pIter->GetAt() + 1 == nEndIndex &&
CFX_BreakTypeNoneOrPiece(dwBreakStatus)) {
dwBreakStatus = pTxtBreak->EndBreak(CFX_BreakType::Paragraph);
}
if (!CFX_BreakTypeNoneOrPiece(dwBreakStatus)) {
nCount++;
pTxtBreak->ClearBreakPieces();
}
if (pIter->GetAt() + 1 == nEndIndex &&
dwBreakStatus == CFX_BreakType::Line) {
bReload = true;
pIter->Next(true);
}
} while (pIter->Next(false) && (pIter->GetAt() < nEndIndex));
pTxtBreak->EndBreak(CFX_BreakType::Paragraph);
pTxtBreak->ClearBreakPieces();
m_nLineCount = nCount;
}
void CFDE_TxtEdtParag::GetLineRange(int32_t nLineIndex,
int32_t& nStart,
int32_t& nCount) const {
int32_t* pLineBaseArr = m_lpData;
ASSERT(nLineIndex < m_nLineCount);
nStart = m_nCharStart;
pLineBaseArr++;
for (int32_t i = 0; i < nLineIndex; i++) {
nStart += *pLineBaseArr;
pLineBaseArr++;
}
nCount = *pLineBaseArr;
}
|
