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
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*! \class TextEditFindWidget
\brief A search bar that is commonly added below the searchable text.
\internal
This widget implements a search bar which becomes visible when the user
wants to start searching. It is a modern replacement for the commonly used
search dialog. It is usually placed below a QTextEdit using a QVBoxLayout.
The QTextEdit instance will need to be associated with this class using
setTextEdit().
The search is incremental and can be set to case sensitive or whole words
using buttons available on the search bar.
\sa QTextEdit
*/
#include "texteditfindwidget.h"
#include <QtGui/QCheckBox>
#include <QtGui/QTextCursor>
#include <QtGui/QTextEdit>
QT_BEGIN_NAMESPACE
/*!
Constructs a TextEditFindWidget.
\a flags is passed to the AbstractFindWidget constructor.
\a parent is passed to the QWidget constructor.
*/
TextEditFindWidget::TextEditFindWidget(FindFlags flags, QWidget *parent)
: AbstractFindWidget(flags, parent)
, m_textEdit(0)
{
}
/*!
Associates a QTextEdit with this find widget. Searches done using this find
widget will then apply to the given QTextEdit.
An event filter is set on the QTextEdit which intercepts the ESC key while
the find widget is active, and uses it to deactivate the find widget.
If the find widget is already associated with a QTextEdit, the event filter
is removed from this QTextEdit first.
\a textEdit may be NULL.
*/
void TextEditFindWidget::setTextEdit(QTextEdit *textEdit)
{
if (m_textEdit)
m_textEdit->removeEventFilter(this);
m_textEdit = textEdit;
if (m_textEdit)
m_textEdit->installEventFilter(this);
}
/*!
\reimp
*/
void TextEditFindWidget::deactivate()
{
// Pass focus to the text edit
if (m_textEdit)
m_textEdit->setFocus();
AbstractFindWidget::deactivate();
}
/*!
\reimp
*/
void TextEditFindWidget::find(const QString &ttf, bool skipCurrent, bool backward, bool *found, bool *wrapped)
{
if (!m_textEdit)
return;
QTextCursor cursor = m_textEdit->textCursor();
QTextDocument *doc = m_textEdit->document();
if (!doc || cursor.isNull())
return;
if (cursor.hasSelection())
cursor.setPosition((skipCurrent && !backward) ? cursor.position() : cursor.anchor());
*found = true;
QTextCursor newCursor = cursor;
if (!ttf.isEmpty()) {
QTextDocument::FindFlags options;
if (backward)
options |= QTextDocument::FindBackward;
if (caseSensitive())
options |= QTextDocument::FindCaseSensitively;
if (wholeWords())
options |= QTextDocument::FindWholeWords;
newCursor = doc->find(ttf, cursor, options);
if (newCursor.isNull()) {
QTextCursor ac(doc);
ac.movePosition(options & QTextDocument::FindBackward
? QTextCursor::End : QTextCursor::Start);
newCursor = doc->find(ttf, ac, options);
if (newCursor.isNull()) {
*found = false;
newCursor = cursor;
} else {
*wrapped = true;
}
}
}
if (!isVisible())
show();
m_textEdit->setTextCursor(newCursor);
}
QT_END_NAMESPACE
|
