summaryrefslogtreecommitdiffstats
path: root/doc/src/snippets/code/src_qt3support_text_q3textedit.cpp
blob: e37f0f141759059f28dc3803c280ae7875f5d311 (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
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

//! [0]
QFile file(fileName); // Read the text from a file
if (file.open(IO_ReadOnly)) {
    QTextStream stream(&file);
    textEdit->setText(stream.read());
}

QFile file(fileName); // Write the text to a file
if (file.open(IO_WriteOnly)) {
    QTextStream stream(&file);
    stream << textEdit->text();
    textEdit->setModified(false);
}
//! [0]


//! [1]
This is <font color=red>red</font> while <b>this</b> is <font color=blue>blue</font>.
<font color=green><font color=yellow>Yellow,</font> and <u>green</u>.
//! [1]


//! [2]
Q3TextEdit * log = new Q3TextEdit(this);
log->setTextFormat(Qt::LogText);
Q3StyleSheetItem * item = new Q3StyleSheetItem(log->styleSheet(), "mytag");
item->setColor("red");
item->setFontWeight(QFont::Bold);
item->setFontUnderline(true);
log->append("This is a <mytag>custom tag</mytag>!");
//! [2]