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
|
/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#include "objects.h"
#include <QLayout>
#include <QPainter>
/* Implementation of QParentWidget */
//! [0]
QParentWidget::QParentWidget(QWidget *parent)
: QWidget(parent)
{
vbox = new QVBoxLayout(this);
}
//! [0] //! [1]
void QParentWidget::createSubWidget(const QString &name)
{
QSubWidget *sw = new QSubWidget(this, name);
vbox->addWidget(sw);
sw->setLabel(name);
sw->show();
}
//! [1] //! [2]
QSubWidget *QParentWidget::subWidget(const QString &name)
{
return qFindChild<QSubWidget*>(this, name);
}
//! [2]
QSize QParentWidget::sizeHint() const
{
return QWidget::sizeHint().expandedTo(QSize(100, 100));
}
/* Implementation of QSubWidget */
//! [3]
QSubWidget::QSubWidget(QWidget *parent, const QString &name)
: QWidget(parent)
{
setObjectName(name);
}
void QSubWidget::setLabel(const QString &text)
{
lbl = text;
setObjectName(text);
update();
}
QString QSubWidget::label() const
{
return lbl;
}
QSize QSubWidget::sizeHint() const
{
QFontMetrics fm(font());
return QSize(fm.width(lbl), fm.height());
}
void QSubWidget::paintEvent(QPaintEvent *)
{
QPainter painter(this);
painter.setPen(palette().text().color());
painter.drawText(rect(), Qt::AlignCenter, lbl);
//! [3] //! [4]
}
//! [4]
|