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
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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]
|
