source: trunk/examples/activeqt/hierarchy/objects.cpp@ 846

Last change on this file since 846 was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

File size: 3.2 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation (qt-info@nokia.com)
6**
7** This file is part of the examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:BSD$
10** You may use this file under the terms of the BSD license as follows:
11**
12** "Redistribution and use in source and binary forms, with or without
13** modification, are permitted provided that the following conditions are
14** met:
15** * Redistributions of source code must retain the above copyright
16** notice, this list of conditions and the following disclaimer.
17** * Redistributions in binary form must reproduce the above copyright
18** notice, this list of conditions and the following disclaimer in
19** the documentation and/or other materials provided with the
20** distribution.
21** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
22** the names of its contributors may be used to endorse or promote
23** products derived from this software without specific prior written
24** permission.
25**
26** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
37** $QT_END_LICENSE$
38**
39****************************************************************************/
40
41#include "objects.h"
42#include <QLayout>
43#include <QPainter>
44
45/* Implementation of QParentWidget */
46//! [0]
47QParentWidget::QParentWidget(QWidget *parent)
48: QWidget(parent)
49{
50 vbox = new QVBoxLayout(this);
51}
52
53//! [0] //! [1]
54void QParentWidget::createSubWidget(const QString &name)
55{
56 QSubWidget *sw = new QSubWidget(this, name);
57 vbox->addWidget(sw);
58 sw->setLabel(name);
59 sw->show();
60}
61
62//! [1] //! [2]
63QSubWidget *QParentWidget::subWidget(const QString &name)
64{
65 return qFindChild<QSubWidget*>(this, name);
66}
67
68//! [2]
69QSize QParentWidget::sizeHint() const
70{
71 return QWidget::sizeHint().expandedTo(QSize(100, 100));
72}
73
74/* Implementation of QSubWidget */
75//! [3]
76QSubWidget::QSubWidget(QWidget *parent, const QString &name)
77: QWidget(parent)
78{
79 setObjectName(name);
80}
81
82void QSubWidget::setLabel(const QString &text)
83{
84 lbl = text;
85 setObjectName(text);
86 update();
87}
88
89QString QSubWidget::label() const
90{
91 return lbl;
92}
93
94QSize QSubWidget::sizeHint() const
95{
96 QFontMetrics fm(font());
97 return QSize(fm.width(lbl), fm.height());
98}
99
100void QSubWidget::paintEvent(QPaintEvent *)
101{
102 QPainter painter(this);
103 painter.setPen(palette().text().color());
104 painter.drawText(rect(), Qt::AlignCenter, lbl);
105//! [3] //! [4]
106}
107//! [4]
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