source: trunk/examples/qws/simpledecoration/analogclock.cpp@ 561

Last change on this file since 561 was 561, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.1 sources.

  • Property svn:eol-style set to native
File size: 3.5 KB
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1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include <QtGui>
43
44#include "analogclock.h"
45
46AnalogClock::AnalogClock(QWidget *parent)
47 : QWidget(parent)
48{
49 QTimer *timer = new QTimer(this);
50 connect(timer, SIGNAL(timeout()), this, SLOT(update()));
51 timer->start(1000);
52
53 setWindowTitle(tr("Analog Clock"));
54 resize(200, 200);
55}
56
57void AnalogClock::paintEvent(QPaintEvent *)
58{
59 static const QPoint hourHand[3] = {
60 QPoint(7, 8),
61 QPoint(-7, 8),
62 QPoint(0, -40)
63 };
64 static const QPoint minuteHand[3] = {
65 QPoint(7, 8),
66 QPoint(-7, 8),
67 QPoint(0, -70)
68 };
69
70 QColor hourColor(127, 0, 127);
71 QColor minuteColor(0, 127, 127, 191);
72
73 int side = qMin(width(), height());
74 QTime time = QTime::currentTime();
75
76 QPainter painter(this);
77 painter.setRenderHint(QPainter::Antialiasing);
78 painter.translate(width() / 2, height() / 2);
79 painter.scale(side / 200.0, side / 200.0);
80
81 painter.setPen(Qt::NoPen);
82 painter.setBrush(hourColor);
83
84 painter.save();
85 painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0)));
86 painter.drawConvexPolygon(hourHand, 3);
87 painter.restore();
88
89 painter.setPen(hourColor);
90
91 for (int i = 0; i < 12; ++i) {
92 painter.drawLine(88, 0, 96, 0);
93 painter.rotate(30.0);
94 }
95
96 painter.setPen(Qt::NoPen);
97 painter.setBrush(minuteColor);
98
99 painter.save();
100 painter.rotate(6.0 * (time.minute() + time.second() / 60.0));
101 painter.drawConvexPolygon(minuteHand, 3);
102 painter.restore();
103
104 painter.setPen(minuteColor);
105
106 for (int j = 0; j < 60; ++j) {
107 if ((j % 5) != 0)
108 painter.drawLine(92, 0, 96, 0);
109 painter.rotate(6.0);
110 }
111}
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