48e0c4df23
Change-Id: Ic804938fc352291d011800d21e549c10acac66fb Reviewed-by: Lars Knoll <lars.knoll@digia.com>
161 lines
4.0 KiB
C++
161 lines
4.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtGui>
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#include "rasterwindow.h"
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//! [5]
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class AnalogClockWindow : public RasterWindow
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{
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public:
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AnalogClockWindow();
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protected:
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void timerEvent(QTimerEvent *);
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void render(QPainter *p);
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private:
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int m_timerId;
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};
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//! [5]
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//! [6]
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AnalogClockWindow::AnalogClockWindow()
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{
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setTitle("Analog Clock");
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resize(200, 200);
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m_timerId = startTimer(1000);
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}
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//! [6]
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//! [7]
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void AnalogClockWindow::timerEvent(QTimerEvent *event)
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{
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if (event->timerId() == m_timerId)
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renderLater();
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}
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//! [7]
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//! [1] //! [14]
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void AnalogClockWindow::render(QPainter *p)
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{
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//! [14]
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//! [8]
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static const QPoint hourHand[3] = {
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QPoint(7, 8),
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QPoint(-7, 8),
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QPoint(0, -40)
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};
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static const QPoint minuteHand[3] = {
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QPoint(7, 8),
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QPoint(-7, 8),
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QPoint(0, -70)
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};
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QColor hourColor(127, 0, 127);
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QColor minuteColor(0, 127, 127, 191);
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//! [8]
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//! [9]
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p->setRenderHint(QPainter::Antialiasing);
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//! [9] //! [10]
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p->translate(width() / 2, height() / 2);
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int side = qMin(width(), height());
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p->scale(side / 200.0, side / 200.0);
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//! [1] //! [10]
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//! [11]
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p->setPen(Qt::NoPen);
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p->setBrush(hourColor);
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//! [11]
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//! [2]
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QTime time = QTime::currentTime();
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p->save();
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p->rotate(30.0 * ((time.hour() + time.minute() / 60.0)));
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p->drawConvexPolygon(hourHand, 3);
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p->restore();
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//! [2]
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//! [12]
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p->setPen(hourColor);
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for (int i = 0; i < 12; ++i) {
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p->drawLine(88, 0, 96, 0);
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p->rotate(30.0);
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}
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//! [12] //! [13]
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p->setPen(Qt::NoPen);
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p->setBrush(minuteColor);
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//! [13]
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//! [3]
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p->save();
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p->rotate(6.0 * (time.minute() + time.second() / 60.0));
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p->drawConvexPolygon(minuteHand, 3);
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p->restore();
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//! [3]
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//! [4]
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p->setPen(minuteColor);
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for (int j = 0; j < 60; ++j) {
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if ((j % 5) != 0)
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p->drawLine(92, 0, 96, 0);
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p->rotate(6.0);
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}
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//! [4]
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}
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int main(int argc, char **argv)
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{
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QGuiApplication app(argc, argv);
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AnalogClockWindow clock;
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clock.show();
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app.exec();
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}
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