Mercurial > projects > qtd
view examples/widgets/analogclock/AnalogClock.d @ 408:ba1abf81d0e0
fix crash of the example upon exit
author | Eldar Insafutdinov |
---|---|
date | Fri, 18 Mar 2011 10:17:40 +0000 |
parents | 7a3c43424dca |
children |
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/**************************************************************************** ** ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Qt Software Information (qt-info@nokia.com) ** ** This file is part of the example classes of the Qt Toolkit. ** ** Commercial Usage ** Licensees holding valid Qt Commercial licenses may use this file in ** accordance with the Qt Commercial License Agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Nokia. ** ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License versions 2.0 or 3.0 as published by the Free ** Software Foundation and appearing in the file LICENSE.GPL included in ** the packaging of this file. Please review the following information ** to ensure GNU General Public Licensing requirements will be met: ** http://www.fsf.org/licensing/licenses/info/GPLv2.html and ** http://www.gnu.org/copyleft/gpl.html. In addition, as a special ** exception, Nokia gives you certain additional rights. These rights ** are described in the Nokia Qt GPL Exception version 1.3, included in ** the file GPL_EXCEPTION.txt in this package. ** ** Qt for Windows(R) Licensees ** As a special exception, Nokia, as the sole copyright holder for Qt ** Designer, grants users of the Qt/Eclipse Integration plug-in the ** right for the Qt/Eclipse Integration to link to functionality ** provided by Qt Designer and its related libraries. ** ** If you are unsure which license is appropriate for your use, please ** contact the sales department at qt-sales@nokia.com. ** ****************************************************************************/ module AnalogClock; import qt.core.QPoint; import qt.core.QTime; import qt.core.QTimer; import qt.gui.QWidget; import qt.gui.QPolygon; import qt.gui.QColor; import qt.gui.QPaintEvent; import qt.gui.QPainter; class AnalogClock : public QWidget { public: this(QWidget parent = null) { super(parent); auto timer = new QTimer(this); connect(timer, "timeout", this, "update"); timer.start(1000); setWindowTitle("Analog Clock"); resize(200, 200); } void paintEvent(QPaintEvent event) { const QPoint[3] hourHand = [ QPoint(7, 8), QPoint(-7, 8), QPoint(0, -40) ]; const QPoint[3] minuteHand = [ QPoint(7, 8), QPoint(-7, 8), QPoint(0, -70) ]; scope hourColor = new QColor(127, 0, 127); scope minuteColor = new QColor(0, 127, 127, 191); int side = qMin(width(), height()); QTime time = QTime.currentTime(); // !! it is important that QPainter object should be scoped // !! in order to be destroyed after painting scope painter = new QPainter(this); painter.setRenderHint(QPainter.Antialiasing); painter.translate(width() / 2, height() / 2); painter.scale(side / 200.0, side / 200.0); painter.setPen(Qt.NoPen); painter.setBrush(hourColor); painter.save(); painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0))); painter.drawConvexPolygon(hourHand); painter.restore(); painter.setPen(hourColor); for (int i = 0; i < 12; ++i) { painter.drawLine(88, 0, 96, 0); painter.rotate(30.0); } painter.setPen(Qt.NoPen); painter.setBrush(minuteColor); painter.save(); painter.rotate(6.0 * (time.minute() + time.second() / 60.0)); painter.drawConvexPolygon(minuteHand); painter.restore(); painter.setPen(minuteColor); for (int j = 0; j < 60; ++j) { if ((j % 5) != 0) painter.drawLine(92, 0, 96, 0); painter.rotate(6.0); } } mixin Q_OBJECT; }