/******************************************************************************** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).** All rights reserved.** 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 <QtGui>#include "widget.h"#include "helper.h"//! [0]Widget::Widget(Helper *helper, QWidget *parent) : QWidget(parent), helper(helper){ elapsed = 0; setFixedSize(200, 200);}//! [0]//! [1]void Widget::animate(){ elapsed = (elapsed + qobject_cast<QTimer*>(sender())->interval()) % 1000; repaint();}//! [1]//! [2]void Widget::paintEvent(QPaintEvent *event){ QPainter painter; painter.begin(this); painter.setRenderHint(QPainter::Antialiasing); helper->paint(&painter, event, elapsed); painter.end();}//! [2]