/**************************************************************************** ** ** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. ** ** This file is part of Qt Jambi. ** ** ** This file may be used under the terms of the GNU General Public ** License version 2.0 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.trolltech.com/products/qt/opensource.html ** ** If you are unsure which license is appropriate for your use, please ** review the following information: ** http://www.trolltech.com/products/qt/licensing.html or contact the ** sales department at sales@trolltech.com. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ****************************************************************************/ package com.trolltech.launcher; import com.trolltech.qt.core.*; public abstract class Worker extends QObject { protected abstract void execute(); public Worker(QObject parent) { super(parent); } public void start() { if (m_is_running) stop(); m_is_running = true; m_timer_id = startTimer(m_delay); } public void stop() { killTimer(m_timer_id); m_is_running = false; } public void setDelay(int delay) { m_delay = delay; } public int delay() { return m_delay; } protected void timerEvent(QTimerEvent e) { if (e.timerId() == m_timer_id) { execute(); stop(); } } private int m_delay = 250; private int m_timer_id; private boolean m_is_running; }