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/* This file is part of the KDE libraries Copyright (C) 1997 Richard Moore (moorer@cs.man.ac.uk) This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ // CDE style LED lamp widget for Qt // Richard J. Moore 23.11.96 // Email: moorer@cs.man.ac.uk #ifndef LED_LAMP_H #define LED_LAMP_H #include <qframe.h> /** * KLedLamp provides a CDE style LED lamp widget. * * @short A CDE-style LED lamp widget. * @author Richard J. Moore (moorer@cs.man.ac.uk) * @version $Id: kledlamp.h,v 1.4 1997/10/16 11:15:24 torben Exp $ */ class KLedLamp : public QFrame { Q_OBJECT public: /** * Construct a KLedLamp widget */ KLedLamp(QWidget *parent=0); /** * Possible states of a KLedLamp */ enum State { On, Off }; /** * Retrieve the state of the KLedLamp */ State state() const { return s; } /** * Set the state of the KLedLamp */ void setState(State state) { s= state; paintEvent(0); } /** * Toggle the state of the KLedLamp */ void toggleState() { if (s == On) s= Off; else if (s == Off) s= On; paintEvent(0); } public slots: void toggle() { toggleState(); }; void on() { setState(On); }; void off() { setState(Off); }; protected: void drawContents(QPainter *); private: const int width; const int height; const int dx; State s; }; #endif
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