kscd/ledlamp.h

   1
   2 /*
   3     This file is part of the KDE libraries
   4     Copyright (C) 1997 Richard Moore (moorer@cs.man.ac.uk)
   5
   6     This library is free software; you can redistribute it and/or
   7     modify it under the terms of the GNU Library General Public
   8     License as published by the Free Software Foundation; either
   9     version 2 of the License, or (at your option) any later version.
  10
  11     This library is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14     Library General Public License for more details.
  15
  16     You should have received a copy of the GNU Library General Public License
  17     along with this library; see the file COPYING.LIB.  If not, write to
  18     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19     Boston, MA 02110-1301, USA.
  20 */
  21
  22
  23 #ifndef LED_LAMP_H
  24 #define LED_LAMP_H
  25
  26 #include <QFrame>
  27
  28
  29 class LedLamp : public QFrame
  30 {
  31   Q_OBJECT
  32 public:
  33
  34   enum Type { Rect, Loop };
  35
  36   explicit LedLamp(QWidget *parent=0, Type t=Rect);
  37
  38   enum State { On, Off };
  39
  40
  41   State state() const { return s; }
  42
  43
  44   void setState(State state) { s= state; repaint(); }
  45
  46
  47   void toggleState() { if (s == On) s= Off; else if (s == Off) s= On; repaint(); }
  48 public slots:
  49   void toggle() { toggleState(); }
  50   void on() { setState(On); }
  51   void off() { setState(Off); }
  52 protected:
  53   void drawContents(QPainter *);
  54 private:
  55   const int w;
  56   const int h;
  57   const int dx;
  58   State s;
  59   int ledtype;
  60 };
  61
  62
  63 #endif