c++.cpp

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/*
 *  The contents of this file are subject to the Mozilla Public License
 *  Version 1.0 (the "License"); you may not use this file except in
 *  compliance with the License. You may obtain a copy of the License
 *  at http://www.mozilla.org/MPL/
 *
 *  Software distributed under the License is distributed on an "AS IS"
 *  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 *  the License for the specific language governing rights and
 *  limitations under the License.
 *
 *  The Original Code is legOS code, released October 17, 1999.
 *
 *  The Initial Developer of the Original Code is Markus L. Noga.
 *  Portions created by Markus L. Noga are Copyright (C) 1999
 *  Markus L. Noga. All Rights Reserved.
 *
 *  Contributor(s): Markus L. Noga <markus@noga.de>
 */

#include <conio.h>
#include <unistd.h>
#include <dsound.h>

class StateChanger {
public:
  virtual void setState(bool state) {
    if(state)
      enable();
    else
      disable();
  }

  virtual void enable()  = 0;
  virtual void disable() = 0;

  void onOff();
};

class DisplayState : public StateChanger {
public:
  void enable() {
    cputs("on");
  }

  void disable() {
    cls();
  }
};

#ifdef CONF_DSOUND

class SoundState : public StateChanger {
public:
  void enable() {
    dsound_system(DSOUND_BEEP);
  }

  void disable() {
  }
};
#endif // CONF_DSOUND

void StateChanger::onOff() {
  setState(1);
  sleep(1);
  setState(0);
  sleep(1);
}

int main(int argc, char **argv) {
  StateChanger *s;

  s=new DisplayState;
  s->onOff();
  delete s;

#ifdef CONF_DSOUND
  s=new SoundState;
  s->onOff();
  delete s;
#endif // CONF_DSOUND

  return 0;
}

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