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/*
Crystal Space Windowing System: timer class
Copyright (C) 1998,1999 by Andrew Zabolotny <bit@eltech.ru>
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; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __CSTIMER_H__
#define __CSTIMER_H__
#include "cscomp.h"
/// csTimer class messages
enum
{
/**
* The TimerPulse event is generated each time timer crosses
* the bound between two periods. This command is sent to csTimer
* object owner.
* <pre>
* IN: (csTimer *)source
* </pre>
*/
cscmdTimerPulse = 0x00000300
};
/**
* Timer is a pseudo-component class which counts time and generates a
* cscmdTimerPulse command to its parent each time timer crosses
* bound between two periods. Timer period can be set either at run time
* or during object creation. This component is always invisible.
*/
class csTimer : public csComponent
{
/// Timer period in milliseconds
unsigned timeout;
/// Period start
unsigned start;
/// Pause time before counting begins
unsigned pause;
/// Timer is stopped?
bool Stopped;
public:
/// Create timer object: the timer is created in running state
csTimer (csComponent *iParent, unsigned iPeriod);
/// Handle external events and generate timeouts
virtual bool HandleEvent (iEvent &Event);
/// Stop timer
void Stop ();
/// Restart timer from period start point
void Restart ();
/// Pause for specified time
void Pause (unsigned iPause);
/// Check if timer is running
bool Running () { return !Stopped; }
};
#endif // __CSTIMER_H__
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