fltk/FL/Fl_Timer.H

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//
// "$Id$"
//
// Timer header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2009 by Bill Spitzak and others.
//
// 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
/* \file
Fl_Timer widget . */
#ifndef Fl_Timer_H
#define Fl_Timer_H
#ifndef Fl_Widget_H
#include "Fl_Widget.H"
#endif
// values for type():
#define FL_NORMAL_TIMER 0
#define FL_VALUE_TIMER 1
#define FL_HIDDEN_TIMER 2
/**
This is provided only to emulate the Forms Timer widget. It works by
making a timeout callback every 1/5 second. This is wasteful and
inaccurate if you just want something to happen a fixed time in the
future. You should directly call
Fl::add_timeout() instead.
*/
class FL_EXPORT Fl_Timer : public Fl_Widget {
static void stepcb(void *);
void step();
char on, direction_;
double delay, total;
long lastsec,lastusec;
protected:
void draw();
public:
int handle(int);
Fl_Timer(uchar t,int x,int y,int w,int h, const char *l);
~Fl_Timer();
void value(double);
/** See void Fl_Timer::value(double) */
double value() const {return delay>0.0?delay:0.0;}
/**
Gets or sets the direction of the timer. If the direction is zero
then the timer will count up, otherwise it will count down from the
initial value().
*/
char direction() const {return direction_;}
/**
Gets or sets the direction of the timer. If the direction is zero
then the timer will count up, otherwise it will count down from the
initial value().
*/
void direction(char d) {direction_ = d;}
/** Gets or sets whether the timer is suspended. */
char suspended() const {return !on;}
void suspended(char d);
};
#endif
//
// End of "$Id$".
//