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//===============================================================
// vTimer.cxx - vTimer class functions - X11R5
//
// Copyright (C) 1995,1996 Bruce E. Wampler
//
// This file is part of the V C++ GUI Framework, and is covered
// under the terms of the GNU Library General Public License,
// Version 2. This library has NO WARRANTY. See the source file
// vapp.cxx for more complete information about license terms.
//===============================================================
#include <v/vapp.h>
#include <v/vtimer.h>
// Define static data of the class
//======================>>> vTimer::vTimer <<<=======================
vTimer::vTimer( ) // default constructor
{
SysDebug(Constructor,"vTimer::vTimer - constructor\n")
_id = 0; // no id
_interval = 0; // no interval
}
//======================>>> vTimer::~vTimer <<<=======================
vTimer::~vTimer( )
{
SysDebug(Destructor,"vTimer::~vTimer - destructor\n")
if (_id) // remove timer if in effect
{
XtRemoveTimeOut(_id);
_id = 0;
}
}
//======================>>> vTimer::TimerSet <<<=======================
int vTimer::TimerSet(long interval)
{
if (_id) // remove timer if in effect
{
XtRemoveTimeOut(_id);
_id = 0;
}
_interval = interval;
_id = XtAppAddTimeOut(
theApp->appContext(), // needs app context
_interval, // interval in ms
CtimerCB, // the callback
(XtPointer)this); // us
return (_id == 0) ? 0 : 1;
}
//======================>>> vTimer::TimerStop <<<=======================
void vTimer::TimerStop(void)
{
if (_id) // remove timer if in effect
{
XtRemoveTimeOut(_id);
_id = 0;
}
}
//======================>>> vTimer::TimerTick <<<=======================
void vTimer::TimerTick(void)
{
// default has no action - will be overridden
}
//=========================>>> vTimer::tick <<<=======================
void vTimer::tick(void)
{
// internal tick routine
TimerTick(); // call the work routine
// X requires you to reinstall timer to get another tick
_id = XtAppAddTimeOut(
theApp->appContext(), // needs app context
_interval, // interval in ms
CtimerCB, // the callback
(XtPointer)this); // us
}
extern "C"
{
//============================>>> CtimerCB <<<==========================
void CtimerCB(XtPointer client_data, XtIntervalId* notUsed)
{
// timer tick callback
//
// client_data will have the this pointer of our object
((vTimer*)client_data)->tick(); // call our tick routine
}
}
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