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/***************************************************************************
simclock.cpp - description
-------------------
begin : Mon Feb 18 2002
copyright : (C) 2002 by Mark Hollomon
email : mhh@mindspring.com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include <kdebug.h>
#include <klocale.h>
#include "simclock.h"
#include "kstars.h"
int SimClock::idgen = 1;
int SimClock::TimerInterval = 100; //msec
SimClock::SimClock(QObject *parent, const KStarsDateTime &when) :
DCOPObject("clock#" + QCString().setNum(idgen++)),
QObject(parent),
tmr(this)
{
if (! when.isValid() ) tmr.stop();
setUTC(when);
julianmark = UTC.djd();
Scale = 1.0;
ManualMode = false;
ManualActive = false;
QObject::connect(&tmr, SIGNAL(timeout()), this, SLOT(tick()));
}
SimClock::SimClock (const SimClock &old) :
DCOPObject("clock#" + QCString().setNum(idgen++)),
QObject(old.parent()),
SimClockInterface(),
tmr(this)
{
UTC = old.UTC;
julianmark = old.julianmark;
Scale = old.Scale;
ManualMode = old.ManualMode;
ManualActive = old.ManualActive;
QObject::connect(&tmr, SIGNAL(timeout()), this, SLOT(tick()));
}
void SimClock::tick() {
if ( ! ManualMode ) { //only tick if ManualMode is false
long mselapsed = sysmark.elapsed();
if (mselapsed < lastelapsed) {
// The sysmark timer has wrapped after 24 hours back to 0 ms.
// Reset sysmark and julianmark
julianmark = UTC.djd();
sysmark.start();
lastelapsed = 0;
} else {
lastelapsed = mselapsed;
}
long double scaledsec = (long double)mselapsed * (long double)Scale / 1000.0;
UTC.setDJD( julianmark + scaledsec / (24. * 3600.) );
// kdDebug() << "tick() : JD = " << KGlobal::locale()->formatNumber( UTC.djd(), 7 ) <<
// " mselapsed = " << mselapsed << " scale = " << Scale <<
// " scaledsec = " << double(scaledsec) << endl;
emit timeAdvanced();
}
}
void SimClock::setManualMode( bool on ) {
if ( on ) {
//Turn on manual ticking.
//If the timer was active, stop the timer and set ManualActive=true.
//Otherwise, set ManualActive=false.
//Finally, set ManualMode=true.
if ( tmr.isActive() ) {
tmr.stop();
ManualActive = true;
} else {
ManualActive = false;
}
ManualMode = true;
} else {
//Turn off manual ticking. If the Manual clock was active, start the timer.
//Then set ManualMode=false.
if ( isActive() ) {
sysmark.start();
julianmark = UTC.djd();
lastelapsed = 0;
tmr.start(TimerInterval);
}
ManualMode = false;
}
}
void SimClock::manualTick( bool force ) {
if ( force || (ManualMode && ManualActive) ) {
setUTC( UTC.addSecs( (long double)Scale ) );
} else if ( ! ManualMode ) tick();
}
bool SimClock::isActive() {
if ( ManualMode ) return ManualActive;
else return tmr.isActive();
}
// The SimClockInterface
void SimClock::stop() {
if ( ManualMode && ManualActive ) {
ManualActive = false;
emit clockStopped();
}
if (!ManualMode && tmr.isActive()) {
kdDebug() << i18n( "Stopping the timer" ) << endl;
tmr.stop();
emit clockStopped();
}
}
void SimClock::start() {
if ( ManualMode && !ManualActive ) {
ManualActive = true;
sysmark.start();
julianmark = UTC.djd();
lastelapsed = 0;
emit clockStarted();
//emit timeChanged() in order to restart calls to updateTime()
emit timeChanged();
}
if (! ManualMode && ! tmr.isActive()) {
kdDebug() << i18n( "Starting the timer" ) << endl;
sysmark.start();
julianmark = UTC.djd();
lastelapsed = 0;
tmr.start(TimerInterval);
emit clockStarted();
}
}
void SimClock::setUTC(const KStarsDateTime &newtime) {
if ( newtime.isValid() ) {
UTC = newtime;
if (tmr.isActive()) {
julianmark = UTC.djd();
sysmark.start();
lastelapsed = 0;
}
kdDebug() << i18n( "Setting clock: UTC: %1 JD: %2" )
.arg( UTC.toString() ).arg( KGlobal::locale()->formatNumber( UTC.djd() ) ) << endl;
emit timeChanged();
} else {
kdDebug() << i18n( "Cannot set SimClock: Invalid Date/Time." ) << endl;
}
}
void SimClock::setScale(float s) {
if (Scale != s ) {
kdDebug() << i18n( "New clock scale: %1 sec" ).arg( s ) << endl;
Scale = s;
if (tmr.isActive()) {
julianmark = UTC.djd();
sysmark.start();
lastelapsed = 0;
}
emit scaleChanged(s);
}
}
//DCOP function to set clock scale
void SimClock::setClockScale(float s) {
setScale(s);
}
#include "simclock.moc"
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