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/*
* Copyright (c) 2006, Ken McDonell. All Rights Reserved.
* Copyright (c) 2006-2007, Aconex. All Rights Reserved.
*
* 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.
*
* This program 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 General Public License
* for more details.
*/
#include <QtGui/QIcon>
#include "qmc_time.h"
//
// Map icon type name to QIcon
//
extern QIcon *QmcTime::icon(QmcTime::Icon type)
{
static QIcon icons[QmcTime::IconCount];
static int setup;
if (!setup) {
setup = 1;
icons[QmcTime::ForwardOn] = QIcon(":images/play_on.png");
icons[QmcTime::ForwardOff] = QIcon(":images/play_off.png");
icons[QmcTime::StoppedOn] = QIcon(":images/stop_on.png");
icons[QmcTime::StoppedOff] = QIcon(":images/stop_off.png");
icons[QmcTime::BackwardOn] = QIcon(":images/back_on.png");
icons[QmcTime::BackwardOff] = QIcon(":images/back_off.png");
icons[QmcTime::FastForwardOn] = QIcon(":images/fastfwd_on.png");
icons[QmcTime::FastForwardOff] = QIcon(":images/fastfwd_off.png");
icons[QmcTime::FastBackwardOn] = QIcon(":images/fastback_on.png");
icons[QmcTime::FastBackwardOff] = QIcon(":images/fastback_off.png");
icons[QmcTime::StepForwardOn] = QIcon(":images/stepfwd_on.png");
icons[QmcTime::StepForwardOff] = QIcon(":images/stepfwd_off.png");
icons[QmcTime::StepBackwardOn] = QIcon(":images/stepback_on.png");
icons[QmcTime::StepBackwardOff] = QIcon(":images/stepback_off.png");
}
return &icons[type];
}
//
// Test for not-zeroed timeval
//
int QmcTime::timevalNonZero(struct timeval *a)
{
return (a->tv_sec != 0 || a->tv_usec != 0);
}
//
// a := a + b for struct timevals
//
void QmcTime::timevalAdd(struct timeval *a, struct timeval *b)
{
a->tv_usec += b->tv_usec;
if (a->tv_usec > 1000000) {
a->tv_usec -= 1000000;
a->tv_sec++;
}
a->tv_sec += b->tv_sec;
}
//
// a := a - b for struct timevals, result is never less than zero
//
void QmcTime::timevalSub(struct timeval *a, struct timeval *b)
{
a->tv_usec -= b->tv_usec;
if (a->tv_usec < 0) {
a->tv_usec += 1000000;
a->tv_sec--;
}
a->tv_sec -= b->tv_sec;
if (a->tv_sec < 0) {
/* clip negative values at zero */
a->tv_sec = 0;
a->tv_usec = 0;
}
}
//
// a : b for struct timevals ... <0 for a<b, ==0 for a==b, >0 for a>b
//
int QmcTime::timevalCompare(struct timeval *a, struct timeval *b)
{
int res = (int)(a->tv_sec - b->tv_sec);
if (res == 0)
res = (int)(a->tv_usec - b->tv_usec);
return res;
}
//
// Conversion from seconds (double precision) to struct timeval
//
void QmcTime::secondsToTimeval(double value, struct timeval *tv)
{
tv->tv_sec = (time_t)value;
tv->tv_usec = (long)(((value - (double)tv->tv_sec) * 1000000.0));
}
//
// Conversion from struct timeval to seconds (double precision)
//
double QmcTime::secondsFromTimeval(struct timeval *tv)
{
return (double)tv->tv_sec + ((double)tv->tv_usec / 1000000.0);
}
//
// Conversion from other time units into seconds
//
double QmcTime::unitsToSeconds(double value, QmcTime::DeltaUnits units)
{
if (units == QmcTime::Milliseconds)
return value / 1000.0;
else if (units == QmcTime::Minutes)
return value * 60.0;
else if (units == QmcTime::Hours)
return value * (60.0 * 60.0);
else if (units == QmcTime::Days)
return value * (60.0 * 60.0 * 24.0);
else if (units == QmcTime::Weeks)
return value * (60.0 * 60.0 * 24.0 * 7.0);
return value;
}
//
// Conversion from seconds into other time units
//
double QmcTime::secondsToUnits(double value, QmcTime::DeltaUnits units)
{
switch (units) {
case Milliseconds:
value = value * 1000.0;
break;
case Minutes:
value = value / 60.0;
break;
case Hours:
value = value / (60.0 * 60.0);
break;
case Days:
value = value / (60.0 * 60.0 * 24.0);
break;
case Weeks:
value = value / (60.0 * 60.0 * 24.0 * 7.0);
break;
case Seconds:
default:
break;
}
return value;
}
double QmcTime::deltaValue(QString delta, QmcTime::DeltaUnits units)
{
return QmcTime::secondsToUnits(delta.trimmed().toDouble(), units);
}
QString QmcTime::deltaString(double value, QmcTime::DeltaUnits units)
{
QString delta;
value = QmcTime::secondsToUnits(value, units);
if ((double)(int)value == value)
delta.sprintf("%.2f", value);
else
delta.sprintf("%.6f", value);
return delta;
}
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