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/****************************************************************************
**
** Copyright (C) 2016 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#pragma once
#ifndef __QT3DS_TIME_H__
#define __QT3DS_TIME_H__
#include "Qt3DSLargeInteger.h"
namespace Q3DStudio {
const long msecsmax = 86400000; // number of milliseconds in one day
const long daysmax = 3652059; // number of days between 01/01/0001 and 12/31/9999
const TLarge datetimemax = TLarge(msecsmax) * daysmax; // max. allowed number for datetime type
const TLarge invdatetime = TLarge(-1);
class CTime
{
protected:
TLarge m_Time; // Datetime type: 64-bit, number of milliseconds since midnight 01/01/0001.
public:
// Utilities
void SetNow(bool inUseUTC = true);
long StopWatch();
long GetMilliSecs() const { return static_cast<long>(m_Time % msecsmax); }
long GetDays() const { return static_cast<long>(m_Time / msecsmax); }
long DayOfWeek() const { return (GetDays() + 1) % 7; }
void Encode(long inYear, long inMonth, long inDay, long inHour, long inMin, long inSec,
long inMSec);
void DecodeTime(long &outHour, long &outMin, long &outSec, long &inMSec);
void DecodeDate(long &outYear, long &outMonth, long &outDay);
// Construction
CTime(bool inSetNow = false)
: m_Time(0)
{
if (inSetNow)
SetNow();
}
CTime(const CTime &inTime)
: m_Time(inTime.m_Time)
{
}
// Statics
static CTime Now() { return CTime(true); }
static bool IsLeapYear(long inYear);
static long DaysInMonth(long inYear, long inMonth);
static long DaysInYear(long inYear, long inMonth);
static bool IsDateValid(long inYear, long inMonth, long inDay);
static bool IsTimeValid(long inHour, long inMin, long inSec, long inMSec = 0);
// Operators
CTime &operator=(const CTime &inTime)
{
m_Time = inTime.m_Time;
return *this;
}
CTime &operator+=(const CTime &inTime)
{
m_Time += inTime.m_Time;
return *this;
}
CTime &operator-=(const CTime &inTime)
{
m_Time -= inTime.m_Time;
return *this;
}
CTime &operator/=(const CTime &inTime)
{
m_Time /= inTime.m_Time;
return *this;
}
CTime &operator*=(const CTime &inTime)
{
m_Time *= inTime.m_Time;
return *this;
}
CTime &operator%=(const CTime &inTime)
{
m_Time %= inTime.m_Time;
return *this;
}
CTime operator+(const CTime &inTime) const
{
CTime theTime(*this);
return theTime += inTime;
}
CTime operator-(const CTime &inTime) const
{
CTime theTime(*this);
return theTime -= inTime;
}
CTime operator*(const CTime &inTime) const
{
CTime theTime(*this);
return theTime *= inTime;
}
CTime operator/(const CTime &inTime) const
{
CTime theTime(*this);
return theTime /= inTime;
}
CTime operator%(const CTime &inTime) const
{
CTime theTime(*this);
return theTime %= inTime;
}
bool operator==(const CTime &inTime) const { return m_Time == inTime.m_Time; }
bool operator!=(const CTime &inTime) const { return m_Time != inTime.m_Time; }
bool operator>(const CTime &inTime) const { return m_Time > inTime.m_Time; }
bool operator<(const CTime &inTime) const { return m_Time < inTime.m_Time; }
bool operator>=(const CTime &inTime) const { return m_Time >= inTime.m_Time; }
bool operator<=(const CTime &inTime) const { return m_Time <= inTime.m_Time; }
operator const long() const { return GetMilliSecs(); }
protected:
bool IsValid(TLarge inTime);
TLarge GetNow(bool inUseUTC = true);
TLarge Convert(long inYear, long inMonth, long inDay, long inHour, long inMin, long inSec,
long inMSec);
TLarge GetTimeZoneOffset();
};
}
#endif // __QT3DS_TIME_H__
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