16ee521a22
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5223 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
509 lines
12 KiB
C++
509 lines
12 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/datetime.inl
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// Purpose: definition of inline functions of wxDateTime and related
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// classes declared in datetime.h
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// Author: Vadim Zeitlin
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// Remarks: having the inline functions here allows us to minimize the
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// dependencies (and hence the rebuild time) in debug builds.
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// Modified by:
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// Created: 30.11.99
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// RCS-ID: $Id$
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// Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence: wxWindows license
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/////////////////////////////////////////////////////////////////////////////
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#ifndef INCLUDED_FROM_WX_DATETIME_H
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#error "This file is only included by wx/datetime.h, don't include it manually!"
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#endif
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// ----------------------------------------------------------------------------
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// private macros
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// ----------------------------------------------------------------------------
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#define MILLISECONDS_PER_DAY 86400000l
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// some broken compilers (HP-UX CC) refuse to compile the "normal" version, but
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// using a temp variable always might prevent other compilers from optimising
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// it away - hence use of this ugly macro
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#ifndef __HPUX__
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#define MODIFY_AND_RETURN(op) return wxDateTime(*this).op
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#else
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#define MODIFY_AND_RETURN(op) wxDateTime dt(*this); dt.op; return dt
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#endif
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// ----------------------------------------------------------------------------
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// wxDateTime construction
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// ----------------------------------------------------------------------------
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// only define this once, when included from datetime.cpp
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#ifdef wxDEFINE_TIME_CONSTANTS
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const long wxDateTime::TIME_T_FACTOR = 1000l;
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#endif // wxDEFINE_TIME_CONSTANTS
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bool wxDateTime::IsInStdRange() const
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{
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return m_time >= 0l && (m_time / TIME_T_FACTOR) < LONG_MAX;
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}
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/* static */
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wxDateTime wxDateTime::Now()
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{
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return wxDateTime(*GetTmNow());
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}
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/* static */
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wxDateTime wxDateTime::Today()
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{
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struct tm *tm = GetTmNow();
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tm->tm_hour =
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tm->tm_min =
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tm->tm_sec = 0;
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return wxDateTime(*tm);
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}
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#if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400))
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wxDateTime& wxDateTime::Set(time_t timet)
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{
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// assign first to avoid long multiplication overflow!
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m_time = timet;
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m_time *= TIME_T_FACTOR;
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return *this;
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}
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#endif
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wxDateTime& wxDateTime::SetToCurrent()
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{
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return *this = Now();
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}
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#if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400))
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wxDateTime::wxDateTime(time_t timet)
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{
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Set(timet);
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}
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#endif
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wxDateTime::wxDateTime(const struct tm& tm)
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{
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Set(tm);
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}
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wxDateTime::wxDateTime(const Tm& tm)
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{
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Set(tm);
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}
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wxDateTime::wxDateTime(double jdn)
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{
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Set(jdn);
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}
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wxDateTime& wxDateTime::Set(const Tm& tm)
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{
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wxASSERT_MSG( tm.IsValid(), _T("invalid broken down date/time") );
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return Set(tm.mday, (Month)tm.mon, tm.year, tm.hour, tm.min, tm.sec);
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}
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wxDateTime::wxDateTime(wxDateTime_t hour,
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wxDateTime_t minute,
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wxDateTime_t second,
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wxDateTime_t millisec)
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{
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Set(hour, minute, second, millisec);
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}
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wxDateTime::wxDateTime(wxDateTime_t day,
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Month month,
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int year,
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wxDateTime_t hour,
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wxDateTime_t minute,
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wxDateTime_t second,
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wxDateTime_t millisec)
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{
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Set(day, month, year, hour, minute, second, millisec);
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}
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// ----------------------------------------------------------------------------
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// wxDateTime accessors
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// ----------------------------------------------------------------------------
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wxLongLong wxDateTime::GetValue() const
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{
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wxASSERT_MSG( IsValid(), _T("invalid wxDateTime"));
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return m_time;
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}
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time_t wxDateTime::GetTicks() const
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{
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wxASSERT_MSG( IsValid(), _T("invalid wxDateTime"));
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if ( !IsInStdRange() )
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{
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return (time_t)-1;
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}
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return (time_t)((m_time / (long)TIME_T_FACTOR).GetLo());
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}
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bool wxDateTime::SetToLastWeekDay(WeekDay weekday,
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Month month,
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int year)
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{
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return SetToWeekDay(weekday, -1, month, year);
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}
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wxDateTime wxDateTime::GetWeekDayInSameWeek(WeekDay weekday) const
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{
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MODIFY_AND_RETURN( SetToWeekDayInSameWeek(weekday) );
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}
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wxDateTime wxDateTime::GetNextWeekDay(WeekDay weekday) const
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{
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MODIFY_AND_RETURN( SetToNextWeekDay(weekday) );
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}
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wxDateTime wxDateTime::GetPrevWeekDay(WeekDay weekday) const
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{
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MODIFY_AND_RETURN( SetToPrevWeekDay(weekday) );
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}
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wxDateTime wxDateTime::GetWeekDay(WeekDay weekday,
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int n,
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Month month,
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int year) const
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{
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wxDateTime dt(*this);
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return dt.SetToWeekDay(weekday, n, month, year) ? dt : wxInvalidDateTime;
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}
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wxDateTime wxDateTime::GetLastWeekDay(WeekDay weekday,
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Month month,
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int year)
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{
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wxDateTime dt(*this);
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return dt.SetToLastWeekDay(weekday, month, year) ? dt : wxInvalidDateTime;
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}
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wxDateTime wxDateTime::GetWeek(wxDateTime_t numWeek, WeekDay weekday) const
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{
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wxDateTime dt(*this);
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return dt.SetToTheWeek(numWeek, weekday) ? dt : wxInvalidDateTime;
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}
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wxDateTime wxDateTime::GetLastMonthDay(Month month, int year) const
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{
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MODIFY_AND_RETURN( SetToLastMonthDay(month, year) );
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}
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wxDateTime wxDateTime::GetYearDay(wxDateTime_t yday) const
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{
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MODIFY_AND_RETURN( SetToYearDay(yday) );
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}
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// ----------------------------------------------------------------------------
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// wxDateTime comparison
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// ----------------------------------------------------------------------------
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bool wxDateTime::IsEqualTo(const wxDateTime& datetime) const
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{
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wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime"));
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return m_time == datetime.m_time;
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}
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bool wxDateTime::IsEarlierThan(const wxDateTime& datetime) const
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{
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wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime"));
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return m_time < datetime.m_time;
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}
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bool wxDateTime::IsLaterThan(const wxDateTime& datetime) const
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{
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wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime"));
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return m_time > datetime.m_time;
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}
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bool wxDateTime::IsStrictlyBetween(const wxDateTime& t1,
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const wxDateTime& t2) const
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{
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// no need for assert, will be checked by the functions we call
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return IsLaterThan(t1) && IsEarlierThan(t2);
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}
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bool wxDateTime::IsBetween(const wxDateTime& t1, const wxDateTime& t2) const
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{
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// no need for assert, will be checked by the functions we call
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return IsEqualTo(t1) || IsEqualTo(t2) || IsStrictlyBetween(t1, t2);
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}
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bool wxDateTime::IsSameDate(const wxDateTime& dt) const
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{
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return (m_time - dt.m_time).Abs() < MILLISECONDS_PER_DAY;
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}
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bool wxDateTime::IsSameTime(const wxDateTime& dt) const
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{
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// notice that we can't do something like this:
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//
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// m_time % MILLISECONDS_PER_DAY == dt.m_time % MILLISECONDS_PER_DAY
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//
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// because we have also to deal with (possibly) different DST settings!
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Tm tm1 = GetTm(),
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tm2 = dt.GetTm();
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return tm1.hour == tm2.hour &&
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tm1.min == tm2.min &&
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tm1.sec == tm2.sec &&
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tm1.msec == tm2.msec;
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}
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bool wxDateTime::IsEqualUpTo(const wxDateTime& dt, const wxTimeSpan& ts) const
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{
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return IsBetween(dt.Substract(ts), dt.Add(ts));
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}
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// ----------------------------------------------------------------------------
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// wxDateTime arithmetics
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// ----------------------------------------------------------------------------
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wxDateTime wxDateTime::Add(const wxTimeSpan& diff) const
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{
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wxASSERT_MSG( IsValid(), _T("invalid wxDateTime"));
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return wxDateTime(m_time + diff.GetValue());
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}
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wxDateTime& wxDateTime::Add(const wxTimeSpan& diff)
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{
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wxASSERT_MSG( IsValid(), _T("invalid wxDateTime"));
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m_time += diff.GetValue();
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return *this;
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}
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wxDateTime& wxDateTime::operator+=(const wxTimeSpan& diff)
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{
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return Add(diff);
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}
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wxDateTime wxDateTime::Substract(const wxTimeSpan& diff) const
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{
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wxASSERT_MSG( IsValid(), _T("invalid wxDateTime"));
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return wxDateTime(m_time - diff.GetValue());
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}
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wxDateTime& wxDateTime::Substract(const wxTimeSpan& diff)
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{
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wxASSERT_MSG( IsValid(), _T("invalid wxDateTime"));
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m_time -= diff.GetValue();
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return *this;
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}
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wxDateTime& wxDateTime::operator-=(const wxTimeSpan& diff)
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{
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return Substract(diff);
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}
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wxTimeSpan wxDateTime::Substract(const wxDateTime& datetime) const
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{
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wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime"));
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return wxTimeSpan(datetime.GetValue() - GetValue());
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}
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wxDateTime wxDateTime::Add(const wxDateSpan& diff) const
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{
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return wxDateTime(*this).Add(diff);
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}
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wxDateTime& wxDateTime::Substract(const wxDateSpan& diff)
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{
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return Add(diff.Negate());
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}
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wxDateTime wxDateTime::Substract(const wxDateSpan& diff) const
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{
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return wxDateTime(*this).Substract(diff);
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}
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wxDateTime& wxDateTime::operator-=(const wxDateSpan& diff)
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{
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return Substract(diff);
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}
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wxDateTime& wxDateTime::operator+=(const wxDateSpan& diff)
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{
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return Add(diff);
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}
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// ----------------------------------------------------------------------------
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// wxDateTime and timezones
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// ----------------------------------------------------------------------------
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wxDateTime wxDateTime::ToTimezone(const wxDateTime::TimeZone& tz,
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bool noDST) const
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{
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MODIFY_AND_RETURN( MakeTimezone(tz, noDST) );
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}
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// ----------------------------------------------------------------------------
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// wxTimeSpan construction
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// ----------------------------------------------------------------------------
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wxTimeSpan::wxTimeSpan(int hours, int minutes, int seconds, int milliseconds)
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{
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// assign first to avoid precision loss
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m_diff = (long)hours;
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m_diff *= 60l;
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m_diff += minutes;
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m_diff *= 60l;
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m_diff += seconds;
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m_diff *= 1000l;
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m_diff += milliseconds;
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}
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// ----------------------------------------------------------------------------
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// wxTimeSpan accessors
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// ----------------------------------------------------------------------------
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wxLongLong wxTimeSpan::GetSeconds() const
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{
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return m_diff / 1000l;
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}
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int wxTimeSpan::GetMinutes() const
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{
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return (GetSeconds() / 60l).GetLo();
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}
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int wxTimeSpan::GetHours() const
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{
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return GetMinutes() / 60;
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}
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int wxTimeSpan::GetDays() const
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{
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return GetHours() / 24;
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}
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int wxTimeSpan::GetWeeks() const
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{
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return GetDays() / 7;
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}
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// ----------------------------------------------------------------------------
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// wxTimeSpan arithmetics
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// ----------------------------------------------------------------------------
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wxTimeSpan wxTimeSpan::Add(const wxTimeSpan& diff) const
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{
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return wxTimeSpan(m_diff + diff.GetValue());
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}
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wxTimeSpan& wxTimeSpan::Add(const wxTimeSpan& diff)
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{
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m_diff += diff.GetValue();
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return *this;
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}
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wxTimeSpan wxTimeSpan::Substract(const wxTimeSpan& diff) const
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{
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return wxTimeSpan(m_diff - diff.GetValue());
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}
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wxTimeSpan& wxTimeSpan::Substract(const wxTimeSpan& diff)
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{
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m_diff -= diff.GetValue();
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return *this;
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}
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wxTimeSpan& wxTimeSpan::Multiply(int n)
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{
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m_diff *= (long)n;
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return *this;
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}
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wxTimeSpan wxTimeSpan::Multiply(int n) const
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{
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return wxTimeSpan(m_diff * (long)n);
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}
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wxTimeSpan wxTimeSpan::Abs() const
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{
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return wxTimeSpan(GetValue().Abs());
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}
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bool wxTimeSpan::IsEqualTo(const wxTimeSpan& ts) const
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{
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return GetValue() == ts.GetValue();
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}
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bool wxTimeSpan::IsLongerThan(const wxTimeSpan& ts) const
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{
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return GetValue().Abs() > ts.GetValue().Abs();
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}
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// ----------------------------------------------------------------------------
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// wxDateSpan
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// ----------------------------------------------------------------------------
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wxDateSpan&
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wxDateSpan::operator+=(const wxDateSpan& other)
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{
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m_years += other.m_years;
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m_months += other.m_months;
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m_weeks += other.m_weeks;
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m_days += other.m_days;
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return *this;
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}
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wxDateSpan& wxDateSpan::Multiply(int factor)
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{
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m_years *= factor;
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m_months *= factor;
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m_weeks *= factor;
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m_days *= factor;
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return *this;
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}
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wxDateSpan wxDateSpan::Multiply(int factor) const
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{
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return wxDateSpan(*this).Multiply(factor);
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}
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wxDateSpan wxDateSpan::Negate() const
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{
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return wxDateSpan(-m_years, -m_months, -m_weeks, -m_days);
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}
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wxDateSpan& wxDateSpan::Neg()
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{
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m_years = -m_years;
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m_months = -m_months;
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m_weeks = -m_weeks;
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m_days = -m_days;
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return *this;
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}
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#undef MILLISECONDS_PER_DAY
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#undef MODIFY_AND_RETURN
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