better encapsulation of DateTime object

2004-07-12 06:39:13 +00:00
parent e075fdf388
commit 6130b66188
8 changed files with 149 additions and 63 deletions
@@ -0,0 +1,253 @@
+#include "global.h"
+#include "DateTime.h"
+#include "RageUtil.h"
+
+
+DateTime DateTime::GetNowDateTime()
+{
+	time_t now = time(NULL);
+    DateTime tNow;
+	localtime_r( &now, &tNow );
+	return tNow;
+}
+
+DateTime DateTime::GetNowDate()
+{
+    DateTime tNow = GetNowDateTime();
+	tNow.StripTime();
+	return tNow;
+}
+
+void DateTime::StripTime()
+{
+	tm_hour = 0;
+	tm_min = 0;
+	tm_sec = 0;
+}
+
+//
+// Common SQL/XML format: "YYYY-MM-DD HH:MM:SS"
+//
+CString DateTime::GetString() const
+{
+	return ssprintf( "%d-%02d-%02d %02d:%02d:%02d",
+		tm_year+1900,
+		tm_mon+1,
+		tm_mday,
+		tm_hour,
+		tm_min,
+		tm_sec );
+}
+
+CString DateTime::GetDateString() const
+{
+	return ssprintf( "%d-%02d-%02d",
+		tm_year+1900,
+		tm_mon+1,
+		tm_mday );
+}
+
+bool DateTime::FromString( const CString sDateTime )
+{
+	int ret;
+
+	ZERO( *this );
+
+	ret = sscanf( sDateTime, "%d-%d-%d %d:%d:%d", 
+		&tm_year,
+		&tm_mon,
+		&tm_mday,
+		&tm_hour,
+		&tm_min,
+		&tm_sec );
+	if( ret == 6 )
+		goto success;
+
+	ret = sscanf( sDateTime, "%d-%d-%d", 
+		&tm_year,
+		&tm_mon,
+		&tm_mday );
+	if( ret == 3 )
+		goto success;
+
+	return false;
+
+success:
+	tm_year -= 1900;
+	tm_mon -= 1;
+	return true;
+}
+
+
+
+CString DayInYearToString( int iDayInYear )
+{
+	return ssprintf("DayInYear%03d",iDayInYear);
+}
+
+int StringToDayInYear( CString sDayInYear )
+{
+	int iDayInYear;
+	if( sscanf( sDayInYear, "DayInYear%d", &iDayInYear ) != 1 )
+		return -1;
+	return iDayInYear;
+}
+
+static const CString LAST_DAYS_NAME[NUM_LAST_DAYS] =
+{
+	"Yesterday",
+	"2 Days Ago",
+	"3 Days Ago",
+	"4 Days Ago",
+	"5 Days Ago",
+	"6 Days Ago",
+	"7 Days Ago",
+};
+
+CString LastDayToString( int iLastDayIndex )
+{
+	return LAST_DAYS_NAME[iLastDayIndex];
+}
+
+static const CString DAY_OF_WEEK_TO_NAME[DAYS_IN_WEEK] =
+{
+	"Sunday",
+	"Monday",
+	"Tuesday",
+	"Wednesday",
+	"Thursday",
+	"Friday",
+	"Saturday",
+};
+
+CString DayOfWeekToString( int iDayOfWeekIndex )
+{
+	return DAY_OF_WEEK_TO_NAME[iDayOfWeekIndex];
+}
+
+CString HourInDayToString( int iHourInDayIndex )
+{
+	return ssprintf("%02d:00", iHourInDayIndex);
+}
+
+static const CString MONTH_TO_NAME[MONTHS_IN_YEAR] =
+{
+	"January",
+	"February",
+	"March",
+	"April",
+	"May",
+	"June",
+	"July",
+	"August",
+	"September",
+	"October",
+	"November",
+	"December",
+};
+
+CString MonthToString( int iMonthIndex )
+{
+	return MONTH_TO_NAME[iMonthIndex];
+}
+
+CString LastWeekToString( int iLastWeekIndex )
+{
+	switch( iLastWeekIndex )
+	{
+	case 0:		return "This week";	break;
+	case 1:		return "Last week";	break;
+	default:	return ssprintf("%d weeks ago",iLastWeekIndex);	break;
+	}
+}
+
+tm AddDays( tm start, int iDaysToMove )
+{
+	/*
+	 * This causes problems on OS X, which doesn't correctly handle range that are below
+	 * their normal values (eg. mday = 0).  According to the manpage, it should adjust them:
+	 *
+	 * "If structure members are outside their legal interval, they will be normalized (so
+	 * that, e.g., 40 October is changed into 9 November)."
+	 *
+	 * Instead, it appears to simply fail.
+	 *
+	 * Refs:
+	 *  http://bugs.php.net/bug.php?id=10686
+	 *  http://sourceforge.net/tracker/download.php?group_id=37892&atid=421366&file_id=79179&aid=91133
+	 *
+	 * Note "Log starting 2004-03-07 03:50:42"; mday is 7, and PrintCaloriesBurned calls us
+	 * with iDaysToMove = -7, resulting in an out-of-range value 0.  This seems legal, but
+	 * OS X chokes on it.
+	 */
+/*	start.tm_mday += iDaysToMove;
+	time_t seconds = mktime( &start );
+	ASSERT( seconds != (time_t)-1 );
+	*/
+
+	/* This handles DST differently: it returns the time that was exactly n*60*60*24 seconds
+	 * ago, where the above code always returns the same time of day.  I prefer the above
+	 * behavior, but I'm not sure that it mattersmatters. */
+	time_t seconds = mktime( &start );
+	seconds += iDaysToMove*60*60*24;
+
+	tm time;
+	localtime_r( &seconds, &time );
+	return time;
+}
+
+tm GetYesterday( tm start )
+{
+	return AddDays( start, -1 );
+}
+
+int GetDayOfWeek( tm time )
+{
+	int iDayOfWeek = time.tm_wday;
+	ASSERT( iDayOfWeek < DAYS_IN_WEEK );
+	return iDayOfWeek;
+}
+
+tm GetNextSunday( tm start )
+{
+	return AddDays( start, DAYS_IN_WEEK-GetDayOfWeek(start) );
+}
+
+
+tm GetDayInYearAndYear( int iDayInYearIndex, int iYear )
+{
+	tm when = GetLocalTime();
+
+	when.tm_mday = iDayInYearIndex;
+	when.tm_year = iYear - 1900;
+	time_t then = mktime( &when );
+
+	when = *localtime( &then );
+	return when;
+}
+
+
+/*
+ * (c) 2001-2004 Chris Danford
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, and/or sell copies of the Software, and to permit persons to
+ * whom the Software is furnished to do so, provided that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the Software and that both the above copyright notice(s) and this
+ * permission notice appear in supporting documentation.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */