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<?php
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//$Header: /hl/cvsroots/gpl01/gpl01/webprojs/fboprime/sw/phplib/stimex.inc,v 1.3 2006/09/25 20:01:28 dashley Exp $
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//********************************************************************************
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//Copyright (C)2006 David T. Ashley
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//********************************************************************************
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//This program or source file is free software; you can redistribute it and/or
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//modify it under the terms of the GNU General Public License as published by
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//the Free Software Foundation; either version 2 of the License, or (at your
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//option) any later version.
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//
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//This program or source file is distributed in the hope that it will
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//be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You may have received a copy of the GNU General Public License
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//along with this program; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//********************************************************************************
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//Dave Ashley, 08/06
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//
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//This source file contains functions that operate on STIME, but are not needed
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//by the day view scheduler.
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//
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require_once("datefunc.inc");
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require_once("stime.inc");
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//
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//--------------------------------------------------------------------------------
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//Calculates the difference between two STIMEs, and returns a string representing
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//that difference. The string returned will be either of the form (by example):
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// a)34m
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// b)4h 34m
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// c)1d 9h
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// d)44d
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//
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//The string returned is absolute value.
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//
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function STIME_diff_string_a($st0_in, $st1_in)
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{
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//We require st1 to be no sooner than st0. Reorder if necessary.
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if (strcmp($st0_in, $st1_in) > 0)
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{
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$temp = $st0_in;
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$st0_in = $st1_in;
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$st1_in = $temp;
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}
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//
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//Extract components.
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//
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sscanf(SubStr($st0_in, 2), "%04d%02d%02d%02d%02d", $year0, $month0, $day0, $hour0, $minute0);
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sscanf(SubStr($st1_in, 2), "%04d%02d%02d%02d%02d", $year1, $month1, $day1, $hour1, $minute1);
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//
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//Calculate relative offset of dates in minutes.
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//
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$dayoffset0 = 24 * 60 * (DATEFUNC_year_predecessor_sum($year0) + DATEFUNC_year_julian_offset($year0, $month0, $day0));
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$dayoffset1 = 24 * 60 * (DATEFUNC_year_predecessor_sum($year1) + DATEFUNC_year_julian_offset($year1, $month1, $day1));
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//
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//Calculate relative offset of times in minutes.
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$minuteoffset0 = $hour0 * 60 + $minute0;
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$minuteoffset1 = $hour1 * 60 + $minute1;
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$diffminutes = ($dayoffset1 + $minuteoffset1) - ($dayoffset0 + $minuteoffset0);
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//Figure out which display format to use.
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if ($diffminutes < 60)
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{
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//a
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$rv = sprintf("%dm", $diffminutes);
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}
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else if ($diffminutes < 2880)
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{
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//b
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$inthours = (int)($diffminutes/60);
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$leftoverminutes = $diffminutes - ($inthours * 60);
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$rv = sprintf("%dh %dm", $inthours, $leftoverminutes);
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}
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else if ($diffminutes < 7200)
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{
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//c
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$intdays = (int)($diffminutes/1440);
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$leftoverminutes = $diffminutes - ($intdays * 1440);
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$inthours = (int)($leftoverminutes / 60);
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$rv = sprintf("%dd %dh", $intdays, $inthours);
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}
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else
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{
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//d
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$rv = sprintf("%dd", (int)($diffminutes/1440));
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}
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return($rv);
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}
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//
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//--------------------------------------------------------------------------------
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//Returns a 2-character day-of-week representation of the date of an STIME.
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//Values are Su, Mo, Tu, We, Th, Fr, Sa.
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//
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function STIME_dow_string_a($st_in)
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{
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//Extract components.
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//
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sscanf(SubStr($st_in, 2), "%04d%02d%02d", $year, $month, $day);
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//
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//Calculate day of week.
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$dow = DATEFUNC_intdayofweek_intdate($year, $month, $day);
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//
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//Calc the string, return to caller.
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return(SubStr("SuMoTuWeThFrSa", $dow*2, 2));
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}
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//
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//--------------------------------------------------------------------------------
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//Reformats an STIME string to include dots at strategic places for more
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//human-friendly display.
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//
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function STIME_dotted_display_string_a($stime_in)
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{
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if (! is_string($stime_in))
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{
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//Don't know what this is ... it isn't an stime. Just send it back.
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return($stime_in);
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}
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else if (strlen($stime_in) != 22)
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{
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//This doesn't seem to be the right length for an stime. Give it back.
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return($stime_in);
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}
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else
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{
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//Seems right.
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return(
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SubStr($stime_in, 0, 2)
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.
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"."
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.
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SubStr($stime_in, 2, 4)
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.
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"."
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.
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SubStr($stime_in, 6, 2)
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.
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"."
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.
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SubStr($stime_in, 8, 2)
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.
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"."
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.
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SubStr($stime_in, 10, 2)
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.
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"."
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.
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SubStr($stime_in, 12, 2)
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.
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"."
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.
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SubStr($stime_in, 14, 2)
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.
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"."
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.
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SubStr($stime_in, 16, 6)
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);
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}
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}
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//
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//--------------------------------------------------------------------------------
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//End of $RCSfile: stimex.inc,v $.
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//--------------------------------------------------------------------------------
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?>
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