vzlogger/frontend/javascript/smartmeter.js
2010-09-18 01:48:59 +02:00

83 lines
2.7 KiB
JavaScript

/*
* Copyright (c) 2010 by Florian Ziegler <fz@f10-home.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License (either version 2 or
* version 3) as published by the Free Software Foundation.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* For more information on the GPL, please go to:
* http://www.gnu.org/copyleft/gpl.html
*/
// return an array with timestamps of e.g.
// 2010-05-01 00:00:00, 2010-05-01 01:00, 2010-05-01 02:00 for grouping=hour
// between windowStart and windowEnd of json response
function getEmptyGroupArray() {
var empty_array = new Object();
var iterator = getGroupedTimestamp(myWindowStart);
//$('#debug').empty().append('start:'+myWindowStart+'end:'+myWindowEnd);
if(myWindowStart < myWindowEnd && iterator < myWindowEnd) {
var i=0;
while(iterator < myWindowEnd) {
i++;
empty_array[iterator] = 0;
var iteratorDate = new Date(iterator);
//$('#debug').append('#'+i+':'+iteratorDate+'<br>');
iteratorDate.setDate(iteratorDate.getDate()+1);
// very bad bug: infinity loop for summer winter change
if(i==750) return empty_array;
iterator = iteratorDate.getTime();
}
}
return empty_array
}
function calcMyWindowStart() {
var myWindowStart = new Date(myWindowEnd);
var year = myWindowStart.getFullYear();
var month = myWindowStart.getMonth();// 0 is january
var day = myWindowStart.getDate(); // getDay() returns day of week
var hours = myWindowStart.getHours();
var minutes = myWindowStart.getMinutes();
//var windowSize = f.window.value.substring(0,1);
var windowSize = "1";
//var windowInterval = f.window.value.substring(1);
var windowInterval = "MONTH"; // we want to display 1 day (for now)
myWindowStart.setMonth(myWindowStart.getMonth()-windowSize);
return myWindowStart.getTime();
}
// groups a timestamp depending on grouping value
// e.g. 2010-05-01 23:23:23 will become 2010-05-01 23:00:00 vor grouping=hour
function getGroupedTimestamp(timestamp) {
time = new Date(timestamp);
var year = time.getFullYear();
var month = time.getMonth();// 0 is january
var day = time.getDate(); // getDay() returns day of week
var hours = time.getHours();
var minutes = time.getMinutes();
hours = 0;
return (new Date(year,month,day,hours,minutes)).getTime();
}