chart.php

<?php
// chart.php - Outputs a chart in png format using the GD library
//
// SiT (Support Incident Tracker) - Support call tracking system
// Copyright (C) 2010-2014 The Support Incident Tracker Project
// Copyright (C) 2000-2009 Salford Software Ltd. and Contributors
//
// This software may be used and distributed according to the terms
// of the GNU General Public License, incorporated herein by reference.
//


require ('core.php');
require (APPLICATION_LIBPATH . 'functions.inc.php');
// This page requires authentication
require (APPLICATION_LIBPATH . 'auth.inc.php');

plugin_do('page_start');

if (!extension_loaded('gd')) trigger_error("{$CONFIG['application_name']} requires the gd module", E_USER_ERROR);

// External variables
$type = clean_fixed_list($_REQUEST['type'], array('pie','line','bar'));
$data = explode('|',cleanvar($_REQUEST['data']));
$legends = explode('|', cleanvar($_REQUEST['legends'], TRUE, FALSE, FALSE));
$title = urldecode(cleanvar($_REQUEST['title']));
$unit = cleanvar($_REQUEST['unit']);

function __autoload($name)
{
    $name = strtolower($name);
    $locations = array(APPLICATION_LIBPATH . "chart_{$name}.class.php",
                        APPLICATION_PLUGINPATH . $name . DIRECTORY_SEPARATOR . "chart_{$name}.class.php",
                        APPLICATION_PLUGINPATH . $name . DIRECTORY_SEPARATOR . "{$name}.class.php");
                        
    foreach ($locations AS $l)
    {
        if (file_exists($l))
        {
            require_once ($l);
            return true;
        }
    }
    
    return false;
}

debug_log("Charting library being used is {$CONFIG['default_chart']}");

$chart = new $CONFIG['default_chart'](500, 150);
$chart->setTitle($title);
$chart->setData($data);
$chart->setLegends($legends);
$chart->setUnit($unit);

switch ($type)
{
    case 'pie':
        $chart->draw_pie_chart();
        break;
    case 'line':
        $chart->draw_line_chart();
        break;
    case 'bar':
        $chart->draw_bar_chart();
       break;
    default:
        $chart->draw_error();
}

plugin_do('page_end');
?>