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<?php
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// $Id: swfcharts.module,v 1.7 2007/10/13 18:15:45 hlslaughter Exp $
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/**
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* @file
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* Creates a wrapper around the XML/SWF Charts program. Allows an API for
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* generation of graphs and charts as well as a filter for use in a node
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* context.
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*
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* For general XML/SWF Charts info, see:
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* http://www.maani.us/xml_charts/
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*
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* For details on the XML/SWF Charts API, see:
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* http://www.maani.us/xml_charts/index.php?menu=Reference
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*
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*/
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/**
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* Implementation of hook_help().
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*/
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function swfcharts_help($section) {
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switch ($section) {
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case 'admin/help#swfcharts':
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return t('');
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break;
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case 'admin/modules#description':
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return t('API for generating attractive flash charts and graphs.');
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break;
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case 'admin/settings/swfcharts':
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return t('These are default settings for the "frame" which will be placed around the chart.');
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break;
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}
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}
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/**
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* Implementation of hook_perm().
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*/
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function swfcharts_perm() {
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return array('administer swfcharts');
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}
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/**
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* Implementation of hook_menu().
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*/
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function swfcharts_menu($may_cache) {
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$items = array();
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if ($may_cache) {
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$items[] = array(
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'path' => 'admin/settings/swfcharts',
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'title' => t('SWF Charts'),
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'description' => t('Configure default settings for SWF Charts.'),
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'callback' => 'drupal_get_form',
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'callback arguments' => array('swfcharts_admin_settings'),
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'access' => user_access('administer swfcharts'),
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'type' => MENU_NORMAL_ITEM
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);
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$items[] = array(
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'path' => 'swfcharts/generate_chart',
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'description' => t('Configure SWF Charts.'),
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'callback' => 'swfcharts_chart',
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'callback arguments' => array(),
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'access' => TRUE,
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'type' => MENU_CALLBACK
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);
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}
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return $items;
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}
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/**
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* Implementation of hook_cron().
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*/
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function swfcharts_cron() {
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// Note: if files are created in this dir by a non-apache user, they cannot
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// be removed by cron and will result in warning messages being generated
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// when cron is run. Do not put files in this dir.
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$files_dir = variable_get('swfcharts_xmldir', '');
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$files_purge = variable_get('swfcharts_files_purge', 120);
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if (!empty($files_dir) && $files_purge) {
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$d = dir($files_dir);
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while (FALSE !== ($filename = $d->read())) {
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$file = $files_dir . '/' . $filename;
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if (is_file($file)) {
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$atime = fileatime($file);
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if ( $atime < time() - (60 * $files_purge)) {
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unlink($file);
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}
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}
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}
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$d->close();
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}
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}
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/**
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* Description
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*
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* @param (array)$data
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* Contains the attributes and data of the actual chart. This will be converted
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* to XML. For a complete reference of possible values, see:
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* http://www.maani.us/charts/index.php?menu=Reference
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*
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* @param optional (array)$config
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* Named parameters for the chart wrapper. Possible values are as follows:
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*
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* $config[height] - Height of background wrapper in pixels
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* $config[width] - Width of background wrapper in pixels
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* $config[bgcolor] - Background color (eg #FFFFFF)
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* $config[quality] - Flash quality. One of: low, medium, high
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* $config[license] - XML/SWF Charts license
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*
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* @return (string)
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* A themed chart
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*/
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function swfcharts_chart($data, $config = array()) {
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global $base_url;
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$charts_rootdir = _swfcharts_charts_rootdir();
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if (!$charts_rootdir) {
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drupal_set_message("Unable to generate Chart", 'error');
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watchdog('swfcharts', t('The SWF Charts API does not appear to be installed properly. Please check the ') . l(t('SWF Charts configuration'), 'admin/settings/swfcharts'), WATCHDOG_ERROR);
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return FALSE;
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}
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$xml_filename = swfcharts_generate_xml_file($data);
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if (!$xml_filename) {
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watchdog('swfcharts', 'Unable to create XML output file, cannot generate SWF Chart.', WATCHDOG_ERROR);
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return FALSE;
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}
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$base_url = $base_url . '/';
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$charts_swf_file = $base_url . $charts_rootdir . '/charts.swf';
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$charts_library_path = $base_url . $charts_rootdir . '/charts_library';
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$height = $config['height'] ? $config['height'] :
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variable_get('swfcharts_default_height', 300);
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$width = $config['width'] ? $config['width'] :
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variable_get('swfcharts_default_width', 400);
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$bgcolor = $config['bgcolor'] ? $config['bgcolor'] :
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variable_get('swfcharts_default_background_color', '#FFFFFF');
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$quality = $config['quality'] ? $config['quality'] :
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variable_get('swfcharts_default_quality','high');
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$license = $config['license'] ? $config['license'] :
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variable_get('swfcharts_api_key', NULL);
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$chart_source_string = $charts_swf_file . '?library_path=' . $charts_library_path
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. '&xml_source=' . $xml_filename;
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if ($license != NULL) {
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$chart_source_string .= "&license=" . $license;
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}
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$output .= '
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<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"
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codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0"
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width="'. $width . '"
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height="'. $height . '"
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id="charts"
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>
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<param name=movie value="' . $chart_source_string . '">
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<param name=quality value='. $width . '>
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<param name=bgcolor value='. $bgcolor . '>
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<embed src="' . $chart_source_string . '"
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quality=' . $quality . '
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bgcolor='. $bgcolor . '
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width="'. $width . '"
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height="'. $height . '"
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name="charts"
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align=""
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swliveconnect="false"
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type="application/x-shockwave-flash"
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pluginspage="http://www.macromedia.com/go/getflashplayer">
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</embed>
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</object>
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';
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return theme('swf_chart', $output);
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}
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/**
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* Description
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*
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* @param (string)$chart
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* Contains all the HTML required for swfcharts to generate an image.
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*
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* @return (string)
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* themed chart
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*/
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function theme_swf_chart($chart) {
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//$output = '<h2>Source</h2> <pre>' . htmlentities($chart) . '<pre>';
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$output .= '<center>' . "\n" . '<div class="swf_chart">' . $chart . '</div><!-- end swf_chart--></center>' . "\n";
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return $output;
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}
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/**
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* Virtual hook 'admin_settings'
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*/
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function swfcharts_admin_settings() {
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// General
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$form['config'] = array(
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'#type' => 'fieldset',
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'#title' => t('SWF Charts configuration'),
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'#collapsible' => TRUE,
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'#description' => t('Configuration of XML/SWF Charts library')
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);
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$form['config']['swfcharts_rootdir'] = array(
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'#type' => 'textfield',
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'#size' => 64,
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'#title' => t('Path to installation directory'),
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'#description' => t('The location of the directory where !download_swfcharts
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is installed. (i.e <b>!swfcharts_rootdir</b>).',
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array (
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'!swfcharts_rootdir' => drupal_get_path('module', 'swfcharts') . '/charts',
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'!download_swfcharts' => l(t('XML/SWF Charts'),
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'http://www.maani.us/xml_charts/index.php?menu=Download'),
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)
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),
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'#default_value' => variable_get('swfcharts_rootdir', ''),
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);
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$form['config']['swfcharts_api_key'] = array(
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'#type' => 'textfield',
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'#size' => 32,
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'#title' => t('XML/SWF API Key'),
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'#description' => t('Optional API Key obtained from ') .
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l('Mannie.us', 'http://www.maani.us/') . '.',
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'#default_value' => variable_get('swfcharts_api_key', ''),
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);
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$form['general'] = array(
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'#type' => 'fieldset',
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'#title' => t('General settings'),
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'#collapsible' => TRUE,
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);
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$form['general']['swfcharts_files_purge'] = array(
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'#type' => 'textfield',
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'#size' => 8,
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'#title' => t('XML cache expire'),
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'#description' => t('The XML data used to generate charts is cached on the
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filesystem (files/swfcharts). Files which have not been accessed in this number of
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minutes will be removed. You may set this to a very large number if your
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charts are mostly based on static data or if you do not mind a lot of files
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being stored. Set to 0 to turn off, but be aware of your file system\'s
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limitations.'),
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'#default_value' => variable_get('swfcharts_files_purge', '120'),
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);
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$form['general']['swfcharts_default_height'] = array(
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'#type' => 'textfield',
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'#size' => 5,
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'#title' => t('Default height'),
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'#description' => t('Unless specified at runtime, this will be the height
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of all charts generated.'),
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'#default_value' => variable_get('swfcharts_default_height', 300),
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);
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$form['general']['swfcharts_default_width'] = array(
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'#type' => 'textfield',
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'#size' => 5,
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'#title' => t('Default width'),
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'#description' => t('Unless specified at runtime, this will be the width
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of all charts generated.'),
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'#default_value' => variable_get('swfcharts_default_width', 400),
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);
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$form['general']['swfcharts_default_background_color'] = array(
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'#type' => 'textfield',
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'#size' => 8,
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'#title' => t('Background color'),
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'#description' => t('Color used in the background that will frame the chart. For example, "#FFFFFF"'),
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'#default_value' => variable_get('swfcharts_default_background_color', '#FFFFFF'),
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);
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$form['general']['swfcharts_default_quality'] = array(
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'#type' => 'select',
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'#title' => t('SWF Quality'),
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'#description' => t('SWF default quality.'),
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'#default_value' => variable_get('swfcharts_default_quality','high'),
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'#options' => array(
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'low' => t('Low'),
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'medium' => t('Medium'),
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'high' => t('High'),
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),
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);
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return system_settings_form($form);
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}
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/**
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* Description
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*
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* @param (array)$data
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* Contains one or more rows of data that will be converted to XML
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*
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* @return (string)
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* The full (site relative) URL to the temporary file used to store the XML
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*/
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function swfcharts_generate_xml_file($data) {
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global $base_url;
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$xmldir = _swfcharts_xmldir();
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if ($xmldir) {
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// create a distinct filename corresponding to the data structure so we
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// can reuse xml files
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$xml_filename = md5(print_r($data, TRUE)) . '.xml';
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$xml_filepath = file_create_path($xmldir . '/' . $xml_filename);
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$xml_fileurl = $base_url . '/' . $xmldir . '/' . $xml_filename;
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if (file_exists($xml_filepath)) {
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return $xml_fileurl;
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}
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else {
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$xml = _array2chartsXml($data);
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if (file_save_data($xml, $xml_filepath, FILE_EXISTS_ERROR)) {
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return $xml_fileurl;
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}
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else {
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return FALSE;
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}
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}
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}
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else {
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return FALSE;
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}
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}
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/**
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* Determine whether swf charts API is installed properly, if so, return
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* path to API file
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*/
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function _swfcharts_charts_rootdir() {
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$installed = variable_get('swfcharts_api_installed', FALSE);
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$swfcharts_rootdir = variable_get('swfcharts_rootdir', '');
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// for now, our only criteria is that a file named charts.swf exists
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if (!$installed) {
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if (file_exists($swfcharts_rootdir . '/charts.swf') &&
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file_exists($swfcharts_rootdir . '/charts_library')) {
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variable_set('swfcharts_api_installed', TRUE);
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$installed = TRUE;
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}
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else {
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return FALSE;
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}
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}
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return $swfcharts_rootdir;
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}
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/**
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* Determine the location where tmp XML files will be stored, create dir
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* if not exists, report problems.
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*/
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function _swfcharts_xmldir() {
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$swfcharts_xmldir = variable_get('swfcharts_xmldir', FALSE);
|
| 349 |
if (empty($swfcharts_xmldir)) {
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$swfcharts_xmldir = file_directory_path() . '/swfcharts';
|
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$dir_created = mkdir($swfcharts_xmldir, 0777);
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if ($dir_created) {
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variable_set('swfcharts_xmldir', $swfcharts_xmldir);
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drupal_set_message(t('Created ' . $swfcharts_xmldir));
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}
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else {
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watchdog('swfcharts', 'Unable to create directory for XML files. SWF Charts will not function properly', WATCHDOG_ERROR);
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| 358 |
return FALSE;
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| 359 |
}
|
| 360 |
}
|
| 361 |
return $swfcharts_xmldir;
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}
|
| 363 |
|
| 364 |
/**
|
| 365 |
* Test the whole process
|
| 366 |
*/
|
| 367 |
function _swfcharts_test_chart() {
|
| 368 |
|
| 369 |
$chart['chart_type'] = "bar";
|
| 370 |
$chart [ 'chart_border' ] = array (
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| 371 |
'top_thickness' => 0,
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| 372 |
'bottom_thickness' => 4,
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| 373 |
'left_thickness' => 4,
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| 374 |
'right_thickness' => 4
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| 375 |
);
|
| 376 |
$chart['chart_data'] = array (
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| 377 |
array ( "", "2001", "2002", "2003", "2004" ),
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| 378 |
array ( "Region A", 5, 10, 30, 63 ),
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| 379 |
array ( "Region B", 100, 20, 65, 55 ),
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| 380 |
array ( "Region C", 56, 21, 5, 90 )
|
| 381 |
);
|
| 382 |
|
| 383 |
return swfcharts_chart($chart);
|
| 384 |
}
|
| 385 |
|
| 386 |
/**
|
| 387 |
* This code is copied directly from charts.php with one change. Instead of printing
|
| 388 |
* the XML output, we're returning it so it can be saved to a file
|
| 389 |
*/
|
| 390 |
function _array2chartsXml($chart=array()) {
|
| 391 |
|
| 392 |
$xml="<chart>\r\n";
|
| 393 |
$Keys1= array_keys((array) $chart);
|
| 394 |
for ($i1=0;$i1<count($Keys1);$i1++){
|
| 395 |
if(is_array($chart[$Keys1[$i1]])){
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| 396 |
$Keys2=array_keys($chart[$Keys1[$i1]]);
|
| 397 |
if(is_array($chart[$Keys1[$i1]][$Keys2[0]])){
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| 398 |
$xml.="\t<".$Keys1[$i1].">\r\n";
|
| 399 |
for($i2=0;$i2<count($Keys2);$i2++){
|
| 400 |
$Keys3=array_keys((array) $chart[$Keys1[$i1]][$Keys2[$i2]]);
|
| 401 |
switch($Keys1[$i1]){
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| 402 |
case "chart_data":
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$xml.="\t\t<row>\r\n";
|
| 404 |
for($i3=0;$i3<count($Keys3);$i3++){
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| 405 |
switch(true){
|
| 406 |
case ($chart[$Keys1[$i1]][$Keys2[$i2]][$Keys3[$i3]]===null):
|
| 407 |
$xml.="\t\t\t<null/>\r\n";
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break;
|
| 409 |
|
| 410 |
case ($Keys2[$i2]>0 and $Keys3[$i3]>0):
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| 411 |
$xml.="\t\t\t<number>".$chart[$Keys1[$i1]][$Keys2[$i2]][$Keys3[$i3]]."</number>\r\n";
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break;
|
| 413 |
|
| 414 |
default:
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| 415 |
$xml.="\t\t\t<string>".$chart[$Keys1[$i1]][$Keys2[$i2]][$Keys3[$i3]]."</string>\r\n";
|
| 416 |
break;
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| 417 |
}
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| 418 |
}
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| 419 |
$xml.="\t\t</row>\r\n";
|
| 420 |
break;
|
| 421 |
|
| 422 |
case "chart_value_text":
|
| 423 |
$xml.="\t\t<row>\r\n";
|
| 424 |
$count=0;
|
| 425 |
for($i3=0;$i3<count($Keys3);$i3++){
|
| 426 |
if($chart[$Keys1[$i1]][$Keys2[$i2]][$Keys3[$i3]]===null){$xml.="\t\t\t<null/>\r\n";}
|
| 427 |
else{$xml.="\t\t\t<string>".$chart[$Keys1[$i1]][$Keys2[$i2]][$Keys3[$i3]]."</string>\r\n";}
|
| 428 |
}
|
| 429 |
$xml.="\t\t</row>\r\n";
|
| 430 |
break;
|
| 431 |
|
| 432 |
/*case "link_data_text":
|
| 433 |
$xml.="\t\t<row>\r\n";
|
| 434 |
$count=0;
|
| 435 |
for($i3=0;$i3<count($Keys3);$i3++){
|
| 436 |
if($chart[$Keys1[$i1]][$Keys2[$i2]][$Keys3[$i3]]===null){$xml.="\t\t\t<null/>\r\n";}
|
| 437 |
else{$xml.="\t\t\t<string>".$chart[$Keys1[$i1]][$Keys2[$i2]][$Keys3[$i3]]."</string>\r\n";}
|
| 438 |
}
|
| 439 |
$xml.="\t\t</row>\r\n";
|
| 440 |
break;*/
|
| 441 |
|
| 442 |
case "draw":
|
| 443 |
$text="";
|
| 444 |
$xml.="\t\t<".$chart[$Keys1[$i1]][$Keys2[$i2]]['type'];
|
| 445 |
for($i3=0;$i3<count($Keys3);$i3++){
|
| 446 |
if($Keys3[$i3]!="type"){
|
| 447 |
if($Keys3[$i3]=="text"){$text=$chart[$Keys1[$i1]][$Keys2[$i2]][$Keys3[$i3]];}
|
| 448 |
else{$xml.=" ".$Keys3[$i3]."=\"".$chart[$Keys1[$i1]][$Keys2[$i2]][$Keys3[$i3]]."\"";}
|
| 449 |
}
|
| 450 |
}
|
| 451 |
if($text!=""){$xml.=">".$text."</text>\r\n";}
|
| 452 |
else{$xml.=" />\r\n";}
|
| 453 |
break;
|
| 454 |
|
| 455 |
|
| 456 |
default://link, etc.
|
| 457 |
$xml.="\t\t<value";
|
| 458 |
for($i3=0;$i3<count($Keys3);$i3++){
|
| 459 |
$xml.=" ".$Keys3[$i3]."=\"".$chart[$Keys1[$i1]][$Keys2[$i2]][$Keys3[$i3]]."\"";
|
| 460 |
}
|
| 461 |
$xml.=" />\r\n";
|
| 462 |
break;
|
| 463 |
}
|
| 464 |
}
|
| 465 |
$xml.="\t</".$Keys1[$i1].">\r\n";
|
| 466 |
}else{
|
| 467 |
if($Keys1[$i1]=="chart_type" or $Keys1[$i1]=="series_color" or $Keys1[$i1]=="series_image" or $Keys1[$i1]=="series_explode" or $Keys1[$i1]=="axis_value_text"){
|
| 468 |
$xml.="\t<".$Keys1[$i1].">\r\n";
|
| 469 |
for($i2=0;$i2<count($Keys2);$i2++){
|
| 470 |
if($chart[$Keys1[$i1]][$Keys2[$i2]]===null){$xml.="\t\t<null/>\r\n";}
|
| 471 |
else{$xml.="\t\t<value>".$chart[$Keys1[$i1]][$Keys2[$i2]]."</value>\r\n";}
|
| 472 |
}
|
| 473 |
$xml.="\t</".$Keys1[$i1].">\r\n";
|
| 474 |
}else{//axis_category, etc.
|
| 475 |
$xml.="\t<".$Keys1[$i1];
|
| 476 |
for($i2=0;$i2<count($Keys2);$i2++){
|
| 477 |
$xml.=" ".$Keys2[$i2]."=\"".$chart[$Keys1[$i1]][$Keys2[$i2]]."\"";
|
| 478 |
}
|
| 479 |
$xml.=" />\r\n";
|
| 480 |
}
|
| 481 |
}
|
| 482 |
}else{//chart type, etc.
|
| 483 |
$xml.="\t<".$Keys1[$i1].">".$chart[$Keys1[$i1]]."</".$Keys1[$i1].">\r\n";
|
| 484 |
}
|
| 485 |
}
|
| 486 |
$xml.="</chart>\r\n";
|
| 487 |
return $xml;
|
| 488 |
}
|
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