<?php
/**
 * @author Mike Jolley 
 * 
 * http://blue-anvil.com/archives/8-fun-useful-shortcode-functions-for-wordpress/
 */
 
function theme_shortcode_chart( $atts ) {
	extract(shortcode_atts(array(
	    'data' => '',
	    'colors' => '',
		'size' => '400x200',
	    'bg' => 'bg,s,ffffff',
	    'title' => '',
	    'labels' => '',
	    'advanced' => '',
	    'type' => 'pie'
	), $atts));
 
	switch ($type) {
		case 'line' :
			$charttype = 'lc'; break;
		case 'xyline' :
			$charttype = 'lxy'; break;
		case 'sparkline' :
			$charttype = 'ls'; break;
		case 'meter' :
			$charttype = 'gom'; break;
		case 'scatter' :
			$charttype = 's'; break;
		case 'venn' :
			$charttype = 'v'; break;
		case 'pie' :
			$charttype = 'p3'; break;
		case 'pie2d' :
			$charttype = 'p'; break;
		default :
			$charttype = $type;
		break;
	}
 
	if ($title) $string .= '&chtt='.$title.'';
	if ($labels) $string .= '&chl='.$labels.'';
	if ($colors) $string .= '&chco='.$colors.'';
	$string .= '&chs='.$size.'';
	$string .= '&chd=t:'.$data.'';
	$string .= '&chf='.$bg.'';
 
	return wpv_get_lazy_load('http://chart.apis.google.com/chart?cht='.$charttype.''.$string.$advanced, $title);
}
add_shortcode('chart', 'theme_shortcode_chart');