SSL, Google Chart updates, lnAPP improvements
This commit is contained in:
Deon George
176
modules/gchart/classes/GoogleChart.php
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176
modules/gchart/classes/GoogleChart.php
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@@ -0,0 +1,176 @@
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<?php defined('SYSPATH') or die('No direct access allowed.');
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/**
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* This class provides access to Google's Chart API
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*
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* @package lnApp
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* @subpackage GoogleChart
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* @category Helper
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* @author Deon George
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* @copyright (c) 2010 Deon George
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* @license http://dev.leenooks.net/license.html
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*/
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abstract class GoogleChart implements Iterator,Countable {
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// Hold the data for our chart
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protected $_data = array();
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protected $_axis = array();
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private $_plotdata = array();
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protected $_max = array();
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// Chart title
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protected $_title = '';
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// Default chart size.
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protected $_size = '700x200';
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// Colors to use for series
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private $series_colors = array('AAACCC','E0E0E0','CCC888','EEEBBB','666CCC','888888');
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// Implementation Methods
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public function count() {
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return count($this->_plotdata);
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}
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public function current() {
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return current($this->_plotdata);
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}
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public function key() {
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return key($this->_plotdata);
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}
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public function next() {
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return next($this->_plotdata);
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}
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public function rewind() {
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reset($this->_plotdata);
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}
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public function valid() {
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return key($this->_plotdata) ? TRUE : FALSE;
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}
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public function __call($name,$args) {
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switch ($name) {
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case 'title': $this->_title = array_shift($args);
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break;
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default:
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throw new Kohana_Exception('Unknown method :name',array(':name'=>$name));
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}
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return $this;
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}
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/**
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* Render the URL that generates the graph
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*/
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final public function __toString() {
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try {
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return (string)$this->render();
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} catch (Exception $e) {
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echo Debug::vars($e);
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}
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}
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/**
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* Pick the driver that will render the graph
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* @param $class The child class to invoke
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*/
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final public static function factory($class) {
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$c = sprintf('%s_%s',get_called_class(),$class);
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if (! class_exists($c))
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throw new Kohana_Exception('Unknown Google Chart Type :class',array(':class'=>$class));
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else
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return new $c();
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}
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// Our child class should define how to render as a string
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abstract public function render();
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/**
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* Record one series of data
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* @param $axis Axis used and legend title, eg: (yr->"Right Y",yl->"Left Y")
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* @param $data Data for Axis in the format ("x label"=>value);
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*
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* Example:
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* $this->data('yl'=>'Base Down Peak',array('11-12'=>1,'11-11'=>2));
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*/
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public function data(array $axis,array $data) {
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// Some sanity checking
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if (count($axis) != 1)
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throw new Kohana_Exception('We can only take 1 series at time.');
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// This should only iterate once
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foreach ($axis as $key => $l) {
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if (! in_array($key,array('yr','yl')))
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throw new Kohaan_Exception('Unknown AXIS :axis',array(':axis'=>$key));
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$this->_axis[$l] = $key;
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$this->_data[$l] = $data[$l];
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// Upate our plot data
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foreach ($data[$l] as $k=>$v)
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$this->_plotdata[$k][$l] = $v;
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ksort($this->_plotdata);
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$this->_max[$l] = max($data[$l]);
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}
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return $this;
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}
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/**
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* Return the colors that will be used for this series
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*/
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protected function seriescolors() {
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return array_slice($this->series_colors,0,count($this->_axis));
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}
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/**
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* Render the chart data in a table format
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*/
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public function table($vertical=TRUE,$class=array()) {
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if (! $this->_data)
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return sprintf('<table><tr><td>%s</td></tr></table>',_('No Data'));
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$output = sprintf('<table %s>',
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isset($class['table']) ? $class['table'] : 'class="google-data-table"');
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if ($vertical) {
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$output .= '<tr>';
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$output .= '<td> </td>';
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foreach ($this->_axis as $l => $axis)
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$output .= sprintf('<th style="text-align: right;">%s</th>',$l);
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$output .= '</tr>';
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foreach ($this as $k => $details) {
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$output .= '<tr>';
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$output .= sprintf('<th style="text-align: right;">%s</th>',$k);
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foreach ($this->_axis as $l => $axis)
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$output .= sprintf('<td style="text-align: right;">%s</td>',$details[$l]);
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$output .= '</tr>';
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}
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// Horizontal table
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} else {
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$output .= '<tr>';
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$output .= '<td> </td>';
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foreach ($this as $k => $details)
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$output .= sprintf('<th style="text-align: right;">%s</th>',$k);
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$output .= '</tr>';
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foreach ($this->_axis as $l => $axis) {
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$output .= '<tr>';
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$output .= sprintf('<th style="text-align: right;">%s</th>',$l);
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foreach ($this as $k => $v)
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$output .= sprintf('<td style="text-align: right;">%s</td>',$v[$l]);
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$output .= '</tr>';
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}
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}
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$output .= '</table>';
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return $output;
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}
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}
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?>
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219
modules/gchart/classes/GoogleChart/Legacy.php
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219
modules/gchart/classes/GoogleChart/Legacy.php
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@@ -0,0 +1,219 @@
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<?php defined('SYSPATH') or die('No direct access allowed.');
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/**
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* This class provides access to Google's Chart Legacy API
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*
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* @package lnApp
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* @subpackage GoogleChart
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* @category Helper
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* @author Deon George
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* @copyright (c) 2010 Deon George
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* @license http://dev.leenooks.net/license.html
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*/
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class GoogleChart_Legacy extends GoogleChart {
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// Chart URL
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private $_url = 'http://chart.apis.google.com/chart';
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// The type of chart we'll plot
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private $_type = 'bvs';
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// Data encoding type to use
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private $_encodetype = 's';
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// Chart Types
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private $cht = array(
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// Line
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// 'line' => 'lc',
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// 'sparkline' => 'ls',
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// 'line_xy' => 'lxy',
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// Bar
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// 'horizontal_bar' => 'bhs',
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'vertical_bar' => 'bvs',
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// 'horizontal_bar_grp' => 'bhg',
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// 'vertical_bar_grp' => 'bvg',
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// Pie
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// 'pie' => 'p',
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// 'pie_3d' => 'p3',
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// 'pie_concentric' => 'pc',
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// Venn
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// 'venn' => 'v',
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// Scatter
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// 'scatter' => 's',
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// Radar
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// 'radar' => 'r',
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// 'radar_fill' => 'rs',
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// Maps
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// 'map' => 't',
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// Google-o-meter
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// 'google_o_meter' => 'gom',
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// QR
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// 'qr' => 'qr',
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);
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/**
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* Set the type of the chart
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* @param $type Chart type as per $this->cht
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*/
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public function type($type) {
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if (empty($this->cht[$type]))
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throw new Kohana_Exception('Unknown chart type :type for :class',array(':type'=>$type,':class'=>get_class($this)));
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$this->_type = $this->cht[$type];
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return $this;
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}
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/**
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* Count how many metrics are being graphed per side
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* @param $side Side YL (left) OR YR (right)
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*/
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private function axiscount($side) {
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$i = 0;
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foreach ($this->_axis as $l => $axis)
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if ($axis == $side)
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$i++;
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return $i;
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}
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/**
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* Calculate our maximum for each side of the chart
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*/
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private function maxes() {
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$return = array();
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foreach ($this->_axis as $l => $axis) {
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if (! isset($return[$axis]))
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$return[$axis] = 0;
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$return[$axis] += $this->_max[$l]*1.1; // @todo This scaleup should be configurable
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}
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return $return;
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}
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/** CHART FIELDS **/
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private function chd() {
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$return = array();
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$maxes = $this->maxes();
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// Perform our encoding
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foreach ($this->_axis as $l => $axis)
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array_push($return,$this->encode($this->_data[$l],$maxes[$axis]));
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$prefix = (count($maxes) > 1) ? sprintf('%s:',$this->axiscount('yl')) : ':';
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// If encoding is text, we need to separate the series with a |
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return ($this->_encodetype == 't') ? $prefix.implode('|',$return) : $prefix.implode(',',$return);
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}
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private function chm() {
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$return = array();
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$sc = $this->seriescolors();
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$i = 0;
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foreach ($this->_axis as $l => $axis) {
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if ($axis == 'yr')
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array_push($return,sprintf('%s,%s,%s,%s,%s,%s','D',$sc[$i],$i,0,2,2));// @todo 'D,0,2,2' May need to be configurable
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$i++;
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}
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return count($return) ? implode('|',$return) : '';
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}
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private function chxl() {
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$return = array();
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// @todo This should be performed better - it may be a wrong assumption that all keys in the series have data.
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foreach ($this->_data as $series => $data)
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// @todo Why the 0:?
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return '0:|'.implode('|',array_keys($data));
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}
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private function chxr() {
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$return = array();
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$i = 1;
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foreach ($this->maxes() as $key => $value)
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array_push($return,sprintf('%s,0,%s,0',$i++,$value));
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return implode('|',$return);
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}
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/**
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* Return URL that renders the chart
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*/
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public function render() {
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return sprintf('<img src="%s?%s" alt="%s">',$this->_url,http_build_query($this->build()),_('Google Chart'));
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}
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/**
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* Build the chart
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*/
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private function build() {
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if ($this->_data ) {
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return array(
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'chf'=>'bg,s,FFFFFF00',
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'cht'=>$this->_type,
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'chs'=>$this->_size,
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'chtt'=>$this->_title,
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'chbh'=>'a', // @todo This might need to be calculated, valid options (a,r);
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'chg'=>'7.7,12.5,1,5', // @todo This should be calculated
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'chco'=>implode(',',$this->seriescolors()),
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'chdl'=>implode('|',array_keys($this->_axis)),
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'chd'=>$this->_encodetype.$this->chd(),
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'chm'=>$this->chm(),
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'chxt'=>'x,y,r', // @todo configurable?
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'chxl'=>$this->chxl(),
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'chxr'=>$this->chxr(),
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);
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} else
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return array();
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}
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/**
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* Encode the series data
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* @param $data String of data to encode
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* @param $max The maximum to scale to
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*/
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private function encode($data,$max=NULL) {
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$table = array();
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$table['simple'] = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
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$table['extend'] = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-.';
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$size = array();
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$size['simple'] = strlen($table['simple']);
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$size['extend'] = strlen($table['extend']);
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if (is_null($max) OR $max == 0)
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$max = max($data) > 0 ? max($data) : 1;
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$encode = '';
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switch ($this->_encodetype) {
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case 't' :
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return join(',',$data);
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case 's' :
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foreach ($data as $v)
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$encode .= ($v > -1) ? substr($table['simple'],($size['simple']-1)*($v/$max),1) : '_';
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break;
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case 'e' :
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foreach ($data as $v) {
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# Convert to a 0-4095 data range
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$y = 4095*$v/$max;
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$first = substr($table['extend'],floor($y/$size['extend']),1);
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$second = substr($table['extend'],$y%$size['extend'],1);
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$encode .= "$first$second";
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}
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break;
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}
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return $encode;
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||||
}
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||||
}
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||||
?>
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@@ -1,423 +0,0 @@
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<?php defined('SYSPATH') or die('No direct access allowed.');
|
||||
|
||||
/**
|
||||
* This class provides access to Google's Chart API
|
||||
*
|
||||
* @package lnApp
|
||||
* @subpackage GoogleChart
|
||||
* @category Helper
|
||||
* @author Deon George
|
||||
* @copyright (c) 2010 Open Source Billing
|
||||
* @license http://dev.osbill.net/license.html
|
||||
*/
|
||||
class GoogleChart implements Iterator,Countable {
|
||||
// Chart URL
|
||||
private $url = 'http://chart.apis.google.com/chart';
|
||||
// Hold our plot data
|
||||
private $plotdata = array();
|
||||
private $chartdata = array();
|
||||
// Number of Series to plot
|
||||
private $numseries = 0;
|
||||
// The type of chart we'll plot
|
||||
private $chart_type = '';
|
||||
// Default chart tytle.
|
||||
private $chart_title = '';
|
||||
// Default chart size.
|
||||
private $chart_size = '700x200';
|
||||
// Colors to use for series
|
||||
private $series_colors = array('AAACCC','E0E0E0','CCC888','EEEBBB','666CCC','888888');
|
||||
// Data encoding type to use
|
||||
private $data_encode = 's';
|
||||
private $div_mode = FALSE;
|
||||
|
||||
// Implementation Methods
|
||||
public function rewind() {
|
||||
reset($this->plotdata);
|
||||
}
|
||||
public function current() {
|
||||
return current($this->plotdata);
|
||||
}
|
||||
public function key() {
|
||||
return key($this->plotdata);
|
||||
}
|
||||
public function next() {
|
||||
return next($this->plotdata);
|
||||
}
|
||||
public function valid() {
|
||||
return key($this->plotdata) ? TRUE : FALSE;
|
||||
}
|
||||
public function count() {
|
||||
return count($this->plotdata);
|
||||
}
|
||||
|
||||
// Chart Types
|
||||
private $cht = array(
|
||||
// Line
|
||||
// 'line' => 'lc',
|
||||
// 'sparkline' => 'ls',
|
||||
// 'line_xy' => 'lxy',
|
||||
// Bar
|
||||
// 'horizontal_bar' => 'bhs',
|
||||
'vertical_bar' => 'bvs',
|
||||
// 'horizontal_bar_grp' => 'bhg',
|
||||
// 'vertical_bar_grp' => 'bvg',
|
||||
// Pie
|
||||
// 'pie' => 'p',
|
||||
// 'pie_3d' => 'p3',
|
||||
// 'pie_concentric' => 'pc',
|
||||
// Venn
|
||||
// 'venn' => 'v',
|
||||
// Scatter
|
||||
// 'scatter' => 's',
|
||||
// Radar
|
||||
// 'radar' => 'r',
|
||||
// 'radar_fill' => 'rs',
|
||||
// Maps
|
||||
// 'map' => 't',
|
||||
// Google-o-meter
|
||||
// 'google_o_meter' => 'gom',
|
||||
// QR
|
||||
// 'qr' => 'qr',
|
||||
);
|
||||
|
||||
public function __construct($type) {
|
||||
if (empty($this->cht[$type]))
|
||||
throw new Kohana_Exception('Unknown chart type :type for :class',array(':type'=>$type,':class'=>get_class($this)));
|
||||
|
||||
$this->chart_type = $this->cht[$type];
|
||||
}
|
||||
|
||||
public function __set($key,$value) {
|
||||
switch ($key) {
|
||||
case 'div':
|
||||
$this->div_mode = $value;
|
||||
break;
|
||||
|
||||
case 'encode':
|
||||
// Encoding options are t=none,s=simple,e=extend
|
||||
if (! in_array($value,array('t','s','e')))
|
||||
throw new Kohana_Exception('Unknown encoding type :type',array(':type'=>$value));
|
||||
|
||||
$this->data_encode = $value;
|
||||
break;
|
||||
|
||||
case 'title':
|
||||
$this->chart_title = $value;
|
||||
break;
|
||||
|
||||
default:
|
||||
throw new Kohana_Exception('Unknown variable :key (:value) for :class',array(':key'=>$key,':value'=>$value,':class'=>get_class($this)));
|
||||
}
|
||||
}
|
||||
|
||||
public function __toString() {
|
||||
try {
|
||||
return $this->render();
|
||||
}
|
||||
catch (Exception $e) {
|
||||
echo Debug::vars($e);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Return an instance of this class
|
||||
*
|
||||
* @return GoogleChart
|
||||
*/
|
||||
public static function factory($type) {
|
||||
return new GoogleChart($type);
|
||||
}
|
||||
|
||||
public function series($data) {
|
||||
// Quick Sanity check that we have the right indexes
|
||||
foreach (array('data','axis') as $k)
|
||||
if (! isset($data[$k]))
|
||||
throw new Kohana_Exception('Missing key :key',array(':key'=>$k));
|
||||
|
||||
// Quick check that we have the right types
|
||||
if (! in_array($data['axis'],array('x','r')))
|
||||
throw new Kohana_Exception('Unknown data type :type',array(':type'=>$data['axis']));
|
||||
|
||||
if (is_array($data['data'])) {
|
||||
foreach ($data['data'] as $title => $values) {
|
||||
$this->numseries++;
|
||||
|
||||
$this->chartdata['legend'][$this->numseries] = $title;
|
||||
$this->chartdata['axis'][$data['axis']][] = $this->numseries;
|
||||
|
||||
if (is_array($values))
|
||||
foreach ($values as $k => $v)
|
||||
$this->plotdata[$k][$data['axis']][$this->numseries] = $v;
|
||||
else
|
||||
throw new Kohana_Exception('Series data needs to be an array');
|
||||
}
|
||||
|
||||
} else {
|
||||
throw new Kohana_Exception('Series data needs to be an array');
|
||||
}
|
||||
}
|
||||
|
||||
private function seriescolors() {
|
||||
$return = array();
|
||||
|
||||
$i = 0;
|
||||
for ($j=0;$j<$this->numseries;$j++) {
|
||||
array_push($return,$this->series_colors[$i++]);
|
||||
|
||||
// Reset $i if we exceed our available colors
|
||||
if ($i > count($this->series_colors))
|
||||
$i = 0;
|
||||
}
|
||||
|
||||
return $return;
|
||||
}
|
||||
|
||||
public function series_colors() {
|
||||
return implode(',',$this->seriescolors());
|
||||
}
|
||||
|
||||
public function series_chm() {
|
||||
if (! isset($this->chartdata['axis']['r']))
|
||||
return '';
|
||||
|
||||
$return = array();
|
||||
$c = $this->seriescolors();
|
||||
foreach ($this->chartdata['axis']['r'] as $v)
|
||||
array_push($return,sprintf('%s,%s,%s,%s,%s,%s','D',$c[$v-1],$v-1,0,2,2));// @todo 'D,0,2,2' May need to be configurable
|
||||
|
||||
return implode('|',$return);
|
||||
}
|
||||
|
||||
public function series_x_labels() {
|
||||
// @todo Why the 0:?
|
||||
return '0:|'.implode('|',array_keys($this->plotdata));
|
||||
}
|
||||
|
||||
public function series_scaling() {
|
||||
$return = array();
|
||||
|
||||
foreach ($this->chartdata['max'] as $k => $v)
|
||||
array_push($return,sprintf('%s,%s',empty($this->chartdata['min']) ? 0 : $this->chartdata['min'],$v));
|
||||
|
||||
return implode(',',$return);
|
||||
}
|
||||
|
||||
public function series_scale() {
|
||||
$return = array();
|
||||
|
||||
$i = 1;
|
||||
// @todo need to add min values
|
||||
foreach ($this->chartdata['max'] as $k => $v)
|
||||
array_push($return,sprintf('%s,0,%s,0',$i++,$v));
|
||||
|
||||
return implode('|',$return);
|
||||
}
|
||||
|
||||
public function series_legend() {
|
||||
return implode('|',$this->chartdata['legend']);
|
||||
}
|
||||
|
||||
public function series_data() {
|
||||
$return = $sreturn = $invs = array();
|
||||
|
||||
$sd = $max = array();
|
||||
foreach ($this->plotdata as $label => $seriesdata)
|
||||
foreach ($seriesdata as $type => $data) {
|
||||
foreach ($data as $key => $value) {
|
||||
$sd[$key][$label] = $value;
|
||||
$max[$key] = $this->chartdata['max'][$type];
|
||||
$invs[$type][$key] = TRUE;
|
||||
}
|
||||
}
|
||||
|
||||
foreach ($sd as $k => $v)
|
||||
array_push($sreturn,$this->encode($v,$max[$k]));
|
||||
|
||||
// @todo This might need some more work, when used with different graph types.
|
||||
if (count($invs) > 1)
|
||||
$prefix = sprintf('%s:',count($invs['x']));
|
||||
else
|
||||
$prefix = ':';
|
||||
|
||||
// If encoding is text, we need to separate the series with a |
|
||||
if ($this->data_encode == 't')
|
||||
return $prefix.implode('|',$sreturn);
|
||||
else
|
||||
return $prefix.implode(',',$sreturn);
|
||||
}
|
||||
|
||||
private function render() {
|
||||
$output = '';
|
||||
|
||||
// Testing
|
||||
if ($this->div_mode) {
|
||||
$output .= '<div id="GoogleChart">GoogleChart</div>';
|
||||
$output .= '<div id="showgc" style="display: inline;">';
|
||||
}
|
||||
|
||||
// Render
|
||||
$output .= sprintf('<img src="%s?%s" alt="%s">',$this->url,http_build_query($this->build()),_('Traffic Summary'));
|
||||
// $output .= Debug::vars($this->build());
|
||||
// $output .= Debug::vars($this->chartdata);
|
||||
// $output .= Debug::vars($this->plotdata);
|
||||
|
||||
// Toggle the display of the chart.
|
||||
// @todo This JS should be placed elsewhere for HTML validation
|
||||
if ($this->div_mode) {
|
||||
$output .= '</div>';
|
||||
$output .= '<script type="text/javascript">$("#GoogleChart").click(function() {$(\'#showgc\').toggle();});</script>';
|
||||
}
|
||||
|
||||
return $output;
|
||||
}
|
||||
|
||||
public function html_table($vertical=TRUE,$class=array()) {
|
||||
if (! count($this))
|
||||
return sprintf('<table><tr><td>%s</td></tr></table>',_('No Data'));
|
||||
|
||||
$output = sprintf('<table %s>',
|
||||
isset($class['table']) ? $class['table'] : 'class="google-data-table"');
|
||||
|
||||
if ($vertical) {
|
||||
$output .= '<tr>';
|
||||
$output .= '<td> </td>';
|
||||
foreach ($this->chartdata['axis'] as $axis => $adetails)
|
||||
foreach ($adetails as $k)
|
||||
$output .= sprintf('<th style="text-align: right;">%s</th>',$this->chartdata['legend'][$k]);
|
||||
$output .= '</tr>';
|
||||
|
||||
foreach ($this as $k => $v) {
|
||||
$output .= '<tr>';
|
||||
$output .= sprintf('<th style="text-align: right;">%s</th>',$k);
|
||||
foreach ($this->chartdata['axis'] as $axis => $adetails)
|
||||
foreach ($adetails as $k)
|
||||
$output .= sprintf('<td style="text-align: right;">%s</td>',$v[$axis][$k]);
|
||||
$output .= '</tr>';
|
||||
}
|
||||
|
||||
// Horizontal table
|
||||
} else {
|
||||
$output .= '<tr>';
|
||||
$output .= '<td> </td>';
|
||||
foreach ($this as $k => $v)
|
||||
$output .= sprintf('<th style="text-align: right;">%s</th>',$k);
|
||||
$output .= '</tr>';
|
||||
|
||||
foreach ($this->chartdata['axis'] as $axis => $adetails)
|
||||
foreach ($adetails as $id) {
|
||||
$output .= '<tr>';
|
||||
|
||||
$output .= sprintf('<th style="text-align: right;">%s</th>',$this->chartdata['legend'][$id]);
|
||||
|
||||
foreach ($this as $k => $v)
|
||||
$output .= sprintf('<td style="text-align: right;">%s</td>',$v[$axis][$id]);
|
||||
|
||||
$output .= '</tr>';
|
||||
}
|
||||
}
|
||||
|
||||
$output .= '</table>';
|
||||
|
||||
return $output;
|
||||
}
|
||||
|
||||
/**
|
||||
* Some pre-render processing
|
||||
*/
|
||||
private function process() {
|
||||
$max = array();
|
||||
|
||||
// Work out our maximum number for each series.
|
||||
foreach ($this->plotdata as $label => $seriesdata) {
|
||||
|
||||
foreach ($seriesdata as $type => $data) {
|
||||
$c = 0;
|
||||
foreach ($data as $value)
|
||||
$c += $value;
|
||||
|
||||
// Scale up our max, so we get some extra space at the top of our chart.
|
||||
// @todo This should be configurable.
|
||||
$c *= 1.1;
|
||||
|
||||
if (! isset($this->chartdata['max'][$type]))
|
||||
$this->chartdata['max'][$type] = $c;
|
||||
else
|
||||
$this->chartdata['max'][$type] = ($c > $this->chartdata['max'][$type]) ? $c : $this->chartdata['max'][$type];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Build the chart
|
||||
*/
|
||||
private function build() {
|
||||
if ($this->plotdata) {
|
||||
$this->process();
|
||||
|
||||
return array(
|
||||
'chf'=>'bg,s,FFFFFF00',
|
||||
'cht'=>$this->chart_type,
|
||||
'chs'=>$this->chart_size,
|
||||
'chtt'=>$this->chart_title,
|
||||
'chbh'=>'a', // @todo This might need to be calculated, valid options (a,r);
|
||||
'chg'=>'7.7,12.5,1,5', // @todo This should be calculated
|
||||
'chco'=>$this->series_colors(),
|
||||
'chdl'=>$this->series_legend(),
|
||||
'chd'=>$this->data_encode.$this->series_data(),
|
||||
// 'chds'=>$this->series_scaling(),
|
||||
'chm'=>$this->series_chm(),
|
||||
'chxt'=>'x,y,r', // @todo configurable?
|
||||
'chxl'=>$this->series_x_labels(),
|
||||
'chxr'=>$this->series_scale(),
|
||||
);
|
||||
|
||||
} else
|
||||
return array();
|
||||
}
|
||||
|
||||
/**
|
||||
* Encode the series data
|
||||
*/
|
||||
private function encode($data,$max=NULL) {
|
||||
$table = array();
|
||||
$table['simple'] = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
|
||||
$table['extend'] = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-.';
|
||||
|
||||
$size = array();
|
||||
$size['simple'] = strlen($table['simple']);
|
||||
$size['extend'] = strlen($table['extend']);
|
||||
|
||||
if (is_null($max) OR $max == 0)
|
||||
$max = max($data) > 0 ? max($data) : 1;
|
||||
|
||||
$encode = '';
|
||||
|
||||
switch ($this->data_encode) {
|
||||
case 't' :
|
||||
return join(',',$data);
|
||||
|
||||
case 's' :
|
||||
foreach ($data as $v)
|
||||
if ($v > -1)
|
||||
$encode .= substr($table['simple'],($size['simple']-1)*($v/$max),1);
|
||||
else
|
||||
$encode .= '_';
|
||||
|
||||
break;
|
||||
|
||||
case 'e' :
|
||||
foreach ($data as $v) {
|
||||
# Convert to a 0-4095 data range
|
||||
$y = 4095*$v/$max;
|
||||
$first = substr($table['extend'],floor($y/$size['extend']),1);
|
||||
$second = substr($table['extend'],$y%$size['extend'],1);
|
||||
$encode .= "$first$second";
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
return $encode;
|
||||
}
|
||||
}
|
||||
?>
|
||||
Reference in New Issue
Block a user