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Deon George
170
modules/gchart/classes/GoogleChart/ComboChart.php
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170
modules/gchart/classes/GoogleChart/ComboChart.php
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@@ -0,0 +1,170 @@
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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 GoogleChart
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* @category Helper
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* @author Deon George
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* @copyright (c) 2009-2013 Deon George
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* @license http://dev.leenooks.net/license.html
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*/
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class GoogleChart_ComboChart extends GoogleChart {
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// Should the Y column range be a log() function
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protected $_logy = FALSE;
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// Should the bar values be stacked
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protected $_stacked = FALSE;
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// Default line type to use
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protected $_type = 'bars';
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public function logy($value) {
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$this->_logy = $value;
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return $this;
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}
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public function stacked($value) {
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$this->_stacked = $value;
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return $this;
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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 $this->cht
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*/
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public function ltitle($side,$title) {
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if (! in_array($side,array('yl','yr','x')))
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throw new Kohana_Exception('Unknown side :side',array(':side'=>$side));
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$this->_ltitle[$side] = $title;
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return $this;
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}
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public function json() {
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$result = array();
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$result['cols'][] = array(
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'id'=>'date',
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'label'=>'date',
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'type'=>'string',
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);
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// Columns
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foreach (array_keys($this->_axis) as $l) {
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$result['cols'][] = array(
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'id'=>$l,
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'label'=>$l,
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'type'=>'number',
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);
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}
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// Values
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foreach ($this as $k => $v) {
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$data = array();
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array_push($data,array('v'=>$k));
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foreach ($this->_axis as $l => $axis)
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array_push($data,array('v'=>isset($v[$l]) ? $v[$l] : 0));
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$result['rows'][] = array('c'=>$data);
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}
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$options = array(
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'bar' => array('groupWidth'=>'75%'),
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'vAxis' => array('logScale'=>$this->_logy ? 1:0),
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'title' => $this->_title,
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'isStacked' => $this->_stacked ? 1:0,
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'seriesType' => $this->_type,
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'series' => $this->series(),
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);
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return json_encode(array('data'=>$result,'options'=>$options));
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}
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public function render() {
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Script::add(array(
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'type'=>'src',
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'data'=>'https://www.google.com/jsapi',
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));
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Script::add(array(
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'type'=>'stdin',
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'data'=>'google.load("visualization", "1", {packages: ["corechart"]});',
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));
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Script::add(array(
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'type'=>'stdin',
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'data'=>"
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function drawChart_".$this->_divname."() {
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div = document.getElementById('".$this->_divname."');
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if (! div) {
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alert(\"Unable to render chart, DIV ['".$this->_divname."'] doesnt exist.\");
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return;
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}
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$.ajax({
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url: '".$this->_dataurl."',
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dataType: 'json',
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async: true,
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timeout: 10000,
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success: function(jsonData) {
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for(var key in jsonData) {
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if (key == 'data')
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data = jsonData[key];
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else if (key == 'options')
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options = jsonData[key];
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else
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alert('UNKNOWN Key: '+key);
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}
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// Create our data table out of JSON data loaded from server.
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var x = new google.visualization.DataTable(data);
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// Instantiate and draw our chart, passing in some options.
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var chart = new google.visualization.ComboChart(document.getElementById('".$this->_divname."'));
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chart.draw(x, options);
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},
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error: function(x, t, m) {
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if (t==='timeout') {
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alert('got timeout');
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} else {
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alert('t is: '+t+', X: '+x+', M: '+m);
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}
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}
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});
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}
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",
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));
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Script::add(array(
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'type'=>'stdin',
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'data'=>'$(document).ready(function() {google.setOnLoadCallback(drawChart_'.$this->_divname.'); });',
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));
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return sprintf('<div id="%s" style="width: %spx; height: %spx;"></div>',$this->_divname,$this->_width,$this->_height);
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}
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private function series() {
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$result = array();
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$c = $this->seriescolors();
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$j = count($c);
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$i = 0;
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foreach ($this->_axis as $l => $axis) {
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// @todo This shouldnt be hard coded
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if ($axis == 'yl')
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array_push($result,array('type'=>'bar','color'=>$c[$i%$j],'targetAxisIndex'=>0));
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else
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array_push($result,array('type'=>'line','color'=>$c[$i%$j],'targetAxisIndex'=>1));
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$i++;
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}
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return $result;
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}
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}
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?>
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220
modules/gchart/classes/GoogleChart/Legacy.php
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220
modules/gchart/classes/GoogleChart/Legacy.php
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@@ -0,0 +1,220 @@
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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 GoogleChart
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* @category Helper
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* @author Deon George
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* @copyright (c) 2009-2013 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 $i;
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}
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/**
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* Calculate our maximum for each side of the chart
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*/
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private function maxes() {
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$result = array();
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foreach ($this->_axis as $l => $axis) {
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if (! isset($result[$axis]))
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$result[$axis] = 0;
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$result[$axis] += $this->_max[$l]*1.1; // @todo This scaleup should be configurable
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}
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return $result;
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}
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/** CHART FIELDS **/
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private function chd() {
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$result = array();
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$maxes = $this->maxes();
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// Perform our encoding
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foreach ($this->_axis as $l => $axis)
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array_push($result,$this->encode($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') ? $prefix.implode('|',$result) : $prefix.implode(',',$result);
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}
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private function chm() {
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$result = array();
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$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($result,sprintf('%s,%s,%s,%s,%s,%s','D',$sc[$i],$i,0,2,2));// @todo 'D,0,2,2' May need to be configurable
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$i++;
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}
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return count($result) ? implode('|',$result) : '';
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}
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private function chxl() {
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$result = 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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$result = array();
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$i = 1;
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foreach ($this->maxes() as $key => $value)
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array_push($result,sprintf('%s,0,%s,0',$i++,$value));
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return implode('|',$result);
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}
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public function json() {}
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/**
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* Return URL that renders the chart
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*/
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public function render() {
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return sprintf('<img src="%s?%s" alt="%s">',$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'=>$this->_type,
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'chs'=>sprintf('%sx%s',$this->_width,$this->_height),
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'chtt'=>$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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