108 lines
2.6 KiB
PHP
108 lines
2.6 KiB
PHP
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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 HighCharts Chart Drawing
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*
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* @package HighChart
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* @category Helper
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* @author Deon George
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* @copyright (c) 2012-2013 Deon George
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* @license http://dev.leenooks.net/license.html
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*/
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abstract class HighChart {
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protected $_series = array();
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protected $_divname = 'hchart';
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// Chart title
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protected $_title = '';
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// Default chart size.
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protected $_height = '300';
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protected $_width = '575';
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// Colors to use for series
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private $_series_colours = array('AAACCC','E0E0E0','CCC888','EEEBBB','666CCC','888888');
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// Render the chart data in a json format
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abstract public function json();
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// Our child class should define how to render as a string
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abstract public function render();
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public function __call($name,$args) {
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switch ($name) {
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case 'div': $this->_divname = array_shift($args);
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break;
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case 'height': $this->_height = array_shift($args);
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break;
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case 'title': $this->_title = array_shift($args);
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break;
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case 'width': $this->_width = array_shift($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 $e) {
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echo Debug::vars(array('m'=>__METHOD__,'e'=>$e));die();
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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($c))
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throw new Kohana_Exception('Unknown HighChart Type :class',array(':class'=>$class));
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else
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return new $c();
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}
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public function series($type,$axis) {
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if (! in_array($type,$this->_valid_axis))
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throw new Kohana_Exception('Type not allowed for Chart :type',array(':type'=>$type));
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$x = 'HighChart_Type_'.ucfirst($type);
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if (! class_exists($x))
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throw new Kohana_Exception('Class does not exist :class',array(':class'=>$x));
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if (! isset($this->_series[$axis]))
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$this->_series[$axis] = array();
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$c = count($this->_series[$axis]);
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$this->_series[$axis][$c] = new $x;
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return $this->_series[$axis][$c];
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}
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/**
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* Return the colors that will be used for this series
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*/
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protected function series_colour($c) {
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if (is_null($c))
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return NULL;
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static $colours = NULL;
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if (is_null($colours))
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$colors = count($this->_series_colours);
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return '#'.$this->_series_colours[$c%$colors];
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}
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}
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?>
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