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<?php
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/**
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 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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 *
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 * Licensed under The MIT License
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 * Redistributions of files must retain the above copyright notice.
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 *
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 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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 * @link          http://cakephp.org CakePHP(tm) Project
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 * @since         DebugKit 1.0
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 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
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 */
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App::uses('AppHelper', 'View/Helper');
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App::uses('HtmlHelper', 'View/Helper');
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/**
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 * Class SimpleGraphHelper
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 *
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 * Allows creation and display of extremely simple graphing elements
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 *
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 * @since         DebugKit 1.0
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 */
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class SimpleGraphHelper extends AppHelper {
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/**
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 * Helpers
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 *
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 * @var array
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 */
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	public $helpers = array('Html');
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/**
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 * Default settings to be applied to each Simple Graph
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 *
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 * Allowed options:
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 *
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 * - max => (int) Maximum value in the graphs
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 * - width => (int)
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 * - valueType => string (value, percentage)
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 * - style => array
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 *
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 * @var array
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 */
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	protected $_defaultSettings = array(
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		'max' => 100,
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		'width' => 350,
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		'valueType' => 'value',
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	);
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/**
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 * bar method
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 *
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 * @param $value Value to be graphed
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 * @param $offset how much indentation
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 * @param array|\Graph $options Graph options
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 * @return string Html graph
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 */
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	public function bar($value, $offset, $options = array()) {
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		$settings = array_merge($this->_defaultSettings, $options);
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		extract($settings);
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		$graphValue = ($value / $max) * $width;
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		$graphValue = max(round($graphValue), 1);
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		if ($valueType === 'percentage') {
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			$graphOffset = 0;
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		} else {
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			$graphOffset = ($offset / $max) * $width;
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			$graphOffset = round($graphOffset);
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		}
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		return $this->Html->div(
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			'debug-kit-graph-bar',
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				$this->Html->div(
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					'debug-kit-graph-bar-value',
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					' ',
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					array(
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						'style' => "margin-left: {$graphOffset}px; width: {$graphValue}px",
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						'title' => __d('debug_kit', "Starting %sms into the request, taking %sms", $offset, $value),
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					)
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				),
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			array('style' => "width: {$width}px;"),
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			false
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		);
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	}
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}