GoogleChartLabelStyle.class.php

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00001 <?php
00002 /***************************************************************************
00003  *   Copyright (C) 2009 by Denis M. Gabaidulin                             *
00004  *                                                                         *
00005  *   This program is free software; you can redistribute it and/or modify  *
00006  *   it under the terms of the GNU Lesser General Public License as        *
00007  *   published by the Free Software Foundation; either version 3 of the    *
00008  *   License, or (at your option) any later version.                       *
00009  *                                                                         *
00010  ***************************************************************************/
00011 
00015     final class GoogleChartLabelStyle extends BaseGoogleChartStyle
00016     {
00017         protected $name = 'chm';
00018         
00022         public static function create()
00023         {
00024             return new self;
00025         }
00026         
00030         public function addStyle($style)
00031         {
00032             Assert::isInstance($style, 'ChartLabelStyle');
00033             
00034             return parent::addStyle($style);
00035         }
00036         
00037         public function hasStyles()
00038         {
00039             return !empty($this->styles);
00040         }
00041         
00042         public function toString()
00043         {
00044             $queryString = "{$this->name}=";
00045             
00046             Assert::isNotEmptyArray($this->styles);
00047             
00048             $i = 0;
00049             
00050             foreach ($this->styles as $style)
00051                 $queryString .= $style->toString().'|';
00052             
00053             return rtrim($queryString, '|');
00054         }
00055     }
00056 ?>