# GoogleGridedLineChart.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 GoogleGridedLineChart extends GoogleNormalizedLineChart
    00016     {
    00017         private $grid = null;
    00018
    00022         public static function create()
    00023         {
    00024             return new self;
    00025         }
    00026
    00030         public function setGrid(GoogleChartGrid $grid)
    00031         {
    00032             $this->grid = $grid;
    00033
    00034             return $this;
    00035         }
    00036
    00040         public function getGrid()
    00041         {
    00042             return $this->grid;
    00043         }
    00044
    00045         public function toString()
    00046         {
    00047             if (!$this->grid)
    00048                 $this->createDefault();
    00049
    00050             $string = parent::toString();
    00051
    00052             $string .= '&'.$this->grid->toString();
    00053
    00054             return $string;
    00055         }
    00056
    00060         private function createDefault()
    00061         {
    00062             $this->grid = GoogleChartGrid::create();
    00063
    00064             $maxSteps = $this->getData()->getMaxSteps();
    00065
    00066             if ($maxSteps > 0)
    00067                 $this->grid->setVerticalStepSize(round(100 / $maxSteps, 1));
    00068
    00069             if (
    00070                 (
    00071                     $axis = $this->axesCollection->getAxisByTypeId(
    00072                         GoogleChartAxisType::X
    00073                     )
    00074                 ) && ($label = $axis->getLabel())
    00075                 && ($label->getCount() > 1)
    00076             )
    00077                 $this->grid->setHorizontalStepSize(
    00078                     round(100 / ($label->getCount() - 1), 2)
    00079                 );
    00080
    00081             return $this;
    00082         }
    00083     }
    00084 ?>