105 lines
3.3 KiB
PHP
105 lines
3.3 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Image_Graph - PEAR PHP OO Graph Rendering Utility.
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*
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* PHP versions 4 and 5
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*
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* LICENSE: This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version. This library is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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* General Public License for more details. You should have received a copy of
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* the GNU Lesser General Public License along with this library; if not, write
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* to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*
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* @category Images
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* @package Image_Graph
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* @subpackage Marker
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* @author Jesper Veggerby <pear.nosey@veggerby.dk>
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* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
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* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
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* @version CVS: $Id: Array.php,v 1.6 2005/02/21 20:49:50 nosey Exp $
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* @link http://pear.php.net/package/Image_Graph
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*/
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/**
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* Include file Image/Graph/Marker.php
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*/
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require_once 'Image/Graph/Marker.php';
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/**
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* A sequential array of markers.
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*
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* This is used for displaying different markers for datapoints on a chart.
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* This is done by adding multiple markers to a MarkerArrray structure.
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* The marker array will then when requested return the 'next' marker in
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* sequential order. It is possible to specify ID tags to each marker, which is
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* used to make sure some data uses a specific marker.
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*
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* @category Images
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* @package Image_Graph
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* @subpackage Marker
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* @author Jesper Veggerby <pear.nosey@veggerby.dk>
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* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
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* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
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* @version Release: 0.7.2
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* @link http://pear.php.net/package/Image_Graph
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*/
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class Image_Graph_Marker_Array extends Image_Graph_Marker
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{
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/**
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* The marker array
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* @var array
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* @access private
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*/
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var $_markers = array ();
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/**
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* Add a marker style to the array
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*
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* @param Marker $marker The marker to add
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*/
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function add(& $marker)
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{
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if (is_a($marker, 'Image_Graph_Element')) {
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parent::add($marker);
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}
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$this->_markers[] =& $marker;
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reset($this->_markers);
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}
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/**
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* Draw the marker on the canvas
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*
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* @param int $x The X (horizontal) position (in pixels) of the marker on
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* the canvas
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* @param int $y The Y (vertical) position (in pixels) of the marker on the
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* canvas
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* @param array $values The values representing the data the marker 'points'
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* to
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* @access private
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*/
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function _drawMarker($x, $y, $values = false)
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{
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$ID = key($this->_markers);
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if (!next($this->_markers)) {
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reset($this->_markers);
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}
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$marker =& $this->_markers[$ID];
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if ($marker != null) {
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$marker->_drawMarker($x, $y, $values);
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}
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parent::_drawMarker($x, $y, $values);
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}
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}
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?>
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