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<?php
/**
*
* EGMapMarkerClusterer Class
*
* @link http://google-maps-utility-library-v3.googlecode.com/svn/tags/markerclusterer/1.0/docs/reference.html
* from utility library MarkerClusterer Google Maps V3
*
* @author Antonio Ramirez Cobos
*
*
* @copyright
*
* Copyright (c) 2010 Antonio Ramirez Cobos
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
* and associated documentation files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
* The above copyright notice and this permission notice shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
* LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
* NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
class EGMapMarkerClusterer extends EGMapBase
{
protected $options = array(
// The minimum number of markers to be in a cluster before the markers are hidden and a count
'minimumClusterSize' => null,
// Wether the center of each cluster should be the average of all markers in the cluster
'averageCenetr' => null,
// Whether the default behaviour of clicking on cluster is to zoom into it.
'zoomOnClick' => null,
// The grid size of a cluster in pixel. Each cluster will be a square. If you want the algorithm to run faster, you can
// set this value larger. The default value is 60.
'gridSize' => null,
// The max zoom level monitored by a marker cluster. If not given, the marker cluster assumes the maximum map zoom level.
// When maxZoom is reached or exceeded all markers will be shown without cluster.
'maxZoom' => null,
// Custom styles for the cluster markers. The array should be ordered according to increasing cluster size, with the style
// for the smallest clusters first, and the style for the largest clusters last.
// must be an array with any of the following options:
//
// height Number Image height.
// width Number Image width.
// anchor Array of Number Anchor for label text, like [24, 12]. If not set, the text will align center and middle.
// textColor String Text color. The default value is "black".
// textSize Number Text size.
// url String Image url.
// backgroundPosition String The position of the background x, y
//
'styles' => null
);
/**
*
* Collection of EGMapMarkers markers
* @var array
*/
protected $markers;
/**
*
* Class constructor
* @param array options
*/
public function __construct( $options = array() )
{
$this->markers = new CTypedMap('EGMapMarker');
$this->setOptions($options);
}
/**
*
* Sets plugin options
* @param array $options
* @throws CException
*/
public function setOptions( $options ){
if(!is_array( $options ))
throw new CException( Yii::t('EGMap', 'EGMapMarkerClusterer options must be of type array!'));
if(isset($options['styles'])){
$this->setStyles($options['styles']);
unset($options['styles']);
}
$this->options = array_merge($this->options, $options);
}
/**
*
* Sets a plugin option
* @param string $name option
* @param mixed $value
*/
public function setStyles( $value ){
$this->options['styles'] = CJavaScript::encode($value);
}
/**
*
* Adds a marker to its internal collection
* @param EGMapMarker $marker
*/
public function addMarker( EGMapMarker $marker){
$this->markers->add($marker->getJsName(), $marker);
}
/**
* @return string Javascript code to return the Point
*/
public function toJs( $map_js_name = 'map' )
{
$markers = array();
if(count($this->markers)){
foreach($this->markers as $m)
$markers[] = $m->getJsName();
}
$return = 'var '.$this->getJsName().'= new MarkerClusterer('.$map_js_name.','.EGMap::encode($markers).','.EGMap::encode($this->options).');';
return $return;
}
}
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