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<?php |
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/** |
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* @copyright Copyright (c) 2013-2015 2amigOS! Consulting Group LLC |
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* @link http://2amigos.us |
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* @license http://www.opensource.org/licenses/bsd-license.php New BSD License |
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*/ |
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namespace dosamigos\leaflet\layers; |
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use yii\base\InvalidConfigException; |
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use yii\web\JsExpression; |
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/** |
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* TileLayer is used to load and display tile layers on the map |
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* |
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* @see http://leafletjs.com/reference.html#tilelayer |
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* @author Antonio Ramirez <[email protected]> |
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* @link http://www.ramirezcobos.com/ |
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* @link http://www.2amigos.us/ |
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* @package dosamigos\leaflet\layers |
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*/ |
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class TileLayer extends Layer |
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{ |
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/** |
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* @var string a template has the following form: |
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* |
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* ``` |
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* 'http://{s}.somedomain.com/blabla/{z}/{x}/{y}.png' |
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* ``` |
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* |
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* {s} means one of the available subdomains (used sequentially to help with browser parallel requests per domain |
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* limitation; subdomain values are specified in options; a, b or c by default, can be omitted), {z} — zoom level, |
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* {x} and {y} — tile coordinates. |
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* |
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* You can use custom keys in the template, which will be evaluated from TileLayer options, like this: |
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* |
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* ``` |
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* $layer = new TileLayer([ |
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* 'urlTemplate' => 'L.tileLayer('http://{s}.somedomain.com/{foo}/{z}/{x}/{y}.png', |
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* 'clientOptions' => [ |
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* 'foo' => 'bar' |
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* ] |
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* ]); |
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* ``` |
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*/ |
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public $urlTemplate; |
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/** |
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* @throws \yii\base\InvalidConfigException |
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*/ |
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public function init() |
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{ |
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parent::init(); |
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if (empty($this->urlTemplate)) { |
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throw new InvalidConfigException("'urlTemplate' cannot be empty."); |
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} |
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} |
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/** |
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* @return \yii\web\JsExpression the marker constructor string |
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*/ |
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public function encode() |
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{ |
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$options = $this->getOptions(); |
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$name = $this->getName(); |
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$map = $this->map; |
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$js = "L.tileLayer('$this->urlTemplate', $options)" . ($map !== null ? ".addTo($map);" : ""); |
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if (!empty($name)) { |
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$js = "var $name = $js" . ($map !== null ? "" : ";"); |
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$js .= $this->getEvents(); |
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} |
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return new JsExpression($js); |
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} |
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} |
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