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<?php
/**
* Map. Create and display a map using Leaflet.
*
* This file is part of Zoph.
*
* Zoph is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Zoph is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with Zoph; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* @author Jeroen Roos
* @package Zoph
*/
namespace geo;
use conf\conf;
use place;
use photo;
/**
* Mapping class.
*
* @author Jeroen Roos
* @package Zoph
*/
class map extends \template\block {
/** @var string id for map */
private $map = "map";
/** @var float center lattitude */
protected $clat;
/** @var float center longitude */
protected $clon;
/** @var int zoom level */
protected $zoom;
/** @var array of tracks to display on this map */
private $tracks=array();
/** @var array of markers to display on this map */
private $markers=array();
/** @var bool whether or not this map can be changed. i.e. used to add a marker */
protected $edit=false;
/**
* Create a new map object
* @param string template to use
* @param array variables to pass to template
* @return map new object
*/
public function __construct($template="map", $vars=null) {
if (!is_array($vars)) {
$vars=array();
}
if (!array_key_exists("id", $vars)) {
$vars["id"]=$this->map;
}
if (!array_key_exists("provider", $vars)) {
$vars["provider"]=conf::get("maps.provider");
}
parent::__construct($template, $vars);
}
/**
* Add a marker to the map
* @param marker marker to add
*/
public function addMarker(marker $marker) {
$this->markers[]=$marker;
}
/**
* Add multiple markers from objects
* @param array Array of objects to get markers from
*/
public function addMarkers(array $objs) {
foreach ($objs as $obj) {
$marker=$obj->getMarker();
if ($marker instanceof marker) {
$this->addMarker($marker);
}
}
}
/**
* Get markers for this map
* @return array array of markers for this map.
* if multiple photos are taken in the same place, that place
* is multiple times in the array, so this function removes doubles
*/
public function getMarkers() {
return array_unique($this->markers, SORT_REGULAR);
}
/**
* Checks whether this maps has markers
* @return bool
*/
public function hasMarkers() {
return !empty($this->markers);
}
/**
* Add a track
* @param track
*/
public function addTrack(track $track) {
$this->tracks[]=$track;
}
/**
* Get tracks
* @return Array tracks
*/
public function getTracks() {
return $this->tracks;
}
/**
* Checks whether this maps has tracks
* @return bool
*/
public function hasTracks() {
return !empty($this->tracks);
}
/**
* Set center and zoom
* This sets the center point and zoom level for the map
* @param float latitude
* @param float longitude
* @param int zoom level
*/
public function setCenterAndZoom($lat=0, $lon=0, $zoom=2) {
$this->clat=(float) $lat;
$this->clon=(float) $lon;
$this->zoom=(int) $zoom;
}
/**
* Set center and zoom from object
* Can take a location object and determine center and zoom from there
* it can also take a photo object to determine c&s.
* If a photo object does not have c&z, it will see if the photo has
* a location set, and determine it from there.
* If a location does not have c&z, it can go up in the tree until
* it find an ancestor with c&z set.
* @param mapable object to get location from
*/
public function setCenterAndZoomFromObj(mapable $obj) {
$lat=$obj->get("lat");
$lon=$obj->get("lon");
$zoom=$obj->get("mapzoom");
if (!$lat && !$lon) {
if ($obj instanceof photo && $obj->location instanceof place) {
$this->setCenterAndZoomFromObj($obj->location);
} else if ($obj instanceof place && (place::getRoot()->getId() != $obj->getId())) {
$this->setCenterAndZoomFromObj($obj->getParent());
}
} else {
$this->setCenterAndZoom($lat ?: 0, $lon ?: 0, $zoom ?: 2);
}
}
/**
* Set whether or not this map can be changed
* (used to add markers to a place or photo)
* @param bool
*/
public function setEditable($edit=true) {
$this->edit=(bool) $edit;
}
}
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