xref: /plugin/openlayersmap/syntax/olmap.php (revision c0a46f41dce2ace8722092fdf3bd0f42d59dc7c6) 
1<?php
2/*
3 * Copyright (c) 2008-2012 Mark C. Prins <mprins@users.sf.net>
4*
5* Permission to use, copy, modify, and distribute this software for any
6* purpose with or without fee is hereby granted, provided that the above
7* copyright notice and this permission notice appear in all copies.
8*
9* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16*/
17if (!defined('DOKU_INC'))define('DOKU_INC', realpath(dirname(__FILE__) . '/../../') . '/');
18if (!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN', DOKU_INC . 'lib/plugins/');
19require_once (DOKU_PLUGIN . 'syntax.php');
20
21/**
22 * DokuWiki Plugin openlayersmap (Syntax Component).
23 * Provides for display of an OpenLayers based map in a wiki page.
24 *
25 * @author Mark Prins
26*/
27class syntax_plugin_openlayersmap_olmap extends DokuWiki_Syntax_Plugin {
28
29	/** defaults of the known attributes of the olmap tag. */
30	private $dflt = array (
31			'id'		=> 'olmap',
32			'width'		=> '550px',
33			'height'	=> '450px',
34			'lat'		=> 50.0,
35			'lon'		=> 5.1,
36			'zoom'		=> 12,
37			'toolbar'	=> true,
38			'statusbar'	=> true,
39			'controls'	=> true,
40			'poihoverstyle'	=> false,
41			'baselyr'	=> 'OpenStreetMap',
42			'gpxfile'	=> '',
43			'kmlfile'	=> '',
44			'summary'	=> ''
45	);
46
47	/**
48	 * @see DokuWiki_Syntax_Plugin::getType()
49	*/
50	function getType() {
51		return 'substition';
52	}
53
54	/**
55	 * @see DokuWiki_Syntax_Plugin::getPType()
56	 */
57	function getPType() {
58		return 'block';
59	}
60
61	/**
62	 * @see Doku_Parser_Mode::getSort()
63	 */
64	function getSort() {
65		return 901;
66	}
67
68	/**
69	 * @see Doku_Parser_Mode::connectTo()
70	 */
71	function connectTo($mode) {
72		$this->Lexer->addSpecialPattern('<olmap ?[^>\n]*>.*?</olmap>', $mode, 'plugin_openlayersmap_olmap');
73	}
74
75	/**
76	 * @see DokuWiki_Syntax_Plugin::handle()
77	 */
78	function handle($match, $state, $pos, &$handler) {
79		// break matched cdata into its components
80		list ($str_params, $str_points) = explode('>', substr($match, 7, -9), 2);
81		// get the lat/lon for adding them to the metadata (used by geotag)
82		preg_match('(lat[:|=]\"-?\d*\.\d*\")',$match,$mainLat);
83		preg_match('(lon[:|=]\"-?\d*\.\d*\")',$match,$mainLon);
84		$mainLat=substr($mainLat[0],5,-1);
85		$mainLon=substr($mainLon[0],5,-1);
86
87		$gmap = $this->_extract_params($str_params);
88		$overlay = $this->_extract_points($str_points);
89		$_firstimageID ='';
90
91		// choose maptype based on tag
92		$imgUrl = "{{";
93		if (stripos($gmap['baselyr'],'google') !== false){
94			// use google
95			$imgUrl .= $this->_getGoogle($gmap, $overlay);
96			$imgUrl .="&.png";
97		} elseif (stripos($gmap['baselyr'],'ve') !== false){
98			// use bing
99			$imgUrl .= $this->_getBing($gmap, $overlay);
100			$imgUrl .="&.png";
101		} elseif (stripos($gmap['baselyr'],'bing') !== false){
102			// use bing
103			$imgUrl .= $this->_getBing($gmap, $overlay);
104			$imgUrl .="&.png";
105		} elseif (stripos($gmap['baselyr'],'mapquest') !== false){
106			if($this->getConf('optionStaticMapGenerator')=='remote'){
107				// use mapquest remote
108				$imgUrl .=$this->_getMapQuest($gmap,$overlay);
109				$imgUrl .="&.png";
110			} else{
111				$_firstimageID = $this->_getStaticOSM($gmap,$overlay);
112				$imgUrl .= $_firstimageID;
113			}
114		} else {
115			$_firstimageID = $this->_getStaticOSM($gmap,$overlay);
116			$imgUrl .= $_firstimageID;
117		}
118
119		// append dw p_render specific params and render
120		$imgUrl .="?".str_replace("px", "",$gmap['width'])."x".str_replace("px", "",$gmap['height']);
121		$imgUrl .= "&nolink";
122		$imgUrl .= " |".$gmap['summary']." }}";
123
124		$mapid = $gmap['id'];
125		// create a javascript parameter string for the map
126		$param = '';
127		foreach ($gmap as $key => $val) {
128			$param .= is_numeric($val) ? "$key: $val, " : "$key: '" . hsc($val) . "', ";
129		}
130		if (!empty ($param)) {
131			$param = substr($param, 0, -2);
132		}
133		unset ($gmap['id']);
134
135		// create a javascript serialisation of the point data
136		$poi = '';
137		$poitable='';
138		$rowId=0;
139		if (!empty ($overlay)) {
140			foreach ($overlay as $data) {
141				list ($lat, $lon, $text, $angle, $opacity, $img) = $data;
142				$rowId++;
143				$poi .= ", {lat: $lat, lon: $lon, txt: '$text', angle: $angle, opacity: $opacity, img: '$img', rowId: $rowId}";
144				$poitable .='
145						<tr>
146						<td class="rowId">'.$rowId.'</td>
147								<td class="icon"><img src="'.DOKU_BASE.'lib/plugins/openlayersmap/icons/'.$img.'" alt="icon" /></td>
148										<td class="lat" title="'.$this->getLang('olmapPOIlatTitle').'">'.$lat.'</td>
149												<td class="lon" title="'.$this->getLang('olmapPOIlonTitle').'">'.$lon.'</td>
150														<td class="txt">'.$text.'</td>
151																</tr>';
152			}
153			$poi = substr($poi, 2);
154		}
155		if (!empty ($gmap['kmlfile'])) {
156			$poitable .='
157					<tr>
158					<td class="rowId"><img src="'.DOKU_BASE.'lib/plugins/openlayersmap/toolbar/kml_file.png" alt="KML icon" /></td>
159							<td class="icon"><img src="'.DOKU_BASE.'lib/plugins/openlayersmap/toolbar/kml_line.png" alt="icon" /></td>
160									<td class="txt" colspan="3">KML track: '.$this->getFileName($gmap['kmlfile']).'</td>
161											</tr>';
162		}
163		if (!empty ($gmap['gpxfile'])) {
164			$poitable .='
165					<tr>
166					<td class="rowId"><img src="'.DOKU_BASE.'lib/plugins/openlayersmap/toolbar/gpx_file.png" alt="GPX icon" /></td>
167							<td class="icon"><img src="'.DOKU_BASE.'lib/plugins/openlayersmap/toolbar/gpx_line.png" alt="icon" /></td>
168									<td class="txt" colspan="3">GPX track: '.$this->getFileName($gmap['gpxfile']).'</td>
169											</tr>';
170		}
171
172		$js .= "{mapOpts:{" . $param . " },poi:[$poi]};";
173		// unescape the json
174		$poitable = stripslashes($poitable);
175
176		return array($mapid,$js,$mainLat,$mainLon,$poitable,$gmap['summary'],$imgUrl,$_firstimageID);
177	}
178
179	/**
180	 * @see DokuWiki_Syntax_Plugin::render()
181	 */
182	function render($mode, &$renderer, $data) {
183		// set to true after external scripts tags are written
184		static $initialised = false;
185		// incremented for each map tag in the page source so we can keep track of each map in a page
186		static $mapnumber = 0;
187
188		// dbglog($data, 'olmap::render() data.');
189		list ($mapid, $param, $mainLat, $mainLon, $poitable, $poitabledesc, $staticImgUrl, $_firstimage) = $data;
190
191		if ($mode == 'xhtml') {
192			$olscript = '';
193			$olEnable = false;
194			$gscript = '';
195			$gEnable = $this->getConf('enableGoogle');
196			$mqEnable = $this->getConf('enableMapQuest');
197			$osmEnable = $this->getConf('enableOSM');
198			$enableBing = $this->getConf('enableBing');
199
200			$scriptEnable = '';
201
202			if (!$initialised) {
203				$initialised = true;
204				// render necessary script tags
205				if($gEnable){
206					$gscript ='<script type="text/javascript" src="http://maps.google.com/maps/api/js?v=3.11&amp;sensor=false"></script>';
207				}
208				$olscript = $this->getConf('olScriptUrl');
209				$olscript = $olscript ? '<script type="text/javascript" src="' . $olscript . '"></script>' : "";
210				$olscript = str_replace('DOKU_BASE/', DOKU_BASE, $olscript);
211
212				$scriptEnable = '<script type="text/javascript" charset="utf-8">/*<![CDATA[*/';
213				$scriptEnable .= $olscript ? 'olEnable = true;' : 'olEnable = false;';
214				$scriptEnable .= 'gEnable = '.($gEnable ? 'true' : 'false').';';
215				$scriptEnable .= 'osmEnable = '.($osmEnable ? 'true' : 'false').';';
216				$scriptEnable .= 'mqEnable = '.($mqEnable ? 'true' : 'false').';';
217				$scriptEnable .= 'bEnable = '.($enableBing ? 'true' : 'false').';';
218				$scriptEnable .= 'bApiKey="'.$this->getConf('bingAPIKey').'";';
219				$scriptEnable .= 'OpenLayers.ImgPath = "'.DOKU_BASE.'lib/plugins/openlayersmap/lib/'.$this->getConf('olMapStyle').'/";';
220				$scriptEnable .= '/*!]]>*/</script>';
221			}
222			$renderer->doc .= "
223			$gscript
224			$olscript
225			$scriptEnable";
226
227			if ($this->getConf('enableA11y')){
228				$renderer->doc .= '<div id="'.$mapid.'-static" class="olStaticMap">'.p_render($mode, p_get_instructions($staticImgUrl), $info).'</div>';
229			}
230			$renderer->doc .= '<div id="'.$mapid.'-clearer" class="clearer"><p>&nbsp;</p></div>';
231			if ($this->getConf('enableA11y')){
232				// render a (initially hidden) table of the POI for the print and a11y presentation
233				$renderer->doc .= '<div class="olPOItableSpan" id="'.$mapid.'-table-span"><table class="olPOItable" id="'.$mapid.'-table" summary="'.$poitabledesc.'" title="'.$this->getLang('olmapPOItitle').'">
234<caption class="olPOITblCaption">'.$this->getLang('olmapPOItitle').'</caption>
235<thead class="olPOITblHeader">
236<tr>
237<th class="rowId" scope="col">id</th>
238<th class="icon" scope="col">'.$this->getLang('olmapPOIicon').'</th>
239<th class="lat" scope="col" title="'.$this->getLang('olmapPOIlatTitle').'">'.$this->getLang('olmapPOIlat').'</th>
240<th class="lon" scope="col" title="'.$this->getLang('olmapPOIlonTitle').'">'.$this->getLang('olmapPOIlon').'</th>
241<th class="txt" scope="col">'.$this->getLang('olmapPOItxt').'</th>
242</tr>
243</thead>';
244				if ($poitabledesc !=''){
245					$renderer->doc .='<tfoot class="olPOITblFooter"><tr><td colspan="5">'.$poitabledesc.'</td></tr></tfoot>';
246				}
247				$renderer->doc .='<tbody class="olPOITblBody">'.$poitable.'</tbody>
248</table></div>';
249			}
250			// render inline mapscript parts
251			$renderer->doc .='<script type="text/javascript" charset="utf-8">/*<![CDATA[*/';
252			$renderer->doc .=" olMapData[$mapnumber] = $param /*!]]>*/</script>";
253			$mapnumber++;
254			return true;
255		} elseif ($mode == 'metadata') {
256			if (!(($this->dflt['lat']==$mainLat) && ($thisdflt['lon']==$mainLon))){
257				// render geo metadata, unless they are the default
258				$renderer->meta['geo']['lat'] = $mainLat;
259				$renderer->meta['geo']['lon'] = $mainLon;
260				if ($geophp = &plugin_load('helper', 'geophp')){
261					// if we have the geoPHP helper, add the geohash
262					$renderer->meta['geo']['geohash'] = (new Point($mainLon,$mainLat))->out('geohash');
263				}
264			}
265
266			if(($this->getConf('enableA11y')) && (!empty($_firstimage))){
267				// add map local image into relation/firstimage if not already filled and when it is a local image
268
269				global $ID;
270				$rel = p_get_metadata($ID, 'relation', METADATA_RENDER_USING_CACHE);
271				$img = $rel['firstimage'];
272				if(empty($img) /* || $img == $_firstimage*/){
273					dbglog($_firstimage,'olmap::render#rendering image relation metadata for _firstimage as $img was empty or the same.');
274					// This seems to never work; the firstimage entry in the .meta file is empty
275					// $renderer->meta['relation']['firstimage'] = $_firstimage;
276
277					// ... and neither does this; the firstimage entry in the .meta file is empty
278					// $relation = array('relation'=>array('firstimage'=>$_firstimage));
279					// p_set_metadata($ID, $relation, false, false);
280
281					// ... this works
282					$renderer->internalmedia($_firstimage, $poitabledesc);
283				}
284			}
285			return true;
286		}
287		return false;
288	}
289
290	/**
291	 * extract parameters for the map from the parameter string
292	 *
293	 * @param   string    $str_params   string of key="value" pairs
294	 * @return  array                   associative array of parameters key=>value
295	 */
296	private function _extract_params($str_params) {
297		$param = array ();
298		preg_match_all('/(\w*)="(.*?)"/us', $str_params, $param, PREG_SET_ORDER);
299		// parse match for instructions, break into key value pairs
300		$gmap = $this->dflt;
301		foreach ($param as $kvpair) {
302			list ($match, $key, $val) = $kvpair;
303			$key = strtolower($key);
304			if (isset ($gmap[$key])){
305				if ($key == 'summary'){
306					// preserve case for summary field
307					$gmap[$key] = $val;
308				}else {
309					$gmap[$key] = strtolower($val);
310				}
311			}
312		}
313		return $gmap;
314	}
315
316	/**
317	 * extract overlay points for the map from the wiki syntax data
318	 *
319	 * @param   string    $str_points   multi-line string of lat,lon,text triplets
320	 * @return  array                   multi-dimensional array of lat,lon,text triplets
321	 */
322	private function _extract_points($str_points) {
323		$point = array ();
324		//preg_match_all('/^([+-]?[0-9].*?),\s*([+-]?[0-9].*?),(.*?),(.*?),(.*?),(.*)$/um', $str_points, $point, PREG_SET_ORDER);
325		/*
326		group 1: ([+-]?[0-9]+(?:\.[0-9]*)?)
327		group 2: ([+-]?[0-9]+(?:\.[0-9]*)?)
328		group 3: (.*?)
329		group 4: (.*?)
330		group 5: (.*?)
331		group 6: (.*)
332		*/
333		preg_match_all('/^([+-]?[0-9]+(?:\.[0-9]*)?),\s*([+-]?[0-9]+(?:\.[0-9]*)?),(.*?),(.*?),(.*?),(.*)$/um', $str_points, $point, PREG_SET_ORDER);
334		// create poi array
335		$overlay = array ();
336		foreach ($point as $pt) {
337			list ($match, $lat, $lon, $angle, $opacity, $img, $text) = $pt;
338			$lat = is_numeric($lat) ? $lat : 0;
339			$lon = is_numeric($lon) ? $lon : 0;
340			$angle = is_numeric($angle) ? $angle : 0;
341			$opacity = is_numeric($opacity) ? $opacity : 0.8;
342			$img = trim($img);
343			// TODO validate using exist & set up default img?
344			$text = addslashes(str_replace("\n", "", p_render("xhtml", p_get_instructions($text), $info)));
345			$overlay[] = array($lat, $lon, $text, $angle, $opacity, $img);
346		}
347		return $overlay;
348	}
349
350	/**
351	 * Create a MapQuest static map API image url.
352	 * @param array $gmap
353	 * @param array $overlay
354	 */
355	private function _getMapQuest($gmap,$overlay) {
356		$sUrl=$this->getConf('iconUrlOverload');
357		if (!$sUrl){
358			$sUrl=DOKU_URL;
359		}
360		switch ($gmap['baselyr']){
361			case 'mapquest hybrid':
362				$maptype='hyb';
363				break;
364			case 'mapquest sat':
365				// because sat coverage is very limited use 'hyb' instead of 'sat' so we don't get a blank map
366				$maptype='hyb';
367				break;
368			case 'mapquest road':
369			default:
370				$maptype='map';
371				break;
372		}
373		$imgUrl = "http://open.mapquestapi.com/staticmap/v4/getmap?declutter=true&";
374		if (count($overlay)< 1){
375			$imgUrl .= "?center=".$gmap['lat'].",".$gmap['lon'];
376			//max level for mapquest is 16
377			if ($gmap['zoom']>16) {
378				$imgUrl .= "&zoom=16";
379			} else			{
380				$imgUrl .= "&zoom=".$gmap['zoom'];
381			}
382		}
383		// use bestfit instead of center/zoom, needs upperleft/lowerright corners
384		//$bbox=$this->_calcBBOX($overlay, $gmap['lat'], $gmap['lon']);
385		//$imgUrl .= "bestfit=".$bbox['minlat'].",".$bbox['maxlon'].",".$bbox['maxlat'].",".$bbox['minlon'];
386
387		// TODO declutter option works well for square maps but not for rectangular, maybe compensate for that or compensate the mbr..
388		$imgUrl .= "&size=".str_replace("px", "",$gmap['width']).",".str_replace("px", "",$gmap['height']);
389
390		// TODO mapquest allows using one image url with a multiplier $NUMBER eg:
391		// $NUMBER = 2
392		// $imgUrl .= DOKU_URL."/".DOKU_PLUGIN."/".getPluginName()."/icons/".$img.",$NUMBER,C,".$lat1.",".$lon1.",0,0,0,0,C,".$lat2.",".$lon2.",0,0,0,0";
393		if (!empty ($overlay)) {
394			$imgUrl .= "&xis=";
395			foreach ($overlay as $data) {
396				list ($lat, $lon, $text, $angle, $opacity, $img) = $data;
397				//$imgUrl .= $sUrl."lib/plugins/openlayersmap/icons/".$img.",1,C,".$lat.",".$lon.",0,0,0,0,";
398				$imgUrl .= $sUrl."lib/plugins/openlayersmap/icons/".$img.",1,C,".$lat.",".$lon.",";
399			}
400			$imgUrl = substr($imgUrl,0,-1);
401		}
402		$imgUrl .= "&imageType=png&type=".$maptype;
403		//dbglog($imgUrl,'syntax_plugin_openlayersmap_olmap::_getMapQuest: MapQuest image url is:');
404		return $imgUrl;
405	}
406
407	/**
408	 * Create a Google maps static image url w/ the poi.
409	 * @param array $gmap
410	 * @param array $overlay
411	 */
412	private function _getGoogle($gmap, $overlay){
413		$sUrl=$this->getConf('iconUrlOverload');
414		if (!$sUrl){
415			$sUrl=DOKU_URL;
416		}
417		switch ($gmap['baselyr']){
418			case 'google hybrid':
419				$maptype='hybrid';
420				break;
421			case 'google sat':
422				$maptype='satellite';
423				break;
424			case 'google relief':
425				$maptype='terrain';
426				break;
427			case 'google road':
428			default:
429				$maptype='roadmap';
430				break;
431		}
432		// TODO maybe use viewport / visible instead of center/zoom,
433		//		see: https://code.google.com/intl/nl/apis/maps/documentation/staticmaps/#ImplicitPositioning
434		//http://maps.google.com/maps/api/staticmap?center=51.565690,5.456756&zoom=16&size=600x400&markers=icon:http://wild-water.nl/dokuwiki/lib/plugins/openlayersmap/icons/marker.png|label:1|51.565690,5.456756&markers=icon:http://wild-water.nl/dokuwiki/lib/plugins/openlayersmap/icons/marker-blue.png|51.566197,5.458966|label:2&markers=icon:http://wild-water.nl/dokuwiki/lib/plugins/openlayersmap/icons/parking.png|51.567177,5.457909|label:3&markers=icon:http://wild-water.nl/dokuwiki/lib/plugins/openlayersmap/icons/parking.png|51.566283,5.457330|label:4&markers=icon:http://wild-water.nl/dokuwiki/lib/plugins/openlayersmap/icons/parking.png|51.565630,5.457695|label:5&sensor=false&format=png&maptype=roadmap
435		$imgUrl = "http://maps.google.com/maps/api/staticmap?sensor=false";
436		$imgUrl .= "&size=".str_replace("px", "",$gmap['width'])."x".str_replace("px", "",$gmap['height']);
437		$imgUrl .= "&center=".$gmap['lat'].",".$gmap['lon'];
438		// max is 21 (== building scale), but that's overkill..
439		if ($gmap['zoom']>17) {
440			$imgUrl .= "&zoom=17";
441		} else			{
442			$imgUrl .= "&zoom=".$gmap['zoom'];
443		}
444
445		if (!empty ($overlay)) {
446			$rowId=0;
447			foreach ($overlay as $data) {
448				list ($lat, $lon, $text, $angle, $opacity, $img) = $data;
449				$imgUrl .= "&markers=icon%3a".$sUrl."lib/plugins/openlayersmap/icons/".$img."%7c".$lat.",".$lon."%7clabel%3a".++$rowId;
450			}
451		}
452		$imgUrl .= "&format=png&maptype=".$maptype;
453		global $conf;
454		$imgUrl .= "&language=".$conf['lang'];
455		//dbglog($imgUrl,'syntax_plugin_openlayersmap_olmap::_getGoogle: Google image url is:');
456		return $imgUrl;
457	}
458
459	/**
460	 * Create a Bing maps static image url w/ the poi.
461	 * @param array $gmap
462	 * @param array $overlay
463	 */
464	private function _getBing($gmap, $overlay){
465		if(!$this->getConf('bingAPIKey')){
466			// in case there is no Bing api key we'll use OSM
467			$this->_getStaticOSM($gmap, $overlay);
468		}
469		switch ($gmap['baselyr']){
470			case 've hybrid':
471			case 'bing hybrid':
472				$maptype='AerialWithLabels';
473				break;
474			case 've sat':
475			case 'bing sat':
476				$maptype='Aerial';
477				break;
478			case 've normal':
479			case 've road':
480			case 've':
481			case 'bing road':
482			default:
483				$maptype='Road';
484				break;
485		}
486		$imgUrl = "http://dev.virtualearth.net/REST/v1/Imagery/Map/".$maptype."/";
487		if (!$this->getConf('autoZoomMap')){
488			$bbox=$this->_calcBBOX($overlay, $gmap['lat'], $gmap['lon']);
489			$imgUrl .= "?mapArea=".$bbox['minlat'].",".$bbox['minlon'].",".$bbox['maxlat'].",".$bbox['maxlon'];
490			$imgUrl .= "&declutter=1";
491			// or
492			//$imgUrl .= $gmap['lat'].",".$gmap['lon']."/".$gmap['zoom']."?";
493		}
494		if (strpos($imgUrl, "?") === false) $imgUrl .= "?";
495
496		$imgUrl .= "&ms=".str_replace("px", "",$gmap['width']).",".str_replace("px", "",$gmap['height']);
497		$imgUrl .= "&key=".$this->getConf('bingAPIKey');
498		if (!empty ($overlay)) {
499			$rowId=0;
500			foreach ($overlay as $data) {
501				list ($lat, $lon, $text, $angle, $opacity, $img) = $data;
502				// TODO icon style lookup, see: http://msdn.microsoft.com/en-us/library/ff701719.aspx for iconStyle
503				$iconStyle=32;
504				$rowId++;
505				// NOTE: the max number of pushpins is 18! or we have tuo use POST (http://msdn.microsoft.com/en-us/library/ff701724.aspx)
506				if ($rowId==18) {
507					break;
508				}
509				$imgUrl .= "&pp=$lat,$lon;$iconStyle;$rowId";
510			}
511		}
512		//dbglog($imgUrl,'syntax_plugin_openlayersmap_olmap::_getBing: bing image url is:');
513		return $imgUrl;
514	}
515
516	/**
517	 * Create a static OSM map image url w/ the poi from http://staticmap.openstreetmap.de (staticMapLite)
518	 * use http://staticmap.openstreetmap.de "staticMapLite" or a local version
519	 * @param array $gmap
520	 * @param array $overlay
521	 *
522	 * @todo implementation for http://ojw.dev.openstreetmap.org/StaticMapDev/
523	 */
524	private function _getStaticOSM($gmap, $overlay){
525		//http://staticmap.openstreetmap.de/staticmap.php?center=47.000622235634,10.117187497601&zoom=5&size=500x350
526		// &markers=48.999812532766,8.3593749976708,lightblue1|43.154850037315,17.499999997306,lightblue1|49.487527053077,10.820312497573,ltblu-pushpin|47.951071133739,15.917968747369,ol-marker|47.921629720114,18.027343747285,ol-marker-gold|47.951071133739,19.257812497236,ol-marker-blue|47.180141361692,19.257812497236,ol-marker-green
527		global $conf;
528
529		switch ($this->getConf('optionStaticMapGenerator')){
530			case 'local':
531				// TODO this is not ever used see below..
532				$imgUrl =$conf['baseurl']."/lib/plugins/openlayersmap/StaticMap.php";
533				$imgUrl .= '?kml='.$gmap['kmlfile'];
534				$imgUrl .= '&gpx='.$gmap['gpxfile'];
535				break;
536			case 'remote':
537				// fall through to default
538			default:
539				$imgUrl = "http://staticmap.openstreetmap.de/staticmap.php";
540				break;
541		}
542
543		$imgUrl .= "&center=".$gmap['lat'].",".$gmap['lon'];
544		$imgUrl .= "&size=".str_replace("px", "",$gmap['width'])."x".str_replace("px", "",$gmap['height']);
545		$size =str_replace("px", "",$gmap['width'])."x".str_replace("px", "",$gmap['height']);
546
547		if ($gmap['zoom']>16) {
548			// actually this could even be 18, but that seems overkill
549			$imgUrl .= "&zoom=16";
550		} else {
551			$imgUrl .= "&zoom=".$gmap['zoom'];
552		}
553
554		switch ($gmap['baselyr']){
555			case 'mapnik':
556			case 'openstreetmap':
557				$maptype='openstreetmap';
558				break;
559			case 'transport':
560				$maptype='transport';
561				break;
562			case 'landscape':
563				$maptype='landscape';
564				break;
565			case 'cycle map':
566				$maptype='cycle';
567				break;
568			case 'cloudmade':
569				$maptype='cloudmade';
570				break;
571			case 'cloudmade fresh':
572				$maptype='fresh';
573				break;
574			case 'hike and bike map':
575				$maptype='hikeandbike';
576				break;
577			case 'mapquest hybrid':
578			case 'mapquest road':
579			case 'mapquest sat':
580				$maptype='mapquest';
581				break;
582			default:
583				$maptype='';
584				break;
585		}
586		$imgUrl .= "&maptype=".$maptype;
587
588		$markers='';
589		if (!empty ($overlay)) {
590			$rowId=0;
591			$imgUrl .= "&markers=";
592			foreach ($overlay as $data) {
593				list ($lat, $lon, $text, $angle, $opacity, $img) = $data;
594				$rowId++;
595				if ($this->getConf('optionStaticMapGenerator')=='remote') $iconStyle = "lightblue$rowId";
596				if ($this->getConf('optionStaticMapGenerator')=='local') $iconStyle = substr($img, 0,strlen($img)-4);
597				$imgUrl .= "$lat,$lon,$iconStyle%7c";
598				$markers[] = array(
599						'lat'=>$lat,
600						'lon'=>$lon,
601						'type'=>$iconStyle);
602			}
603			$imgUrl = substr($imgUrl,0,-3);
604		}
605
606		if (!$my = &plugin_load('helper', 'openlayersmap_staticmap')){
607			dbglog($my,'syntax_plugin_openlayersmap_olmap::_getStaticOSM: openlayersmap_staticmap plugin is not available.');
608		}
609		if (!$geophp = &plugin_load('helper', 'geophp')){
610			dbglog($geophp,'syntax_plugin_openlayersmap_olmap::_getStaticOSM: geophp plugin is not available.');
611		}
612
613		// default to external provider
614		$result= $imgUrl;
615		if ($this->getConf('optionStaticMapGenerator')=='local') {
616			$result = $my->getMap($gmap['lat'],$gmap['lon'],$gmap['zoom'],$size,$maptype,$markers,$gmap['gpxfile'],$gmap['kmlfile']);
617		}
618
619		//dbglog($result,'syntax_plugin_openlayersmap_olmap::_getStaticOSM: osm image url is:');
620		return $result;
621	}
622
623	/**
624	 * Calculate the minimum bbox for a start location + poi.
625	 *
626	 * @param array $overlay  multi-dimensional array of array($lat, $lon, $text, $angle, $opacity, $img)
627	 * @param float $lat latitude for map center
628	 * @param float $lon longitude for map center
629	 * @return multitype:float array describing the mbr and center point
630	 */
631	private function _calcBBOX($overlay, $lat, $lon){
632		$lats[] = $lat;
633		$lons[] = $lon;
634		foreach ($overlay as $data) {
635			list ($lat, $lon, $text, $angle, $opacity, $img) = $data;
636			$lats[] = $lat;
637			$lons[] = $lon;
638		}
639		sort($lats);
640		sort($lons);
641		// TODO: make edge/wrap around cases work
642		$centerlat = $lats[0]+($lats[count($lats)-1]-$lats[0]);
643		$centerlon = $lons[0]+($lons[count($lats)-1]-$lons[0]);
644		return array('minlat'=>$lats[0], 'minlon'=>$lons[0],
645				'maxlat'=>$lats[count($lats)-1], 'maxlon'=>$lons[count($lats)-1],
646				'centerlat'=>$centerlat,'centerlon'=>$centerlon);
647	}
648
649	/**
650	 * Figures out the base filename of a media path.
651	 * @param String $mediaLink
652	 */
653	private function getFileName($mediaLink){
654		$mediaLink=str_replace('[[','',$mediaLink);
655		$mediaLink=str_replace(']]','',$mediaLink);
656		$mediaLink = substr($mediaLink, 0, -4);
657		$parts=explode(':',$mediaLink);
658		$mediaLink = end($parts);
659		return str_replace('_',' ',$mediaLink);
660	}
661}