<?php
# $Id: class_wmc.php 645 2006-12-08 12:58:39Z christoph $
# http://www.mapbender.org/index.php/class_wmc.php
# Copyright (C) 2002 CCGIS 
#
# This program 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, or (at your option)
# any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

require_once("../../conf/mapbender.conf");
require_once("../classes/class_wms.php");
require_once("../classes/class_mb_exception.php");
require_once("../classes/class_administration.php");

function sepNameSpace($s){
	$c = strpos($s,":"); 
	if($c>0)return substr($s,$c+1);
	return $s;
}
class wmc {

		var $wmc_id;
		var $wmc_version;
		var $wmc_windowWidth;
		var $wmc_windowHeight;
		var $wmc_bBox_SRS;
		var $wmc_bBox_minx;
		var $wmc_bBox_maxx;
		var $wmc_bBox_miny;
		var $wmc_bBox_maxy;
		var $wmc_name;
		var $wmc_title;
		var $wmc_abstract;
		var $wmc_logourl;
		var $wmc_logourl_format;
		var $wmc_logourl_type;
		var $wmc_logourl_width;
		var $wmc_logourl_height;
		var $wmc_descriptionurl;
		var $wmc_descriptionurl_format;
		var $wmc_descriptionurl_type;
		var $wmc_keyword = array();
		var $wmc_contactposition;
		var $wmc_contactvoicetelephone;
		var $wmc_contactemail;
		var $wmc_contactfacsimiletelephone;
		var $wmc_contactperson;
		var $wmc_contactorganization;
		var $wmc_contactaddresstype;
		var $wmc_contactaddress;
		var $wmc_contactcity;
		var $wmc_contactstateorprovince;
		var $wmc_contactpostcode;
		var $wmc_contactcountry;
					
		var $wmc_wms_title = array();
		var $wmc_layer_queryable = array();
		var $wmc_layer_querylayer = array();
		var $wmc_layer_hidden = array();
		var $wmc_wms_id = array();
		var $wmc_wms_service = array();
		var $wmc_wms_version = array();
		var $wmc_layer_id = array();
		var $wmc_layer_title = array();
		var $wmc_layer_name = array();
		var $wmc_layer_abstract = array();
		var $wmc_layer_srs = array();
		var $wmc_wms_serviceURL = array();
		var $wmc_layer_format_current = array();
		var $wmc_layer_dataurl = array();
		var $wmc_layer_metadataurl = array();
		var $wmc_layer_minscale = array();
		var $wmc_layer_maxscale = array();
		var $wmc_layer_format = array();
		var $wmc_layer_style_current = array();
		var $wmc_layer_style_name = array();
		var $wmc_layer_style_title = array();
		var $wmc_layer_style_legendurl = array();
		var $wmc_layer_style_legendurl_width = array();
		var $wmc_layer_style_legendurl_height = array();
		var $wmc_layer_style_legendurl_format = array();
		var $wmc_layer_style_legendurl_type = array();
		var $wmc_layer_style_sld_url = array();
		var $wmc_layer_style_sld_type = array();
		var $wmc_layer_style_sld_title = array();
		var $wmc_wms_count = 0;
			
	function wmc() {	
	} 
	
	function getTitle() {
		return $this->wmc_title;
	}
	
	function getNumberOfWms () {
		return $this->wmc_wms_count;
	}

	function createObjFromWMC_id($wmc_id){
		
		$con = db_connect(DBSERVER,OWNER,PW);
		db_select_db(DB, $con);
		
		$sql = "SELECT wmc FROM mb_user_wmc WHERE wmc_id = $1";
		$v = array($wmc_id);
		$t = array("s");
		$res = db_prep_query($sql, $v, $t);
		$wmc = db_fetch_array($res);
		$this->createObjFromWMC_xml($wmc[0]);
	
	}

	function createObjFromWMC_xml($data){
		$values = NULL;
		$tags = NULL;
		$parser = xml_parser_create(CHARSET);
		xml_parser_set_option($parser,XML_OPTION_CASE_FOLDING,0);
		xml_parser_set_option($parser,XML_OPTION_SKIP_WHITE,1);
		xml_parser_set_option($parser,XML_OPTION_TARGET_ENCODING,CHARSET);
		xml_parse_into_struct($parser,$data,$values,$tags);
		$code = xml_get_error_code ($parser);
		if ($code) {
			$line = xml_get_current_line_number($parser); 
			$mb_exception = new mb_exception(xml_error_string($code) .  " in line " . $line);
			return false;
		}
		xml_parser_free($parser);
		
		$section = NULL;
		$format = NULL;
		$cnt_format = 0;
		$parent = array();
		$myParent = array();
		$cnt_layer = -1;
		$request = NULL; 
		$layer_style = array();
		$cnt_style = -1;
		$extension = false;
		
		$general = false;
		$layerlist = false;
		$layer = false;
		$formatlist = false;
		$metadataurl = false;
		$dataurl = false;
		$stylelist = false;
		
		foreach ($values as $element) {
			if(strtoupper($element[tag]) == "VIEWCONTEXT" && $element[type] == "open"){
					$this->wmc_id = $element[attributes]["id"];
					$this->wmc_version = $element[attributes]["version"];
			}
			if(strtoupper($element[tag]) == "GENERAL" && $element[type] == "open"){
			   $general = true;
			}
			if(strtoupper($element[tag]) == "LAYERLIST" && $element[type] == "open"){
			   $layerlist = true;
			}
			if ($general) {
				if(strtoupper($element[tag]) == "WINDOW"){
					$this->wmc_windowWidth = $element[attributes]["width"];
					$this->wmc_windowHeight = $element[attributes]["height"];
				}
				if(strtoupper($element[tag]) == "BOUNDINGBOX"){
					$this->wmc_bBox_SRS = $element[attributes]["SRS"];
					$this->wmc_bBox_minx = $element[attributes]["minx"];
					$this->wmc_bBox_miny = $element[attributes]["miny"];
					$this->wmc_bBox_maxx = $element[attributes]["maxx"];
					$this->wmc_bBox_maxy = $element[attributes]["maxy"];
				}
				if(strtoupper($element[tag]) == "NAME"){
					$this->wmc_name = $element[value];
				}
				if(strtoupper($element[tag]) == "TITLE"){
					$this->wmc_title = $element[value];
				}
				if(strtoupper($element[tag]) == "ABSTRACT"){
					$this->wmc_abstract = $element[value];
				}
				if(strtoupper($element[tag]) == "CONTACTINFORMATION" && $element['type'] == "open"){
					$contactinformation = true;
				}
				if ($contactinformation) {
					if(strtoupper($element[tag]) == "CONTACTPOSITION"){
						$this->wmc_contactposition = $element[value];
					}
					if(strtoupper($element[tag]) == "CONTACTVOICETELEPHONE"){
						$this->wmc_contactvoicetelephone = $element[value];
					}
					if(strtoupper($element[tag]) == "CONTACTFACSIMILETELEPHONE"){
						$this->wmc_contactfacsimiletelephone = $element[value];
					}
					if(strtoupper($element[tag]) == "CONTACTELECTRONICMAILADDRESS"){
						$this->wmc_contactemail = $element[value];
					}
					if(strtoupper($element[tag]) == "CONTACTPERSONPRIMARY" && $element['type'] == "open"){
						$contactpersonprimary = true;
					}
					if ($contactpersonprimary) {
						if(strtoupper($element[tag]) == "CONTACTPERSON"){
							$this->wmc_contactperson = $element[value];
						}
						if(strtoupper($element[tag]) == "CONTACTORGANIZATION"){
							$this->wmc_contactorganization = $element[value];
						}
						if(strtoupper($element[tag]) == "CONTACTPERSONPRIMARY" && $element['type'] == "close"){
							$contactpersonprimary = false;
						}
					}
					if(strtoupper($element[tag]) == "CONTACTADDRESS" && $element['type'] == "open"){
						$contactaddress = true;
					}
					if ($contactaddress) {
						if(strtoupper($element[tag]) == "ADDRESSTYPE"){
							$this->wmc_contactaddresstype = $element[value];
						}
						if(strtoupper($element[tag]) == "ADDRESS"){
							$this->wmc_contactaddress = $element[value];
						}
						if(strtoupper($element[tag]) == "CITY"){
							$this->wmc_contactcity = $element[value];
						}
						if(strtoupper($element[tag]) == "STATEORPROVINCE"){
							$this->wmc_contactstateorprovince = $element[value];
						}
						if(strtoupper($element[tag]) == "POSTCODE"){
							$this->wmc_contactpostcode = $element[value];
						}
						if(strtoupper($element[tag]) == "COUNTRY"){
							$this->wmc_contactcountry = $element[value];
						}
						if(strtoupper($element[tag]) == "CONTACTADDRESS" && $element['type'] == "close"){
							$contactaddress = false;
						}
					}
				}
				if(strtoupper($element[tag]) == "LOGOURL" && $element['type'] == "open"){
					$logourl = true;
					$this->wmc_logourl_width = $element[attributes]["width"];
					$this->wmc_logourl_height = $element[attributes]["height"];
					$this->wmc_logourl_format = $element[attributes]["format"];
				}
				if ($logourl) {
					if(strtoupper($element[tag]) == "LOGOURL" && $element['type'] == "close"){
						$logourl = false;
					}
					if(strtoupper($element[tag]) == "ONLINERESOURCE"){
						$this->wmc_logourl_type = $element[attributes]["xlink:type"];
						$this->wmc_logourl = $element[attributes]["xlink:href"];
					}
				}
				if(strtoupper($element[tag]) == "DESCRIPTIONURL" && $element['type'] == "open"){
					$descriptionurl = true;
					$this->wmc_descriptionurl_format = $element[attributes]["format"];
				}
				if ($descriptionurl) {
					if(strtoupper($element[tag]) == "DESCRIPTIONURL" && $element['type'] == "close"){
						$descriptionurl = false;
					}
					if(strtoupper($element[tag]) == "ONLINERESOURCE"){
						$this->wmc_descriptionurl_type = $element[attributes]["xlink:type"];
						$this->wmc_descriptionurl = $element[attributes]["xlink:href"];
					}
				}
				if(strtoupper($element[tag]) == "KEYWORDLIST" && $element['type'] == "open"){
					$keywordlist = true;
				}
				if ($keywordlist) {
					if(strtoupper($element[tag]) == "KEYWORDLIST" && $element['type'] == "close"){
						$keywordlist = false;
						$cnt_keyword = -1;
					}
					if(strtoupper($element[tag]) == "KEYWORD"){
						$cnt_keyword++;
						$this->wmc_keyword[$cnt_keyword] = $element[value];
					}
				}
						
				if(strtoupper($element[tag]) == "GENERAL" && $element['type'] == "close"){
		   			$general = false;
			 	}
			}
			if ($layerlist) {
				if(strtoupper($element[tag]) == "LAYERLIST" && $element['type'] == "close"){
				   $layerlist = false;
				}
				if(strtoupper($element[tag]) == "LAYER" && $element[type] == "open"){
					 $cnt_layer++;
					 $this->wmc_layer_queryable[$cnt_layer] = $element[attributes]["queryable"];
					 $this->wmc_layer_hidden[$cnt_layer] = $element[attributes]["hidden"];
					 $layer = true;
      		 		 $cnt_epsg = 0;
				}
				if ($layer) {
					if(strtoupper($element[tag]) == "LAYER" && $element[type] == "close"){
						$layer = false;
					}
					 if ($formatlist) {
						 if(strtoupper($element[tag]) == "FORMAT"){
						 	$cnt_format++;
						 	$this->wmc_layer_format_current[$cnt_layer][$cnt_format] = $element[attributes]["current"];
						 	$this->wmc_layer_format[$cnt_layer][$cnt_format] = $element[value];
						 }
						 if(strtoupper($element[tag]) == "FORMATLIST" && $element[type] == "close"){
							 $formatlist = false;
						 }
					 }
					 elseif ($metadataurl) {
						 if(strtoupper($element[tag]) == "ONLINERESOURCE"){
							$this->wmc_layer_metadataurl[$cnt_layer] = $element[attributes]["xlink:href"];
						 }
						 if(strtoupper($element[tag]) == "METADATAURL" && $element[type] == "close"){
							$metadataurl = false;
						 }
					 }
					 elseif ($dataurl) {
						 if(strtoupper($element[tag]) == "ONLINERESOURCE"){
						 	$this->wmc_layer_dataurl[$cnt_layer] = $element[attributes]["xlink:href"];
						 }
						 if(strtoupper($element[tag]) == "DATAURL" && $element[type] == "close"){
							 $dataurl = false;
						 }
					 }
					 elseif ($stylelist) {
						 if(strtoupper($element[tag]) == "STYLE" && $element[type] == "open"){
						 	$cnt_style++;
						 	$style = true;
						 	$this->wmc_layer_style_current[$cnt_layer][$cnt_style] = $element[attributes]["current"];
						 }
						 if ($style) {
							 if(strtoupper($element[tag]) == "STYLE" && $element[type] == "close"){
							 	$style = false;
							 }
							 if(strtoupper($element[tag]) == "SLD" && $element[type] == "open"){
							 	$sld = true;
							 }
							 if ($sld) {
								 if(strtoupper($element[tag]) == "SLD" && $element[type] == "close"){
								 	$sld = false;
								 }
								 if(strtoupper($element[tag]) == "ONLINERESOURCE"){
								 	$this->wmc_layer_style_sld_type[$cnt_layer][$cnt_style] = $element[attributes]["xlink:type"];
								 	$this->wmc_layer_style_sld_url[$cnt_layer][$cnt_style] = $element[attributes]["xlink:href"];
								 }
								 if(strtoupper($element[tag]) == "TITLE"){
								 	$this->wmc_layer_style_sld_title[$cnt_layer][$cnt_style] = $element[value];
								 }
							 }
							 else {
								 if(strtoupper($element[tag]) == "NAME"){
								 	$this->wmc_layer_style_name[$cnt_layer][$cnt_style] = $element[value];
								 }
								 if(strtoupper($element[tag]) == "TITLE"){
								 	$this->wmc_layer_style_title[$cnt_layer][$cnt_style] = $element[value];
								 }
								 if(strtoupper($element[tag]) == "LEGENDURL" && $element[type] == "open"){
								 	$legendurl = true;
								 	$this->wmc_layer_style_legendurl_width[$cnt_layer][$cnt_style] = $element[attributes]["width"];
								 	$this->wmc_layer_style_legendurl_height[$cnt_layer][$cnt_style] = $element[attributes]["height"];
								 	$this->wmc_layer_style_legendurl_format[$cnt_layer][$cnt_style] = $element[attributes]["format"];
								 }
								 if ($legendurl) {
									 if(strtoupper($element[tag]) == "LEGENDURL" && $element[type] == "close"){
									 	$legendurl = false;
									 }
									 if(strtoupper($element[tag]) == "ONLINERESOURCE"){
									 	$this->wmc_layer_style_legendurl_type[$cnt_layer][$cnt_style] = $element[attributes]["xlink:type"];
									 	$this->wmc_layer_style_legendurl[$cnt_layer][$cnt_style] = $element[attributes]["xlink:href"];
									 }
								 }
							 }
						 }
						 if(strtoupper($element[tag]) == "STYLELIST" && $element[type] == "close"){
							 $stylelist = false;
						 }
					 }
					 else {
						 if(strtoupper($element[tag]) == "SERVER" && $element[type] == "open"){
						 	 $server = true;
						 	 $this->wmc_wms_service[$cnt_layer] = $element[attributes]["service"];
						 	 $this->wmc_wms_version[$cnt_layer] = $element[attributes]["version"];
						 	 $this->wmc_wms_title[$cnt_layer] = $element[attributes]["title"];
						 }
						 if ($server) {
							 if(strtoupper($element[tag]) == "SERVER" && $element[type] == "close"){
							 	 $server = false;
							 }
							 if(strtoupper($element[tag]) == "ONLINERESOURCE"){
						 		 $this->wmc_wms_serviceURL[$cnt_layer] = $element[attributes]["xlink:href"];
							 }
						 }
						 if(strtoupper($element[tag]) == "NAME"){
					 		 $this->wmc_layer_name[$cnt_layer] = $element[value];
						 }
						 if(strtoupper($element[tag]) == "TITLE"){
					 		 $this->wmc_layer_title[$cnt_layer] = $element[value];
						 }
						 if(strtoupper($element[tag]) == "ABSTRACT"){
					 		 $this->wmc_layer_abstract[$cnt_layer] = $element[value];
						 }
						 if(strtoupper($element[tag]) == "SRS"){
							 $epsgArray = explode(" ", $element[value]);						 	
					 		 
					 		 for ($c = 0 ; $c < count($epsgArray) ; $c ++) {
						 		 $this->wmc_layer_srs[$cnt_layer][$cnt_epsg] = $epsgArray[$c];
								 $cnt_epsg++;
					 		 }
						 }
						 if (strtoupper($element[tag]) == "EXTENSION" && $element[type] == "open") {
						 	$extension = true;
						 }
						 if (strtoupper($element[tag]) == "EXTENSION" && $element[type] == "close") {
						 	$extension = false;
						 }
						 if($extension == true && strtoupper(sepNameSpace($element[tag])) == "SCALEHINT"){
					 		 $this->wmc_layer_minscale[$cnt_layer] = $element[attributes]["min"];
					 		 $this->wmc_layer_maxscale[$cnt_layer] = $element[attributes]["max"];
						 }
						 if($extension == true && strtoupper(sepNameSpace($element[tag])) == "LAYER_ID"){
					 		 $this->wmc_layer_id[$cnt_layer] = $element[value];
						 }
						 if($extension == true && strtoupper(sepNameSpace($element[tag])) == "WMS_ID"){
					 		 $this->wmc_wms_id[$cnt_layer] = $element[value];
						 }
						 if($extension == true && strtoupper(sepNameSpace($element[tag])) == "QUERYLAYER"){
					 		 $this->wmc_layer_querylayer[$cnt_layer] = $element[value];
						 }
						 if(strtoupper(sepNameSpace($element[tag])) == "METADATAURL" && $element[type] == "open"){
							 $metadataurl = true;
						 }
						 if(strtoupper(sepNameSpace($element[tag])) == "DATAURL" && $element[type] == "open"){
							 $dataurl = true;
						 }
						 if(strtoupper(sepNameSpace($element[tag])) == "FORMATLIST" && $element[type] == "open"){
							 $formatlist = true;
							 $cnt_format = -1;
						 }
						 if(strtoupper(sepNameSpace($element[tag])) == "STYLELIST" && $element[type] == "open"){
							 $stylelist = true;
							 $cnt_style = -1;
						 }
					 }
				}
			}
		}
		return true;
	}

	function createJsObjFromWMC($target, $mapObj, $action){
		$wmc_string = "";
		$validActions = array("load", "merge", "append");
		if (!in_array($action, $validActions)) {
			$wmc_string .= "alert('invalid action: ".$action."');";			
		}
		else {
			$wmc_string .= "var index = " . $target . "getMapObjIndexByName('" . $mapObj . "');\n";
			if ($action == "load") {
				// delete all previous wms
				$wmc_string .= "while(" . $target . "mb_mapObj[index].wms.length > 0){" . $target . "mb_mapObjremoveWMS(index,0);}";
				$wmc_string .= $target . "deleteWmsObject();\n";
			}
			if ($action == "merge") {
				$wmc_string .= "var wms_exists = false;\n";				// true if this wms exists in the mapObj
				$wmc_string .= "var current_wms_index = null;\n";		// if wms_exists: index of the wms in the map obj; else: null
				$wmc_string .= "var layer_exists = false;\n";			// true if this layer exists in an existing wms of the mapObj
				$wmc_string .= "var current_layer_index = null;\n";		// if layer_exists: index of the layer of the wms in the mapObj; else: null
			}
			$new_wms = "";
			$cnt_wms = -1;
			$added_wms = array();
			
			// for all layers in wmc, find individual wms...
			for ($i = 0; $i < count($this->wmc_layer_title); $i++) {
				$current_wms = $this->wmc_wms_serviceURL[$i];
				// ...this is something like 'for every wms'
				if (!in_array($current_wms , $added_wms)) {
					$layerlist = "";
					$querylayerlist = "";
					$srs_array = array();
		
					if ($action == "merge") {
						$wmc_string .= "wms_exists = false;\n";
						$wmc_string .= "current_wms_index = null;\n";
						$wmc_string .= "for (var m=0; m < " . $target . "mb_mapObj[index].wms.length; m++) {\n";
						$wmc_string .= "\tif ('" . $this->wmc_wms_serviceURL[$i] . "' ==  " . $target . "mb_mapObj[index].wms[m].wms_getmap) {\n";
						$wmc_string .= "\t\twms_exists = true;\n";
						$wmc_string .= "\t\tcurrent_wms_index = m;\n";
						$wmc_string .= "\t}\n";
						$wmc_string .= "}\n";
						$wmc_string .= "if (!wms_exists) {\n";
					}				
					 
					$mywms = new wms();
			
			  		if(!$this->wmc_layer_title[$i] || $this->wmc_layer_title[$i] == ""){
						echo "alert('Error: no valid capabilities-document !!');\n";
						die; exit;
					}

					for($j=0;$j<count($this->wmc_layer_format[$i]);$j++){
						if ($this->wmc_layer_format_current[$i][$j] == 1) {
							$wms_data_format = $this->wmc_layer_format[$i][$j];
						}
					}
					// add wms
					$wmc_string .= "\t" . $target . "add_wms('','".
						$this->wmc_wms_version[$i] ."','".
						$this->wmc_wms_title[$i] ."','".
						$this->wmc_layer_abstract[$i] ."','".
						$this->wmc_wms_serviceURL[$i] ."','" .
						$this->wmc_wms_serviceURL[$i] ."','" .
						$this->wmc_layer_style_legendurl[$i][0] ."','','". 
						$wms_data_format ."','text/html','application/vnd.ogc.se_xml','". 
						$this->wmc_bBox_SRS ."','1');\n";
		
					$added_wms[count($added_wms)] = $current_wms;
					$cnt_wms++;
					$cnt_layers = 0;
					$cnt_query_layers = 0;
					if ($action == "merge") {
						$wmc_string .= "}\n";
					}
	
					// add epsg
					$wmc_string .= $target . "wms_addSRS('". 
						$this->wmc_bBox_SRS ."','". 
						$this->wmc_bBox_minx ."','". 
						$this->wmc_bBox_miny ."','". 
						$this->wmc_bBox_maxx ."','". 
						$this->wmc_bBox_maxy ."','". 
						"');\n";

					// for each layer...
					for ($ii = 0; $ii < count($this->wmc_layer_title); $ii++) {
						$layer_wms = $this->wmc_wms_serviceURL[$ii];
						// ... of this wms
						if ($current_wms == $layer_wms) {
							
							// add format (FIXME: is this working?)
							$z = count($this->wmc_layer_format[$ii]);
							for($j=0;$j<$z;$j++){
								$wmc_string .= $target . "wms_add_data_type_format('map','". $this->wmc_layer_format[$ii][$j] ."');\n";
							}
							
							if ($cnt_layers == 0) {
								if ($action == "merge") {
									$wmc_string .= "if (!wms_exists) {\n\t";
								} 
								// add parent layer
								$wmc_string .= $target . "wms_add_layer('','".$this->wmc_layer_id[$i]."','','". $this->wmc_wms_title[$i] ."','','0','0','0','0','','".$this->wmc_wms_id[$i]."','1','1','1','0','0','0','0');\n";
								if ($action == "merge") {
									$wmc_string .= "}\n";
								} 
							}
	
							$cnt_layers++;
							
							if ($action == "merge") {
								$wmc_string .= "if (wms_exists) {\n";
								
								// check if this layer already exists in this wms
								$wmc_string .= "\tlayer_exists = false;\n";
								$wmc_string .= "\tcurrent_layer_index = null;\n";
								$wmc_string .= "\tfor (var m=0; m < " . $target . "mb_mapObj[index].wms[current_wms_index].objLayer.length; m++) {\n";
								$wmc_string .= "\t\tif ('" . $this->wmc_layer_name[$ii] . "' ==  " . $target . "mb_mapObj[index].wms[current_wms_index].objLayer[m].layer_name) {\n";
								$wmc_string .= "\t\t\tlayer_exists = true;\n";
								$wmc_string .= "\t\t\tcurrent_layer_index = m;\n";
								$wmc_string .= "\t\t}\n";
								$wmc_string .= "\t}\n"; 
		
								$wmc_string .= "\tif (layer_exists) {\n";
								// check if the visibility or the queryability are different to the existing layer
								$wmc_string .= "\t\tif (" . $target . "mb_mapObj[index].wms[current_wms_index].objLayer[current_layer_index].gui_layer_visible != '" . intval(!$this->wmc_layer_hidden[$ii]) . "'";
								$wmc_string .= " || " . $target . "mb_mapObj[index].wms[current_wms_index].objLayer[current_layer_index].gui_layer_querylayer != '" . $this->wmc_layer_queryable[$ii] . "') {\n";
		
								// if yes, update the visibility and queryability
								$wmc_string .= "\t\t\t" . $target . "mb_mapObj[index].wms[current_wms_index].objLayer[current_layer_index].gui_layer_visible = " . intval(!$this->wmc_layer_hidden[$ii]) . ";\n"; 
								$wmc_string .= "\t\t\t" . $target . "mb_mapObj[index].wms[current_wms_index].objLayer[current_layer_index].gui_layer_querylayer = " . $this->wmc_layer_queryable[$ii] . ";\n"; 
								$wmc_string .= "\t\t}\n";
								$wmc_string .= "\t}\n"; 
								$wmc_string .= "}\n"; 
								$wmc_string .= "\telse {\n";
							} 

							// add layer
							$wmc_string .= "\t" . $target . "wms_add_layer('0','". 
								$this->wmc_layer_id[$ii] . "','". 
								$this->wmc_layer_name[$ii] . "','". 
								$this->wmc_layer_title[$ii] ."','". 
								$this->wmc_layer_dataurl[$ii] . "','". 
								intval($cnt_layers) ."','". 
								$this->wmc_layer_queryable[$ii] ."','".
								$this->wmc_layer_minscale[$ii]  ."','". 
								$this->wmc_layer_maxscale[$ii]  ."','". 
								$this->wmc_layer_metadataurl[$ii] ."','". 
								$this->wmc_wms_id[$ii] ."','1','1','". 
								intval(!$this->wmc_layer_hidden[$ii]) ."','". 
								$this->wmc_layer_queryable[$ii] ."','". 
								$this->wmc_layer_querylayer[$ii] ."','".
								$this->wmc_layer_minscale[$ii]  ."','". 
								$this->wmc_layer_maxscale[$ii]  ."');\n";
	
							if ($action == "merge") {
								$wmc_string .= "\t}\n";
							} 
												
							// if layer is queryable, add it to querylayerlist
							if ($this->wmc_layer_queryable[$ii]) {
								$cnt_query_layers++;
								if (!in_array($this->wmc_layer_name[$ii], explode(",",$querylayerlist))) {
									if ($querylayerlist == "") {$querylayerlist = $this->wmc_layer_name[$ii];} else {$querylayerlist .= "," . $this->wmc_layer_name[$ii];} 
								}
							}
							// if layer is visible, add it to layerlist 
							if (intval(!$this->wmc_layer_hidden[$ii]) && !in_array($this->wmc_layer_name[$ii], explode(",",$layerlist))) {
								if ($layerlist == "") {$layerlist = $this->wmc_layer_name[$ii];} else {$layerlist .= "," . $this->wmc_layer_name[$ii];}
							}
	
							// add layer style (FIXME: is this working?)
							for($j=0; $j<count($this->wmc_layer_style_name[$ii]);$j++){
								$wmc_string .= $target . "wms_addLayerStyle('".$this->wmc_layer_style_name[$ii][$j] ."','".$this->wmc_layer_style_title[$ii][$j] ."','".$j."','".$cnt_layers."', '" . $this->wmc_layer_style_legendurl[$ii][$j] . "', '" . $this->wmc_layer_style_legendurl_format[$ii][$j] . "');\n";
							}
						}
					}
					// add wms to mapObj with all layers and querylayers
					if ($action == "merge") {
						$wmc_string .= "if (!wms_exists) {\n";
					} 
					$wmc_string .= $target. "mb_mapObjaddWMSwithLayers('" . $mapObj . "', '" . $layerlist . "', '" . $querylayerlist . "');\n";
					if ($action == "merge") {
						$wmc_string .= "}\n";
						$wmc_string .= "else {\n";
						$wmc_string .= $target. "mb_mapObj[index].layers[current_wms_index] = \"" . $layerlist . "\";\n";
						$wmc_string .= $target. "mb_mapObj[index].querylayers[current_wms_index] = \"" . $querylayerlist . "\";\n";
						$wmc_string .= "}\n";
					}
				}
			}
			$wmc_string .= "var old_mapObj = ".$target."cloneObject(".$target."mb_mapObj);\n";
			$wmc_string .= $target . "deleteMapObj();\n";
			$wmc_string .= "for (var i=0; i<old_mapObj.length; i++) {\n";
			$wmc_string .= "\tif (old_mapObj[i].frameName != 'overview') {\n";
			$wmc_string .= "\t\t" . $target . "mb_registerMapObj(old_mapObj[i].frameName, old_mapObj[i].elementName, null, " . $this->wmc_windowWidth . ", " . $this->wmc_windowHeight . ");\n"; 
			$wmc_string .= "\t\t" . $target . "document.getElementById(old_mapObj[i].frameName).style.width = " . $this->wmc_windowWidth . ";\n";
			$wmc_string .= "\t\t" . $target . "document.getElementById(old_mapObj[i].frameName).style.height = " . $this->wmc_windowHeight . ";\n";
			$wmc_string .= "\t}\n";
			$wmc_string .= "\telse {\n";
			$wmc_string .= "\t\tvar found = false;\n";
			$wmc_string .= "\t\tfor (var j=0; j < " . $target . "wms.length && found == false; j++) {\n";
			$wmc_string .= "\t\t\tif (" . $target . "wms[j].wms_getmap == old_mapObj[i].wms[0].wms_getmap) {\n";
			$wmc_string .= "\t\t\t\t" . $target . "mb_registerMapObj('overview', old_mapObj[i].elementName, j, old_mapObj[i].width,  old_mapObj[i].height);\n"; 
			$wmc_string .= "\t\t\t\tfound = true;\n"; 
			$wmc_string .= "\t\t\t}\n";
			$wmc_string .= "\t\t}\n";
			$wmc_string .= "\t\tif (!found) {\n";
			$wmc_string .= "\t\t\t" . $target . "mb_registerMapObj('overview', old_mapObj[i].elementName, 0, old_mapObj[i].width,  old_mapObj[i].height);\n"; 
			$wmc_string .= "\t\t}\n";
			$wmc_string .= "\t}\n";
			$wmc_string .= "}\n";
			
			$sql = "SELECT minx, miny, maxx, maxy FROM layer_epsg WHERE fkey_layer_id = $1 AND epsg = $2 LIMIT 1";
			$v = array($this->wmc_layer_id[0], $this->wmc_bBox_SRS);
			$t = array('i', 's');
			$res = db_prep_query($sql, $v, $t);
			$row = db_fetch_array($res);
			if ($row["minx"] && $row["miny"] && $row["maxx"] && $row["maxy"]) {
				$ov_bbox = array($row["minx"],$row["miny"],$row["maxx"],$row["maxy"]);
			}
			else if ($this->wmc_layer_id[0] && $this->wmc_bBox_SRS){
				$ov_bbox = array($this->wmc_bBox_minx, $this->wmc_bBox_miny, $this->wmc_bBox_maxx, $this->wmc_bBox_maxy);
			}
			else {
				$ov_bbox = array();
			}
			$wmc_string .= "for (var i=0; i<old_mapObj.length; i++) {\n";
			$wmc_string .= "\tif (old_mapObj[i].frameName != 'overview') {\n";
			$wmc_string .= "\t\t".$target."mb_calculateExtent(old_mapObj[i].frameName, ";
			$wmc_string .= $this->wmc_bBox_minx .",".$this->wmc_bBox_miny .",";
			$wmc_string .= $this->wmc_bBox_maxx .",".$this->wmc_bBox_maxy.");\n";
			$wmc_string .= "\t}\n";
			$wmc_string .= "\telse {\n";
			if (count($ov_bbox)>0) {
//				$wmc_string .= "alert('found bbox for ov: ".implode(',',$ov_bbox)."');";
				$wmc_string .= "\t\t".$target."mb_calculateExtent(old_mapObj[i].frameName, ";
				$wmc_string .= $ov_bbox[0] .",".$ov_bbox[1] .",";
				$wmc_string .= $ov_bbox[2] .",".$ov_bbox[3] .");\n";
			}
			else {
//				$wmc_string .= "alert('no bbox found for ov: old bbox ".$this->wmc_bBox_minx." etc');";
				$wmc_string .= "\t\t".$target."mb_calculateExtent(old_mapObj[i].frameName, ";
				$wmc_string .= $this->wmc_bBox_minx .",".$this->wmc_bBox_miny .",";
				$wmc_string .= $this->wmc_bBox_maxx .",".$this->wmc_bBox_maxy.");\n";
//				$wmc_string .= "\t\tvar ov_index = " . $target . "getMapObjIndexByName('overview');\n";
//				$wmc_string .= "\t\t" . $target . "mb_mapObj[ov_index].extent = old_mapObj[i].extent;\n"; 
			}
			$wmc_string .= "\t}\n";
			$wmc_string .= "\t". $target . "setMapRequest(old_mapObj[i].frameName);\n";
			$wmc_string .= "}\n";
			$wmc_string .= $target . "mb_execloadWmsSubFunctions();\n";
		}
		return $wmc_string;
	}
} 
// end class
?>