/*--------------------------------------------------|

| dTree 2.05 | www.destroydrop.com/javascript/tree/ |

|---------------------------------------------------|

| Copyright (c) 2002-2003 Geir Landrö               |

|                                                   |

| This script can be used freely as long as all     |

| copyright messages are intact.                    |

|                                                   |

| Updated: 17.04.2003                               |

|--------------------------------------------------*/

// Node object

function Node(id, pid, name, url, title, target, icon, iconOpen, open) {

	this.id = id;

	this.pid = pid;

	this.name = name;

	this.url = url;

	this.title = title;

	this.target = target;

	this.icon = icon;

	this.iconOpen = iconOpen;

	this._io = open || false;

	this._is = false;

	this._ls = false;

	this._hc = false;

	this._ai = 0;

	this._p;

};



// Tree object

function dTree(objName) {

	this.config = {

		target					: null,

		folderLinks			: true,

		useSelection		: true,

		useCookies			: true,

		useLines				: true,

		useIcons				: true,

		useStatusText		: false,

		closeSameLevel	: false,

		inOrder					: false

	}

	this.icon = {

		root				: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/layers.gif',

		folder			: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/folder.gif',

		folderOpen	: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/folderopen.gif',

		node				: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/nix.gif',

		empty				: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/empty.gif',

		line				: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/line.gif',

		join				: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/join.gif',

		joinBottom	: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/joinbottom.gif',

		plus				: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/plus.gif',

		plusBottom	: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/plusbottom.gif',

		minus				: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/minus.gif',

		minusBottom	: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/minusbottom.gif',

		nlPlus			: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/nolines_plus.gif',

		nlMinus			: protocolName + '//' + hostName +'/'+ serviceName +'/img/layer_img/nolines_minus.gif'

	};

	this.obj = objName;

	this.aNodes = [];

	this.aIndent = [];

	this.root = new Node(-1);

	this.selectedNode = null;

	this.selectedFound = false;

	this.completed = false;

};



// Adds a new node to the node array

dTree.prototype.add = function(id, pid, name, url, title, target, icon, iconOpen, open) {

	this.aNodes[this.aNodes.length] = new Node(id, pid, name, url, title, target, icon, iconOpen, open);

};



// Open/close all nodes

dTree.prototype.openAll = function() {

	this.oAll(true);

};

dTree.prototype.closeAll = function() {

	this.oAll(false);

};



// Outputs the tree to the page

dTree.prototype.toString = function() {

	var str = '<div class="dtree">\n';

	if (document.getElementById) {

		if (this.config.useCookies) this.selectedNode = this.getSelected();

		str += this.addNode(this.root);

	} else str += 'Browser not supported.';

	str += '</div>';

	if (!this.selectedFound) this.selectedNode = null;

	this.completed = true;

	return str;

};



// Creates the tree structure

dTree.prototype.addNode = function(pNode) {

	var str = '';

	var n=0;

	if (this.config.inOrder) n = pNode._ai;

	for (n; n<this.aNodes.length; n++) {

		if (this.aNodes[n].pid == pNode.id) {

			var cn = this.aNodes[n];

			cn._p = pNode;

			cn._ai = n;

			this.setCS(cn);

			if (!cn.target && this.config.target) cn.target = this.config.target;

			if (cn._hc && !cn._io && this.config.useCookies) cn._io = this.isOpen(cn.id);

			if (!this.config.folderLinks && cn._hc) cn.url = null;

			if (this.config.useSelection && cn.id == this.selectedNode && !this.selectedFound) {

					cn._is = true;

					this.selectedNode = n;

					this.selectedFound = true;

			}

			str += this.node(cn, n);

			if (cn._ls) break;

		}

	}

	return str;

};



// Creates the node icon, url and text

dTree.prototype.node = function(node, nodeId) {

	var str = '<div class="dTreeNode">' + this.indent(node, nodeId);

	if (this.config.useIcons) {

		if (!node.icon) node.icon = (this.root.id == node.pid) ? this.icon.root : ((node._hc) ? this.icon.folder : this.icon.node);

		if (!node.iconOpen) node.iconOpen = (node._hc) ? this.icon.folderOpen : this.icon.node;

		if (this.root.id == node.pid) {

			node.icon = this.icon.root;

			node.iconOpen = this.icon.root;

		}

		str += '<img id="i' + this.obj + nodeId + '" src="' + ((node._io) ? node.iconOpen : node.icon) + '" alt="" />';

	}

	if (node.url) {

		str += '<a id="s' + this.obj + nodeId + '" class="' + ((this.config.useSelection) ? ((node._is ? 'nodeSel' : 'node')) : 'node') + '" href="' + node.url + '"';

		if (node.title) str += ' title="' + node.title + '"';

		if (node.target) str += ' target="' + node.target + '"';

		if (this.config.useStatusText) str += ' onmouseover="window.status=\'' + node.name + '\';return true;" onmouseout="window.status=\'\';return true;" ';

		if (this.config.useSelection && ((node._hc && this.config.folderLinks) || !node._hc))

			str += ' onclick="javascript: ' + this.obj + '.s(' + nodeId + ');"';

		str += '>';

	}

	else if ((!this.config.folderLinks || !node.url) && node._hc && node.pid != this.root.id)

		str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');" class="node">';

	str += node.name;

	if (node.url || ((!this.config.folderLinks || !node.url) && node._hc)) str += '</a>';

	str += '</div>';

	if (node._hc) {

		str += '<div id="d' + this.obj + nodeId + '" class="clip" style="display:' + ((this.root.id == node.pid || node._io) ? 'block' : 'none') + ';">';

		str += this.addNode(node);

		str += '</div>';

	}

	this.aIndent.pop();

	return str;

};



// Adds the empty and line icons

dTree.prototype.indent = function(node, nodeId) {

	var str = '';

	if (this.root.id != node.pid) {

		for (var n=0; n<this.aIndent.length; n++)

			str += '<img src="' + ( (this.aIndent[n] == 1 && this.config.useLines) ? this.icon.line : this.icon.empty ) + '" alt="" />';

		(node._ls) ? this.aIndent.push(0) : this.aIndent.push(1);

		if (node._hc) {

			str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');"><img id="j' + this.obj + nodeId + '" src="';

			if (!this.config.useLines) str += (node._io) ? this.icon.nlMinus : this.icon.nlPlus;

			else str += ( (node._io) ? ((node._ls && this.config.useLines) ? this.icon.minusBottom : this.icon.minus) : ((node._ls && this.config.useLines) ? this.icon.plusBottom : this.icon.plus ) );

			str += '" alt="" /></a>';

		} else str += '<img src="' + ( (this.config.useLines) ? ((node._ls) ? this.icon.joinBottom : this.icon.join ) : this.icon.empty) + '" alt="" />';

	}

	return str;

};



// Checks if a node has any children and if it is the last sibling

dTree.prototype.setCS = function(node) {

	var lastId;

	for (var n=0; n<this.aNodes.length; n++) {

		if (this.aNodes[n].pid == node.id) node._hc = true;

		if (this.aNodes[n].pid == node.pid) lastId = this.aNodes[n].id;

	}

	if (lastId==node.id) node._ls = true;

};



// Returns the selected node

dTree.prototype.getSelected = function() {

	var sn = this.getCookie('cs' + this.obj);

	return (sn) ? sn : null;

};



// Highlights the selected node

dTree.prototype.s = function(id) {

	if (!this.config.useSelection) return;

	var cn = this.aNodes[id];

	if (cn._hc && !this.config.folderLinks) return;

	if (this.selectedNode != id) {

		if (this.selectedNode || this.selectedNode==0) {

			//eOld = document.getElementById("s" + this.obj + this.selectedNode);

			//eOld.className = "node";

		}

		//eNew = document.getElementById("s" + this.obj + id);

		//eNew.className = "nodeSel";

		this.selectedNode = id;

		if (this.config.useCookies) this.setCookie('cs' + this.obj, cn.id);

	}

};



// Toggle Open or close

dTree.prototype.o = function(id) {

	var cn = this.aNodes[id];

	this.nodeStatus(!cn._io, id, cn._ls);

	cn._io = !cn._io;

	if (this.config.closeSameLevel) this.closeLevel(cn);

	if (this.config.useCookies) this.updateCookie();

};



// Open or close all nodes

dTree.prototype.oAll = function(status) {

	for (var n=0; n<this.aNodes.length; n++) {

		if (this.aNodes[n]._hc && this.aNodes[n].pid != this.root.id) {

			this.nodeStatus(status, n, this.aNodes[n]._ls)

			this.aNodes[n]._io = status;

		}

	}

	if (this.config.useCookies) this.updateCookie();

};



// Opens the tree to a specific node

dTree.prototype.openTo = function(nId, bSelect, bFirst) {

	if (!bFirst) {

		for (var n=0; n<this.aNodes.length; n++) {

			if (this.aNodes[n].id == nId) {

				nId=n;

				break;

			}

		}

	}

	var cn=this.aNodes[nId];

	if (cn.pid==this.root.id || !cn._p) return;

	cn._io = true;

	cn._is = bSelect;

	if (this.completed && cn._hc) this.nodeStatus(true, cn._ai, cn._ls);

	if (this.completed && bSelect) this.s(cn._ai);

	else if (bSelect) this._sn=cn._ai;

	this.openTo(cn._p._ai, false, true);

};



// Closes all nodes on the same level as certain node

dTree.prototype.closeLevel = function(node) {

	for (var n=0; n<this.aNodes.length; n++) {

		if (this.aNodes[n].pid == node.pid && this.aNodes[n].id != node.id && this.aNodes[n]._hc) {

			this.nodeStatus(false, n, this.aNodes[n]._ls);

			this.aNodes[n]._io = false;

			this.closeAllChildren(this.aNodes[n]);

		}

	}

}



// Closes all children of a node

dTree.prototype.closeAllChildren = function(node) {

	for (var n=0; n<this.aNodes.length; n++) {

		if (this.aNodes[n].pid == node.id && this.aNodes[n]._hc) {

			if (this.aNodes[n]._io) this.nodeStatus(false, n, this.aNodes[n]._ls);

			this.aNodes[n]._io = false;

			this.closeAllChildren(this.aNodes[n]);		

		}

	}

}



// Change the status of a node(open or closed)

dTree.prototype.nodeStatus = function(status, id, bottom) {

	eDiv	= document.getElementById('d' + this.obj + id);

	eJoin	= document.getElementById('j' + this.obj + id);

	if (this.config.useIcons) {

		eIcon	= document.getElementById('i' + this.obj + id);

		eIcon.src = (status) ? this.aNodes[id].iconOpen : this.aNodes[id].icon;

	}

	eJoin.src = (this.config.useLines)?

	((status)?((bottom)?this.icon.minusBottom:this.icon.minus):((bottom)?this.icon.plusBottom:this.icon.plus)):

	((status)?this.icon.nlMinus:this.icon.nlPlus);

	eDiv.style.display = (status) ? 'block': 'none';

};





// [Cookie] Clears a cookie

dTree.prototype.clearCookie = function() {

	var now = new Date();

	var yesterday = new Date(now.getTime() - 1000 * 60 * 60 * 24);

	this.setCookie('co'+this.obj, 'cookieValue', yesterday);

	this.setCookie('cs'+this.obj, 'cookieValue', yesterday);

};



// [Cookie] Sets value in a cookie

dTree.prototype.setCookie = function(cookieName, cookieValue, expires, path, domain, secure) {

	document.cookie =

		escape(cookieName) + '=' + escape(cookieValue)

		+ (expires ? '; expires=' + expires.toGMTString() : '')

		+ (path ? '; path=' + path : '')

		+ (domain ? '; domain=' + domain : '')

		+ (secure ? '; secure' : '');

};



// [Cookie] Gets a value from a cookie

dTree.prototype.getCookie = function(cookieName) {

	var cookieValue = '';

	var posName = document.cookie.indexOf(escape(cookieName) + '=');

	if (posName != -1) {

		var posValue = posName + (escape(cookieName) + '=').length;

		var endPos = document.cookie.indexOf(';', posValue);

		if (endPos != -1) cookieValue = unescape(document.cookie.substring(posValue, endPos));

		else cookieValue = unescape(document.cookie.substring(posValue));

	}

	return (cookieValue);

};



// [Cookie] Returns ids of open nodes as a string

dTree.prototype.updateCookie = function() {

	var str = '';

	for (var n=0; n<this.aNodes.length; n++) {

		if (this.aNodes[n]._io && this.aNodes[n].pid != this.root.id) {

			if (str) str += '.';

			str += this.aNodes[n].id;

		}

	}

	this.setCookie('co' + this.obj, str);

};



// [Cookie] Checks if a node id is in a cookie

dTree.prototype.isOpen = function(id) {

	var aOpen = this.getCookie('co' + this.obj).split('.');

	for (var n=0; n<aOpen.length; n++)

		if (aOpen[n] == id) return true;

	return false;

};



// If Push and pop is not implemented by the browser

if (!Array.prototype.push) {

	Array.prototype.push = function array_push() {

		for(var i=0;i<arguments.length;i++)

			this[this.length]=arguments[i];

		return this.length;

	}

};

if (!Array.prototype.pop) {

	Array.prototype.pop = function array_pop() {

		lastElement = this[this.length-1];

		this.length = Math.max(this.length-1,0);

		return lastElement;

	}

};

/*
---------------------------------------------------------------------------------------------------------------------
Netgis Mapserver Client extended functions
---------------------------------------------------------------------------------------------------------------------
*/

//folder2layer checkbox-check
function checkAll(pid){
	var layer = winLeft.$$('input.'+pid);
	var multilayer = winLeft.$(pid);
	var count = 0;
	for (var i=0, n=layer.length; i < n; i++){
		if (layer[i].checked){count ++};
		}
	for (var j=0, m=layer.length; j < m; j++){
		if (count < layer.length) {				
			layer[j].checked = true;
			multilayer.checked = true;
						
			}
		if (count == layer.length) {
			layer[j].checked = false;
			multilayer.checked = false;	
			}
		}
		writeLayerstring();
}

//layer2folder checkbox-check
function checkLayer(pid,wl){
	var layer = winLeft.$$('input.'+pid);
	if (winLeft.$(pid)){var multilayer = winLeft.$(pid);}
	var count = 0;
	for (var i=0, n=layer.length; i < n; i++){
		if (layer[i].checked){count ++};
		}
	for (var j=0, m=layer.length; j < m; j++){
		if (count < layer.length) {				
			if(winLeft.$(pid)){	multilayer.checked = false;}
			}	
		else if (count == layer.length){
			if(winLeft.$(pid)){	multilayer.checked = true;}
			}
		}
		//Wenn wl = true wird string neu geschrieben, ansonsten wird nur Folderaktivierung überprüft und ggf angepaßt
		if(wl==true){
		writeLayerstring();	
		}		
}

//Layerstring mit Kommaseperatoren in dataFrame schreiben bzw. aktualisieren
function writeLayerstring(){
	 var layer = winLeft.document.getElementsByName('layer');
	 var str = "";
	 	for (var i=0, n=layer.length; i < n; i++){
		if (layer[i].checked){str += "," + layer[i].value};
		}
		var layerstr = str.substring(1,str.length);
		
		if (winMap.$("loadimgId")){
			if (winMap.$("loadimgId").complete) {
				winData.$("layerstringId").value = layerstr;
				winMap.$("layersId").value = layerstr;
				//Wenn mode = query auf zoommodus setzen
				//if (winMap.$("getmodeId").value == "query") {winMap.setMode('zoomin')};
				//Mapserver abschicken
				winMap.changeDim();
			}
		}
		else {
		return 0;
		}
}


//Layer überprüfen ob aktiviert und zoomstatus
function checkLayerstring(){
		var layer = winLeft.document.getElementsByName('layer');
		var checkLayerarray = winData.$("layerstringId").value.split(',');
		var simg = "";
		var layerscale = winTop.$('realscaleId').value *1;
		var maxval = 0;
		var minval = 0;
		for (var i=0, n=layer.length; i < n; i++){
			//prüfen ob max und minscale ausserhalb des aktuellen Maßstabs, icons setzen
			simg = "scaleicon_" + layer[i].id;		
			maxval = winLeft.$("maxscale_" + layer[i].id).value*1;
			minval = winLeft.$("minscale_" + layer[i].id).value*1;
			if (maxval == 0 && minval == 0 || maxval > layerscale && minval < layerscale){
			winLeft.$(simg).src = "img/layer_img/nix.gif";
			}
			else if (maxval > layerscale && minval > layerscale){
			winLeft.$(simg).src = "img/layer_img/scaleminus.gif";
			winLeft.$(simg).alt = "Zoomen Sie weiter heraus, die Ebene ist ab dem Massstab 1:" +minval+" sichtbar";
			winLeft.$(simg).title = "Zoomen Sie weiter heraus, die Ebene ist ab dem Massstab 1:" +minval+" sichtbar";
			}
			else if (maxval < layerscale  && minval < layerscale){
			winLeft.$(simg).src = "img/layer_img/scaleplus.gif";
			winLeft.$(simg).alt = "Zoomen Sie weiter hinein, die Ebene ist ab dem Massstab 1:" +maxval+" sichtbar";
			winLeft.$(simg).title = "Zoomen Sie weiter hinein, die Ebene ist ab dem Massstab 1:" +maxval+" sichtbar";
			}		
			//prüfen ob layer in layerarray vorkommt, wenn ja checken
			if (checkLayerarray.indexOf(layer[i].value) != -1){
			layer[i].checked = true;	
			}
			else{
			layer[i].checked = false;
			}
			//folder überprüfen, abernicht neuen layerstring schreiben
			checkLayer(layer[i].className,false);
		}//end for
		checkActivelayer();
}

function checkActivelayer(){
//Active Layer markieren
		if (winData.$("activelayerId").value != ""){
			var infoicons = winLeft.document.getElementsByName('infoicon');
			var infoId = winData.$("activelayerId").value + "infoId";
			for (var j=0, m=infoicons.length; j < m; j++){
			infoicons[j].src = "img/layer_img/info.gif";
			}		
			winLeft.$(infoId).src = "img/layer_img/info1.gif";
		}
		else {
		return 0;
		}
}

//Einzellkayer mit aktivieren wenn noch nicht sichtbar
function toggleSinglelayer(mylayer,status){
  var layers = winMap.$("layersId").value.split(",");	
	if (layers.indexOf(mylayer) == -1 && status == "on" ){		
		layers.push(mylayer);
	}
	else if (status == "off"){
		layers = layers.without(mylayer);
	}
	else {
	return 0;
	}
	winMap.$("layersId").value = layers.join(",");
}


//Einzellkayer aktivieren (mylayers sind alle gewünschten Layer kommasepariert
function singleLayeron(mylayers){
  var layers = winMap.$("layersId").value.split(",");
  var mylayersarr = mylayers.split(",");
  var count = 0;
	for (var i=0, n=mylayersarr.length; i < n; i++){  
		if (layers.indexOf(mylayersarr[i]) == -1){		
			layers.push(mylayersarr[i]);
			winMap.$("layersId").value = layers.join(",");
			count = count +1;
		}
	}
	if (count>0){
	winMap.changeScale();
	}
	else {
	return 0;
	}
}

//Einzellkayer abschalten (mylayers sind alle gewünschten Layer kommasepariert
function singleLayeroff(mylayers){
  var layers = winMap.$("layersId").value.split(",");
  var mylayersarr = mylayers.split(",");
  var count = 0;
    for (var i=0, n=mylayersarr.length; i < n; i++){  
		if (layers.indexOf(mylayersarr[i]) != -1){		
			layers = layers.without(mylayersarr[i]);
			winMap.$("layersId").value = layers.join(",");
			count = count +1;
		}
    }
   	if (count>0){
	winMap.changeScale();
	}
	else {
	return 0;
	}
}

//Einzellkayer abschalten
function singleLayeronoff(mylayer){
  var layers = winMap.$("layersId").value.split(",");	
	if (layers.indexOf(mylayer) != -1){		
		layers = layers.without(mylayer);
		winMap.$("layersId").value = layers.join(",");
		winMap.changeScale();
	}
	else if (layers.indexOf(mylayer) == -1){		
		layers.push(mylayer);
		winMap.$("layersId").value = layers.join(",");
		winMap.changeScale();
	}
	else {
	return 0;
	}
}

//mehrere Layer aktivieren, sind alle schon aktiviert, werden alle deaktiviert (mylayers sind alle gewünschten Layer kommasepariert)
function manyLayeronoff(mylayers){
  var layers = winMap.$("layersId").value.split(",");
  var mylayersarr = mylayers.split(",");
  var count = 0;
	for (var i=0, n=mylayersarr.length; i < n; i++){  
		if (layers.indexOf(mylayersarr[i]) == -1){		
			layers.push(mylayersarr[i]);
			winMap.$("layersId").value = layers.join(",");
			count = count +1;
		}
	}
	if (count>0){
	winMap.changeScale();
	}
	else {
		singleLayeroff(mylayers);
	}
}

//Umschalten auf Schrägansichten
function showBlom(mylayer){
	var isblomlayer = winMap.$('layersId').value;
	winMap.$('layersId').value = mylayer + ",blom_uebersicht";
	winMap.setMode("pan");
	//Nur hineinzoomen falls noch keine Ansicht geladen
	if (isblomlayer != "blom_north,blom_uebersicht" && isblomlayer != "blom_south,blom_uebersicht" && isblomlayer != "blom_east,blom_uebersicht" && isblomlayer != "blom_west,blom_uebersicht"){
	winTop.$("realscaleId").value = 600;
	winMap.changetopScale();
	}
	//ansonsten nur neu laden (im aktuellen Maßstab)
	else {
	winMap.changeScale();
	}
}

function checkBlom(blomdir){
	if (winLeft.$("blomId")){
		winLeft.location.href = "" + protocolName + "//" + hostName +"/"+ serviceName +"/mod_blom/blom.php?blomdir="+blomdir;
	}
	else{
	return 0;
	}
}

//Querylayer ändern
function changeQuerylayer(layer){
	winMap.$("qlayerId").value = layer;
	winData.$("activelayerId").value = layer;
	if(winLeft.document.getElementById("winleftId")){
	checkActivelayer();
	}
}

//Basislayer checken (Funktion wird im linken Frame aufgerufen und dynamisch generiert)
function checkMainLayer(){
    if(winMainlayer.$("changeMainId")){
		winMainlayer.startcheckMainLayer();
	}
}

//Layerbelegung in Map bzw. Dataframe mit Layerbaum abgleichen
function checkLayerMap(){    
	winData.$("layerstringId").value = winMap.$("layersId").value;
	if(winLeft.document.getElementById("winleftId")){
		checkLayerstring();
	}
	if(winLeft.document.getElementById("winleftboxId")){
		checkBox();
	}
}

//Checkboxen überprüfen (POI-Modul)
function checkBox(){
	var layer = winLeft.document.getElementsByName('layer');
	var checkLayerarray = winData.$("layerstringId").value.split(',');	
	//prüfen ob layer in layerarray vorkommt, wenn ja checken
	for (var i=0, n=layer.length; i < n; i++){
	if (checkLayerarray.indexOf(layer[i].value) != -1){
		layer[i].checked = true;	
		}
		else{
		layer[i].checked = false;
		}
	}	
}