var gdir;
var geocoder = null;
    	
//la carte
var map = null;
var wgs84X="";
var wgs84Y="";

var map_endinit=false;


function wheelevent(e)
{
    if (!e){
    e = window.event
    }
    if (e.preventDefault){
    e.preventDefault()
    }
    e.returnValue = false;
}







function setDirections(fromAddress, toAddress, locale)
{
	//alert(fromAddress);
	gdir.load("from: " + fromAddress + " to: " + toAddress,{ "locale": locale });
}

function handleErrors()
{
   if (gdir.getStatus().code == G_GEO_UNKNOWN_ADDRESS)
     alert("Impossible de trouver votre adresse, merci de vérifier vos informations saisies.\nError code: " + gdir.getStatus().code);
   else if (gdir.getStatus().code == G_GEO_SERVER_ERROR)
     alert("A geocoding or directions request could not be successfully processed, yet the exact reason for the failure is not known.\n Error code: " + gdir.getStatus().code);
   
   else if (gdir.getStatus().code == G_GEO_MISSING_QUERY)
     alert("The HTTP q parameter was either missing or had no value. For geocoder requests, this means that an empty address was specified as input. For directions requests, this means that no query was specified in the input.\n Error code: " + gdir.getStatus().code);

//   else if (gdir.getStatus().code == G_UNAVAILABLE_ADDRESS)  <--- Doc bug... this is either not defined, or Doc is wrong
//     alert("The geocode for the given address or the route for the given directions query cannot be returned due to legal or contractual reasons.\n Error code: " + gdir.getStatus().code);
     
   else if (gdir.getStatus().code == G_GEO_BAD_KEY)
     alert("The given key is either invalid or does not match the domain for which it was given. \n Error code: " + gdir.getStatus().code);

   else if (gdir.getStatus().code == G_GEO_BAD_REQUEST)
     alert("A directions request could not be successfully parsed.\n Error code: " + gdir.getStatus().code);
    
   else alert("An unknown error occurred.");
   
}


function createMarker(logo,wgs84x,wgs84y,titre,infos)
{
 	var tmp  = new GIcon();
    tmp.image=logo;
   // tmp.iconSize=new GSize(128,48);
    tmp.iconAnchor = new GPoint(0, 48);//
    tmp.infoWindowAnchor = new GPoint(0, 48);//128/2
    //
    var point = new GLatLng(wgs84y,wgs84x);
    var marker = new GMarker(point,{title:titre,draggable:false,icon:tmp,bouncy:false});
   if(infos!='')
    GEvent.addListener(marker, 'click', function()
    {
        map.openInfoWindowHtml(point,infos);
    }
    );
    return marker;
}


function loadGMap()
{

    try
    {
        map = new GMap2(document.getElementById("map"));
    }
    catch (ex)
    {
        alert("vous devez etre connecte a l'internet pour utiliser ce module...");
    }
    if (map != null)
    {
    
    
	    gdir = new GDirections(map, document.getElementById("directions"));
       //GEvent.addListener(gdir, "load", onGDirectionsLoad);
        GEvent.addListener(gdir, "error", handleErrors);

        
    
        //ajoute le visuel courbe niveau
        map.addMapType(G_PHYSICAL_MAP);
        //
        
        //Centrer la carte sur "Paris La Défense" : zoom = 15
       // map.setCenter(point , 15);
        new GKeyboardHandler(map);//flèches clavier activées
        //map.addControl(new GLargeMapControl());//Zoom
        map.addControl(new GLargeMapControl3D());
        
        map.addControl(new GMapTypeControl());//Type de carte
       
        
        map.addControl(new GOverviewMapControl());//Aperçu général
        
        
        map.setCenter(new GLatLng(initWGS84Y,initWGS84X) , initzoomlevel);
        
        map.setMapType(G_PHYSICAL_MAP);
           
        
		for(var i=0;i<pois.length;i++)
		{
		
		    map.addOverlay(createMarker(pois[i][0],pois[i][2],pois[i][1],pois[i][3],pois[i][4]));
		}
	
  
        //Enregistrer l'événement 'clic' de la carte
        GEvent.addListener(map, 'click', function(overlay,point)
	        {
	            //si on clique sur la carte uniquement
	            if(overlay==null)
	            {
	                var latLngStr = 'latitude-longitude';
	                 wgs84X = point.x;
	                 wgs84Y = point.y;
	                if (point){latLngStr = '(' + wgs84X + ', ' + wgs84Y + ') ';}
	                var coordonnees = document.getElementById("coordonnees");
	                coordonnees.innerHTML = latLngStr;
	            }
	        }
        );
        
        
        
        //on a fini de charger la carte
        map_endinit=true;
    }
    
    
    
}

///prevent page scroll

function GetMapConfig()
{
	var latLngStr='';
	var point = map.getCenter();
	wgs84X=point.x;
	wgs84Y=point.y;
	if (point){
		latLngStr = '(' + wgs84X + ', ' + wgs84Y + ') ';
		latLngStr = '(' + wgs84X + ', ' + wgs84Y + ') ZoomLevel'+map.getZoom();
	}
	var coordonnees = document.getElementById("coordonnees");
	coordonnees.innerHTML = latLngStr;
}