/**
 * @author Marco Alionso Ramirez, marco@onemarco.com
 * @version 1.0
 * The Tooltip class is an addon designed for the Google
 * Maps GMarker class.
 */

/**
 * @constructor
 * @param {GMarker} marker
 * @param {String} text
 * @param {Number} padding
 */
function Tooltip(marker, text, padding){
	this.marker_ = marker;
	this.text_ = text;
	this.padding_ = padding;
}

Tooltip.prototype = new GOverlay();

Tooltip.prototype.initialize = function(map){
	var div = document.createElement("div");
	//div.appendChild(document.createTextNode(this.text_)); Folgendes ist fuer Html geeignet:
	div.innerHTML= this.text_;
	div.className = 'tooltip';
	div.style.position = 'absolute';
	div.style.visibility = 'hidden';
	//map.getPane(G_MAP_FLOAT_PANE).appendChild(div);
	document.body.appendChild(div);
	this.map_ = map;
	this.div_ = div;
}

Tooltip.prototype.remove = function(){
	this.div_.parentNode.removeChild(this.div_);
}

Tooltip.prototype.copy = function(){
	return new Tooltip(this.marker_,this.text_,this.padding_);
}

Tooltip.prototype.redraw = function(force){

	var markerPos = calculateMarkerPosition( this.map_, this.marker_.getPoint() );

	try {
		var iconAnchor = this.marker_.getIcon().iconAnchor;
		var xPos = Math.round(markerPos.left - this.div_.clientWidth / 2);
		var yPos = markerPos.top - iconAnchor.y - this.div_.clientHeight - this.padding_;		
		this.div_.style.top = yPos + 'px';
		this.div_.style.left = xPos + 'px';
		//this.div_.style.display = "block";
	} catch(e) {
		//alert(e);
	}
	
}

Tooltip.prototype.show = function(){
	this.div_.style.visibility = 'visible';
}

Tooltip.prototype.hide = function(){
	this.div_.style.visibility = "hidden";
}