/**
 * @author Marco Alionso Ramirez, marco@onemarco.com
 * @url http://onemarco.com
 * @version 1.0
 * This code is public domain
 */

/**
 * The Tooltip class is an addon designed for the Google Maps GMarker class. 
 * @constructor
 * @param {GMarker} marker
 * @param {String} content
 * @param {Number} padding
 */
function Tooltip(marker, content, padding){
	this.marker = marker;
	this.content = content;
	this.padding = padding;
	this.div = null;
	this.map = null;
}

Tooltip.prototype = new GOverlay();

Tooltip.prototype.initialize = function(map){
	
	this.div = document.createElement("div");
	var innerContainer = this.div.cloneNode(false);
	this.div.appendChild(innerContainer);
	this.div.style.position = 'absolute';
	this.div.style.visibility = 'hidden';
	
	innerContainer.className = 'tooltip';
	
	var child = typeof this.content == 'string' ? 
		document.createTextNode(this.content) :
		this.content;
	innerContainer.appendChild(child);
	map.getPane(G_MAP_FLOAT_PANE).appendChild(this.div);
	this.map = map;
}

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

Tooltip.prototype.copy = function(){
	var content = typeof this.content == 'string' ? this.content : this.content.cloneNode(true);
	return new Tooltip(this.marker,content,this.padding);
}

Tooltip.prototype.redraw = function(force){
	if (!force) return;
	
	//draw tooltip
	var markerPos = this.map.fromLatLngToDivPixel(this.marker.getPoint());
	var iconAnchor = this.marker.getIcon().iconAnchor;
	var xPos = Math.round(markerPos.x - this.div.clientWidth / 2);
	var yPos = markerPos.y - iconAnchor.y - this.div.clientHeight - this.padding;
	this.div.style.top = yPos + 'px';
	this.div.style.left = xPos + 'px';
	
	
}

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

}

Tooltip.prototype.hide = function(){
	this.div.style.visibility = 'hidden';

}