/**
* @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_));
    div.className = 'tooltip';
    div.style.position = 'absolute';
    div.style.visibility = 'hidden';
    map.getPane(G_MAP_FLOAT_PANE).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) {
    if (!force) return;
    var markerPos = this.map_.fromLatLngToDivPixel(this.marker_.getPoint());
    var iconAnchor = this.marker_.getIcon().iconAnchor;
    var xPos = Math.round(markerPos.x - 100);
    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';
}