//*** GeoHex by sa2da is licensed under a Creative Commons BY-SA 2.1 Japan License. ***//

(function (win) {	// グローバルを汚さないように関数化

// namspace GeoHex;	// require hex_v2_core.js
if (!win.GeoHex)	return;

// require google.maps.version >= 3
if (!win.google || !google.maps || parseFloat(google.maps.version) < 3)	return;

var Zone = GeoHex.getZoneByCode('aaa').constructor;

var World = (function () {
	var count = 0;
	var fn = function (map) {
		this.map = map;
		this.stamp = {};	// Zone(HexCode)に対する描画済みHexPolygonのキャッシュ
		this.onDrawHex = [];
	};
	var _commonOnDrawHex = [];
	fn.prototype.fireOnDrawHex = function (zone, polygon, properties) {
		for (var idx = 0, l = _commonOnDrawHex.length; idx < l; idx++) {
			_commonOnDrawHex[idx].call(null, this.map, zone, polygon, properties);
		}
		for (var idx = 0, l = this.onDrawHex.length; idx < l; idx++) {
			this.onDrawHex[idx].call(null, this.map, zone, polygon, properties);
		}
	}
	var _stack = [];
	return {
		get: function (map) {
			var idx = map.ghxid;
			if (!idx || !_stack[idx]) {
				idx = map.ghxid = ++count;
				_stack[count] = new fn(map);
			}
			return _stack[idx];
		},
		reg: function (map, onDrawHex) {
			if (arguments.length < 2) {
				onDrawHex = map;
				_commonOnDrawHex.push(onDrawHex);
			} else {
				World.get(map).onDrawHex.push(onDrawHex);
			}
		}
	};
})();

//var h_stamp = {};	// → World.get(map)::stamp に置換

var def_prop = {
	linecolor: "#FF0000",
	fillcolor: "#FF8a00"
};	// ＊＊＊ popinfoは非標準プロパティ ＊＊＊

var $merge = function (org, src) {
	org || (org = {});
	src || (src = {});
	var dest = {};
	for (var idx in org) if (org.hasOwnProperty(idx)) {
		dest[idx] = org[idx];
	}
	for (var idx in src) if (src.hasOwnProperty(idx)) {
		dest[idx] = src[idx];
	}
	return dest;
};

Zone.prototype.drawHex = function (map, properties) {
	var prop = $merge(def_prop, properties);
	var linecolor = prop.linecolor;
	var fillcolor = prop.fillcolor;

	var world = World.get(map);
	var hexPolygon = world.stamp[this.code];
	//console.log(hexPolygon);
	if (!hexPolygon) {

		var coords = this.getHexCoords();
		var h_top = coords[1].lat;	// top-left
		var h_btm = coords[4].lat;	// bottom-right
		if ((h_btm > 85.051128514) || (h_top < -85.051128514))	return;

		var level = this.getLevel();
		var len = 6;	// == coords.length
		var gCoords = new Array(len);
		for (var idx = 0; idx < len; idx++) {
			gCoords[idx] = new google.maps.LatLng(coords[idx].lat, coords[idx].lon);
		}
		hexPolygon = new google.maps.Polygon({
			paths: gCoords,
			strokeColor: linecolor,
			strokeOpacity: 1,
			strokeWeight: 1,
			fillColor: fillcolor,
			fillOpacity: 0.1
		});
		hexPolygon.setMap(map);

		world.stamp[this.code] = hexPolygon;

	} else {
		hexPolygon.setOptions({
			strokeColor: linecolor,
			fillColor: fillcolor
		});
		hexPolygon.setMap(map);
	}

	// PostProcess
	world.fireOnDrawHex(this, hexPolygon, prop);
};
Zone.prototype.eraseHex = function (map) {
	var hexPolygon = World.get(map).stamp[this.code];
	if (hexPolygon) hexPolygon.setMap(null);
}

// EXPORT
GeoHex.registOnDrawHex = World.reg;

})(this);