/*
 * Paper.js
 *
 * This file is part of Paper.js, a JavaScript Vector Graphics Library,
 * based on Scriptographer.org and designed to be largely API compatible.
 * http://paperjs.org/
 * http://scriptographer.org/
 *
 * Distributed under the MIT license. See LICENSE file for details.
 *
 * Copyright (c) 2011, Juerg Lehni & Jonathan Puckey
 * http://lehni.org/ & http://jonathanpuckey.com/
 *
 * All rights reserved.
 */

/**
 * An internal version of Point that notifies its segment of each change
 * Note: This prototype is not exported.
 *
 * @ignore
 */
var SegmentPoint = Point.extend({
	beans: true,

	set: function(x, y) {
		this._x = x;
		this._y = y;
		this._owner._changed(this);
		return this;
	},

	getX: function() {
		return this._x;
	},

	setX: function(x) {
		this._x = x;
		this._owner._changed(this);
	},

	getY: function() {
		return this._y;
	},

	setY: function(y) {
		this._y = y;
		this._owner._changed(this);
	},
	
	setSelected: function(selected) {
		this._owner._setSelected(this, selected);
	},
	
	isSelected: function() {
		return this._owner._isSelected(this);
	},
	
	statics: {
		create: function(segment, x, y, selected) {
			if (y === undefined) {
				// Use the normal point constructor to read in point values
				var pt = x instanceof Point ? x : new Point(x);
				x = pt.x;
				y = pt.y;
				selected = pt.selected;
			}
			var point = new SegmentPoint(SegmentPoint.dont);
			point._x = x;
			point._y = y;
			point._owner = segment;
			if (selected)
				point.setSelected(true);
			return point;
		}
	}
});