Hacked By AnonymousFox

/**********************************************************

 Very minorly modified from the example by Tim Taylor

 http://tool-man.org/examples/sorting.html

 

 Added Coordinate.prototype.inside( northwest, southeast );

 

 **********************************************************/



var Coordinates = {

	ORIGIN : new Coordinate(0, 0),



	northwestPosition : function(element) {

		var x = parseInt(element.style.left);

		var y = parseInt(element.style.top);



		return new Coordinate(isNaN(x) ? 0 : x, isNaN(y) ? 0 : y);

	},



	southeastPosition : function(element) {

		return Coordinates.northwestPosition(element).plus(

				new Coordinate(element.offsetWidth, element.offsetHeight));

	},



	northwestOffset : function(element, isRecursive) {

		var offset = new Coordinate(element.offsetLeft, element.offsetTop);



		if (!isRecursive) return offset;



		var parent = element.offsetParent;

		while (parent) {

			offset = offset.plus(

					new Coordinate(parent.offsetLeft, parent.offsetTop));

			parent = parent.offsetParent;

		}

		return offset;

	},



	southeastOffset : function(element, isRecursive) {

		return Coordinates.northwestOffset(element, isRecursive).plus(

				new Coordinate(element.offsetWidth, element.offsetHeight));

	},



	fixEvent : function(event) {

		event.windowCoordinate = new Coordinate(event.clientX, event.clientY);

	}

};



function Coordinate(x, y) {

	this.x = x;

	this.y = y;

}



Coordinate.prototype.toString = function() {

	return "(" + this.x + "," + this.y + ")";

}



Coordinate.prototype.plus = function(that) {

	return new Coordinate(this.x + that.x, this.y + that.y);

}



Coordinate.prototype.minus = function(that) {

	return new Coordinate(this.x - that.x, this.y - that.y);

}



Coordinate.prototype.distance = function(that) {

	var deltaX = this.x - that.x;

	var deltaY = this.y - that.y;



	return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));

}



Coordinate.prototype.max = function(that) {

	var x = Math.max(this.x, that.x);

	var y = Math.max(this.y, that.y);

	return new Coordinate(x, y);

}



Coordinate.prototype.constrain = function(min, max) {

	if (min.x > max.x || min.y > max.y) return this;



	var x = this.x;

	var y = this.y;



	if (min.x != null) x = Math.max(x, min.x);

	if (max.x != null) x = Math.min(x, max.x);

	if (min.y != null) y = Math.max(y, min.y);

	if (max.y != null) y = Math.min(y, max.y);



	return new Coordinate(x, y);

}



Coordinate.prototype.reposition = function(element) {

	element.style["top"] = this.y + "px";

	element.style["left"] = this.x + "px";

}



Coordinate.prototype.equals = function(that) {

	if (this == that) return true;

	if (!that || that == null) return false;



	return this.x == that.x && this.y == that.y;

}



// returns true of this point is inside specified box

Coordinate.prototype.inside = function(northwest, southeast) {

	if ((this.x >= northwest.x) && (this.x <= southeast.x) &&

		(this.y >= northwest.y) && (this.y <= southeast.y)) {

		

		return true;

	}

	return false;

}