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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
cr.define('print_preview', function() {
'use strict';
/**
* Immutable two dimensional point in space. The units of the dimensions are
* undefined.
* @param {number} x X-dimension of the point.
* @param {number} y Y-dimension of the point.
* @constructor
*/
function Coordinate2d(x, y) {
/**
* X-dimension of the point.
* @type {number}
* @private
*/
this.x_ = x;
/**
* Y-dimension of the point.
* @type {number}
* @private
*/
this.y_ = y;
};
Coordinate2d.prototype = {
/** @return {number} X-dimension of the point. */
get x() {
return this.x_;
},
/** @return {number} Y-dimension of the point. */
get y() {
return this.y_;
},
/**
* @param {number} x Amount to translate in the X dimension.
* @param {number} y Amount to translate in the Y dimension.
* @return {!print_preview.Coordinate2d} A new two-dimensional point
* translated along the X and Y dimensions.
*/
translate: function(x, y) {
return new Coordinate2d(this.x_ + x, this.y_ + y);
},
/**
* @param {number} factor Amount to scale the X and Y dimensions.
* @return {!print_preview.Coordinate2d} A new two-dimensional point scaled
* by the given factor.
*/
scale: function(factor) {
return new Coordinate2d(this.x_ * factor, this.y_ * factor);
},
/**
* @param {print_preview.Coordinate2d} other The point to compare against.
* @return {boolean} Whether another point is equal to this one.
*/
equals: function(other) {
return other != null &&
this.x_ == other.x_ &&
this.y_ == other.y_;
}
};
// Export
return {
Coordinate2d: Coordinate2d
};
});
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