The Tor Browser: mobile/android/base/gfx/PointUtils.java@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 package org.mozilla.gecko.gfx;

     8 import org.json.JSONException;

     9 import org.json.JSONObject;

    11 import android.graphics.Point;

    12 import android.graphics.PointF;

    14 public final class PointUtils {

    15     public static PointF add(PointF one, PointF two) {

    16         return new PointF(one.x + two.x, one.y + two.y);

    17     }

    19     public static PointF subtract(PointF one, PointF two) {

    20         return new PointF(one.x - two.x, one.y - two.y);

    21     }

    23     public static PointF scale(PointF point, float factor) {

    24         return new PointF(point.x * factor, point.y * factor);

    25     }

    27     public static Point round(PointF point) {

    28         return new Point(Math.round(point.x), Math.round(point.y));

    29     }

    31    /* Computes the magnitude of the given vector. */

    32    public static float distance(PointF point) {

    33         return (float)Math.sqrt(point.x * point.x + point.y * point.y);

    34    }

    36     /** Computes the scalar distance between two points. */

    37     public static float distance(PointF one, PointF two) {

    38         return PointF.length(one.x - two.x, one.y - two.y);

    39     }

    41     public static JSONObject toJSON(PointF point) throws JSONException {

    42         // Ensure we put ints, not longs, because Gecko message handlers call getInt().

    43         int x = Math.round(point.x);

    44         int y = Math.round(point.y);

    45         JSONObject json = new JSONObject();

    46         json.put("x", x);

    47         json.put("y", y);

    48         return json;

    49     }

    50 }

The Tor Browser / file revision