The Tor Browser / file comparison
comparison: mobile/android/base/gfx/PointUtils.java
mobile/android/base/gfx/PointUtils.java
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
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| -1:000000000000 | 0:659f85fcbbc2 |
|---|---|
| 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/. */ | |
| 5 | |
| 6 package org.mozilla.gecko.gfx; | |
| 7 | |
| 8 import org.json.JSONException; | |
| 9 import org.json.JSONObject; | |
| 10 | |
| 11 import android.graphics.Point; | |
| 12 import android.graphics.PointF; | |
| 13 | |
| 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 } | |
| 18 | |
| 19 public static PointF subtract(PointF one, PointF two) { | |
| 20 return new PointF(one.x - two.x, one.y - two.y); | |
| 21 } | |
| 22 | |
| 23 public static PointF scale(PointF point, float factor) { | |
| 24 return new PointF(point.x * factor, point.y * factor); | |
| 25 } | |
| 26 | |
| 27 public static Point round(PointF point) { | |
| 28 return new Point(Math.round(point.x), Math.round(point.y)); | |
| 29 } | |
| 30 | |
| 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 } | |
| 35 | |
| 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 } | |
| 40 | |
| 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 } | |
| 51 |
