The Tor Browser / file comparison
comparison: mobile/android/base/util/FloatUtils.java
mobile/android/base/util/FloatUtils.java
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
equal
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| -1:000000000000 | 0:5987bf4b6c6b |
|---|---|
| 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.util; | |
| 7 | |
| 8 import android.graphics.PointF; | |
| 9 | |
| 10 import java.lang.IllegalArgumentException; | |
| 11 | |
| 12 public final class FloatUtils { | |
| 13 private FloatUtils() {} | |
| 14 | |
| 15 public static boolean fuzzyEquals(float a, float b) { | |
| 16 return (Math.abs(a - b) < 1e-6); | |
| 17 } | |
| 18 | |
| 19 public static boolean fuzzyEquals(PointF a, PointF b) { | |
| 20 return fuzzyEquals(a.x, b.x) && fuzzyEquals(a.y, b.y); | |
| 21 } | |
| 22 | |
| 23 /* | |
| 24 * Returns the value that represents a linear transition between `from` and `to` at time `t`, | |
| 25 * which is on the scale [0, 1). Thus with t = 0.0f, this returns `from`; with t = 1.0f, this | |
| 26 * returns `to`; with t = 0.5f, this returns the value halfway from `from` to `to`. | |
| 27 */ | |
| 28 public static float interpolate(float from, float to, float t) { | |
| 29 return from + (to - from) * t; | |
| 30 } | |
| 31 | |
| 32 /** | |
| 33 * Returns 'value', clamped so that it isn't any lower than 'low', and it | |
| 34 * isn't any higher than 'high'. | |
| 35 */ | |
| 36 public static float clamp(float value, float low, float high) { | |
| 37 if (high < low) { | |
| 38 throw new IllegalArgumentException( | |
| 39 "clamp called with invalid parameters (" + high + " < " + low + ")" ); | |
| 40 } | |
| 41 return Math.max(low, Math.min(high, value)); | |
| 42 } | |
| 43 } |
