| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.support.v4.math; |
| |
| /** |
| * A utility class providing functions useful for common mathematical operations. |
| */ |
| public class MathUtils { |
| |
| private MathUtils() {} |
| |
| /** |
| * This method takes a numerical value and ensures it fits in a given numerical range. If the |
| * number is smaller than the minimum required by the range, then the minimum of the range will |
| * be returned. If the number is higher than the maximum allowed by the range then the maximum |
| * of the range will be returned. |
| * |
| * @param value the value to be clamped. |
| * @param min minimum resulting value. |
| * @param max maximum resulting value. |
| * |
| * @return the clamped value. |
| */ |
| public static float clamp(float value, float min, float max) { |
| if (value < min) { |
| return min; |
| } else if (value > max) { |
| return max; |
| } |
| return value; |
| } |
| |
| /** |
| * This method takes a numerical value and ensures it fits in a given numerical range. If the |
| * number is smaller than the minimum required by the range, then the minimum of the range will |
| * be returned. If the number is higher than the maximum allowed by the range then the maximum |
| * of the range will be returned. |
| * |
| * @param value the value to be clamped. |
| * @param min minimum resulting value. |
| * @param max maximum resulting value. |
| * |
| * @return the clamped value. |
| */ |
| public static double clamp(double value, double min, double max) { |
| if (value < min) { |
| return min; |
| } else if (value > max) { |
| return max; |
| } |
| return value; |
| } |
| |
| /** |
| * This method takes a numerical value and ensures it fits in a given numerical range. If the |
| * number is smaller than the minimum required by the range, then the minimum of the range will |
| * be returned. If the number is higher than the maximum allowed by the range then the maximum |
| * of the range will be returned. |
| * |
| * @param value the value to be clamped. |
| * @param min minimum resulting value. |
| * @param max maximum resulting value. |
| * |
| * @return the clamped value. |
| */ |
| public static int clamp(int value, int min, int max) { |
| if (value < min) { |
| return min; |
| } else if (value > max) { |
| return max; |
| } |
| return value; |
| } |
| } |