/**
* Copyright 2008 Google Inc.
*
* 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 org.waveprotocol.wave.client.common.util;
/**
* General maths utility functions that don't have anywhere else to live.
*
*/
public final class MathUtil {
private MathUtil() {
}
/**
* Rounds a double to an int.
*
* @param x value to round
* @return closest int value to x.
*/
public static int roundToInt(double x) {
return (int) Math.floor(x + 0.5);
}
/**
* Clips a value within a range.
*
* @param lower lower bound
* @param upper upper bound
* @param x value to clip
* @return clipped value of {@code x}
*/
public static int clip(int lower, int upper, int x) {
return Math.min(Math.max(x, lower), upper);
}
/**
* Clips a value within a range.
*
* @param lower lower bound
* @param upper upper bound
* @param x value to clip
* @return clipped value of {@code x}
*/
public static double clip(double lower, double upper, double x) {
return Math.min(Math.max(x, lower), upper);
}
}