Here you can find the source of lightenColor(Color col, float factor)
| Parameter | Description |
|---|---|
| col | the color to lighten up |
| factor | factor by which to lighten up (negative values darken the color) |
public static Color lightenColor(Color col, float factor)
//package com.java2s; /*/* w w w .j av a2 s . co m*/ * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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. */ import java.awt.Color; public class Main { /** * Lightens up a color for groove, ridge, inset and outset border effects. * @param col the color to lighten up * @param factor factor by which to lighten up (negative values darken the color) * @return the modified color */ public static Color lightenColor(Color col, float factor) { // TODO: This function converts the color into the sRGB namespace. // This should be avoided if possible. float[] cols = new float[4]; cols = col.getRGBComponents(cols); if (factor > 0) { cols[0] += (1.0 - cols[0]) * factor; cols[1] += (1.0 - cols[1]) * factor; cols[2] += (1.0 - cols[2]) * factor; } else { cols[0] -= cols[0] * -factor; cols[1] -= cols[1] * -factor; cols[2] -= cols[2] * -factor; } return new Color(cols[0], cols[1], cols[2], cols[3]); } }