001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.imaging.palette;
018
019public class SimplePalette implements Palette {
020    private final int[] palette;
021
022    public SimplePalette(final int[] palette) {
023        this.palette = palette;
024    }
025
026    @Override
027    public int getPaletteIndex(final int rgb) {
028        for (int i = 0; i < palette.length; i++) {
029            if (palette[i] == rgb) {
030                return i;
031            }
032        }
033
034        return -1;
035    }
036
037    @Override
038    public int getEntry(final int index) {
039        return palette[index];
040    }
041
042    @Override
043    public int length() {
044        return palette.length;
045    }
046}