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.formats.png; 018 019/** 020 * Interlace methods. 021 * 022 * @see <a href="https://www.w3.org/TR/png/#8Interlace">Portable Network Graphics Specification - Interlacing and pass extraction</a> 023 */ 024public enum InterlaceMethod { 025 026 NONE(false), ADAM7(true); 027 028 private final boolean progressive; 029 030 InterlaceMethod(final boolean progressive) { 031 this.progressive = progressive; 032 } 033 034 public boolean isProgressive() { 035 return progressive; 036 } 037}