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 019public abstract class PngText { 020 public final String keyword; 021 public final String text; 022 023 public PngText(final String keyword, final String text) { 024 this.keyword = keyword; 025 this.text = text; 026 } 027 028 public static class Text extends PngText { 029 public Text(final String keyword, final String text) { 030 super(keyword, text); 031 } 032 } 033 034 public static class Ztxt extends PngText { 035 public Ztxt(final String keyword, final String text) { 036 super(keyword, text); 037 } 038 } 039 040 public static class Itxt extends PngText { 041 042 /* 043 * The language tag defined in [RFC-3066] indicates the human language 044 * used by the translated keyword and the text. Unlike the keyword, the 045 * language tag is case-insensitive. It is an ISO 646.IRV:1991 [ISO 646] 046 * string consisting of hyphen-separated words of 1-8 alphanumeric 047 * characters each (for example cn, en-uk, no-bok, x-klingon, 048 * x-KlInGoN). If the first word is two or three letters long, it is an 049 * ISO language code [ISO-639]. If the language tag is empty, the 050 * language is unspecified. 051 */ 052 public final String languageTag; 053 054 public final String translatedKeyword; 055 056 public Itxt(final String keyword, final String text, final String languageTag, final String translatedKeyword) { 057 super(keyword, text); 058 this.languageTag = languageTag; 059 this.translatedKeyword = translatedKeyword; 060 } 061 } 062 063}