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.gif;
018
019import org.apache.commons.imaging.common.ImageMetadata;
020
021import java.util.ArrayList;
022import java.util.Collections;
023import java.util.List;
024
025public class GifImageMetadata implements ImageMetadata {
026    private static final String NEWLINE = System.getProperty("line.separator");
027    private final int width;
028    private final int height;
029    private final List<GifImageMetadataItem> items;
030
031    GifImageMetadata(int width, int height, List<GifImageMetadataItem> items) {
032        this.width = width;
033        this.height = height;
034        this.items = Collections.unmodifiableList(new ArrayList<>(items));
035    }
036
037    @Override
038    public String toString(String prefix) {
039        prefix = prefix == null ? "" : prefix;
040        final StringBuilder result = new StringBuilder();
041        result.append(String.format("%sGIF metadata:", prefix));
042        result.append(String.format("%sWidth: %d%s", prefix, width, NEWLINE));
043        result.append(String.format("%sHeight: %d%s", prefix, height, NEWLINE));
044        result.append(NEWLINE);
045        result.append(String.format("%sImages:", prefix));
046        for (GifImageMetadataItem item : items) {
047            result.append(NEWLINE);
048            result.append(item.toString(prefix));
049        }
050        return result.toString();
051    }
052
053    public int getWidth() {
054        return width;
055    }
056
057    public int getHeight() {
058        return height;
059    }
060
061    @Override
062    public List<GifImageMetadataItem> getItems() {
063        return items;
064    }
065}