| /** |
| * 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. |
| */ |
| |
| package org.apache.pdfbox.jbig2; |
| |
| import javax.imageio.ImageTypeSpecifier; |
| import javax.imageio.metadata.IIOMetadataFormat; |
| import javax.imageio.metadata.IIOMetadataFormatImpl; |
| |
| /** |
| * @see IIOMetadataFormat |
| * @see IIOMetadataFormatImpl |
| */ |
| public class JBIG2ImageMetadataFormat extends IIOMetadataFormatImpl |
| { |
| |
| private static IIOMetadataFormat instance = null; |
| |
| private JBIG2ImageMetadataFormat() |
| { |
| super(JBIG2ImageMetadata.IMAGE_METADATA_FORMAT_NAME, CHILD_POLICY_SOME); |
| |
| // root -> ImageDescriptor |
| addElement("ImageDescriptor", JBIG2ImageMetadata.IMAGE_METADATA_FORMAT_NAME, |
| CHILD_POLICY_EMPTY); |
| addAttribute("ImageDescriptor", "imageWidth", DATATYPE_INTEGER, true, null, "1", "65535", |
| true, true); |
| addAttribute("ImageDescriptor", "imageHeight", DATATYPE_INTEGER, true, null, "1", "65535", |
| true, true); |
| addAttribute("ImageDescriptor", "Xdensity", DATATYPE_FLOAT, true, null, "1", "65535", true, |
| true); |
| addAttribute("ImageDescriptor", "Ydensity", DATATYPE_FLOAT, true, null, "1", "65535", true, |
| true); |
| } |
| |
| public boolean canNodeAppear(String elementName, ImageTypeSpecifier imageType) |
| { |
| return true; |
| } |
| |
| public static synchronized IIOMetadataFormat getInstance() |
| { |
| if (instance == null) |
| { |
| instance = new JBIG2ImageMetadataFormat(); |
| } |
| return instance; |
| } |
| } |