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.tiff.fieldtypes; 018 019import java.nio.ByteOrder; 020 021import org.apache.commons.imaging.ImageWriteException; 022import org.apache.commons.imaging.common.ByteConversions; 023import org.apache.commons.imaging.formats.tiff.TiffField; 024 025public class FieldTypeDouble extends FieldType { 026 public FieldTypeDouble(final int type, final String name) { 027 super(type, name, 8); 028 } 029 030 @Override 031 public Object getValue(final TiffField entry) { 032 final byte[] bytes = entry.getByteArrayValue(); 033 if (entry.getCount() == 1) { 034 return ByteConversions.toDouble(bytes, 035 entry.getByteOrder()); 036 } 037 return ByteConversions.toDoubles(bytes, entry.getByteOrder()); 038 } 039 040 @Override 041 public byte[] writeData(final Object o, final ByteOrder byteOrder) throws ImageWriteException { 042 if (o instanceof Double) { 043 return ByteConversions.toBytes(((Double) o).doubleValue(), 044 byteOrder); 045 } 046 if (o instanceof double[]) { 047 final double[] numbers = (double[]) o; 048 return ByteConversions.toBytes(numbers, byteOrder); 049 } 050 if (!(o instanceof Double[])) { 051 throw new ImageWriteException("Invalid data", o); 052 } 053 final Double[] numbers = (Double[]) o; 054 final double[] values = new double[numbers.length]; 055 for (int i = 0; i < values.length; i++) { 056 values[i] = numbers[i].doubleValue(); 057 } 058 return ByteConversions.toBytes(values, byteOrder); 059 } 060 061}