| /* |
| * 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.commons.sanselan.formats.tiff.fieldtypes; |
| |
| import org.apache.commons.sanselan.ImageWriteException; |
| import org.apache.commons.sanselan.common.RationalNumber; |
| import org.apache.commons.sanselan.common.RationalNumberUtilities; |
| import org.apache.commons.sanselan.formats.tiff.TiffField; |
| import org.apache.commons.sanselan.util.Debug; |
| |
| public class FieldTypeRational extends FieldType |
| { |
| public FieldTypeRational(int type, String name) |
| { |
| super(type, 8, name); |
| } |
| |
| public Object getSimpleValue(TiffField entry) |
| { |
| if (entry.length == 1) |
| return convertByteArrayToRational(name + " (" + entry.tagInfo.name |
| + ")", entry.oversizeValue, entry.byteOrder); |
| |
| return convertByteArrayToRationalArray(name + " (" + entry.tagInfo.name |
| + ")", getRawBytes(entry), 0, entry.length, entry.byteOrder); |
| } |
| |
| public byte[] writeData(Object o, int byteOrder) throws ImageWriteException |
| { |
| if (o instanceof RationalNumber) |
| return convertRationalToByteArray((RationalNumber) o, byteOrder); |
| else if (o instanceof RationalNumber[]) |
| { |
| return convertRationalArrayToByteArray((RationalNumber[]) o, |
| byteOrder); |
| } |
| else if (o instanceof Number) |
| { |
| Number number = (Number) o; |
| RationalNumber rationalNumber = RationalNumberUtilities |
| .getRationalNumber(number.doubleValue()); |
| return convertRationalToByteArray(rationalNumber, byteOrder); |
| } |
| else if (o instanceof Number[]) |
| { |
| Number numbers[] = (Number[]) o; |
| RationalNumber rationalNumbers[] = new RationalNumber[numbers.length]; |
| for (int i = 0; i < numbers.length; i++) |
| { |
| Number number = numbers[i]; |
| rationalNumbers[i] = RationalNumberUtilities |
| .getRationalNumber(number.doubleValue()); |
| } |
| return convertRationalArrayToByteArray(rationalNumbers, byteOrder); |
| } |
| else if (o instanceof double[]) |
| { |
| double numbers[] = (double[]) o; |
| RationalNumber rationalNumbers[] = new RationalNumber[numbers.length]; |
| for (int i = 0; i < numbers.length; i++) |
| { |
| double number = numbers[i]; |
| rationalNumbers[i] = RationalNumberUtilities |
| .getRationalNumber(number); |
| } |
| return convertRationalArrayToByteArray(rationalNumbers, byteOrder); |
| } |
| else |
| throw new ImageWriteException("Invalid data: " + o + " (" |
| + Debug.getType(o) + ")"); |
| } |
| |
| public byte[] writeData(int numerator, int denominator, int byteOrder) |
| throws ImageWriteException |
| { |
| return writeData(new int[]{ |
| numerator |
| }, new int[]{ |
| denominator |
| }, byteOrder); |
| } |
| |
| public byte[] writeData(int numerators[], int denominators[], int byteOrder) |
| throws ImageWriteException |
| { |
| return convertIntArrayToRationalArray(numerators, denominators, |
| byteOrder); |
| } |
| } |