| /* |
| * 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.write; |
| |
| import java.io.IOException; |
| |
| import org.apache.commons.sanselan.ImageWriteException; |
| import org.apache.commons.sanselan.common.BinaryOutputStream; |
| import org.apache.commons.sanselan.formats.tiff.constants.TiffConstants; |
| import org.apache.commons.sanselan.formats.tiff.fieldtypes.FieldType; |
| import org.apache.commons.sanselan.formats.tiff.taginfos.TagInfo; |
| |
| public class TiffOutputField implements TiffConstants |
| { |
| public final int tag; |
| public final TagInfo tagInfo; |
| public final FieldType fieldType; |
| public final int count; |
| |
| private byte bytes[]; |
| |
| private final TiffOutputItem.Value separateValueItem; |
| |
| public TiffOutputField(TagInfo tagInfo, FieldType tagtype, int count, |
| byte bytes[]) |
| { |
| this(tagInfo.tag, tagInfo, tagtype, count, bytes); |
| } |
| |
| public TiffOutputField(final int tag, TagInfo tagInfo, FieldType fieldType, |
| int count, byte bytes[]) |
| { |
| this.tag = tag; |
| this.tagInfo = tagInfo; |
| this.fieldType = fieldType; |
| this.count = count; |
| this.bytes = bytes; |
| |
| if (isLocalValue()) |
| separateValueItem = null; |
| else |
| { |
| String name = "Field Seperate value (" + tagInfo.getDescription() |
| + ")"; |
| separateValueItem = new TiffOutputItem.Value(name, bytes); |
| } |
| } |
| |
| private int sortHint = -1; |
| |
| protected static final TiffOutputField createOffsetField(TagInfo tagInfo, |
| int byteOrder) throws ImageWriteException |
| { |
| return new TiffOutputField(tagInfo, FIELD_TYPE_LONG, 1, FIELD_TYPE_LONG |
| .writeData(new int[] { 0, }, byteOrder)); |
| } |
| |
| protected void writeField(BinaryOutputStream bos) throws IOException, |
| ImageWriteException |
| { |
| bos.write2Bytes(tag); |
| bos.write2Bytes(fieldType.type); |
| bos.write4Bytes(count); |
| |
| if (isLocalValue()) |
| { |
| if (separateValueItem != null) |
| throw new ImageWriteException("Unexpected separate value item."); |
| if (bytes.length > 4) |
| throw new ImageWriteException( |
| "Local value has invalid length: " + bytes.length); |
| |
| bos.writeByteArray(bytes); |
| int remainder = TIFF_ENTRY_MAX_VALUE_LENGTH - bytes.length; |
| for (int i = 0; i < remainder; i++) |
| bos.write(0); |
| } else |
| { |
| if (separateValueItem == null) |
| throw new ImageWriteException("Missing separate value item."); |
| |
| bos.write4Bytes(separateValueItem.getOffset()); |
| } |
| } |
| |
| protected TiffOutputItem getSeperateValue() |
| { |
| return separateValueItem; |
| } |
| |
| protected boolean isLocalValue() |
| { |
| return bytes.length <= TIFF_ENTRY_MAX_VALUE_LENGTH; |
| } |
| |
| protected void setData(byte bytes[]) throws ImageWriteException |
| { |
| // if(tagInfo.isUnknown()) |
| // Debug.debug("unknown tag(0x" + Integer.toHexString(tag) |
| // + ") setData", bytes); |
| |
| if (this.bytes.length != bytes.length) |
| throw new ImageWriteException("Cannot change size of value."); |
| |
| // boolean wasLocalValue = isLocalValue(); |
| this.bytes = bytes; |
| if (separateValueItem != null) |
| separateValueItem.updateValue(bytes); |
| // if (isLocalValue() != wasLocalValue) |
| // throw new Error("Bug. Locality disrupted! " |
| // + tagInfo.getDescription()); |
| } |
| |
| private static final String newline = System.getProperty("line.separator"); |
| |
| @Override |
| public String toString() |
| { |
| return toString(null); |
| } |
| |
| public String toString(String prefix) |
| { |
| if (prefix == null) |
| prefix = ""; |
| StringBuffer result = new StringBuffer(); |
| |
| result.append(prefix); |
| result.append(tagInfo); |
| result.append(newline); |
| |
| result.append(prefix); |
| result.append("count: " + count); |
| result.append(newline); |
| |
| result.append(prefix); |
| result.append(fieldType); |
| result.append(newline); |
| |
| return result.toString(); |
| } |
| |
| public int getSortHint() |
| { |
| return sortHint; |
| } |
| |
| public void setSortHint(int sortHint) |
| { |
| this.sortHint = sortHint; |
| } |
| } |