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- /*
- * 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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.afp.ioca;
-
- import java.io.IOException;
- import java.io.OutputStream;
-
- import org.apache.fop.afp.Factory;
- import org.apache.fop.afp.modca.AbstractNamedAFPObject;
-
- /**
- * An Image Segment is represented by a set of self-defining fields, fields
- * that describe their own contents. It starts with a Begin Segment, and
- * ends with an End Segment.
- *
- * Between the Begin Segment and End Segment is the image information to
- * be processed, called the Image Content.
- *
- * Only one Image Content can exist within a single IOCA Image Segment.
- */
- public class ImageSegment extends AbstractNamedAFPObject {
-
- /**
- * The ImageContent for the image segment
- */
- private ImageContent imageContent = null;
-
- private final Factory factory;
-
- /**
- * Constructor for the image segment with the specified name,
- * the name must be a fixed length of eight characters.
- * @param factory the object factory
- *
- * @param name the name of the image.
- */
- public ImageSegment(Factory factory, String name) {
- super(name);
- this.factory = factory;
- }
-
- private ImageContent getImageContent() {
- if (imageContent == null) {
- this.imageContent = factory.createImageContent();
- }
- return imageContent;
- }
-
- /**
- * Sets the image size parameters resolution, hsize and vsize.
- *
- * @param hsize The horizontal size of the image.
- * @param vsize The vertical size of the image.
- * @param hresol The horizontal resolution of the image.
- * @param vresol The vertical resolution of the image.
- */
- public void setImageSize(int hsize, int vsize, int hresol, int vresol) {
- ImageSizeParameter imageSizeParameter
- = factory.createImageSizeParameter(hsize, vsize, hresol, vresol);
- getImageContent().setImageSizeParameter(imageSizeParameter);
- }
-
- /**
- * Sets the image encoding.
- *
- * @param encoding The image encoding.
- */
- public void setEncoding(byte encoding) {
- getImageContent().setImageEncoding(encoding);
- }
-
- /**
- * Sets the image compression.
- *
- * @param compression The image compression.
- */
- public void setCompression(byte compression) {
- getImageContent().setImageCompression(compression);
- }
-
- /**
- * Sets the image IDE size.
- *
- * @param size The IDE size.
- */
- public void setIDESize(byte size) {
- getImageContent().setImageIDESize(size);
- }
-
- /**
- * Sets the image IDE color model.
- *
- * @param colorModel the IDE color model.
- */
- public void setIDEColorModel(byte colorModel) {
- getImageContent().setImageIDEColorModel(colorModel);
- }
-
- /**
- * Set the data image data.
- *
- * @param data the image data
- */
- public void setData(byte[] imageData) {
- getImageContent().setImageData(imageData);
- }
-
- /** {@inheritDoc} */
- public void writeContent(OutputStream os) throws IOException {
- if (imageContent != null) {
- imageContent.writeToStream(os);
- }
- }
-
- private static final int NAME_LENGTH = 4;
-
- /** {@inheritDoc} */
- protected int getNameLength() {
- return NAME_LENGTH;
- }
-
- /** {@inheritDoc} */
- protected void writeStart(OutputStream os) throws IOException {
- byte[] nameBytes = getNameBytes();
- byte[] data = new byte[] {
- 0x70, // ID
- 0x04, // Length
- nameBytes[0], // Name byte 1
- nameBytes[1], // Name byte 2
- nameBytes[2], // Name byte 3
- nameBytes[3], // Name byte 4
- };
- os.write(data);
- }
-
- /** {@inheritDoc} */
- protected void writeEnd(OutputStream os) throws IOException {
- byte[] data = new byte[] {
- 0x71, // ID
- 0x00, // Length
- };
- os.write(data);
- }
- }
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