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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.modca;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.fop.afp.util.BinaryUtils;
/**
* The Include Page Segment structured field references a page segment resource
* object that is to be presented on the page or overlay presentation space. The IPS
* specifies a reference point on the including page or overlay coordinate system that
* may be used to position objects contained in the page segment. A page segment
* can be referenced at any time during page or overlay state, but not during an
* object state. The page segment inherits the active environment group definition of
* the including page or overlay.
*
* Note : No use for Triplets.
*
* A 'real' example for where this will be used is for
* the dynamic placing of overlay objects, such as signatures
* that may have to be placed at different positions on a document.
*
*/
public class IncludePageSegment extends AbstractNamedAFPObject {
/**
* The x position where we need to put this object on the page
*/
private int x;
/**
* The y position where we need to put this object on the page
*/
private int y;
/**
* Constructor for the Include Page Segment
*
* @param name Name of the page segment
* @param x The x position
* @param y The y position
*/
public IncludePageSegment(String name, int x, int y) {
super(name);
this.x = x;
this.y = y;
}
/** {@inheritDoc} */
public void writeToStream(OutputStream os) throws IOException {
byte[] data = new byte[23]; //(9 +14)
copySF(data, Type.INCLUDE, Category.PAGE_SEGMENT);
// Set the total record length
byte[] len = BinaryUtils.convert(22, 2); //Ignore first byte
data[1] = len[0];
data[2] = len[1];
byte[] xPos = BinaryUtils.convert(x, 3);
data[17] = xPos[0]; // x coordinate
data[18] = xPos[1];
data[19] = xPos[2];
byte[] yPos = BinaryUtils.convert(y, 3);
data[20] = yPos[0]; // y coordinate
data[21] = yPos[1];
data[22] = yPos[2];
os.write(data);
}
}
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