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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.render.afp.modca;
-
- import java.io.IOException;
- import java.io.OutputStream;
-
- import org.apache.fop.render.afp.tools.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 byte[] x;
-
- /**
- * The y position where we need to put this object on the page
- */
- private byte[] 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 = BinaryUtils.convert(x, 3);
- this.y = BinaryUtils.convert(y, 3);
-
- }
-
- /**
- * Accessor method to write the AFP datastream for the Include Page Segment
- * @param os The stream to write to
- * @throws java.io.IOException thrown if an I/O exception of some sort has occurred
- */
- public void writeDataStream(OutputStream os)
- throws IOException {
-
- byte[] data = new byte[23]; //(9 +14)
-
- data[0] = 0x5A;
-
- // Set the total record length
- byte[] rl1 = BinaryUtils.convert(22, 2); //Ignore first byte
- data[1] = rl1[0];
- data[2] = rl1[1];
-
- // Structured field ID for a IPS
- data[3] = (byte) 0xD3;
- data[4] = (byte) 0xAF;
- data[5] = (byte) 0x5F;
-
- data[6] = 0x00; // Reserved
- data[7] = 0x00; // Reserved
- data[8] = 0x00; // Reserved
-
- for (int i = 0; i < nameBytes.length; i++) {
- data[9 + i] = nameBytes[i];
- }
-
- data[17] = x[0]; // x coordinate
- data[18] = x[1];
- data[19] = x[2];
-
- data[20] = y[0]; // y coordinate
- data[21] = y[1];
- data[22] = y[2];
-
- os.write(data);
- }
- }
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