118 lines
3.5 KiB
Java
118 lines
3.5 KiB
Java
/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.hslf.record;
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import java.io.IOException;
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import java.io.OutputStream;
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import org.apache.poi.util.LittleEndian;
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/**
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* An atom record that specifies an ActiveX control.
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*
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* @author Yegor Kozlov
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*/
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public final class ExControlAtom extends RecordAtom {
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/**
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* Record header.
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*/
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private byte[] _header;
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/**
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* slideId.
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*/
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private int _id;
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/**
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* Constructs a brand new embedded object atom record.
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*/
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protected ExControlAtom() {
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_header = new byte[8];
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LittleEndian.putShort(_header, 2, (short) getRecordType());
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LittleEndian.putInt(_header, 4, 4);
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}
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/**
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* Constructs the ExControlAtom record from its source data.
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*
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* @param source the source data as a byte array.
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* @param start the start offset into the byte array.
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* @param len the length of the slice in the byte array.
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*/
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protected ExControlAtom(byte[] source, int start, int len) {
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// Get the header.
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_header = new byte[8];
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System.arraycopy(source, start, _header, 0, 8);
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_id = LittleEndian.getInt(source, start + 8);
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}
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/**
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* An integer that specifies which presentation slide is associated with the ActiveX control.
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* <p>
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* It MUST be 0x00000000 or equal to the value of the slideId field of a SlidePersistAtom record.
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* The value 0x00000000 specifies a null reference.
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* </p>
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*
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* @return an integer that specifies which presentation slide is associated with the ActiveX control
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*/
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public int getSlideId() {
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return _id;
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}
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/**
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* Sets which presentation slide is associated with the ActiveX control.
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*
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* @param id an integer that specifies which presentation slide is associated with the ActiveX control
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* <p>
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* It MUST be 0x00000000 or equal to the value of the slideId field of a SlidePersistAtom record.
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* The value 0x00000000 specifies a null reference.
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* </p>
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*/
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public void setSlideId(int id) {
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_id = id;
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}
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/**
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* Gets the record type.
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* @return the record type.
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*/
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public long getRecordType() {
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return RecordTypes.ExControlAtom.typeID;
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}
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/**
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* Write the contents of the record back, so it can be written
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* to disk
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*
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* @param out the output stream to write to.
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* @throws java.io.IOException if an error occurs.
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*/
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public void writeOut(OutputStream out) throws IOException {
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out.write(_header);
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byte[] data = new byte[4];
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LittleEndian.putInt(data, 0, _id);
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out.write(data);
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}
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}
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