org.apache.poi.hssf.record.FeatHdrRecord Maven / Gradle / Ivy

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   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

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   distributed under the License is distributed on an "AS IS" BASIS,
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   See the License for the specific language governing permissions and
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package org.apache.poi.hssf.record;

import java.util.Map;
import java.util.function.Supplier;

import org.apache.poi.hssf.record.common.FtrHeader;
import org.apache.poi.util.GenericRecordUtil;
import org.apache.poi.util.LittleEndianOutput;

/**
 * Title: FeatHdr (Feature Header) Record
 * 
 * This record specifies common information for Shared Features, and
 *  specifies the beginning of a collection of records to define them.
 * The collection of data (Globals Substream ABNF, macro sheet substream
 *  ABNF or worksheet substream ABNF) specifies Shared Feature data.
 */
public final class FeatHdrRecord extends StandardRecord {
	/**
	 * Specifies the enhanced protection type. Used to protect a
	 * shared workbook by restricting access to some areas of it
	 */
	public static final int SHAREDFEATURES_ISFPROTECTION = 0x02;
	/**
	 * Specifies that formula errors should be ignored
	 */
	public static final int SHAREDFEATURES_ISFFEC2       = 0x03;
	/**
	 * Specifies the smart tag type. Recognises certain
	 * types of entries (proper names, dates/times etc) and
	 * flags them for action
	 */
	public static final int SHAREDFEATURES_ISFFACTOID    = 0x04;
	/**
	 * Specifies the shared list type. Used for a table
	 * within a sheet
	 */
	public static final int SHAREDFEATURES_ISFLIST       = 0x05;


	public static final short sid = 0x0867;

	private final FtrHeader futureHeader;
	// See SHAREDFEATURES
	private int isf_sharedFeatureType;
	// Should always be one
	private byte reserved;
	/**
	 * 0x00000000 = rgbHdrData not present
	 * 0xffffffff = rgbHdrData present
	 */
	private long cbHdrData;
	/** We need a BOFRecord to make sense of this... */
	private byte[] rgbHdrData;

	public FeatHdrRecord() {
		futureHeader = new FtrHeader();
		futureHeader.setRecordType(sid);
	}

	public FeatHdrRecord(FeatHdrRecord other) {
		super(other);
		futureHeader = other.futureHeader.copy();
		isf_sharedFeatureType = other.isf_sharedFeatureType;
		reserved = other.reserved;
		cbHdrData = other.cbHdrData;
		rgbHdrData = (other.rgbHdrData == null) ? null : other.rgbHdrData.clone();
	}

	public FeatHdrRecord(RecordInputStream in) {
		futureHeader = new FtrHeader(in);

		isf_sharedFeatureType = in.readShort();
		reserved = in.readByte();
		cbHdrData = in.readInt();
		// Don't process this just yet, need the BOFRecord
		rgbHdrData = in.readRemainder();
	}

	public short getSid() {
		return sid;
	}

	public void serialize(LittleEndianOutput out) {
		futureHeader.serialize(out);

		out.writeShort(isf_sharedFeatureType);
		out.writeByte(reserved);
		out.writeInt((int)cbHdrData);
		out.write(rgbHdrData);
	}

	protected int getDataSize() {
		return 12 + 2+1+4+rgbHdrData.length;
	}

	@Override
    public FeatHdrRecord copy() {
	    //HACK: do a "cheat" clone, see Record.java for more information
        return new FeatHdrRecord(this);
    }

	@Override
	public HSSFRecordTypes getGenericRecordType() {
		return HSSFRecordTypes.FEAT_HDR;
	}

	@Override
	public Map> getGenericProperties() {
		return GenericRecordUtil.getGenericProperties(
			"futureHeader", () -> futureHeader,
			"isf_sharedFeatureType", () -> isf_sharedFeatureType,
			"reserved", () -> reserved,
			"cbHdrData", () -> cbHdrData,
			"rgbHdrData", () -> rgbHdrData
		);
	}
}