org.apache.poi.hssf.usermodel.HSSFHeader 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
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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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package org.apache.poi.hssf.usermodel;
import org.apache.poi.hssf.record.HeaderRecord;
import org.apache.poi.hssf.record.aggregates.PageSettingsBlock;
import org.apache.poi.ss.usermodel.Header;
/**
* Class to read and manipulate the header.
*
* The header works by having a left, center, and right side. The total cannot
* be more that 255 bytes long. One uses this class by getting the HSSFHeader
* from HSSFSheet and then getting or setting the left, center, and right side.
* For special things (such as page numbers and date), one can use a the methods
* that return the characters used to represent these. One can also change the
* fonts by using similar methods.
*
*
* @author Shawn Laubach (slaubach at apache dot org)
*/
public final class HSSFHeader extends HeaderFooter implements Header {
private final PageSettingsBlock _psb;
protected HSSFHeader(PageSettingsBlock psb) {
_psb = psb;
}
protected String getRawText() {
HeaderRecord hf = _psb.getHeader();
if (hf == null) {
return "";
}
return hf.getText();
}
@Override
protected void setHeaderFooterText(String text) {
HeaderRecord hfr = _psb.getHeader();
if (hfr == null) {
hfr = new HeaderRecord(text);
_psb.setHeader(hfr);
} else {
hfr.setText(text);
}
}
}