99 lines
3.1 KiB
Java
99 lines
3.1 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.hssf.usermodel;
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import org.apache.poi.hssf.record.HeaderRecord;
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import org.apache.poi.ss.usermodel.Header;
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/**
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* Class to read and manipulate the header.
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* <P>
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* The header works by having a left, center, and right side. The total cannot
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* be more that 255 bytes long. One uses this class by getting the HSSFHeader
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* from HSSFSheet and then getting or setting the left, center, and right side.
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* For special things (such as page numbers and date), one can use a the methods
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* that return the characters used to represent these. One can also change the
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* fonts by using similar methods.
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* <P>
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*
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* @author Shawn Laubach (slaubach at apache dot org)
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*/
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public class HSSFHeader extends HeaderFooter implements Header {
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private HeaderRecord headerRecord;
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/**
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* Constructor. Creates a new header interface from a header record
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*
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* @param headerRecord Header record to create the header with
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*/
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protected HSSFHeader( HeaderRecord headerRecord ) {
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super(headerRecord.getHeader());
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this.headerRecord = headerRecord;
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}
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/**
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* Sets the left string.
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*
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* @param newLeft The string to set as the left side.
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*/
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public void setLeft( String newLeft )
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{
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left = newLeft;
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createHeaderString();
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}
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/**
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* Sets the center string.
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*
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* @param newCenter The string to set as the center.
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*/
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public void setCenter( String newCenter )
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{
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center = newCenter;
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createHeaderString();
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}
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/**
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* Sets the right string.
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*
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* @param newRight The string to set as the right side.
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*/
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public void setRight( String newRight )
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{
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right = newRight;
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createHeaderString();
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}
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protected String getRawHeader() {
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return headerRecord.getHeader();
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}
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/**
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* Creates the complete header string based on the left, center, and middle
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* strings.
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*/
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private void createHeaderString()
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{
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headerRecord.setHeader( "&C" + ( center == null ? "" : center ) +
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"&L" + ( left == null ? "" : left ) +
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"&R" + ( right == null ? "" : right ) );
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}
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}
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