109 lines
3.3 KiB
Java
109 lines
3.3 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 org.apache.poi.util.POILogger;
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import java.io.*;
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import java.util.*;
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/**
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* <code>FontCollection</code> ia a container that holds information
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* about all the fonts in the presentation.
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*
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* @author Yegor Kozlov
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*/
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public class FontCollection extends RecordContainer {
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private List fonts;
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private byte[] _header;
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protected FontCollection(byte[] source, int start, int len) {
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// Grab 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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_children = Record.findChildRecords(source,start+8,len-8);
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// Save font names into <code>List</code>
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fonts = new ArrayList();
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for (int i = 0; i < _children.length; i++){
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if(_children[i] instanceof FontEntityAtom) {
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FontEntityAtom atom = (FontEntityAtom)_children[i];
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fonts.add(atom.getFontName());
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} else {
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logger.log(POILogger.WARN, "Warning: FontCollection child wasn't a FontEntityAtom, was " + _children[i]);
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}
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}
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}
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/**
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* Return the type, which is 2005
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*/
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public long getRecordType() {
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return RecordTypes.FontCollection.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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public void writeOut(OutputStream out) throws IOException {
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writeOut(_header[0],_header[1],getRecordType(),_children,out);
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}
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/**
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* Add font with the specified name to the font collection.
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* If the font is already present return its index.
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* @param name of the font
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* @return zero based index of the font in the collection
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*/
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public int addFont(String name) {
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for (int i = 0; i < fonts.size(); i++) {
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if(fonts.get(i).equals(name)){
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//if the font is already present return its index
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return i;
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}
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}
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FontEntityAtom fnt = new FontEntityAtom();
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fnt.setFontIndex(fonts.size() << 4);
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fnt.setFontName(name);
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fonts.add(name);
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// Append new child to the end
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appendChildRecord(fnt);
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return fonts.size()-1; //the added font is the last in the list
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}
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/**
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* Get the name of the font at the given ID, or null if there is
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* no font at that ID.
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* @param id
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*/
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public String getFontWithId(int id) {
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if(id >= fonts.size()) {
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// No font with that id
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return null;
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}
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return (String)fonts.get(id);
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}
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}
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