| /* ==================================================================== |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| 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 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| ==================================================================== */ |
| |
| package org.apache.poi.hslf.record; |
| |
| import org.apache.poi.hslf.model.PPFont; |
| import org.apache.poi.util.POILogger; |
| |
| import java.io.*; |
| import java.util.*; |
| |
| /** |
| * <code>FontCollection</code> ia a container that holds information |
| * about all the fonts in the presentation. |
| * |
| * @author Yegor Kozlov |
| */ |
| |
| public final class FontCollection extends RecordContainer { |
| private List<String> fonts; |
| private byte[] _header; |
| |
| protected FontCollection(byte[] source, int start, int len) { |
| // Grab the header |
| _header = new byte[8]; |
| System.arraycopy(source,start,_header,0,8); |
| |
| _children = Record.findChildRecords(source,start+8,len-8); |
| |
| // Save font names into <code>List</code> |
| fonts = new ArrayList<String>(); |
| for (int i = 0; i < _children.length; i++){ |
| if(_children[i] instanceof FontEntityAtom) { |
| FontEntityAtom atom = (FontEntityAtom)_children[i]; |
| fonts.add(atom.getFontName()); |
| } else { |
| logger.log(POILogger.WARN, "Warning: FontCollection child wasn't a FontEntityAtom, was " + _children[i]); |
| } |
| } |
| } |
| |
| /** |
| * Return the type, which is 2005 |
| */ |
| public long getRecordType() { |
| return RecordTypes.FontCollection.typeID; |
| } |
| |
| /** |
| * Write the contents of the record back, so it can be written |
| * to disk |
| */ |
| public void writeOut(OutputStream out) throws IOException { |
| writeOut(_header[0],_header[1],getRecordType(),_children,out); |
| } |
| |
| /** |
| * Add font with the specified name to the font collection. |
| * If the font is already present return its index. |
| * @param name of the font |
| * @return zero based index of the font in the collection |
| */ |
| public int addFont(String name) { |
| int idx = getFontIndex(name); |
| if (idx != -1) return idx; |
| |
| return addFont(name, 0, 0, 4, PPFont.FF_SWISS | PPFont.VARIABLE_PITCH); |
| } |
| |
| public int addFont(String name, int charset, int flags, int type, int pitch) { |
| FontEntityAtom fnt = new FontEntityAtom(); |
| fnt.setFontIndex(fonts.size() << 4); |
| fnt.setFontName(name); |
| fnt.setCharSet(charset); |
| fnt.setFontFlags(flags); |
| fnt.setFontType(type); |
| fnt.setPitchAndFamily(pitch); |
| fonts.add(name); |
| |
| // Append new child to the end |
| appendChildRecord(fnt); |
| |
| return fonts.size()-1; //the added font is the last in the list |
| } |
| |
| /** |
| * @return zero based index of the font in the collection or -1 if not found |
| */ |
| public int getFontIndex(String name) { |
| for (int i = 0; i < fonts.size(); i++) { |
| if(fonts.get(i).equals(name)){ |
| //if the font is already present return its index |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| public int getNumberOfFonts() { |
| return fonts.size(); |
| } |
| |
| /** |
| * Get the name of the font at the given ID, or null if there is |
| * no font at that ID. |
| * @param id |
| */ |
| public String getFontWithId(int id) { |
| if(id >= fonts.size()) { |
| // No font with that id |
| return null; |
| } |
| return fonts.get(id); |
| } |
| } |