/* * 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.fontbox.ttf; import java.io.IOException; /** * A table in a true type font. * * @author Ben Litchfield (ben@benlitchfield.com) * @version $Revision: 1.1 $ */ public class IndexToLocationTable extends TTFTable { private static final short SHORT_OFFSETS = 0; private static final short LONG_OFFSETS = 1; /** * A tag that identifies this table type. */ public static final String TAG = "loca"; private long[] offsets; /** * This will read the required data from the stream. * * @param ttf The font that is being read. * @param data The stream to read the data from. * @throws IOException If there is an error reading the data. */ public void initData( TrueTypeFont ttf, TTFDataStream data ) throws IOException { HeaderTable head = ttf.getHeader(); MaximumProfileTable maxp = ttf.getMaximumProfile(); int numGlyphs = maxp.getNumGlyphs(); offsets = new long[ numGlyphs +1]; for( int i=0; i<numGlyphs+1; i++ ) { if( head.getIndexToLocFormat() == SHORT_OFFSETS ) { offsets[i] = data.readUnsignedShort() * 2; } else if( head.getIndexToLocFormat() == LONG_OFFSETS ) { offsets[i] = data.readUnsignedInt(); } else { throw new IOException( "Error:TTF.loca unknown offset format."); } } } /** * @return Returns the offsets. */ public long[] getOffsets() { return offsets; } /** * @param offsetsValue The offsets to set. */ public void setOffsets(long[] offsetsValue) { this.offsets = offsetsValue; } }