01: /*
02:
03: Licensed to the Apache Software Foundation (ASF) under one or more
04: contributor license agreements. See the NOTICE file distributed with
05: this work for additional information regarding copyright ownership.
06: The ASF licenses this file to You under the Apache License, Version 2.0
07: (the "License"); you may not use this file except in compliance with
08: the License. You may obtain a copy of the License at
09:
10: http://www.apache.org/licenses/LICENSE-2.0
11:
12: Unless required by applicable law or agreed to in writing, software
13: distributed under the License is distributed on an "AS IS" BASIS,
14: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15: See the License for the specific language governing permissions and
16: limitations under the License.
17:
18: */
19: package org.apache.batik.svggen.font.table;
20:
21: import java.io.IOException;
22: import java.io.RandomAccessFile;
23:
24: /**
25: *
26: * @author <a href="mailto:david@steadystate.co.uk">David Schweinsberg</a>
27: * @version $Id: FeatureList.java 475477 2006-11-15 22:44:28Z cam $
28: */
29: public class FeatureList {
30:
31: private int featureCount;
32: private FeatureRecord[] featureRecords;
33: private Feature[] features;
34:
35: /** Creates new FeatureList */
36: public FeatureList(RandomAccessFile raf, int offset)
37: throws IOException {
38: raf.seek(offset);
39: featureCount = raf.readUnsignedShort();
40: featureRecords = new FeatureRecord[featureCount];
41: features = new Feature[featureCount];
42: for (int i = 0; i < featureCount; i++) {
43: featureRecords[i] = new FeatureRecord(raf);
44: }
45: for (int i = 0; i < featureCount; i++) {
46: features[i] = new Feature(raf, offset
47: + featureRecords[i].getOffset());
48: }
49: }
50:
51: public Feature findFeature(LangSys langSys, String tag) {
52: if (tag.length() != 4) {
53: return null;
54: }
55: int tagVal = ((tag.charAt(0) << 24) | (tag.charAt(1) << 16)
56: | (tag.charAt(2) << 8) | tag.charAt(3));
57: for (int i = 0; i < featureCount; i++) {
58: if (featureRecords[i].getTag() == tagVal) {
59: if (langSys.isFeatureIndexed(i)) {
60: return features[i];
61: }
62: }
63: }
64: return null;
65: }
66:
67: }
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