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: Coverage.java 475477 2006-11-15 22:44:28Z cam $
28: */
29: public abstract class Coverage {
30:
31: public abstract int getFormat();
32:
33: /**
34: * @param glyphId The ID of the glyph to find.
35: * @return The index of the glyph within the coverage, or -1 if the glyph
36: * can't be found.
37: */
38: public abstract int findGlyph(int glyphId);
39:
40: protected static Coverage read(RandomAccessFile raf)
41: throws IOException {
42: Coverage c = null;
43: int format = raf.readUnsignedShort();
44: if (format == 1) {
45: c = new CoverageFormat1(raf);
46: } else if (format == 2) {
47: c = new CoverageFormat2(raf);
48: }
49: return c;
50: }
51:
52: }
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