/*

   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.batik.svggen.font.table;

import java.io.IOException;
import java.io.RandomAccessFile;

/**
 *
 * @author <a href="mailto:david@steadystate.co.uk">David Schweinsberg</a>
 * @version $Id$
 */
public class Lookup {

    // LookupFlag bit enumeration
    public static final int IGNORE_BASE_GLYPHS = 0x0002;
    public static final int IGNORE_BASE_LIGATURES = 0x0004;
    public static final int IGNORE_BASE_MARKS = 0x0008;
    public static final int MARK_ATTACHMENT_TYPE = 0xFF00;

    private int type;
    private int flag;
    private int subTableCount;
    private int[] subTableOffsets;
    private LookupSubtable[] subTables;

    /** Creates new Lookup */
    public Lookup(LookupSubtableFactory factory, RandomAccessFile raf, int offset)
    throws IOException {
        raf.seek(offset);
        type = raf.readUnsignedShort();
        flag = raf.readUnsignedShort();
        subTableCount = raf.readUnsignedShort();
        subTableOffsets = new int[subTableCount];
        subTables = new LookupSubtable[subTableCount];
        for (int i = 0; i < subTableCount; i++) {
            subTableOffsets[i] = raf.readUnsignedShort();
        }
        for (int i = 0; i < subTableCount; i++) {
            subTables[i] = factory.read(type, raf, offset + subTableOffsets[i]);
        }
    }

    public int getType() {
        return type;
    }

    public int getSubtableCount() {
        return subTableCount;
    }

    public LookupSubtable getSubtable(int i) {
        return subTables[i];
    }

}

