/*

 Copyright 2001,2003  The Apache Software Foundation 

 Licensed 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 org.apache.batik.svggen.font.*;

/**
 *
 * @author <a href="mailto:david@steadystate.co.uk">David Schweinsberg</a>
 * @version $Id: ScriptList.java,v 1.4 2004/08/18 07:15:22 vhardy Exp $
 */
public class ScriptList {

    private int scriptCount = 0;
    private final ScriptRecord[] scriptRecords;
    private final Script[] scripts;

    /**
     * Creates new ScriptList
     *
     * @param raf
     * @param offset
     * @throws java.io.IOException
     */
    protected ScriptList(RandomAccessFileEmulator raf, int offset) throws IOException {
        raf.seek(offset);
        scriptCount = raf.readUnsignedShort();
        scriptRecords = new ScriptRecord[scriptCount];
        scripts = new Script[scriptCount];
        for (int i = 0; i < scriptCount; i++) {
            scriptRecords[i] = new ScriptRecord(raf);
        }
        for (int i = 0; i < scriptCount; i++) {
            scripts[i] = new Script(raf, offset + scriptRecords[i].getOffset());
        }
    }

    public int getScriptCount() {
        return scriptCount;
    }

    public ScriptRecord getScriptRecord(int i) {
        return scriptRecords[i];
    }

    public Script findScript(String tag) {
        if (tag.length() != 4) {
            return null;
        }
        int tagVal = ((tag.charAt(0) << 24)
            | (tag.charAt(1) << 16)
            | (tag.charAt(2) << 8)
            | tag.charAt(3));
        for (int i = 0; i < scriptCount; i++) {
            if (scriptRecords[i].getTag() == tagVal) {
                return scripts[i];
            }
        }
        return null;
    }

}