// Copyright 2001, FreeHEP.
package org.freehep.graphicsio.swf;

import java.io.IOException;
import java.util.Vector;

/**
 * DefineButton2 TAG.
 *
 * @author Mark Donszelmann
 * @author Charles Loomis
 * @version $Id: DefineButton2.java,v 1.3 2003/04/16 05:58:26 duns Exp $
 */
public class DefineButton2
    extends DefinitionTag {

    private int character;
    private boolean trackAsMenu;
    private Vector buttons;
    private Vector conditions;

    public DefineButton2(int id, boolean trackAsMenu, Vector buttons, Vector conditions) {
        this();
        character = id;
        this.trackAsMenu = trackAsMenu;
        this.buttons = buttons;
        this.conditions = conditions;
    }

    public DefineButton2() {
        super(34, 3);
    }

    public SWFTag read(int tagID, SWFInputStream swf, int len)
        throws IOException {

        System.out.println(len);

        DefineButton2 tag = new DefineButton2();
        tag.character = swf.readUnsignedShort();
        swf.getDictionary().put(tag.character, tag);
        int reserved = (int)swf.readUBits(7);
        trackAsMenu = swf.readBitFlag();

        // ignored
        int offset = swf.readUnsignedShort();

        tag.buttons = new Vector();
        ButtonRecord record = new ButtonRecord(swf, true);
        while (!record.isEndRecord()) {
            tag.buttons.add(record);
            record = new ButtonRecord(swf, true);
        }

        tag.conditions = new Vector();
        if (offset != 0) {
            int actionOffset;
            do {
                actionOffset = swf.readUnsignedShort();
                tag.conditions.add(new ButtonCondAction(swf));
            } while (actionOffset != 0);
        }
        return tag;
    }

    public void write(int tagID, SWFOutputStream swf)
        throws IOException {

        swf.writeUnsignedShort(character);
        swf.writeUBits(0, 7);
        swf.writeBitFlag(trackAsMenu);

        swf.pushBuffer();
        for (int i=0; i<buttons.size(); i++){
            ButtonRecord b = (ButtonRecord)buttons.get(i);
            b.write(swf);
        }
        swf.writeUnsignedByte(0);
        int offset = swf.popBuffer();
        swf.writeUnsignedShort(offset);
        swf.append();

        for (int i=0; i<conditions.size(); i++) {
            swf.pushBuffer();
            ButtonCondAction c = (ButtonCondAction)conditions.get(i);
            c.write(swf);
            int actionOffset = swf.popBuffer();
            swf.writeUnsignedShort((i == conditions.size()-1) ? 0 : actionOffset);
            swf.append();
        }
    }

    public String toString() {
        StringBuffer s = new StringBuffer();
        s.append(super.toString()+"\n");
        s.append("  character: "+character+"\n");
        s.append("  menu:     "+trackAsMenu+"\n");
        for (int i=0; i<buttons.size(); i++) {
            s.append("  "+buttons.get(i)+"\n");
        }
        for (int i=0; i<conditions.size(); i++) {
            s.append("  "+conditions.get(i)+"\n");
        }
        return s.toString();
    }

}
