/* dIntProg Browser. A webbrowser written in Java.
 * Copyright (C) 2001 Martin Geisler <gimpster@gimpster.com>
 *  
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the
 * 
 * Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

import java.awt.Graphics;
import java.awt.Color;
import javax.swing.*;
import java.util.*;

/** An unordered list eg. one with bullits before each item. */
public class UnorderedList extends VerticalBoxStack {

    private final int diameter = 10;
    private final int hspace = 6;
    private final int vspace = 4;
    private int nesting;

    public UnorderedList(int n) {
        nesting = n;
    }

    public void doLayout(Graphics g, JComponent c, int w) {
        super.doLayout(g, c, w - diameter - 2*hspace);
        width = w;
        if (height < diameter + 2*vspace) {
            height = diameter + 2*vspace;
        }
    }

    
    /** The minimum width of this box. This is the greatest of the
     *  minimum widths of all the child-boxes.
     *  @return the minimum width of the box. */
    public int getMinimumWidth() {
        if (min_width == -1) {
            int w = 0;
            ListIterator iterator = boxes.listIterator();
            while (iterator.hasNext()) {
                Box b = (Box)iterator.next();
                w = b.getMinimumWidth();
                Browser.debug("UnorderedList: min width is " + w + " of " + b);
                if (w > min_width) {
                    min_width = w;
                }
            }
	    min_width += diameter + 2*hspace;
        }
	return min_width;
    }


    public void drawAt(int x, int y, DocumentView v) {
        int y_offset = 0;

        ListIterator iterator = boxes.listIterator();
        while (iterator.hasNext()) {
            if (nesting % 2 == 0) {
                v.fillOval(x + hspace,
                           y + vspace + y_offset,
                           diameter, diameter, Color.black);
            } else {
                v.drawOval(x + hspace,
                           y + vspace + y_offset,
                           diameter, diameter, Color.black);
            }                
            Box b = (Box)iterator.next();
            b.drawAt(x+diameter+2*hspace, y+y_offset, v);
            y_offset = y_offset + b.getHeight();
        }
    }

}