/*   
SimpleFlobConnector.zob
 *    
 *    Copyright (c) 2000, Ted Nelson and Tuomas Lukka
 *
 *    You may use and distribute under the terms of either the GNU Lesser
 *    General Public License, either version 2 of the license or,
 *    at your choice, any later version. Alternatively, you may use and
 *    distribute under the terms of the XPL.
 *
 *    See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of 
 *    the licenses.
 *
 *    This software 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 README
 *    file for more details.
 *
 */
/*
 * Written by Tuomas Lukka
 */

package org.gzigzag;
import java.util.*;
import java.awt.*;

/** A simple but powerful raster which uses flob coordinates.
 * Z is the selection dimension, X and Y are the flob dimension
 * specifications.
 */

public class SimpleFlobConnector implements FlobDecorator, ZOb {
public static final String rcsid = "$Id: SimpleFlobConnector.zob,v 1.9 2000/09/19 10:31:59 ajk Exp $";
    public static boolean dbg = false;
    static final void p(String s) { if(dbg) System.out.println(s); }
    static final void pa(String s) { System.out.println(s); }

    STRUCTPARAMS {

	/** Whether the selection dimension is always d.2 or
	 * whether it is the Z dimension.
	 */
	boolean selectd2 
	    = true;

	/** The path from one handle cell to another.
	 */
	ZZPath connection
	    = null;
    }

    int count;
    // public SimpleFlobConnector() { }

    // Always middle - to - middle.
    public void decorate(final FlobSet f, final String path,
	final ZZCell view) {

	p("SIMPLEFLOBCNNETOR DECORATE!");
	count = 0;

	final Hashtable done = new Hashtable();

	if(connection == null)
	    throw new ZZError("Must provide value for FlobConnector connection");

	final ConnectionLineDecor.Builder clb = new 
		ConnectionLineDecor.Builder(f, null);
	clb.startl(100, 1);

	f.iterDepth(new FlobSet.DepthIter() {
	    public void act(Flob[] flobs, int start, int n) {
		
		for(int i=start; i<start+n; i++) {
		    Flob cur = flobs[i];
		    if(cur.c == null || !cur.flobPath.equals(path))
			continue;
		    // Now, cur.c is the HANDLE cell. So we know
		    // we can go from it to another handle and
		    // search the flobset for that.

		    // XXX Should also show non-existing parents or
		    // children as stubs.. ???

		    ZZCell ohandle = connection.readFrom(cur.c, false);
		    if(ohandle == null) continue;

		    Flob parent = f.findFlob(path, ohandle);
		    if(parent == null) continue;

		    count++;
		    clb.l(parent, 128, 128, cur, 128, 128);

		}
	    }
	}, true);

	p("SIMPLEFLOBCNNETOR DECORATED "+count);

	clb.endl();
    }

}


// vim: set syntax=java :