nknode.java

NetGUI v0.4.1 INSTALL Instructions Pedro de la

/*
 * Copyright (C) 2005, 2006 
 * Santiago Carot Nemesio
 *
 * This file is part of NetGUI.
 *
 * NetGUI 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.
 * 
 * NetGUI 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 NetGUI; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *  
 */

/*

*******************************************************************
* NKNode es una clase que establece todas las propiedades de los 
* nodos que se definen sobre NetKit en Picolo.
*******************************************************************

*/

import java.awt.Dimension;
import java.awt.event.InputEvent;
import java.awt.event.MouseEvent;
import java.awt.geom.Point2D;
import java.util.*;
import java.lang.*;

import edu.umd.cs.piccolo.*;
import edu.umd.cs.piccolo.PCanvas;
import edu.umd.cs.piccolo.nodes.*;
import edu.umd.cs.piccolox.*;
import edu.umd.cs.piccolox.nodes.*;
import edu.umd.cs.piccolo.event.*;
import edu.umd.cs.piccolo.util.*;

public abstract class NKNode extends PImage
{
	private String name;
	private PImage image;
	private PImage selected_image;
	private PImage deleted_image;
	
	
	
	/*************************************************************
	 * Constructor de la clase
	 *************************************************************/
	public NKNode (String name, String imgFile, String img_selectedFile, String img_deletedFile)
	{
		super(imgFile);
		this.name = name;
		image = new PImage(imgFile);
		selected_image = new PImage(img_selectedFile);
		deleted_image = new PImage(img_deletedFile);
		ShowDisplayName(name);
	}
	
	/********************************************
	 * Devuelve el nombre del nodo
	 ********************************************/
	public String getName () {return name;}
	
	/*************************************************************
	 * A馻de una conexi髇 al nodo
	 *************************************************************/
	public abstract void addEdge (NKConection edge);
	
	/*************************************************************
	 * Elimina una conexi髇 del nodo
	 *************************************************************/
	public abstract void removeEdge (NKConection edge);
	
	/*************************************************************
	 * Compara este nodo con otro
	 * (Devuelve true si tienen el mismo nombre)
	 *************************************************************/
	public boolean equals (NKNode n)
	{
		return name.equalsIgnoreCase(n.getName());
	}
	
	/*************************************************************
	 * Actualiza todas las conexiones del nodo para poder
	 * representarlas en pantalla cuando el nodo es arrastrado
	 *************************************************************/
	public abstract void updateEdges ();
	
	/*************************************************************
	 * establece la imagen para el icono cuando es seleccionado
	 *************************************************************/
	public void setSelectedImage ()
	{
		setImage(selected_image.getImage());
	}
	
	/*************************************************************
	 * establece la imagen para el icono cuando deja de ser
	 * seleccionado
	 *************************************************************/
	public void setNormalImage ()
	{
		setImage(image.getImage());
	}
	
	/*************************************************************
	 * establece la imagen para el icono cuando va a ser eliminado
	 *************************************************************/
	public void setDeleteImage ()
	{
		setImage(deleted_image.getImage());
	}
	
	 
	/*************************************************************
	 * cambia la imagen para el icono cuando es
	 * seleccionado
	 *************************************************************/
	protected void changeSelectedImage (String newImage)
	{
		selected_image = new PImage(newImage);
		setSelectedImage();
	}
	
	/*************************************************************
	 * cambia la imagen para el icono cuando deja de
	 * ser seleccionado
	 *************************************************************/
	protected void changeNormalImage (String newImage)
	{
		image = new PImage(newImage);
		setNormalImage();
	}
	
	
	/*************************************************************
	 * Posiciona el nombre del nodo en el icono
	 *************************************************************/
	protected abstract void ShowDisplayName (String name);
}