package Nodepad;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
 * GhostNode.java
 *
 *
 * Created: Mon Dec 30 13:56:15 2002
 *
 * @author <a href="mailto:shapiro@cse.buffalo.edu">Stuart C. Shapiro</a>
 * @version
 *
 * An unbordered, integer-valued node
 * that can be moved from one Node to another.
 */

public class GhostNode extends ParentNode {

    /**
     * Creates a GhostNode, with a given Pad, location, and value.
     *
     * @param p the Pad this node is on.
     * @param x the x value of this node's initial location.
     * @param y the y value of this node's initial location.
     * @param v the integer value of this node.
     */

    public GhostNode (Pad p, int x, int y, int v){
	super(p, x, y, v);
	// A GhostNode is only created to drag it somewhere.
	shouldmove = true;
    }

    /**
     * Paints this node as just a value.
     *
     * @param g the Graphics component of this node.
     */
    public void paintComponent(Graphics g) {
	setSize(size);
	setLocation(locpt);
	g.setColor(Color.black);
	//Draw the label, centered, twice the size of the standard font.
	{Font currFont = g.getFont();
	g.setFont(currFont.deriveFont(2*currFont.getSize2D()));}
	g.drawString(label,
		     (size.width - g.getFontMetrics().stringWidth(label))/2,
		     30);
    }

    /**
     * Deletes this GhostNode when it's no longer being dragged.
     */
    public void mouseReleased (MouseEvent evt){
	pad.removeMouseListener(this);
	pad.removeMouseMotionListener(this);
	pad.remove(this);
	pad.repaint(getBounds());
    }    
}// GhostNode