/*******************************************************************************
* Copyright (c) 2000, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.gef.examples.logicdesigner.figures;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Vector;
import org.eclipse.draw2d.ConnectionAnchor;
import org.eclipse.draw2d.Figure;
import org.eclipse.draw2d.geometry.Point;
public class NodeFigure
extends Figure
{
protected Hashtable connectionAnchors = new Hashtable(7);
protected Vector inputConnectionAnchors = new Vector(2,2);
protected Vector outputConnectionAnchors = new Vector(2,2);
public ConnectionAnchor connectionAnchorAt(Point p) {
ConnectionAnchor closest = null;
long min = Long.MAX_VALUE;
Enumeration e = getSourceConnectionAnchors().elements();
while (e.hasMoreElements()) {
ConnectionAnchor c = (ConnectionAnchor) e.nextElement();
Point p2 = c.getLocation(null);
long d = p.getDistance2(p2);
if (d < min) {
min = d;
closest = c;
}
}
e = getTargetConnectionAnchors().elements();
while (e.hasMoreElements()) {
ConnectionAnchor c = (ConnectionAnchor) e.nextElement();
Point p2 = c.getLocation(null);
long d = p.getDistance2(p2);
if (d < min) {
min = d;
closest = c;
}
}
return closest;
}
public ConnectionAnchor getConnectionAnchor(String terminal) {
return (ConnectionAnchor)connectionAnchors.get(terminal);
}
public String getConnectionAnchorName(ConnectionAnchor c){
Enumeration keys = connectionAnchors.keys();
String key;
while (keys.hasMoreElements()){
key = (String)keys.nextElement();
if (connectionAnchors.get(key).equals(c))
return key;
}
return null;
}
public ConnectionAnchor getSourceConnectionAnchorAt(Point p) {
ConnectionAnchor closest = null;
long min = Long.MAX_VALUE;
Enumeration e = getSourceConnectionAnchors().elements();
while (e.hasMoreElements()) {
ConnectionAnchor c = (ConnectionAnchor) e.nextElement();
Point p2 = c.getLocation(null);
long d = p.getDistance2(p2);
if (d < min) {
min = d;
closest = c;
}
}
return closest;
}
public Vector getSourceConnectionAnchors() {
return outputConnectionAnchors;
}
public ConnectionAnchor getTargetConnectionAnchorAt(Point p) {
ConnectionAnchor closest = null;
long min = Long.MAX_VALUE;
Enumeration e = getTargetConnectionAnchors().elements();
while (e.hasMoreElements()) {
ConnectionAnchor c = (ConnectionAnchor) e.nextElement();
Point p2 = c.getLocation(null);
long d = p.getDistance2(p2);
if (d < min) {
min = d;
closest = c;
}
}
return closest;
}
public Vector getTargetConnectionAnchors() {
return inputConnectionAnchors;
}
}