/*
* @(#)ChopBoxConnector.java 5.1
*
*/
package CH.ifa.draw.standard;
import java.awt.Point;
import java.awt.Rectangle;
import CH.ifa.draw.framework.ConnectionFigure;
import CH.ifa.draw.framework.Figure;
import CH.ifa.draw.util.Geom;
/**
* A ChopBoxConnector locates connection points by
* choping the connection between the centers of the
* two figures at the display box.
* @see Connector
*/
public class ChopBoxConnector extends AbstractConnector {
/*
* Serialization support.
*/
private static final long serialVersionUID = -1461450322712345462L;
public ChopBoxConnector() { // only used for Storable implementation
}
public ChopBoxConnector(Figure owner) {
super(owner);
}
public Point findStart(ConnectionFigure connection) {
Figure startFigure = connection.start().owner();
Rectangle r2 = connection.end().displayBox();
Point r2c = null;
if (connection.pointCount() == 2)
r2c = new Point(r2.x + r2.width/2, r2.y + r2.height/2);
else
r2c = connection.pointAt(1);
return chop(startFigure, r2c);
}
public Point findEnd(ConnectionFigure connection) {
Figure endFigure = connection.end().owner();
Rectangle r1 = connection.start().displayBox();
Point r1c = null;
if (connection.pointCount() == 2)
r1c = new Point(r1.x + r1.width/2, r1.y + r1.height/2);
else
r1c = connection.pointAt(connection.pointCount()-2);
return chop(endFigure, r1c);
}
protected Point chop(Figure target, Point from) {
Rectangle r = target.displayBox();
return Geom.angleToPoint(r, (Geom.pointToAngle(r, from)));
}
}