/**
* Routes the given connection. Calls the 'next' router first (if one exists) and if no bendpoints
* were added by the next router, collisions are dealt with by calling {@link
* #handleCollision(PointList, int)}.
*
* @param conn The connection to route
*/
public void route(Connection conn) {
if (next() != null) next().route(conn);
else {
conn.getPoints().removeAllPoints();
setEndPoints(conn);
}
if (conn.getPoints().size() == 2) {
PointList points = conn.getPoints();
HashKey connectionKey = new HashKey(conn);
ArrayList connectionList = connections.get(connectionKey);
if (connectionList != null) {
int index;
if (connectionList.contains(conn)) {
index = connectionList.indexOf(conn) + 1;
} else {
index = connectionList.size() + 1;
connections.put(connectionKey, conn);
}
handleCollision(points, index);
conn.setPoints(points);
} else {
connections.put(connectionKey, conn);
}
}
}
/**
* Sets the start and end points for the given connection.
*
* @param conn The connection
*/
protected void setEndPoints(Connection conn) {
PointList points = conn.getPoints();
points.removeAllPoints();
Point start = getStartPoint(conn);
Point end = getEndPoint(conn);
conn.translateToRelative(start);
conn.translateToRelative(end);
points.addPoint(start);
points.addPoint(end);
conn.setPoints(points);
}
