/**
* 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);
}
}
}
/** @see org.eclipse.draw2d.ConnectionRouter#invalidate(Connection) */
public void invalidate(Connection conn) {
if (next() != null) next().invalidate(conn);
if (conn.getSourceAnchor() == null || conn.getTargetAnchor() == null) return;
HashKey connectionKey = new HashKey(conn);
ArrayList connectionList = connections.get(connectionKey);
int affected = connections.remove(connectionKey, conn);
if (affected != -1) {
for (int i = affected; i < connectionList.size(); i++)
((Connection) connectionList.get(i)).revalidate();
} else connections.removeValue(conn);
}
/** @see org.eclipse.draw2d.ConnectionRouter#remove(Connection) */
public void remove(Connection conn) {
if (conn.getSourceAnchor() == null || conn.getTargetAnchor() == null) return;
HashKey connectionKey = new HashKey(conn);
ArrayList connectionList = connections.get(connectionKey);
if (connectionList != null) {
int index = connections.remove(connectionKey, conn);
for (int i = index + 1; i < connectionList.size(); i++)
((Connection) connectionList.get(i)).revalidate();
}
if (next() != null) next().remove(conn);
}