@Override
public void relocate(IFigure target) {
Rectangle bounds = target.getBounds().getCopy();
Point location = null;
if (parent instanceof ConnectorEditPart) {
ConnectorEditPart connectorPart = (ConnectorEditPart) parent;
PointList points = getPoints(connectorPart.getConnectionFigure());
location = getPointForEnd(points);
} else {
// if the parent is any other edit part
// use the bounds center
location = parent.getFigure().getBounds().getCenter();
}
if (lastLocation == null) {
lastLocation = location;
}
Dimension delta = location.getDifference(lastLocation);
bounds.translate(delta.width, delta.height);
lastLocation = location.getCopy();
// if the current width is 0 then the
// user has never set the width, calculate it
// here using a maximum number of 400
boolean cropWidth = false;
if (bounds.width == 0) {
Dimension preferred = target.getPreferredSize();
bounds.width = preferred.width;
bounds.width = Math.min(400, bounds.width);
cropWidth = true;
}
if (bounds.width < target.getBorder().getInsets(target).getWidth()) {
// do not allow resizing to zero
bounds.width = target.getBorder().getInsets(target).getWidth();
}
// we must set the bounds to allow recalculation
// of text height (wrapping)
target.setBounds(bounds);
target.validate();
// adjust height to account for word wrapping
bounds.height = getMinimumHeight(target);
if (cropWidth) {
// crop the width here, as this is not a user set
// width and otherwise if near 400 may leave extra
// slack
bounds.width = getMinimumWidth(target);
}
target.setBounds(bounds);
}
/**
* Due to the on the fly creation of bendpoints we must gather the points using the routing
* constraint as the connection may not be routed yet, meaning the points in the connection are
* not up to date
*
* @param connectionFigure
* @return
*/
private PointList getPoints(Connection connectionFigure) {
PointList points = new PointList();
if (connectionFigure.getConnectionRouter() instanceof RectilinearRouter) {
points.addAll(connectionFigure.getPoints());
((RectilinearRouter) connectionFigure.getConnectionRouter()).route(connectionFigure);
return points;
} else {
List<?> bendpoints =
(List<?>) connectionFigure.getConnectionRouter().getConstraint(connectionFigure);
if (bendpoints == null) {
bendpoints = Collections.EMPTY_LIST;
}
Point firstPoint = connectionFigure.getPoints().getFirstPoint();
Point lastPoint = connectionFigure.getPoints().getLastPoint();
if ((firstPoint.x == 100 && firstPoint.y == 100)
|| (lastPoint.x == 100 && lastPoint.y == 100)) {
// the connection may need to be routed
// as well as the source and target if connectors
if (parent instanceof ConnectorEditPart) {
ConnectorEditPart con = (ConnectorEditPart) parent;
if (con.getSource() instanceof ConnectorEditPart) {
ConnectorEditPart source = (ConnectorEditPart) con.getSource();
source.getConnectionFigure().getConnectionRouter().route(source.getConnectionFigure());
}
if (con.getTarget() instanceof ConnectorEditPart) {
ConnectorEditPart target = (ConnectorEditPart) con.getTarget();
target.getConnectionFigure().getConnectionRouter().route(target.getConnectionFigure());
}
}
connectionFigure.getConnectionRouter().route(connectionFigure);
}
if (connectionFigure.getPoints().size() != bendpoints.size()) {
// rectilinear will have the start and end points in the
// routing constraint
points.addPoint(connectionFigure.getPoints().getFirstPoint());
}
for (int i = 0; i < bendpoints.size(); i++) {
Bendpoint bp = (Bendpoint) bendpoints.get(i);
points.addPoint(bp.getLocation());
}
if (connectionFigure.getPoints().size() != bendpoints.size()) {
points.addPoint(connectionFigure.getPoints().getLastPoint());
}
}
return points;
}