/**
* Connects the figure to the new target. If there is no new target the connection reverts to its
* original one.
*/
public void invokeEnd(int x, int y, int anchorX, int anchorY, DrawingView view) {
Connector target = findConnectionTarget(x, y, view.drawing());
if (target == null) {
target = fOriginalTarget;
}
setPoint(x, y);
connect(target);
getConnection().updateConnection();
Connector oldConnector =
((ChangeConnectionHandle.UndoActivity) getUndoActivity()).getOldConnector();
// there has been no change so there is nothing to undo
if ((oldConnector == null)
|| (target() == null)
|| (oldConnector.owner() == target().owner())) {
setUndoActivity(null);
} else {
getUndoActivity().setAffectedFigures(new SingleFigureEnumerator(getConnection()));
}
if (getTargetFigure() != null) {
getTargetFigure().connectorVisibility(false);
setTargetFigure(null);
}
}
/** Finds a new target of the connection. */
public void invokeStep(int x, int y, int anchorX, int anchorY, DrawingView view) {
Point p = new Point(x, y);
Figure f = findConnectableFigure(x, y, view.drawing());
// track the figure containing the mouse
if (f != getTargetFigure()) {
if (getTargetFigure() != null) {
getTargetFigure().connectorVisibility(false);
}
setTargetFigure(f);
if (getTargetFigure() != null) {
getTargetFigure().connectorVisibility(true);
}
}
Connector target = findConnectionTarget(p.x, p.y, view.drawing());
if (target != null) {
p = Geom.center(target.displayBox());
}
setPoint(p.x, p.y);
}
/**
* @param x the x position where the interaction started
* @param y the y position where the interaction started
* @param view the handles container
*/
public void invokeStart(int x, int y, DrawingView view) {
invokeStart(x, y, view.drawing());
}
/**
* Tracks the end of the interaction.
*
* @param x the current x position
* @param y the current y position
* @param anchorX the x position where the interaction started
* @param anchorY the y position where the interaction started
*/
public void invokeEnd(int x, int y, int anchorX, int anchorY, DrawingView view) {
invokeEnd(x - anchorX, y - anchorY, view.drawing());
}
/**
* Creates the drawing view used in this application. You need to override this method to use a
* DrawingView subclass in your application. By default a standard DrawingView is returned.
*/
protected DrawingView createDrawingView() {
DrawingView createdDrawingView = createDrawingView(createDrawing());
createdDrawingView.drawing().setTitle(getDefaultDrawingTitle());
return createdDrawingView;
}