@Override
public void execute() {
// configure the request
EditPart source = request.getSourceEditPart();
EditPart target = request.getTargetEditPart();
PointList list = feedback.getPoints();
DiagramEditPart diagramEditPart = null;
if (source.getParent() instanceof DiagramEditPart) {
diagramEditPart = (DiagramEditPart) source.getParent();
} else if (source instanceof DiagramEditPart) {
diagramEditPart = (DiagramEditPart) source;
} else {
if (source.getParent().getParent() instanceof DiagramEditPart) {
diagramEditPart = (DiagramEditPart) source.getParent().getParent();
}
}
if (diagramEditPart == null) {
return;
}
if (!(source instanceof DiagramEditPart || target instanceof DiagramEditPart)) {
// one must be whitespace, we make it the target
request.setTargetEditPart(diagramEditPart);
// additionally we must cut the drawn connection
// in half to share room with the element that will
// be auto-created
PointList newList = new PointList();
newList.addPoint(list.getFirstPoint());
if (list.size() == 4) {
// rectilinear routing will have a three points
newList.addPoint(list.getPoint(1));
}
newList.addPoint(list.getMidpoint());
feedback.setPoints(newList);
}
// create the active tool's element first
CreateConnectionCommand command = new CreateConnectionCommand(request, feedback);
command.execute();
Connector_c newConnector = command.result;
if (newConnector == null) {
return;
}
// we need to now refresh the diagram to get the new edit part
source.refresh();
source.getParent().refresh();
GraphicalEditPart newPart =
(GraphicalEditPart) source.getViewer().getEditPartRegistry().get(newConnector);
// transfer the feedback connection points to the newly created
// edit part
((Connection) newPart.getFigure()).setPoints(feedback.getPoints().getCopy());
// now adjust the request for the new element to be created for each
// terminal specification that requires auto-creation
createElementForTerminalSpec(
autoStartSpec,
((NonRootModelElement) diagramEditPart.getModel()).getModelRoot(),
list,
newPart,
target,
diagramEditPart);
createElementForTerminalSpec(
autoEndSpec,
((NonRootModelElement) diagramEditPart.getModel()).getModelRoot(),
list,
newPart,
target,
diagramEditPart);
}
private void createElementForTerminalSpec(
TerminalSpecification_c autoCreationSpec,
ModelRoot modelRoot,
PointList line,
EditPart newPart,
EditPart targetPart,
final DiagramEditPart diagramEditPart) {
ElementSpecification_c specification =
ElementSpecification_c.getOneGD_ESOnR209(autoCreationSpec);
if (specification != null && request instanceof GraphicsConnectionCreateRequest) {
// deactivate the current tool
ModelTool_c activeTool =
ModelTool_c.ModelToolInstance(
modelRoot,
new ClassQueryInterface_c() {
@Override
public boolean evaluate(Object candidate) {
return ((ModelTool_c) candidate).getActive();
}
});
activeTool.setActive(false);
// find the new tool and activate it
ModelTool_c newTool =
ModelTool_c.getOneCT_MTLOnR103(
specification,
new ClassQueryInterface_c() {
@Override
public boolean evaluate(Object candidate) {
ModelTool_c tool = (ModelTool_c) candidate;
return Model_c.getOneGD_MDOnR100(tool) == diagramEditPart.getModel();
}
});
newTool.setActive(true);
// create the new element
if (specification.getSymboltype().equals("connector")) { // $NON-NLS-1$
// creating a connector
// we want to create the new connector from the
// midpoint of the drawn line to the end of the
// drawn line
PointList newLine = new PointList();
newLine.addPoint(line.getLastPoint());
if (line.size() == 4) {
// rectilinear routing will have a three points
newLine.addPoint(line.getPoint(2));
}
newLine.addPoint(line.getMidpoint());
feedback.setPoints(newLine);
// we also need to adjust the request's source and
// target edit part, we swap the original target as the
// source as if the new connection was drawn from
// the original destination element
request.setTargetEditPart(newPart);
request.setSourceEditPart(targetPart);
// need to update the location in the request for
// those connectors that end on whitespace
request.setLocation(line.getMidpoint());
// we need to configure the proper tool id in the
// request
GraphicsConnectionCreateRequest gRequest = (GraphicsConnectionCreateRequest) request;
gRequest.setToolId(newTool.getTool_id());
CreateConnectionCommand command = new CreateConnectionCommand(request, feedback);
command.disableCropping();
command.execute();
// reset the active tool states
newTool.setActive(false);
activeTool.setActive(true);
} else if (specification.getSymboltype().equals("shape")) { // $NON-NLS-1$
// TODO: support shape auto creation
}
}
// otherwise this is not an auto create specification
}