@Override
public boolean canExecute() {
List<DiagramNodeModel> nodes = getDiagramConnectionModel().getDiagramModel().getNodes();
Point location = getLocation();
for (DiagramNodeModel node : nodes) {
if (pointInBounds(location, node.getShapePresentation().getFigure().getBounds())) {
return false;
}
}
return true;
}
@Override
public void execute() {
DiagramModel diagramModel = node.getDiagramModel();
// Make a copy of all the connections that are attached to this node before setting the
// node label.
List<DiagramConnectionModel> connModels = diagramModel.getConnections();
List<DiagramConnectionPart> connParts1 = new ArrayList<DiagramConnectionPart>();
List<DiagramConnectionPart> connParts2 = new ArrayList<DiagramConnectionPart>();
for (DiagramConnectionModel connModel : connModels) {
// Need to disable connection part listeners so the attached connections don't get deleted.
// Will re-enable them once the end points are refreshed.
if (connModel.getSourceNode().equals(node) || (connModel.getTargetNode().equals(node))) {
DiagramConnectionPart connPart = connModel.getModelPart();
connPart.removeModelListener();
connPart.getDiagramConnectionTemplate().removeModelListener();
if (connModel.getSourceNode().equals(node)) {
connParts1.add(connModel.getModelPart());
} else if (connModel.getTargetNode().equals(node)) {
connParts2.add(connModel.getModelPart());
}
}
}
Value<?> prop =
FunctionUtil.getFunctionProperty(
this.textPart.getLocalModelElement(), this.textPart.getContentFunction());
prop.write(this.labelText);
// Refreshing endpoints of attached connections and re-enable listeners on them.
for (DiagramConnectionPart connPart : connParts1) {
if (!connPart.disposed()) {
connPart.resetEndpoint1();
connPart.addModelListener();
connPart.getDiagramConnectionTemplate().addModelListener();
}
}
for (DiagramConnectionPart connPart : connParts2) {
if (!connPart.disposed()) {
connPart.resetEndpoint2();
connPart.addModelListener();
connPart.getDiagramConnectionTemplate().addModelListener();
}
}
}