public void renderInJGraph() {
/** the real renderer */
ConnectionSet cs = new ConnectionSet();
Map<Object, AttributeMap> attributes = new Hashtable<Object, AttributeMap>();
for (DefaultEdge linkEdge : retrieveLinks()) {
DefaultPort srcPort = (DefaultPort) linkEdge.getSource();
DefaultPort trgtPort = (DefaultPort) linkEdge.getTarget();
DefaultGraphCell sourceCell = (DefaultGraphCell) srcPort.getParent();
DefaultGraphCell targetCell = (DefaultGraphCell) trgtPort.getParent();
AttributeMap lineStyle = linkEdge.getAttributes();
AttributeMap sourceNodeCellAttribute = null;
if (sourceCell != null) sourceNodeCellAttribute = sourceCell.getAttributes();
AttributeMap targetNodeCellAttribute = null;
if (targetCell != null) targetNodeCellAttribute = targetCell.getAttributes();
Object sourceNode = srcPort.getUserObject();
Object targetNode = trgtPort.getUserObject();
try {
if (sourceNode instanceof DefaultMappableTreeNode) {
if ((targetNode instanceof DefaultMappableTreeNode)) {
// change target node
DefaultMutableTreeNode treeNode = (DefaultMutableTreeNode) targetNode;
adjustToNewPosition(treeNode, targetNodeCellAttribute);
}
// change source node
DefaultMutableTreeNode srcNode = (DefaultMutableTreeNode) sourceNode;
adjustToNewPosition(srcNode, sourceNodeCellAttribute);
}
if (sourceNodeCellAttribute != null
&& targetNodeCellAttribute
!= null) { // put in attribute if and only if it is constructed.
attributes.put(sourceCell, sourceNodeCellAttribute);
attributes.put(targetCell, targetNodeCellAttribute);
attributes.put(linkEdge, lineStyle);
// cs.connect(linkEdge, sourceCell.getChildAt(0), targetCell.getChildAt(0));
// Log.logInfo(this, "Drew line for : " + mappingComponent.toString());
}
} catch (Throwable e) {
e.printStackTrace();
// Log.logInfo(this, "Did not draw line for : " + mappingComponent.toString(true));
}
} // end of for
getGraph().getGraphLayoutCache().edit(attributes, cs, null, null);
getGraph().getGraphLayoutCache().setSelectsAllInsertedCells(false);
}
// Connection logic.
// The deletion is acceptable if the resulting relationship is valid.
// selected are the nodes to removed.
public boolean acceptRemove(GraphCell[] selected) {
// All roles considered in the relationship.
List roles = this.getOrderedRoles();
// Valid deletion.
boolean ok = true;
// Check all roles.
for (int i = 0; i < roles.size(); i++) {
String roleName = (String) roles.get(i);
Integer minAllowedTimes = this.getArity(roleName, true);
Integer maxAllowedTimes = this.getArity(roleName, false);
// Objects playing roleName in this relationship.
GraphCell[] roleObjects = this.getObjects(roleName);
// newUse is roleObjects number minus those objects in selected (which will be removed).
int currentUse = roleObjects.length;
for (int j = 0; j < roleObjects.length; j++)
for (int k = 0; k < selected.length; k++) {
// Object to be compared with roleObjects.
Object object = null;
// Default Edge.
if (selected[k] instanceof DefaultEdge) {
DefaultPort targetPort = (DefaultPort) ((DefaultEdge) selected[k]).getTarget();
object = targetPort.getParent();
// Vertex
} else if ((selected[k] instanceof DefaultGraphCell)
&& !(selected[k] instanceof DefaultPort)) {
object = selected[k];
}
// If the object is in the deleted list, there is one less object playing the role.
if (roleObjects[j].equals(object)) currentUse--;
}
// Check the role for the deletion.
ok =
ok
&& (minAllowedTimes.intValue() <= currentUse)
&& (currentUse <= maxAllowedTimes.intValue());
}
return ok;
}