/** Adds a new group to our tree and element model. */
final void addNewGroup() {
DefaultTreeModel model = (DefaultTreeModel) this.tree.getModel();
boolean groupSummaryVisibleByDefault = UIManager.getBoolean(GROUP_SUMMARY_VISIBLE_DEFAULT);
boolean scopeVisibleByDefault = UIManager.getBoolean(ANALOG_SCOPE_VISIBLE_DEFAULT);
int groupCount = this.model.getGroups().size();
String name = String.format("Group %d", Integer.valueOf(groupCount + 1));
// Create model structure...
ElementGroup newGroup = this.model.addGroup(name);
newGroup.setVisible(true);
SignalElement groupSummaryElement = SignalElement.createGroupSummaryElement(newGroup);
groupSummaryElement.setEnabled(groupSummaryVisibleByDefault);
newGroup.addElement(groupSummaryElement);
SignalElement analogScopeElement = SignalElement.createAnalogScopeElement(newGroup);
analogScopeElement.setEnabled(scopeVisibleByDefault);
newGroup.addElement(analogScopeElement);
// Create tree structure...
ElementTreeNode rootNode = (ElementTreeNode) model.getRoot();
ElementTreeNode groupNode = new ElementTreeNode(newGroup);
rootNode.add(groupNode);
groupNode.add(new ElementTreeNode(groupSummaryElement));
groupNode.add(new ElementTreeNode(analogScopeElement));
int index = rootNode.getIndex(groupNode);
model.nodesWereInserted(rootNode, new int[] {index});
model.nodeStructureChanged(groupNode);
this.tree.expandRow(index);
}
