// Now initialize the panel
// Create child value entry panels for the left/right endpoints
RangeValueNode rangeNode = getRangeValueNode();
leftEditor = makeChildValueEntryPanel(rangeNode.getLeftEndpoint());
rightEditor = makeChildValueEntryPanel(rangeNode.getRightEndpoint());
// Define the context for the child editors. The least constrained type expression
// is the expression of the type constructor argument (ie: this is 'Double' if
// the editor value node type is 'Range Double')
ValueEditorContext context = new ValueEditorContext() {