question: public boolean doMouseDragged ( Positionable selection , MouseEvent event ) { if ( _editCircuitFrame != null || _editPathsFrame != null ) { return true ; } if ( _editPortalFrame != null || _editDirectionFrame != null ) { if ( selection instanceof PortalIcon ) { _editor . highlight ( selection ) ; return false ; } return true ; } return false ; }
target:  No dragging when CircuitBuilder is in progress, except for PortalIcon