TransitionAction.java

package pipe.actions.gui;

import pipe.controllers.PetriNetController;
import pipe.historyActions.component.AddPetriNetObject;
import uk.ac.imperial.pipe.models.petrinet.Connectable;
import uk.ac.imperial.pipe.models.petrinet.DiscreteTransition;
import uk.ac.imperial.pipe.models.petrinet.PetriNet;
import uk.ac.imperial.pipe.models.petrinet.Transition;

import java.awt.Point;
import java.awt.event.MouseEvent;

/**
 * Abstract class to created timed/untimed transactions
 */
@SuppressWarnings("serial")
public abstract class TransitionAction extends CreateAction {

    /**
     * Constructor
     * @param name of the action
     * @param tooltip for the action 
     * @param key keyboard shortcut 
     * @param modifiers of the action 
     * @param applicationModel for PIPE
     */
    public TransitionAction(String name, String tooltip, int key, int modifiers,
                            PipeApplicationModel applicationModel) {
        super(name, tooltip, key, modifiers, applicationModel);
    }

    /**
     * When the cnavas is clicked on a new transition is created
     * @param event              mouse event
     * @param petriNetController controller for the petri net
     */
    @Override
    public void doAction(MouseEvent event, PetriNetController petriNetController) {
        if (event.getClickCount() > 0) {
            Point point = event.getPoint();
            Transition transition = newTransition(point, petriNetController);
            PetriNet net = petriNetController.getPetriNet();

            registerUndoEvent(new AddPetriNetObject(transition, net));
        }
    }

    /**
     * Noop action
     * @param connectable        item clicked
     * @param petriNetController controller for the petri net
     */
    @Override
    public void doConnectableAction(Connectable connectable, PetriNetController petriNetController) {
        // Do nothing if clicked on existing connectable
    }

    /**
     *
     * @param point coordinate 
     * @param petriNetController controller 
     * @return new transition  at the (x,y) of point
     */
    private Transition newTransition(Point point, PetriNetController petriNetController) {
        //TODO: MOVE THIS OUT TO CONTROLLER, ALSO NEED TO ADD TO PETRINET MODEL...
        String id = getNetTransitionName(petriNetController);
        Transition transition = new DiscreteTransition(id, id);
        transition.setX(point.x);
        transition.setY(point.y);
        transition.setTimed(isTimed());

        PetriNet petriNet = petriNetController.getPetriNet();
        petriNet.addTransition(transition);


        return transition;
    }

    /**
     *
     * @param petriNetController controller 
     * @return unique transition name
     */
    private String getNetTransitionName(PetriNetController petriNetController) {
        return petriNetController.getUniqueTransitionName();
    }

    /**
     *
     * @return true if timed
     */
    protected abstract boolean isTimed();

}