fr.lri.swingstates.canvas
Class CStateMachine.CElementEvent

java.lang.Object
  fr.lri.swingstates.sm.Transition
      fr.lri.swingstates.sm.transitions.Event
          fr.lri.swingstates.canvas.CStateMachine.CElementEvent

Enclosing class:

CStateMachine

public class CStateMachine.CElementEvent
extends Event

A transition triggered by a CElement each time this CElement is modified. For example, one can want to track the potential collisions of a given shape ball with the left edge of the canvas.

        Transition tshape = CElementEvent(ball) {
                public boolean guard() {
                        return ((CShape)getCElement()).getMinX() < 0;
                }
                public void action() {
                        ... // do something
                }
        }
        
 

Author:

Caroline Appert

Constructor Summary

CStateMachine.CElementEvent(CElement cElement)
Builds a transition that loops on the current state triggered by any changes on a CElement.

CStateMachine.CElementEvent(CElement cElement, java.lang.String outState)
Builds a transition triggered by any changes on a CElement.

Method Summary

CElement	getCElement()
VirtualCElementEvent	getCElementEvent()
boolean	matches(java.util.EventObject eventObject) Tests if an event can trigger that transition.

Methods inherited from class fr.lri.swingstates.sm.transitions.Event

toString

Methods inherited from class fr.lri.swingstates.sm.Transition

action, getEvent, getInputState, getOutputState, guard, oldToString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CStateMachine.CElementEvent

public CStateMachine.CElementEvent(CElement cElement)

Builds a transition that loops on the current state triggered by any changes on a CElement.

Parameters:

cElement - The CElement to track.

CStateMachine.CElementEvent

public CStateMachine.CElementEvent(CElement cElement,
                                   java.lang.String outState)

Builds a transition triggered by any changes on a CElement.

Parameters:

cElement - The CElement to track.

outState - The name of the output state.

Method Detail

getCElement

public CElement getCElement()

Returns:

the CElement that has just triggered this animation.

matches

public boolean matches(java.util.EventObject eventObject)

Tests if an event can trigger that transition.

Overrides:

matches in class Event

Parameters:

eventObject - The event to test

Returns:

True if the eventObject can trigger this transition.

getCElementEvent

public VirtualCElementEvent getCElementEvent()

Returns:

the event that has just triggered this transition.