fr.lri.swingstates.canvas.animations.transitions

Class CElementEvent

java.lang.Object

fr.lri.swingstates.sm.Transition

fr.lri.swingstates.sm.transitions.Event

fr.lri.swingstates.canvas.animations.transitions.CElementEvent

public class 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

Constructors

Constructor and Description
CElementEvent(CElement cElement) Builds a transition that loops on the current state triggered by any changes on a CElement.
CElementEvent(CElement cElement, java.lang.String outState) Builds a transition triggered by any changes on a CElement.

Method Summary

Methods

Modifier and Type	Method and Description
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

getClassEvent, toString

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

action, getEvent, getInputState, getOutputState, guard, manageEventID, oldToString, pickingRequired, setTriggeringEvent

Methods inherited from class java.lang.Object

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

Constructor Detail

CElementEvent

public 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.

CElementEvent

public 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.