net.silentlycrashing.gestures
Class GestureListener

java.lang.Object
  net.silentlycrashing.gestures.GestureListener

Direct Known Subclasses:

ConcurrentGestureListener, PostGestureListener

public abstract class GestureListener
extends Object

Listens for a specific gesture and calls the appropriate RegisteredAction when it becomes active or inactive.

Field Summary

protected boolean	active
protected Rectangle	bounds
protected GestureAnalyzer	ga
protected boolean	inBounds
protected RegisteredAction	offAction
protected RegisteredAction	onAction
protected PApplet	p
protected PointInTime	startPoint

Constructor Summary

GestureListener(PApplet parent, GestureAnalyzer analyzer)
Builds a GestureListener covering the entire canvas.

GestureListener(PApplet parent, GestureAnalyzer analyzer, Rectangle bounds)
Builds a bounded GestureListener.

Method Summary

void	activate()
void	deactivate()
PointInTime	getStartPoint()
boolean	isActive()
abstract void	keepListening(PointInTime pt) Holds actions to be performed when a new move occurs in the gesture.
void	registerOffAction(String name, Object o) Registers the given method with the off action.
void	registerOnAction(String name, Object o) Registers the given method with the on action.
void	setBounds(Rectangle newBounds)
void	startListening(PointInTime pt) Checks that the gesture is starting in the correct bounds and sets the start point.
abstract void	stopListening(PointInTime pt) Holds actions to be performed when a gesture completes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

p

protected PApplet p

ga

protected GestureAnalyzer ga

active

protected boolean active

onAction

protected RegisteredAction onAction

offAction

protected RegisteredAction offAction

startPoint

protected PointInTime startPoint

bounds

protected Rectangle bounds

inBounds

protected boolean inBounds

Constructor Detail

GestureListener

public GestureListener(PApplet parent,
                       GestureAnalyzer analyzer)

Builds a GestureListener covering the entire canvas.

Parameters:

parent - the parent PApplet

analyzer - the linked GestureAnalyzer

GestureListener

public GestureListener(PApplet parent,
                       GestureAnalyzer analyzer,
                       Rectangle bounds)

Builds a bounded GestureListener.

Parameters:

parent - the parent PApplet

analyzer - the linked GestureAnalyzer

bounds - the bounding Rectangle of the first mouse press

Method Detail

startListening

public void startListening(PointInTime pt)

Checks that the gesture is starting in the correct bounds and sets the start point.

Parameters:

pt - the first PointInTime of the gesture

keepListening

public abstract void keepListening(PointInTime pt)

Holds actions to be performed when a new move occurs in the gesture.

Parameters:

pt - the current PointInTime of the gesture

stopListening

public abstract void stopListening(PointInTime pt)

Holds actions to be performed when a gesture completes.

Parameters:

pt - the last PointInTime of the gesture

registerOnAction

public void registerOnAction(String name,
                             Object o)

Registers the given method with the on action.

Parameters:

name - the name of the method to register

o - the Object holding the method

registerOffAction

public void registerOffAction(String name,
                              Object o)

Registers the given method with the off action.

Parameters:

name - the name of the method to register

o - the Object holding the method

activate

public void activate()

deactivate

public void deactivate()

isActive

public boolean isActive()

getStartPoint

public PointInTime getStartPoint()

setBounds

public void setBounds(Rectangle newBounds)