Package jmri.implementation

Class DefaultSignalHead

java.lang.Object

jmri.implementation.AbstractNamedBean

jmri.implementation.AbstractSignalHead

jmri.implementation.DefaultSignalHead

All Implemented Interfaces:

VetoableChangeListener, Comparable<NamedBean>, EventListener, PropertyChangeProvider, NamedBean, Signal, SignalHead

Direct Known Subclasses:

AcelaSignalHead, DoubleTurnoutSignalHead, LsDecSignalHead, MergSD2SignalHead, SE8cSignalHead, SE8cSignalHead, SerialSignalHead, SingleTurnoutSignalHead, VirtualSignalHead

public abstract class DefaultSignalHead
extends AbstractSignalHead

Default implementation of the basic logic of the SignalHead interface. This class only claims support for the Red, Yellow and Green appearances, and their corresponding flashing forms. Support for Lunar is deferred to DefaultLunarSignalHead or an extended class.

Nested Class Summary

Nested classes/interfaces inherited from interface jmri.NamedBean

NamedBean.BadNameException, NamedBean.BadSystemNameException, NamedBean.BadUserNameException, NamedBean.DisplayOptions, NamedBean.DuplicateSystemNameException

Field Summary

Fields

Modifier and Type	Field	Description
int	delay	On or off time of flashing signal.
static int	masterDelay
protected boolean	mFlashOn	Should a flashing signal be on (lit) now?
(package private) Timer	timer

Fields inherited from class jmri.implementation.AbstractSignalHead

mAppearance, mHeld, mLit

Fields inherited from class jmri.implementation.AbstractNamedBean

listenerRefs, mSystemName, register

Fields inherited from interface jmri.NamedBean

DISPLAY_NAME_FORMAT, INCONSISTENT, PROPERTY_STATE, QUOTED_NAME_FORMAT, UNKNOWN

Fields inherited from interface jmri.SignalHead

DARK, FLASHGREEN, FLASHLUNAR, FLASHRED, FLASHYELLOW, GREEN, HELD, LUNAR, RED, YELLOW

Constructor Summary

Constructors

Constructor	Description
DefaultSignalHead(String systemName)
DefaultSignalHead(String systemName, String userName)

Method Summary

Modifier and Type	Method	Description
protected void	appearanceSetsFlashTimer(int newAppearance)	Call to set timer when updating the appearance.
String[]	getValidStateKeys()	Get an array of non-localized appearance keys valid for the mast type.
String[]	getValidStateNames()	Get an array of localized appearance descriptions valid for the mast type.
int[]	getValidStates()	Get an array of appearance indexes valid for the mast type.
(package private) boolean	isTurnoutUsed(Turnout t)	Check if a given turnout is used on this head.
void	setAppearance(int newAppearance)	Set the Signal Head Appearance.
void	setHeld(boolean newHeld)	Set the held parameter.
void	setLit(boolean newLit)
protected void	startFlash()	Start the timer that controls flashing.
protected void	stopFlash()
protected abstract void	updateOutput()	Type-specific routine to handle output to the layout hardware.

Methods inherited from class jmri.implementation.AbstractSignalHead

getAppearance, getAppearanceKey, getAppearanceKey, getAppearanceName, getAppearanceName, getBeanType, getDefaultStateName, getDefaultValidStateNames, getDefaultValidStates, getHeld, getLit, getState, isAtStop, isCleared, isShowingRestricting, setState, vetoableChange

Methods inherited from class jmri.implementation.AbstractNamedBean

addPropertyChangeListener, addPropertyChangeListener, addPropertyChangeListener, addPropertyChangeListener, compareSystemNameSuffix, describeState, dispose, equals, firePropertyChange, getComment, getDisplayName, getDisplayName, getFullyFormattedDisplayName, getFullyFormattedDisplayName, getListenerRef, getListenerRefs, getNumPropertyChangeListeners, getProperty, getPropertyChangeListeners, getPropertyChangeListeners, getPropertyChangeListenersByReference, getPropertyKeys, getSystemName, getUserName, hashCode, removeProperty, removePropertyChangeListener, removePropertyChangeListener, setComment, setProperty, setUserName, toString, toStringSuffix, updateListenerRef

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface jmri.NamedBean

addPropertyChangeListener, addPropertyChangeListener, compareSystemNameSuffix, compareTo, describeState, dispose, getComment, getDisplayName, getDisplayName, getFullyFormattedDisplayName, getFullyFormattedDisplayName, getListenerRef, getListenerRefs, getNumPropertyChangeListeners, getProperty, getPropertyChangeListenersByReference, getPropertyKeys, getSystemName, getUsageReport, getUserName, removeProperty, setComment, setProperty, setUserName, toString, updateListenerRef

Methods inherited from interface jmri.beans.PropertyChangeProvider

addPropertyChangeListener, addPropertyChangeListener, getPropertyChangeListeners, getPropertyChangeListeners, removePropertyChangeListener, removePropertyChangeListener

Field Details

mFlashOn

protected boolean mFlashOn

Should a flashing signal be on (lit) now?

timer

Timer timer

delay

public int delay

On or off time of flashing signal. Public so that it can be overridden by scripting (before first use)

masterDelay

public static int masterDelay

Constructor Details

DefaultSignalHead

public DefaultSignalHead(String systemName, String userName)

DefaultSignalHead

public DefaultSignalHead(String systemName)

Method Details

setAppearance

public void setAppearance(int newAppearance)

Description copied from interface: SignalHead

Set the Signal Head Appearance.

Parameters:

newAppearance - integer representing a valid Appearance for this head

appearanceSetsFlashTimer

protected void appearanceSetsFlashTimer(int newAppearance)

Call to set timer when updating the appearance.

Parameters:

newAppearance - the new appearance

setLit

public void setLit(boolean newLit)

setHeld

public void setHeld(boolean newHeld)

Set the held parameter.

Note that this does not directly effect the output on the layout; the held parameter is a local variable which effects the aspect only via higher-level logic.

Parameters:

newHeld - new Held state, true if Held, to be compared with current Held state

updateOutput

protected abstract void updateOutput()

Type-specific routine to handle output to the layout hardware.

Does not notify listeners of changes; that's done elsewhere. Should use the following variables to determine what to send:

• mAppearance
• mLit
• mFlashOn

startFlash

protected void startFlash()

Start the timer that controls flashing.

stopFlash

protected void stopFlash()

getValidStates

public int[] getValidStates()

Get an array of appearance indexes valid for the mast type.

Specified by:

getValidStates in interface SignalHead

Overrides:

getValidStates in class AbstractSignalHead

Returns:

array of appearance state values available on this mast type

getValidStateKeys

public String[] getValidStateKeys()

Get an array of non-localized appearance keys valid for the mast type. For GUI application consider using (capitalized) SignalHead.getValidStateNames()

Specified by:

getValidStateKeys in interface SignalHead

Overrides:

getValidStateKeys in class AbstractSignalHead

Returns:

array of translated appearance names available on this mast type

getValidStateNames

public String[] getValidStateNames()

Get an array of localized appearance descriptions valid for the mast type. For persistance and comparison consider using SignalHead.getValidStateKeys()

Specified by:

getValidStateNames in interface SignalHead

Overrides:

getValidStateNames in class AbstractSignalHead

Returns:

array of translated appearance names

isTurnoutUsed

boolean isTurnoutUsed(Turnout t)

Description copied from class: AbstractSignalHead

Check if a given turnout is used on this head.

Specified by:

isTurnoutUsed in class AbstractSignalHead

Parameters:

t - Turnout object to check

Returns:

true if turnout is configured as output or driver of head