IlvManagerObservable Class Reference

Observable class dedicated to the IlvManager. More...

#include <ilviews/manager/observer.h>

Inheritance diagram for IlvManagerObservable:

Public Member Functions
void	disable (IlUInt mask)
	Disables additional message categories for notification. More...
void	enable (IlUInt mask)
	Enables message categories for notification. More...
IlUInt	getDisabledMask () const
	Returns the message categories that are disabled. More...
IlvManager *	getManager () const
	Returns the manager. More...
IlBoolean	mustNotify (IlUInt mask)
	Indicates if the observable can propagate a given message category. More...
void	notify (IlvManagerMessage &msg)
	Notifies all the observers. More...
void	setDisabledMask (IlUInt mask)
	Resets the combination of disabled message categories. More...

Detailed Description

Observable class dedicated to the IlvManager.

Library: ilvmgr

IlvManagerObservable is used by the IlvManager class to propagate notifications to manager observers.
For the notification, the manager provides an instance of IlvManagerMessage containing the information needed by observers to identify the notification and react to it. The notification is done by the member function IlvManagerObservable::notify which calls IlvManagerObserver::update with the manager message as parameter.
The propagation of certain manager messages can be temporarily disabled to avoid unnecessary notifications. This is done by setting a bitwise OR combination of message categories called the disabled mask.

See Also

IlvManager, IlvManagerObserver, IlvManagerMessage.

Member Function Documentation

void IlvManagerObservable::disable

(

IlUInt

mask

)

Disables additional message categories for notification.

Adds the specified message categories to the existing disabled mask.

Parameters

mask	Bitwise OR combination of message categories to disable.

void IlvManagerObservable::enable

(

IlUInt

mask

)

Enables message categories for notification.

Removes the specified message categories to the existing disabled mask.

Parameters

mask	Bitwise OR combination of message categories to add.

IlUInt IlvManagerObservable::getDisabledMask

(

)

const

Returns the message categories that are disabled.

Returns

The bitwise OR combination representing the message categories that are currently disabled for notification.

IlvManager* IlvManagerObservable::getManager

(

)

const

Returns the manager.

Returns

The manager associated with the observable.

IlBoolean IlvManagerObservable::mustNotify

(

IlUInt

mask

)

Indicates if the observable can propagate a given message category.

Returns

IlFalse if the given message category is disabled or if no observer has requested this category for notification. Otherwise, the function returns IlTrue.

Parameters

mask	Specifies the message category. Must not be an OR combination but a single category.

void IlvManagerObservable::notify

(

IlvManagerMessage &

msg

)

Notifies all the observers.

Propagates a notification to all the observers attached to the observable.

Parameters

msg	Manager message containing the information on the notification. msg is passed as argument to IlvManagerObserver::update.

void IlvManagerObservable::setDisabledMask

(

IlUInt

mask

)

Resets the combination of disabled message categories.

Parameters

mask	Bitwise OR combination representing the message categories that are disabled for notification.