Features¶
See also
- Notifications:
- The Features object uses notifications to notify observers of changes.
Tasks¶
Notifications¶
Parent¶
getParent()
setParent()
Features¶
-
class
defcon.
Features
(font=None)¶ This object contais the test represening features in the font.
This object posts the following notifications:
Features.Changed Features.BeginUndo Features.EndUndo Features.BeginRedo Features.EndRedo Features.TextChanged ================
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addObserver
(observer, methodName, notification)¶ Add an observer to this object’s notification dispatcher.
- observer An object that can be referenced with weakref.
- methodName A string representing the method to be called when the notification is posted.
- notification The notification that the observer should be notified of.
The method that will be called as a result of the action must accept a single notification argument. This will be a
defcon.tools.notifications.Notification
object.This is a convenience method that does the same thing as:
dispatcher = anObject.dispatcher dispatcher.addObserver(observer=observer, methodName=methodName, notification=notification, observable=anObject)
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destroyAllRepresentations
(notification=None)¶ Destroy all representations.
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destroyRepresentation
(name, **kwargs)¶ Destroy the stored representation for name and **kwargs. If no kwargs are given, any representation with name will be destroyed regardless of the kwargs passed when the representation was created.
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dirty
¶ The dirty state of the object. True if the object has been changed. False if not. Setting this to True will cause the base changed notification to be posted. The object will automatically maintain this attribute and update it as you change the object.
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disableNotifications
(notification=None, observer=None)¶ Disable this object’s notifications until told to resume them.
- notification The specific notification to disable. This is optional. If no notification is given, all notifications will be disabled.
This is a convenience method that does the same thing as:
dispatcher = anObject.dispatcher dispatcher.disableNotifications( observable=anObject, notification=notification, observer=observer)
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dispatcher
¶ The
defcon.tools.notifications.NotificationCenter
assigned to the parent of this object.
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enableNotifications
(notification=None, observer=None)¶ Enable this object’s notifications.
- notification The specific notification to enable. This is optional.
This is a convenience method that does the same thing as:
dispatcher = anObject.dispatcher dispatcher.enableNotifications( observable=anObject, notification=notification, observer=observer)
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getRepresentation
(name, **kwargs)¶ Get a representation. name must be a registered representation name. **kwargs will be passed to the appropriate representation factory.
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hasCachedRepresentation
(name, **kwargs)¶ Returns a boolean indicating if a representation for name and **kwargs is cached in the object.
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hasObserver
(observer, notification)¶ Returns a boolean indicating is the observer is registered for notification.
This is a convenience method that does the same thing as:
dispatcher = anObject.dispatcher dispatcher.hasObserver(observer=observer, notification=notification, observable=anObject)
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holdNotifications
(notification=None)¶ Hold this object’s notifications until told to release them.
- notification The specific notification to hold. This is optional. If no notification is given, all notifications will be held.
This is a convenience method that does the same thing as:
dispatcher = anObject.dispatcher dispatcher.holdNotifications( observable=anObject, notification=notification)
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postNotification
(notification, data=None)¶ Post a notification through this object’s notification dispatcher.
- notification The name of the notification.
- data Arbitrary data that will be stored in the
Notification
object.
This is a convenience method that does the same thing as:
dispatcher = anObject.dispatcher dispatcher.postNotification( notification=notification, observable=anObject, data=data)
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releaseHeldNotifications
(notification=None)¶ Release this object’s held notifications.
- notification The specific notification to hold. This is optional.
This is a convenience method that does the same thing as:
dispatcher = anObject.dispatcher dispatcher.releaseHeldNotifications( observable=anObject, notification=notification)
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removeObserver
(observer, notification)¶ Remove an observer from this object’s notification dispatcher.
- observer A registered object.
- notification The notification that the observer was registered to be notified of.
This is a convenience method that does the same thing as:
dispatcher = anObject.dispatcher dispatcher.removeObserver(observer=observer, notification=notification, observable=anObject)
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representationKeys
()¶ Get a list of all representation keys that are currently cached.
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text
¶ The raw feature text. Setting this post Features.TextChanged and Features.Changed notifications.
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undoManager
¶ The undo manager assigned to this object.
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