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CIFilter Core Animation Additions

Overview

Core Animation adds two additional properties to the CIFilter class. These properties are accessible through key-value coding as well as the properties declared below.

Tasks

Naming Filter Instances

•   name  property

Enabling Filter Instances

•   enabled  property
• – isEnabled

Properties

For more about Objective-C properties, see “Properties” in The Objective-C 2.0 Programming Language.

enabled

Determines if the receiver is enabled. Animatable.

@property BOOL enabled

Discussion

The receiver is applied to its input when this property is set to YES. Default is YES.

Availability

• Available in Mac OS X v10.5 and later.

Declared In

CACIFilterAdditions.h

name

The name of the receiver.

@property(copy) NSString *name

Discussion

Default is nil. Each CIFilter instance can have an assigned name. The name is used to construct key paths to the filter’s attributes. For example, if a CIFilter instance has the name “myExposureFilter”, you refer to attributes of the filter using a key path such as “filters.myExposureFilter.inputEV”. Layer animations may also access filter attributes via these key paths.

Availability

• Available in Mac OS X v10.5 and later.

Declared In

CACIFilterAdditions.h

Instance Methods

isEnabled

A synthesized accessor for the enabled property.

- (BOOL)isEnabled

See Also

•   @property enabled

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