Documentation

ETViewpointAdditions

ETViewpointMutation

Protocol to provide a viewpoint that simulates mutability for immutable objects.

AuthorsGenerated by qmathe
Declared inETViewpoint.h

Overview

For each immutable object class, a distinct ETMutableObjectViewpoint subclass must exist.

Immutable object class that wants to support editing or mutation through a ETMutableObjectViewpoint must implement this protocol.

Default

+ (Class) mutableViewpointClass

Returns the ETMutableObjectViewpoint subclass used to mutate the receiver instances.

Must not return Nil.