The <DependencyDataSource> protocol is used to work with color editor.
<NSObject>
<DependencyDataSource>
valueWithId:. Returns map layer area value with specified identifier.
- (NSNumber *)valueWithId:(NSObject *)objectId;
objectId. Map layer area identifier.
This method is optional.
The example of use is given in the Setting Constant Value for Map Scale section.
See also:
Working with Common Protocols