entity_filter Class Reference
[Entity Operations]

Provides generic methods and data for all filters. More...

#include <efilter.hxx>

Inheritance diagram for entity_filter:

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Collaboration diagram for entity_filter:

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List of all members.

Public Member Functions
	entity_filter ()
	C++ constructor, creating an entity_filter.
void	increment_use ()
	Increments the use count for an entity_filter.
void	lose ()
	Posts a delete bulletin to the bulletin board indicating the instance is no longer used in the active model.
virtual logical	test (const ENTITY *filter) const =0
	Tests the entity_filter.

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Detailed Description

Provides generic methods and data for all filters.

Role: This class is the base class for providing filters. Derived classes include entity_and_filter, entity_binary_filter, entity_color_filter, entity_not_filter, entity_or_filter, and entity_test_filter.

See also:

entity_binary_filter, entity_not_filter

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Constructor & Destructor Documentation

entity_filter::entity_filter

(

)

C++ constructor, creating an entity_filter.

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Member Function Documentation

void entity_filter::increment_use

(

)

[inline]

Increments the use count for an entity_filter.

Role: This object is not destroyed while users still exist.

void entity_filter::lose

(

)

Posts a delete bulletin to the bulletin board indicating the instance is no longer used in the active model.

Role: The lose methods for attached attributes are also called.

virtual logical entity_filter::test

(

const ENTITY *

filter

)

const [pure virtual]

Tests the entity_filter.

Parameters:

filter

entity filter.

Implemented in entity_binary_filter, entity_or_filter, entity_and_filter, entity_not_filter, and entity_test_filter.