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Purpose:
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Provides generic methods and data for all filters.
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Derivation:
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entity_filter : ACIS_OBJECT : -
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Filename:
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kern/kernel/geomhusk/efilter.hxx
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Description:
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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.
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References:
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by KERN
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entity_binary_filter, entity_not_filter
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Data:
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protected int use_Count;
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The use count for the
entity_filter.
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Constructor:
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public: entity_filter::entity_filter
();
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C++ constructor, creating an
entity_filter.
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Destructor:
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public: void entity_filter::lose
();
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Posts a delete bulletin to the bulletin board indicating the instance is no longer used in the active model. The
lose methods for attached attributes are also called.
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protected: virtual entity_filter::~entity_filter
();
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This
C++ destructor should never be called directly, because this references
ENTITY items. Instead, applications should use the overloaded
lose method inherited from the
ENTITY class, because this supports history management.
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Methods:
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public: void entity_filter::increment_use
();
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Increment the use count for an
entity_filter. This object is not destroyed while users still exist.
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public: virtual logical entity_filter::test
(
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const ENTITY*
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// entity filter
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) const = 0;
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Tests the
entity_filter.
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