IlvMultipleGroupAccessor Class Reference

Combines the features of IlvGroupAccessor and IlvMultipleAccessor. More...

#include <ilviews/protos/group.h>

Inheritance diagram for IlvMultipleGroupAccessor:

List of all members.

Public Member Functions
	IlvMultipleGroupAccessor (const char *name, IlUShort count, const char **names, IlvValueTypeClass **types)
	Creates a new multiple accessor.
virtual IlBoolean	changeValue (IlvAccessorHolder *object, const IlvValue &val)
	Called by the method IlvAccessible::changeValue for each IlvAccessor attached to the IlvAccessorHolder.
virtual IlBoolean	changeValues (IlvAccessorHolder *object, const IlvValue *values, IlUShort count)
	Called by the method IlvAccessible::changeValues for each IlvAccessor attached to the IlvAccessorHolder.
virtual IlUInt	compareValues (const IlvAccessorHolder *object, const IlvAccessible *ref, IlvValue *values, IlUShort count, IlvValueArray &diffs) const
	Compares the values in ref and object and returns the differing values.
virtual IlvValue &	queryValue (const IlvAccessorHolder *object, IlvValue &val) const
	Called by the method IlvAccessible::queryValue for each IlvAccessor attached to the IlvAccessorHolder.
virtual void	queryValues (const IlvAccessorHolder *object, IlvValue *values, IlUShort count) const
	Called by the method IlvAccessiblequeryValues for each IlvAccessor attached to the IlvAccessorHolder.

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Detailed Description

Combines the features of IlvGroupAccessor and IlvMultipleAccessor.

Library: ilvproto

This accessor dispatches values to all the group nodes, and handles multiple values simultaneously. This class of accessors is usually not used directly by applications, but is used internally by subclasses of the IlvGroupNode class.

See also:

IlvGroupAccessor, IlvGroupNode, IlvMultipleAccessor.

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Constructor & Destructor Documentation

IlvMultipleGroupAccessor::IlvMultipleGroupAccessor	(	const char *	name,
		IlUShort	count,
		const char **	names,
		IlvValueTypeClass **	types
	)

Creates a new multiple accessor.

Parameters:

	name	Name of the attribute.
	count	Number of names.
	names	Array of attribute names handled by the accessor.
	types	Array of the types corresponding to each attribute name.

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Member Function Documentation

virtual IlUInt IlvMultipleGroupAccessor::compareValues	(	const IlvAccessorHolder *	object,
		const IlvAccessible *	ref,
		IlvValue *	values,
		IlUShort	count,
		IlvValueArray &	diffs
	)			const [virtual]

Compares the values in ref and object and returns the differing values.

Compares the objects object and ref for the values specified by the values array of length count. The differences are stored in the diffs array, and the method returns the number of differences. The default implementation simply calls the IlvAccessible::compareValues method, which will query the values for the two objects and compare them one by one. Subclasses may compare values more cleverly by grouping differences: for example, the IlvGroupAccessor subclass detects when all nodes of a group differ homogeneously and reports only one difference for the whole group.

See also:

IlvAccessible::compareValues, IlvProtoInstance, IlvPrototype.

Reimplemented from IlvAccessor.