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IlvNodeAccessor Class Reference

Reference to another attribute or subattribute of an IlvGroup object. More...

#include <ilviews/protos/useracc.h>

Inheritance diagram for IlvNodeAccessor:
IlvUserAccessor IlvAccessor

Public Member Functions

 IlvNodeAccessor (const char *name, const IlvValueTypeClass *type, const char *subaccessor)
 Initializes a new node accessor of name name and type type. More...
 
- Public Member Functions inherited from IlvUserAccessor
 IlvUserAccessor (const char *name, const IlvValueTypeClass *type, IlUInt flags=0)
 Constructor. More...
 
virtual void initialize (const IlvAccessorHolder *object)
 Attachment method to an IlvAccessorHolder. More...
 
virtual IlBoolean isOutputValue (const IlSymbol *) const
 Queries if the accessor is an output accessor. More...
 
IlBoolean isPrivate () const
 Checks the private status. More...
 
IlBoolean isRuntime () const
 Checks the RunTime status. More...
 
void setPrivate (IlBoolean val)
 Sets the Private flag of this accessor. More...
 
void setRuntime (IlBoolean runTime)
 Sets the RunTime flag of this accessor. More...
 
- Public Member Functions inherited from IlvAccessor
 IlvAccessor (const char *name, IlvValueTypeClass *type)
 Creates a new accessor of name name and type type.
 
virtual IlBoolean changeValues (IlvAccessorHolder *object, const IlvValue *values, IlUShort count)
 Called by the method IlvAccessible::changeValues() for each IlvAccessor attached to the IlvAccessorHolder.
 
virtual void getAccessors (const IlSymbol *const **accessors, const IlvValueTypeClass *const **types, IlUInt &count) const
 Returns the names and types of the values handled by this accessor. More...
 
const IlSymbolgetName () const
 Returns the name of the accessor. More...
 
IlvValueTypeClassgetType () const
 Returns the type of the accessor. More...
 
virtual IlBoolean isOutputAccessor (IlBoolean &inputAndOutput)
 Queries if the accessor is an output accessor. More...
 
virtual IlShort matchValues (const IlvAccessorHolder *object, const IlvValue *values, IlUShort count, IlvValue *matchingValues=0) const
 Returns the number of values that are handled by the accessor in the values array of length count. More...
 
virtual void queryValues (const IlvAccessorHolder *object, IlvValue *values, IlUShort count) const
 Called by the method IlvAccessible::queryValues() for each IlvAccessor attached to the IlvAccessorHolder.
 
void setName (const IlSymbol *name)
 Sets the name of the accessor. More...
 

Protected Member Functions

virtual IlBoolean changeValue (IlvAccessorHolder *, const IlvValue &)
 Called by the method IlvAccessible::changeValue() for each IlvAccessor attached to the IlvAccessorHolder.
 
virtual IlvValuequeryValue (const IlvAccessorHolder *, IlvValue &) const
 Called by the method IlvAccessible::queryValue() for each IlvAccessor attached to the IlvAccessorHolder.
 
- Protected Member Functions inherited from IlvUserAccessor
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. More...
 
IlBoolean getValue (IlvValue &val, const IlvAccessorHolder *object, IlvDisplay *display, IlvValueTypeClass *typeClass=0, IlSymbol *typeVal=0, const IlvValue *arg=0) const
 Evaluates a parameter of a user accessor. More...
 

Detailed Description

Reference to another attribute or subattribute of an IlvGroup object.

Library: ilvproto

IlvNodeAccessor is used with a group to provide access to a value of one of the nodes in the group at the level of the group itself. It is similar to declaring a pointer variable in a programming language.

Constructor & Destructor Documentation

IlvNodeAccessor::IlvNodeAccessor ( const char *  name,
const IlvValueTypeClass type,
const char *  subaccessor 
)

Initializes a new node accessor of name name and type type.

When a changeValue()/queryValue() call is issued on the group for the value name, the call is forwarded to the nodes attribute or the prototypes value subaccessor.

Parameters
nameName of the accessor.
typeType of the accessor.
subaccessorAttribute or subattribute that the node should reference.

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