IlvCallbackAccessor Class Reference

Allows user actions that trigger a callback to, in turn, set an attribute. More...

#include <ilviews/protos/callbacc.h>

Inheritance diagram for IlvCallbackAccessor:

List of all members.

Public Member Functions
	IlvCallbackAccessor (const char *name, const IlvValueTypeClass *type, const char *nodename, const char *callback, const char *queryacc, IlvDisplay *display=0)
	Creates a callback accessor.
virtual IlBoolean	isOutputValue (const IlSymbol *name) const
	Queries if the accessor is an output accessor.
Protected Member Functions
virtual void	initialize (const IlvAccessorHolder *object)
	Attachment method to an IlvAccessorHolder.

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Detailed Description

Allows user actions that trigger a callback to, in turn, set an attribute.

Library: ilvproto

This class lets you define a notifying attribute (also called output value) for your group. This notifying value is triggered when the callback of one of the graphic objects of the prototype is executed.

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Constructor & Destructor Documentation

IlvCallbackAccessor::IlvCallbackAccessor	(	const char *	name,
		const IlvValueTypeClass *	type,
		const char *	nodename,
		const char *	callback,
		const char *	queryacc,
		IlvDisplay *	display = 0
	)

Creates a callback accessor.

Parameters:

	name	Name of the attribute.
	type	Type of the attribute. Used only for initialization purposes.
	nodename	Name of the graphic node that defines the callback, or "[All Nodes]" if the accessor is to be called for all callbacks triggered by all nodes.
	callback	The name of the callback (usually "Generic").
	queryacc	Value that will be queried and copied to the output value. This can be an expression.

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Member Function Documentation

virtual void IlvCallbackAccessor::initialize

(

const IlvAccessorHolder *

object

)

[protected, virtual]

Attachment method to an IlvAccessorHolder.

This method is called when the accessor object is attached to a group. You can redefine it in subclasses of IlvUserAccessor to perform any kind of initialization.

Parameters:

object

The object the accessor is attached to.

Reimplemented from IlvUserAccessor.

virtual IlBoolean IlvCallbackAccessor::isOutputValue

(

const IlSymbol *

name

)

const [virtual]

Queries if the accessor is an output accessor.

Returns:

IlTrue if the accessor is an output accessor, and IlFalse otherwize.

Reimplemented from IlvUserAccessor.