IlvEventAccessor Class Reference

Handling events behavior (usually mouse or keyboard events). More...

#include <ilviews/protos/eventacc.h>

Inheritance diagram for IlvEventAccessor:

List of all members.

Public Member Functions
	IlvEventAccessor (const char *name, const IlvValueTypeClass *type, const char *nodeName, IlvEventType eventType, IlUShort detail, IlUShort modifiers, IlvEventAccessorData whichData)
	Creates an event accessor.
virtual IlBoolean	handleEvent (IlvAccessorHolder *object, IlvGraphic *g, IlvEvent &, IlvView *, IlvTransformer *t)
	Filters the events and performs the value change of the attribute (if appropriate).

---

Detailed Description

Handling events behavior (usually mouse or keyboard events).

Library: ilvproto

IlvEventAccessor is a subtype of the IlvAbstractEventAccessor class that handles events of a specified type. When an event is received, the attribute value is set to one of the data members of the event.

See also:

IlvEventAccessorData, IlvEvent, IlvEventType.

---

Constructor & Destructor Documentation

IlvEventAccessor::IlvEventAccessor	(	const char *	name,
		const IlvValueTypeClass *	type,
		const char *	nodeName,
		IlvEventType	eventType,
		IlUShort	detail,
		IlUShort	modifiers,
		IlvEventAccessorData	whichData
	)

Creates an event accessor.

Parameters:

	name	Name of the attribute that handles events.
	type	Type of the attribute that handles events.
	nodeName	Name of the node for which events are handled. If nodeName is "[All_nodes]", the accessor handles user events received by any node of the group to which it is attached. If nodeName is the name of a subgroup, the accessor handles events received by any node of the subgroup.
	eventType	Type of the events that must be handled (for example, IlvButtonDown).
	detail	Code of the events. For example IlvLeftButton, the ASCII code of the character `a', or the key code IlvReturn.
	modifiers	A mask specifying a combination of modifier keys that must be pressed, for example IlvCtrlModifier|IlvShiftModifier. Only the events with the specified modifiers will be handled. Use IlvAnyModifier to ignore the modifiers of the event.
	whichData	Specifies which data member of the event the accessor value will be set to.

See also:

IlvEventAccessorData, IlvEventType.

---

Member Function Documentation

virtual IlBoolean IlvEventAccessor::handleEvent	(	IlvAccessorHolder *	object,
		IlvGraphic *	g,
		IlvEvent &	,
		IlvView *	,
		IlvTransformer *	t
	)			[virtual]

Filters the events and performs the value change of the attribute (if appropriate).

Filters the events according to the eventType, detail, and modifiers parameters of the constructor. Then, it calls IlvAccessible::changeValue to set the accessor value to the event data member specified by the whichData parameter.

See also:

IlvAbstractEventAccessor::handleEvent.

Reimplemented from IlvAbstractEventAccessor.