IlvSlideYAccessor Class Reference

Translates a node horizontally. More...

#include <ilviews/protos/graphacc.h>

Inheritance diagram for IlvSlideYAccessor:

Public Member Functions
	IlvSlideYAccessor (const char *name, const char *nodename, const char *minY, const char *deltaY, const char *minVal, const char *deltaVal, IlBoolean allowInteraction=IlFalse)
	Creates an IlvSlideYAccessor. More...
virtual IlBoolean	changeValue (IlvAccessorHolder *object, const IlvValue &val)
	Called by the method IlvAccessible::changeValue() for each IlvAccessor attached to the IlvAccessorHolder.
virtual IlBoolean	handleEvent (IlvAccessorHolder *object, IlvGraphic *g, IlvEvent &, IlvView *, IlvTransformer *t)
	Event handling method, to be derived in subclasses. More...
virtual void	initialize (const IlvAccessorHolder *object)
	Attachment method to an IlvAccessorHolder. More...
virtual IlvValue &	queryValue (const IlvAccessorHolder *object, IlvValue &val) const
	Called by the method IlvAccessible::queryValue() for each IlvAccessor attached to the IlvAccessorHolder.
Public Member Functions inherited from IlvAbstractEventAccessor
	IlvAbstractEventAccessor (const char *name, const IlvValueTypeClass *type, const char *nodeName)
	Creates an event accessor. More...
Public Member Functions inherited from IlvUserAccessor
	IlvUserAccessor (const char *name, const IlvValueTypeClass *type, IlUInt flags=0)
	Constructor. 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 IlSymbol *	getName () const
	Returns the name of the accessor. More...
IlvValueTypeClass *	getType () 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...

Additional Inherited Members
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

Translates a node horizontally.

Library: ilvproto

IlvSlideYAccessor translates a node vertically to a position defined by a minimum position, a position range, a minimum value, and a value range. The new position is computed from the value assigned to the IlvSlideXAccessor with the following formula: y = ymin + ((v - vmin) * yrange / vrange)

The user can slide the node interactively by dragging it with the mouse. Using this flag may produce modularization difficulties in the design of your prototype. It is meant to implement very simple prototypes that do not exceed a few accessors.

Constructor & Destructor Documentation

IlvSlideYAccessor()

IlvSlideYAccessor::IlvSlideYAccessor	(	const char *	name,
		const char *	nodename,
		const char *	minY,
		const char *	deltaY,
		const char *	minVal,
		const char *	deltaVal,
		IlBoolean	allowInteraction = IlFalse
	)

Creates an IlvSlideYAccessor.

This accessor includes an IlvValueAccessor of type float that holds the current translation factor of the node. It is therefore implicitly typed to IlvFloatValueType. minY, deltaY, minVal, and deltaVal can contain a constant value, the name of another accessor, or an arithmetic expression that can contain accessor names and/or constants (see IlvUserAccessor::getValue).

Parameters

name	Name of the attribute.
nodename	Name of the graphic node to be moved.
minY	Minimum y coordinate of the graphic node.
deltaY	Defines the range within which the node should be translated.
minVal	The minimum input value.
deltaVal	The range within which the input value varies.
allowInteraction	If this flag is set to IlTrue, the user can slide the node interactively by clicking on it and dragging it with the mouse. Otherwise, no interaction is allowed.

Member Function Documentation

handleEvent()

virtual IlBoolean IlvSlideYAccessor::handleEvent ( IlvAccessorHolder *  object, IlvGraphic *  g, IlvEvent &  event, IlvView *  view, IlvTransformer *  t  )

virtual

Event handling method, to be derived in subclasses.

Called for every event received by one of the nodes specified by the nodeName argument of the constructor. It must be redefined by subclasses to implement the effect of the accessor.

Parameters

object	Group to which the accessor is attached.
g	Graphic object that received the event.
event	Event received.
view	View in which the event was received.
t	Transformer associated with the view, or 0 if the view has no transformer.

Reimplemented from IlvAbstractEventAccessor.

initialize()

virtual void IlvSlideYAccessor::initialize ( const IlvAccessorHolder *  object )

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 IlvAbstractEventAccessor.