IlvToolTipHandler Class Reference

Tooltip handler class. More...

#include <ilviews/graphics/tooltip.h>

Inheritance diagram for IlvToolTipHandler:

List of all members.

Public Member Functions
	IlvToolTipHandler (IlvView *view=0)
	Constructor.
IlvGraphic *	getLastPointedGraphic () const
	Returns a pointer to the last IlvGraphic object returned by lastContains.
virtual void	handleInput (IlvEvent &event)
	Is called when the view observed by the view handler receives an input event.
virtual IlvGraphic *	lastContains (const IlvPoint &point) const =0
	Is called to find the IlvGraphic object located at the specified point.
virtual void	setView (IlvView *view)
	Sets the view object observed by the view handler.
virtual void	viewDeleted ()
	Is called when the view observed by the view handler is deleted.

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Detailed Description

Tooltip handler class.

Library: views

The class IlvToolTipHandler is an abstract class for handling tooltips. A tooltip handler can be set to any existing IlvView object. This handler installs an input callback on the specified view and tracks the IlvPointerMoved events to determine whether tooltips should be displayed. When subclassing IlvToolTipHandler, you must provide the implementation of the lastContains method. You can also use the predefined class IlvGraphicHolderToolTipHandler class that can be used to manage tooltips in a view connected to an IlvGraphicHolder instance (IlvContainer objects or IlvView objects connected to an IlvManager).

See also:

IlvToolTip, IlvView, IlvGraphicHolder, IlvGraphicHolderToolTipHandler

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Constructor & Destructor Documentation

IlvToolTipHandler::IlvToolTipHandler

(

IlvView *

view = 0

)

Constructor.

Initializes a new instance of the class IlvToolTipHandler connected to view.

Parameters:

view

The view connected with this tooltip handler.

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Member Function Documentation

IlvGraphic* IlvToolTipHandler::getLastPointedGraphic

(

)

const

Returns a pointer to the last IlvGraphic object returned by lastContains.

Returns:

A pointer to the last IlvGraphic object returned by IlvToolTipHandler::lastContains.

virtual void IlvToolTipHandler::handleInput

(

IlvEvent &

event

)

[virtual]

Is called when the view observed by the view handler receives an input event.

The default implementation does nothing.

Parameters:

event

The input event.

See also:

IlvEvent.

Reimplemented from IlvViewHandler.

virtual IlvGraphic* IlvToolTipHandler::lastContains

(

const IlvPoint &

point

)

const [pure virtual]

Is called to find the IlvGraphic object located at the specified point.

This method must be redefined in subclasses to return the graphic object located at point in the view associated with this tooltip handler.

Parameters:

point

The point in view coordinates.

Implemented in IlvGraphicHolderToolTipHandler.

virtual void IlvToolTipHandler::setView

(

IlvView *

view

)

[virtual]

Sets the view object observed by the view handler.

Parameters:

view

The new view object observed by the view handler.

See also:

setView

Reimplemented from IlvViewHandler.

virtual void IlvToolTipHandler::viewDeleted

(

)

[virtual]

Is called when the view observed by the view handler is deleted.

The default implementation does nothing.

Reimplemented from IlvViewHandler.