IlvButtonLFHandler Class Reference

Object Look-and-Feel class. More...

#include <ilviews/gadgets/button.h>

Inheritance diagram for IlvButtonLFHandler:

List of all members.

Public Member Functions
	IlvButtonLFHandler (IlvLookFeelHandler *lfh)
	Constructor.
virtual void	computeDefaultButtonRegion (const IlvButton *button, IlvRegion &region, const IlvTransformer *t) const =0
	Is called to compute the bounding box of a default button.
virtual void	drawBackground (const IlvButton *button, IlvPort *dst, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw the background of a button.
virtual void	drawButtonAsDefault (const IlvButton *button, IlvPort *dst, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw the default button.
virtual void	drawContents (const IlvButton *button, IlvPort *dst, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw the contents of a button.
virtual void	drawFrame (const IlvButton *button, IlvPort *dst, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw the frame of a button.
virtual void	drawGadgetItem (const IlvButton *button, const IlvGadgetItem *item, IlvPort *dst, const IlvRect &rect, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw the gadget item encapsulated by the button.
virtual IlBoolean	handleEvent (IlvButton *button, IlvEvent &event) const =0
	Is called to handle the events of a button.

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Detailed Description

Object Look-and-Feel class.

Library: ilvgadgt

The base class for the object look-and-feel handlers of the button gadget.

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Constructor & Destructor Documentation

IlvButtonLFHandler::IlvButtonLFHandler

(

IlvLookFeelHandler *

lfh

)

Constructor.

Creates a new IlvButtonLFHandler instance and initializes it with lfh.

Parameters:

lfh

The look-and-feel handler which this handler will be associated to.

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Member Function Documentation

virtual void IlvButtonLFHandler::computeDefaultButtonRegion	(	const IlvButton *	button,
		IlvRegion &	region,
		const IlvTransformer *	t
	)			const [pure virtual]

Is called to compute the bounding box of a default button.

Parameters:

	button	The button.
	region	The region affected by the default button drawing.
	t	The transformer.

Implemented in IlvButtonMLFHandler, and IlvButtonWLFHandler.

virtual void IlvButtonLFHandler::drawBackground	(	const IlvButton *	button,
		IlvPort *	dst,
		const IlvTransformer *	t,
		const IlvRegion *	clip
	)			const [pure virtual]

Is called to draw the background of a button.

Parameters:

	button	The button.
	dst	The destination port.
	t	The transformer.
	clip	The clipping region.

Implemented in IlvButtonMLFHandler, IlvButtonVXLFHandler, IlvButtonW95LFHandler, and IlvButtonWLFHandler.

virtual void IlvButtonLFHandler::drawButtonAsDefault	(	const IlvButton *	button,
		IlvPort *	dst,
		const IlvTransformer *	t,
		const IlvRegion *	clip
	)			const [pure virtual]

Is called to draw the default button.

Parameters:

	button	The button.
	dst	The destination port.
	t	The transformer.
	clip	The clipping region.

Implemented in IlvButtonMLFHandler, IlvButtonVXLFHandler, IlvButtonW95LFHandler, and IlvButtonWLFHandler.

virtual void IlvButtonLFHandler::drawContents	(	const IlvButton *	button,
		IlvPort *	dst,
		const IlvTransformer *	t,
		const IlvRegion *	clip
	)			const [pure virtual]

Is called to draw the contents of a button.

Parameters:

	button	The button.
	dst	The destination port.
	t	The transformer.
	clip	The clipping region.

Implemented in IlvButtonMLFHandler, IlvButtonVXLFHandler, IlvButtonW95LFHandler, and IlvButtonWLFHandler.

virtual void IlvButtonLFHandler::drawFrame	(	const IlvButton *	button,
		IlvPort *	dst,
		const IlvTransformer *	t,
		const IlvRegion *	clip
	)			const [pure virtual]

Is called to draw the frame of a button.

Parameters:

	button	The button.
	dst	The destination port.
	t	The transformer.
	clip	The clipping region.

Implemented in IlvButtonMLFHandler, IlvButtonVXLFHandler, IlvButtonW95LFHandler, and IlvButtonWLFHandler.

virtual void IlvButtonLFHandler::drawGadgetItem	(	const IlvButton *	button,
		const IlvGadgetItem *	item,
		IlvPort *	dst,
		const IlvRect &	rect,
		const IlvTransformer *	t,
		const IlvRegion *	clip
	)			const [pure virtual]

Is called to draw the gadget item encapsulated by the button.

Parameters:

	button	The button.
	item	The gadget item to draw.
	dst	The destination port.
	rect	The rectangle where to draw the item.
	t	The transformer. Not Used.
	clip	The clipping region.

Implemented in IlvDefaultButtonLFHandler.

virtual IlBoolean IlvButtonLFHandler::handleEvent	(	IlvButton *	button,
		IlvEvent &	event
	)			const [pure virtual]

Is called to handle the events of a button.

Parameters:

	button	The button.
	event	The event to handle.

Returns:

IlTrue if the event has been consumed.

Implemented in IlvDefaultButtonLFHandler.