IlvScrolledGadgetLFHandler Class Reference

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

#include <ilviews/gadgets/scgadget.h>

Inheritance diagram for IlvScrolledGadgetLFHandler:

List of all members.

Public Member Functions
	IlvScrolledGadgetLFHandler (IlvLookFeelHandler *lfh)
	Constructor.
virtual void	drawBackground (const IlvScrolledGadget *gadget, IlvPort *dst, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw the background of a scrolled gadget.
virtual void	drawContents (const IlvScrolledGadget *gadget, IlvPort *dst, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw the contents of a scrolled gadget.
virtual void	drawFrame (const IlvScrolledGadget *gadget, IlvPort *dst, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw the frame of a scrolled gadget.
virtual void	drawScrollBar (const IlvScrolledGadget *gadget, IlvPort *dst, IlvDirection dir, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw an internal scroll bar of a scrolled gadget.
virtual IlvPalette *	getWindowBackground (const IlvScrolledGadget *gadget) const =0
	Returns the palette that will be used to draw the background of the scrolled gadget.
virtual IlBoolean	handleEvent (IlvScrolledGadget *gadget, IlvEvent &event) const =0
	Is called to handle the events of a scrolled gadget.
virtual IlBoolean	handleScrollBarsEvent (IlvScrolledGadget *gadget, IlvEvent &event) const =0
	Is called to handle the events of the scroll bars of a scrolled gadget.
virtual void	internalBBox (const IlvScrolledGadget *gadget, IlvRect &rect, const IlvTransformer *t) const =0
	Is called to compute the internal area of a scrolled gadget.
virtual void	scrollBarBBox (const IlvScrolledGadget *gadget, IlvOrientation dir, IlvRect &rect, const IlvTransformer *t) const =0
	Is called to compute the size and position of the internal scroll bars.
virtual void	visibleBBox (const IlvScrolledGadget *gadget, IlvRect &rect, const IlvTransformer *t) const =0
	Is called to compute the visible area of the scrolled gadget.

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Detailed Description

Object Look-and-Feel class.

Library: ilvadvgdt

The base class for the object look-and-feel handlers of the scrolled gadgets.

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Constructor & Destructor Documentation

IlvScrolledGadgetLFHandler::IlvScrolledGadgetLFHandler

(

IlvLookFeelHandler *

lfh

)

Constructor.

Creates a new IlvScrolledGadgetLFHandler 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 IlvScrolledGadgetLFHandler::drawBackground	(	const IlvScrolledGadget *	gadget,
		IlvPort *	dst,
		const IlvTransformer *	t,
		const IlvRegion *	clip
	)			const [pure virtual]

Is called to draw the background of a scrolled gadget.

Parameters:

	gadget	The scrolled gadget.
	dst	The destination port.
	t	The transformer.
	clip	The clipping region.

Implemented in IlvScrolledGadgetMLFHandler, IlvScrolledGadgetVXLFHandler, IlvScrolledGadgetW95LFHandler, and IlvScrolledGadgetWLFHandler.

virtual void IlvScrolledGadgetLFHandler::drawContents	(	const IlvScrolledGadget *	gadget,
		IlvPort *	dst,
		const IlvTransformer *	t,
		const IlvRegion *	clip
	)			const [pure virtual]

Is called to draw the contents of a scrolled gadget.

Parameters:

	gadget	The scrolled gadget.
	dst	The destination port.
	t	The transformer.
	clip	The clipping region.

Implemented in IlvDefaultScrolledGadgetLFHandler.

virtual void IlvScrolledGadgetLFHandler::drawFrame	(	const IlvScrolledGadget *	gadget,
		IlvPort *	dst,
		const IlvTransformer *	t,
		const IlvRegion *	clip
	)			const [pure virtual]

Is called to draw the frame of a scrolled gadget.

Parameters:

	gadget	The scrolled gadget.
	dst	The destination port.
	t	The transformer.
	clip	The clipping region.

Implemented in IlvScrolledGadgetMLFHandler, IlvScrolledGadgetVXLFHandler, IlvScrolledGadgetW95LFHandler, and IlvScrolledGadgetWLFHandler.

virtual void IlvScrolledGadgetLFHandler::drawScrollBar	(	const IlvScrolledGadget *	gadget,
		IlvPort *	dst,
		IlvDirection	dir,
		const IlvTransformer *	t,
		const IlvRegion *	clip
	)			const [pure virtual]

Is called to draw an internal scroll bar of a scrolled gadget.

Parameters:

	gadget	The scrolled gadget.
	dst	The destination port.
	dir	The orientation of the scroll bar.
	t	The transformer.
	clip	The clipping region.

Implemented in IlvDefaultScrolledGadgetLFHandler.

virtual IlvPalette* IlvScrolledGadgetLFHandler::getWindowBackground

(

const IlvScrolledGadget *

gadget

)

const [pure virtual]

Returns the palette that will be used to draw the background of the scrolled gadget.

Parameters:

gadget

The scrolled gadget.

Implemented in IlvScrolledGadgetMLFHandler, IlvScrolledGadgetVXLFHandler, IlvScrolledGadgetW95LFHandler, and IlvScrolledGadgetWLFHandler.

virtual IlBoolean IlvScrolledGadgetLFHandler::handleEvent	(	IlvScrolledGadget *	gadget,
		IlvEvent &	event
	)			const [pure virtual]

Is called to handle the events of a scrolled gadget.

Parameters:

	gadget	The scrolled gadget.
	event	The event to handle.

Returns:

IlTrue if the event has been consumed.

Implemented in IlvDefaultScrolledGadgetLFHandler.

virtual IlBoolean IlvScrolledGadgetLFHandler::handleScrollBarsEvent	(	IlvScrolledGadget *	gadget,
		IlvEvent &	event
	)			const [pure virtual]

Is called to handle the events of the scroll bars of a scrolled gadget.

Parameters:

	gadget	The scrolled gadget.
	event	The event to handle.

Returns:

IlTrue if the event has been consumed.

Implemented in IlvDefaultScrolledGadgetLFHandler.

virtual void IlvScrolledGadgetLFHandler::internalBBox	(	const IlvScrolledGadget *	gadget,
		IlvRect &	rect,
		const IlvTransformer *	t
	)			const [pure virtual]

Is called to compute the internal area of a scrolled gadget.

Parameters:

	gadget	The scrolled gadget.
	rect	The returned rectangle of the internal area.
	t	The transformer.

Implemented in IlvScrolledGadgetMLFHandler, IlvScrolledGadgetVXLFHandler, IlvScrolledGadgetW95LFHandler, and IlvScrolledGadgetWLFHandler.

virtual void IlvScrolledGadgetLFHandler::scrollBarBBox	(	const IlvScrolledGadget *	gadget,
		IlvOrientation	dir,
		IlvRect &	rect,
		const IlvTransformer *	t
	)			const [pure virtual]

Is called to compute the size and position of the internal scroll bars.

Parameters:

	gadget	The scrolled gadget.
	dir	The orientation of the scroll bar.
	rect	The returned bounding box of the specified scroll bar.
	t	The transformer.

Implemented in IlvScrolledGadgetMLFHandler, IlvScrolledGadgetVXLFHandler, IlvScrolledGadgetW95LFHandler, and IlvScrolledGadgetWLFHandler.

virtual void IlvScrolledGadgetLFHandler::visibleBBox	(	const IlvScrolledGadget *	gadget,
		IlvRect &	rect,
		const IlvTransformer *	t
	)			const [pure virtual]

Is called to compute the visible area of the scrolled gadget.

Parameters:

	gadget	The scrolled gadget.
	rect	The returned rectangle of the visible area.
	t	The transformer.

Implemented in IlvDefaultScrolledGadgetLFHandler.