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

#include <ilviews/gadgets/scgadget.h>

Inheritance diagram for IlvScrolledGadgetLFHandler:

Public Member Functions
	IlvScrolledGadgetLFHandler (IlvLookFeelHandler *lfh)
	Constructor. More...

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. More...

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. More...

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. More...

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. More...

virtual const IlvPalette *	getWindowBackground (const IlvScrolledGadget *gadget) const =0
	Returns the palette that will be used to draw the background of the scrolled gadget. More...

virtual IlBoolean	handleEvent (IlvScrolledGadget *gadget, IlvEvent &event) const =0
	Is called to handle the events of a scrolled gadget. More...

virtual IlBoolean	handleScrollBarsEvent (IlvScrolledGadget *gadget, IlvEvent &event) const =0
	Is called to handle the events of the scroll bars of a scrolled gadget. More...

virtual void	internalBBox (const IlvScrolledGadget gadget, IlvRect &rect, const IlvTransformer t) const =0
	Is called to compute the internal area of a scrolled gadget. More...

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. More...

virtual void	visibleBBox (const IlvScrolledGadget gadget, IlvRect &rect, const IlvTransformer t) const =0
	Is called to compute the visible area of the scrolled gadget. More...

Detailed Description

Object Look-and-Feel class.

Library: ilvadvgdt

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

Constructor & Destructor Documentation

◆ IlvScrolledGadgetLFHandler()

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.

Member Function Documentation

◆ drawBackground()

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 IlvScrolledGadgetWLFHandler, IlvScrolledGadgetW95LFHandler, IlvScrolledGadgetVXLFHandler, IlvScrolledGadgetMLFHandler, and IlvScrolledGadgetCSSLFHandler.

◆ drawContents()

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.

◆ drawFrame()

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 IlvScrolledGadgetWLFHandler, IlvScrolledGadgetW95LFHandler, IlvScrolledGadgetVXLFHandler, IlvScrolledGadgetMLFHandler, and IlvScrolledGadgetCSSLFHandler.

◆ drawScrollBar()

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.

◆ getWindowBackground()

virtual const 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 IlvScrolledGadgetWLFHandler, IlvScrolledGadgetW95LFHandler, IlvScrolledGadgetVXLFHandler, IlvScrolledGadgetMLFHandler, and IlvScrolledGadgetCSSLFHandler.

◆ handleEvent()

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.

◆ handleScrollBarsEvent()

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.

◆ internalBBox()

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 IlvScrolledGadgetWLFHandler, IlvScrolledGadgetW95LFHandler, IlvScrolledGadgetVXLFHandler, IlvScrolledGadgetMLFHandler, and IlvScrolledGadgetCSSLFHandler.

◆ scrollBarBBox()

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 IlvScrolledGadgetWLFHandler, IlvScrolledGadgetW95LFHandler, IlvScrolledGadgetVXLFHandler, IlvScrolledGadgetMLFHandler, and IlvScrolledGadgetCSSLFHandler.

◆ visibleBBox()

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, and IlvScrolledGadgetCSSLFHandler.

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ IlvScrolledGadgetLFHandler()

Member Function Documentation

◆ drawBackground()

◆ drawContents()

◆ drawFrame()

◆ drawScrollBar()

◆ getWindowBackground()

◆ handleEvent()

◆ handleScrollBarsEvent()

◆ internalBBox()

◆ scrollBarBBox()

◆ visibleBBox()