IlvScrolledGadgetLFHandler Class Reference

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 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, IlvScrolledGadgetCSSLFHandler, IlvScrolledGadgetMLFHandler, IlvScrolledGadgetVXLFHandler, and IlvScrolledGadgetW95LFHandler.

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, IlvScrolledGadgetCSSLFHandler, IlvScrolledGadgetMLFHandler, IlvScrolledGadgetVXLFHandler, and IlvScrolledGadgetW95LFHandler.

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 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 IlvScrolledGadgetVXLFHandler, IlvScrolledGadgetW95LFHandler, IlvScrolledGadgetWLFHandler, IlvScrolledGadgetCSSLFHandler, and IlvScrolledGadgetMLFHandler.

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, IlvScrolledGadgetCSSLFHandler, IlvScrolledGadgetMLFHandler, IlvScrolledGadgetVXLFHandler, and IlvScrolledGadgetW95LFHandler.

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, IlvScrolledGadgetCSSLFHandler, IlvScrolledGadgetMLFHandler, IlvScrolledGadgetVXLFHandler, and IlvScrolledGadgetW95LFHandler.

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.