IlvButtonLFHandler Class Reference

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

#include <ilviews/gadgets/button.h>

Inheritance diagram for IlvButtonLFHandler:

Public Member Functions
	IlvButtonLFHandler (IlvLookFeelHandler *lfh)
	Constructor. More...
virtual void	computeDefaultButtonRegion (const IlvButton *button, IlvRegion &region, const IlvTransformer *t) const =0
	Is called to compute the bounding box of a default button. More...
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. More...
virtual void	drawButtonAsDefault (const IlvButton *button, IlvPort *dst, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw the default button. More...
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. More...
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. More...
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. More...
virtual IlBoolean	handleEvent (IlvButton *button, IlvEvent &event) const =0
	Is called to handle the events of a button. More...

Detailed Description

Object Look-and-Feel class.

Library: ilvgadgt

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

Constructor & Destructor Documentation

IlvButtonLFHandler()

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.

Member Function Documentation

computeDefaultButtonRegion()

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 IlvButtonWLFHandler, IlvButtonMLFHandler, and IlvButtonCSSLFHandler.

drawBackground()

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 IlvButtonWLFHandler, IlvButtonW95LFHandler, IlvButtonVXLFHandler, IlvButtonMLFHandler, and IlvButtonCSSLFHandler.

drawButtonAsDefault()

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 IlvButtonWLFHandler, IlvButtonW95LFHandler, IlvButtonVXLFHandler, IlvButtonMLFHandler, and IlvButtonCSSLFHandler.

drawContents()

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 IlvButtonWLFHandler, IlvButtonW95LFHandler, IlvButtonVXLFHandler, IlvButtonMLFHandler, and IlvButtonCSSLFHandler.

drawFrame()

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 IlvButtonWLFHandler, IlvButtonW95LFHandler, IlvButtonVXLFHandler, IlvButtonMLFHandler, and IlvButtonCSSLFHandler.

drawGadgetItem()

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.

handleEvent()

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.