IlvSliderLFHandler Class Reference

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

#include <ilviews/gadgets/slider.h>

Inheritance diagram for IlvSliderLFHandler:

Public Member Functions
	IlvSliderLFHandler (IlvLookFeelHandler *lfh)
	Constructor. More...
virtual void	computeBBox (const IlvSlider *slider, IlvRect &track, IlvRect &thumb, const IlvTransformer *t) const =0
	Is called to compute the bounding boxes of the slider components. More...
virtual void	drawBackground (const IlvSlider *slider, IlvPort *dst, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw the background of a slider gadget. More...
virtual void	drawContents (const IlvSlider *slider, IlvPort *dst, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw the contents of a slider gadget. More...
virtual void	drawFrame (const IlvSlider *slider, IlvPort *dst, const IlvTransformer *t, const IlvRegion *clip) const =0
	Is called to draw the frame of a slider gadget. More...
virtual void	drawThumb (const IlvSlider *slider, IlvPort *dst, const IlvRect &rect, const IlvRegion *clip) const =0
	Is called to draw the thumb of a slider gadget. More...
virtual void	drawTrack (const IlvSlider *slider, IlvPort *dst, const IlvRect &rect, const IlvRegion *clip) const =0
	Is called to draw the track of a slider gadget. More...
virtual IlBoolean	handleEvent (IlvSlider *slider, IlvEvent &event) const =0
	Is called to handle the events of a slider gadget. More...
virtual IlInt	positionToValue (const IlvSlider *slider, const IlvPoint &point, const IlvTransformer *t) const =0
	Is called to compute the value of the slider at a specified point. More...

Detailed Description

Object Look-and-Feel class.

Library: ilvgadgt

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

Constructor & Destructor Documentation

IlvSliderLFHandler()

IlvSliderLFHandler::IlvSliderLFHandler

(

IlvLookFeelHandler *

lfh

)

Constructor.

Creates a new IlvSliderLFHandler instance and initializes it with lfh.

Parameters

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

Member Function Documentation

computeBBox()

virtual void IlvSliderLFHandler::computeBBox ( const IlvSlider *  slider, IlvRect &  track, IlvRect &  thumb, const IlvTransformer *  t  ) const

pure virtual

Is called to compute the bounding boxes of the slider components.

Parameters

slider	The slider.
track	The returned bounding box of the track of the slider.
thumb	The returned bounding box of the thumb of the slider.
t	The transformer.

Implemented in IlvSliderVXLFHandler, IlvSliderW95LFHandler, IlvSliderWLFHandler, and IlvSliderMLFHandler.

drawBackground()

virtual void IlvSliderLFHandler::drawBackground ( const IlvSlider *  slider, IlvPort *  dst, const IlvTransformer *  t, const IlvRegion *  clip  ) const

pure virtual

Is called to draw the background of a slider gadget.

Parameters

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

Implemented in IlvDefaultSliderLFHandler.

drawContents()

virtual void IlvSliderLFHandler::drawContents ( const IlvSlider *  slider, IlvPort *  dst, const IlvTransformer *  t, const IlvRegion *  clip  ) const

pure virtual

Is called to draw the contents of a slider gadget.

Parameters

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

Implemented in IlvDefaultSliderLFHandler, IlvSliderVXLFHandler, IlvSliderW95LFHandler, and IlvSliderMLFHandler.

drawFrame()

virtual void IlvSliderLFHandler::drawFrame ( const IlvSlider *  slider, IlvPort *  dst, const IlvTransformer *  t, const IlvRegion *  clip  ) const

pure virtual

Is called to draw the frame of a slider gadget.

Parameters

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

Implemented in IlvDefaultSliderLFHandler.

drawThumb()

virtual void IlvSliderLFHandler::drawThumb ( const IlvSlider *  slider, IlvPort *  dst, const IlvRect &  rect, const IlvRegion *  clip  ) const

pure virtual

Is called to draw the thumb of a slider gadget.

Parameters

slider	The slider.
dst	The destination port.
rect	The rectangle where to draw the thumb.
clip	The clipping region.

Implemented in IlvSliderVXLFHandler, IlvSliderW95LFHandler, IlvSliderWLFHandler, and IlvSliderMLFHandler.

drawTrack()

virtual void IlvSliderLFHandler::drawTrack ( const IlvSlider *  slider, IlvPort *  dst, const IlvRect &  rect, const IlvRegion *  clip  ) const

pure virtual

Is called to draw the track of a slider gadget.

Parameters

slider	The slider.
dst	The destination port.
rect	The rectangle where to draw the track.
clip	The clipping region.

Implemented in IlvSliderVXLFHandler, IlvSliderW95LFHandler, IlvSliderWLFHandler, and IlvSliderMLFHandler.

handleEvent()

virtual IlBoolean IlvSliderLFHandler::handleEvent ( IlvSlider *  slider, IlvEvent &  event  ) const

pure virtual

Is called to handle the events of a slider gadget.

Parameters

slider	The slider.
event	The event to handle.

Returns

IlTrue if the event has been consumed.

Implemented in IlvDefaultSliderLFHandler.

positionToValue()

virtual IlInt IlvSliderLFHandler::positionToValue ( const IlvSlider *  slider, const IlvPoint &  point, const IlvTransformer *  t  ) const

pure virtual

Is called to compute the value of the slider at a specified point.

Parameters

slider	The slider.
point	The point.
t	The transformer.

Implemented in IlvSliderMLFHandler, and IlvSliderWLFHandler.