Handle class for slider componets. More...

#include <FSliderHandle.h>

Inheritance diagram for icl::qt::FSliderHandle:

Public Member Functions
	FSliderHandle ()
	Create an empty slider handle.
	FSliderHandle (ThreadedUpdatableSlider sl, float minV, float maxV, float M, float B, int range, GUIWidget w, QLCDNumber *lcd=0)
	create a slider handle
QLCDNumber *	getDisplay ()
	retuns the QLCDNumber that is used as display
void	setMin (float min)
	set the min value
void	setMax (float max)
	set the max value
void	setRange (float min, float max)
	set the range of the slider
void	setValue (float val)
	set the current value of the slider
void	setAll (float min, float max, float val)
	sets all parameters of a slider
float	getMin () const
	returns the current min. of the slider
float	getMax () const
	returns the current max. of the slider
float	getValue () const
	returns the current value of the slider
void	operator= (float val)
	assigns a new value to the slider (equal to setValue)
virtual void	registerCallback (const GUI::Callback &cb, const std::string &events="value")
	overloaded method for registering callbacks to specific slider events
virtual void	removeCallbacks ()
	empties both callback locations (GUIHandleBase and ThreadedUpdatableSlider)
Private Member Functions
void	updateMB ()
	internal utiltiy function which update the param for the slider equation
int	f2i (float f) const
	utility function tranlating from valued to slider coordinates
float	i2f (int i) const
	utility function tranlating from slider to value coordinates
Private Attributes
QLCDNumber *	lcd
	associated display
float *	m_fMin
	current min value
float *	m_fMax
	current max value
float *	m_fM
	Slope for the internal slider equation.
float *	m_fB
	Bias for the internal slider equation.
int	m_iSliderRange
	accumulator of the current slider range

Detailed Description

Handle class for slider componets.

Constructor & Destructor Documentation

icl::qt::FSliderHandle::FSliderHandle ( )

Create an empty slider handle.

icl::qt::FSliderHandle::FSliderHandle	(	ThreadedUpdatableSlider *	sl,
		float *	minV,
		float *	maxV,
		float *	M,
		float *	B,
		int	range,
		GUIWidget *	w,
		QLCDNumber *	lcd = `0`
	)

create a slider handle

Member Function Documentation

int icl::qt::FSliderHandle::f2i ( float f ) const [inline, private]

utility function tranlating from valued to slider coordinates

QLCDNumber* icl::qt::FSliderHandle::getDisplay ( ) [inline]

retuns the QLCDNumber that is used as display

result is null, if the slider was created without display

float icl::qt::FSliderHandle::getMax ( ) const

returns the current max. of the slider

float icl::qt::FSliderHandle::getMin ( ) const

returns the current min. of the slider

float icl::qt::FSliderHandle::getValue ( ) const

returns the current value of the slider

float icl::qt::FSliderHandle::i2f ( int i ) const [inline, private]

utility function tranlating from slider to value coordinates

void icl::qt::FSliderHandle::operator= ( float val ) [inline]

assigns a new value to the slider (equal to setValue)

virtual void icl::qt::FSliderHandle::registerCallback	(	const GUI::Callback &	cb,
		const std::string &	events = `"value"`
	)		`[inline, virtual]`

overloaded method for registering callbacks to specific slider events

Please note: Only this callback mechanism is overloaded for the slider class Simple GUI callbacks are stored within the ThreadedUpdatableSlider class, while complex callbacks (those that get the GUI components handle name as parameters) are stored and handled within the GUIHandleBase class. Allowed values for the event parameter are comma-separated lists that consist of the following tokes: