#include <qwt_counter.h>

Diagrama de herencias de QwtCounter

Clases
class	PrivateData
Tipos públicos
enum	Button { Button1, Button2, Button3, ButtonCnt }
Señales
void	buttonReleased (double value)
void	valueChanged (double value)
Métodos públicos
	QwtCounter (QWidget *parent=NULL)
	QwtCounter (QWidget parent, const char name)
virtual	~QwtCounter ()
	Destructor.
bool	editable () const
void	setEditable (bool)
	Allow/disallow the user to manually edit the value.
void	setNumButtons (int n)
	Specify the number of buttons on each side of the label.
int	numButtons () const
void	setIncSteps (QwtCounter::Button btn, int nSteps)
int	incSteps (QwtCounter::Button btn) const
virtual void	setValue (double)
	Set a new value.
virtual QSize	sizeHint () const
	A size hint.
virtual void	polish ()
double	step () const
	returns the step size
void	setStep (double s)
	sets the step size
double	minVal () const
	returns the minimum value of the range
void	setMinValue (double m)
	sets the minimum value of the range
double	maxVal () const
	returns the maximum value of the range
void	setMaxValue (double m)
	sets the maximum value of the range
void	setStepButton1 (int nSteps)
	set the number of increment steps for button 1
int	stepButton1 () const
void	setStepButton2 (int nSteps)
	set the number of increment steps for button 2
int	stepButton2 () const
void	setStepButton3 (int nSteps)
	set the number of increment steps for button 3
int	stepButton3 () const
virtual double	value () const
	Returns the current value.
Métodos protegidos
virtual bool	event (QEvent *)
virtual void	wheelEvent (QWheelEvent *)
virtual void	keyPressEvent (QKeyEvent *)
virtual void	rangeChange ()
	Notify change of range.
Propiedades
int	numButtons
double	basicstep
double	minValue
double	maxValue
int	stepButton1
	returns the number of increment steps for button 1
int	stepButton2
	returns the number of increment steps for button 2
int	stepButton3
	returns the number of increment steps for button 3
double	value
bool	editable
	returns whether the line edit is edatble. (default is yes)

Descripción detallada

The Counter Widget.

A Counter consists of a label displaying a number and one ore more (up to three) push buttons on each side of the label which can be used to increment or decrement the counter's value.

A Counter has a range from a minimum value to a maximum value and a step size. The range can be specified using QwtDblRange::setRange(). The counter's value is an integer multiple of the step size. The number of steps by which a button increments or decrements the value can be specified using QwtCounter::setIncSteps(). The number of buttons can be changed with QwtCounter::setNumButtons().

Holding the space bar down with focus on a button is the fastest method to step through the counter values. When the counter underflows/overflows, the focus is set to the smallest up/down button and counting is disabled. Counting is re-enabled on a button release event (mouse or space bar).

Example:

#include "../include/qwt_counter.h>

QwtCounter *cnt;

cnt = new QwtCounter(parent, name);

cnt->setRange(0.0, 100.0, 1.0);             // From 0.0 to 100, step 1.0
cnt->setNumButtons(2);                      // Two buttons each side
cnt->setIncSteps(QwtCounter::Button1, 1);   // Button 1 increments 1 step
cnt->setIncSteps(QwtCounter::Button2, 20);  // Button 2 increments 20 steps

connect(cnt, SIGNAL(valueChanged(double)), my_class, SLOT(newValue(double)));

Documentación de las enumeraciones miembro de la clase

enum QwtCounter::Button

Button index

Valores de enumeraciones:

Button1
Button2
Button3
ButtonCnt

Documentación del constructor y destructor

QwtCounter::QwtCounter ( QWidget * parent = NULL ) [explicit]

The default number of buttons is set to 2. The default increments are:

Button 1: 1 step
Button 2: 10 steps
Button 3: 100 steps

Parámetros:

parent

QwtCounter::QwtCounter	(	QWidget *	parent,
		const char *	name
	)		`[explicit]`

The default number of buttons is set to 2. The default increments are:

Button 1: 1 step
Button 2: 10 steps
Button 3: 100 steps

Parámetros:

parent

QwtCounter::~QwtCounter ( ) [virtual]

Destructor.

Documentación de las funciones miembro

void QwtCounter::buttonReleased ( double value ) [signal]

This signal is emitted when a button has been released

Parámetros:

value The new value

bool QwtCounter::editable ( ) const

bool QwtCounter::event ( QEvent * e ) [protected, virtual]

Handle PolishRequest events

Reimplementado de QWidget.

int QwtCounter::incSteps ( QwtCounter::Button btn ) const

Devuelve:: the number of steps by which a specified button increments the value or 0 if the button is invalid.

Parámetros:

btn	One of `QwtCounter::Button1`, `QwtCounter::Button2`, `QwtCounter::Button3`

void QwtCounter::keyPressEvent ( QKeyEvent * e ) [protected, virtual]

Handles key events

Ctrl + Qt::Key_Home Step to minValue()
Ctrl + Qt::Key_End Step to maxValue()
Qt::Key_Up Increment by incSteps(QwtCounter::Button1)
Qt::Key_Down Decrement by incSteps(QwtCounter::Button1)
Qt::Key_PageUp Increment by incSteps(QwtCounter::Button2)
Qt::Key_PageDown Decrement by incSteps(QwtCounter::Button2)
Shift + Qt::Key_PageUp Increment by incSteps(QwtCounter::Button3)
Shift + Qt::Key_PageDown Decrement by incSteps(QwtCounter::Button3)

Reimplementado de QWidget.

double QwtCounter::maxVal ( ) const

returns the maximum value of the range

double QwtCounter::minVal ( ) const

returns the minimum value of the range

int QwtCounter::numButtons ( ) const

void QwtCounter::polish ( ) [virtual]

Sets the minimum width for the buttons

Reimplementado de QWidget.

void QwtCounter::rangeChange ( ) [protected, virtual]

Notify change of range.

This function updates the enabled property of all buttons contained in QwtCounter.

Reimplementado de QwtDoubleRange.

void QwtCounter::setEditable ( bool editable )

Allow/disallow the user to manually edit the value.

Parámetros:

editable true enables editing

Ver también:: editable()

void QwtCounter::setIncSteps	(	QwtCounter::Button	btn,
		int	nSteps
	)

Specify the number of steps by which the value is incremented or decremented when a specified button is pushed.

Parámetros:

btn	One of `QwtCounter::Button1`, `QwtCounter::Button2`, `QwtCounter::Button3`
nSteps	Number of steps

void QwtCounter::setMaxValue ( double m )

sets the maximum value of the range

void QwtCounter::setMinValue ( double m )

sets the minimum value of the range

void QwtCounter::setNumButtons ( int n )

Specify the number of buttons on each side of the label.

Parámetros:

n	Number of buttons

void QwtCounter::setStep ( double s )

sets the step size

Reimplementado de QwtDoubleRange.

void QwtCounter::setStepButton1 ( int nSteps )

set the number of increment steps for button 1

void QwtCounter::setStepButton2 ( int nSteps )

set the number of increment steps for button 2

void QwtCounter::setStepButton3 ( int nSteps )

set the number of increment steps for button 3

void QwtCounter::setValue ( double v ) [virtual]

Set a new value.

Parámetros:

v	new value Calls QwtDoubleRange::setValue and does all visual updates.

Ver también:: QwtDoubleRange::setValue

Reimplementado de QwtDoubleRange.

QSize QwtCounter::sizeHint ( ) const [virtual]

A size hint.

Reimplementado de QWidget.

double QwtCounter::step ( ) const

returns the step size

Reimplementado de QwtDoubleRange.

int QwtCounter::stepButton1 ( ) const

int QwtCounter::stepButton2 ( ) const

int QwtCounter::stepButton3 ( ) const

virtual double QwtCounter::value ( ) const [virtual]

Returns the current value.

Reimplementado de QwtDoubleRange.

void QwtCounter::valueChanged ( double value ) [signal]

This signal is emitted when the counter's value has changed

Parámetros:

value The new value

void QwtCounter::wheelEvent ( QWheelEvent * e ) [protected, virtual]

This event handler, for event e, can be reimplemented in a subclass to receive wheel events for the widget.

If you reimplement this handler, it is very important that you ignore() the event if you do not handle it, so that the widget's parent can interpret it.

The default implementation ignores the event.

Ver también:: QWheelEvent::ignore(), QWheelEvent::accept(), event(), QWheelEvent

Reimplementado de QWidget.

Documentación de propiedades

double QwtCounter::basicstep [read, write]

bool QwtCounter::editable [read, write]

returns whether the line edit is edatble. (default is yes)

double QwtCounter::maxValue [read, write]

double QwtCounter::minValue [read, write]

int QwtCounter::numButtons [read, write]

Devuelve:: The number of buttons on each side of the widget.

int QwtCounter::stepButton1 [read, write]

returns the number of increment steps for button 1

int QwtCounter::stepButton2 [read, write]

returns the number of increment steps for button 2

int QwtCounter::stepButton3 [read, write]

returns the number of increment steps for button 3

double QwtCounter::value [read, write]

La documentación para esta clase fue generada a partir de los siguientes ficheros:

src/qwt/src/qwt_counter.h
src/qwt/src/qwt_counter.cpp

Clases

Tipos públicos

Señales

Métodos públicos

Métodos protegidos

Propiedades

Descripción detallada

Documentación de las enumeraciones miembro de la clase

Documentación del constructor y destructor

Documentación de las funciones miembro

Documentación de propiedades