#include <qwt_thermo.h>

Diagrama de herencias de QwtThermo

Clases
class	PrivateData
Tipos públicos
enum	ScalePos { NoScale, LeftScale, RightScale, TopScale, BottomScale }
Slots públicos
void	setValue (double val)
	Set the current value.
Métodos públicos
	QwtThermo (QWidget *parent=NULL)
	QwtThermo (QWidget parent, const char name)
virtual	~QwtThermo ()
	Destructor.
void	setOrientation (Qt::Orientation o, ScalePos s)
	Set the thermometer orientation and the scale position.
void	setScalePosition (ScalePos s)
	Change the scale position (and thermometer orientation).
ScalePos	scalePosition () const
void	setBorderWidth (int w)
	Set the border width of the pipe.
int	borderWidth () const
void	setFillBrush (const QBrush &b)
	Change the brush of the liquid.
const QBrush &	fillBrush () const
void	setFillColor (const QColor &c)
	Change the color of the liquid.
const QColor &	fillColor () const
void	setAlarmBrush (const QBrush &b)
	Specify the liquid brush above the alarm threshold.
const QBrush &	alarmBrush () const
void	setAlarmColor (const QColor &c)
	Specify the liquid color above the alarm threshold.
const QColor &	alarmColor () const
void	setAlarmLevel (double v)
	Specify the alarm threshold.
double	alarmLevel () const
void	setAlarmEnabled (bool tf)
	Enable or disable the alarm threshold.
bool	alarmEnabled () const
void	setPipeWidth (int w)
	Change the width of the pipe.
int	pipeWidth () const
void	setMaxValue (double v)
	Set the maximum value.
double	maxValue () const
void	setMinValue (double v)
	Set the minimum value.
double	minValue () const
double	value () const
void	setRange (double vmin, double vmax, bool lg=false)
	Set the range.
void	setMargin (int m)
	Specify the distance between the pipe's endpoints and the widget's border.
virtual QSize	sizeHint () const
virtual QSize	minimumSizeHint () const
	Return a minimum size hint.
void	setScaleDraw (QwtScaleDraw *)
	Set a scale draw.
const QwtScaleDraw *	scaleDraw () const
Métodos protegidos
void	draw (QPainter *p, const QRect &update_rect)
	Draw the whole QwtThermo.
void	drawThermo (QPainter *p)
	Redraw the liquid in thermometer pipe.
void	layoutThermo (bool update=true)
virtual void	scaleChange ()
	Notify a scale change.
virtual void	fontChange (const QFont &oldFont)
	Notify a font change.
virtual void	paintEvent (QPaintEvent *e)
	Qt paint event.
virtual void	resizeEvent (QResizeEvent *e)
	Qt resize event handler.
QwtScaleDraw *	scaleDraw ()
Propiedades
QBrush	alarmBrush
	Return the liquid brush above the alarm threshold.
QColor	alarmColor
	Return the liquid color above the alarm threshold.
bool	alarmEnabled
	Return if the alarm threshold is enabled or disabled.
double	alarmLevel
	Return the alarm threshold.
ScalePos	scalePosition
	Return the scale position.
int	borderWidth
	Return the border width of the thermometer pipe.
QBrush	fillBrush
	Return the liquid brush.
QColor	fillColor
	Return the liquid color.
double	maxValue
	Return the maximum value.
double	minValue
	Return the minimum value.
int	pipeWidth
	Return the width of the pipe.
double	value
	Return the value.

Descripción detallada

The Thermometer Widget.

QwtThermo is a widget which displays a value in an interval. It supports:

a horizontal or vertical layout;
a range;
a scale;
an alarm level.

By default, the scale and range run over the same interval of values. QwtAbstractScale::setScale() changes the interval of the scale and allows easy conversion between physical units.

The example shows how to make the scale indicate in degrees Fahrenheit and to set the value in degrees Kelvin:

#include <qapplication.h>
#include <qwt_thermo.h>

double Kelvin2Fahrenheit(double kelvin)
{
    // see http://en.wikipedia.org/wiki/Kelvin
    return 1.8*kelvin - 459.67;
}

int main(int argc, char **argv)
{
    const double minKelvin = 0.0;
    const double maxKelvin = 500.0;

    QApplication a(argc, argv);
    QwtThermo t;
    t.setRange(minKelvin, maxKelvin);
    t.setScale(Kelvin2Fahrenheit(minKelvin), Kelvin2Fahrenheit(maxKelvin));
    // set the value in Kelvin but the scale displays in Fahrenheit
    // 273.15 Kelvin = 0 Celsius = 32 Fahrenheit
    t.setValue(273.15);
    a.setMainWidget(&t);
    t.show();
    return a.exec();
}

Tareas pendientes:: Improve the support for a logarithmic range and/or scale.

Documentación de las enumeraciones miembro de la clase

enum QwtThermo::ScalePos

Valores de enumeraciones:

NoScale
LeftScale
RightScale
TopScale
BottomScale

Documentación del constructor y destructor

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

Constructor

Parámetros:

parent Parent widget

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

Constructor

Parámetros:

parent	Parent widget
name	Object name

QwtThermo::~QwtThermo ( ) [virtual]

Destructor.

Documentación de las funciones miembro

const QBrush& QwtThermo::alarmBrush ( ) const

const QColor& QwtThermo::alarmColor ( ) const

bool QwtThermo::alarmEnabled ( ) const

double QwtThermo::alarmLevel ( ) const

int QwtThermo::borderWidth ( ) const

void QwtThermo::draw	(	QPainter *	p,
		const QRect &	update_rect
	)		`[protected]`

Draw the whole QwtThermo.

void QwtThermo::drawThermo ( QPainter * p ) [protected]

Redraw the liquid in thermometer pipe.

const QBrush& QwtThermo::fillBrush ( ) const

const QColor& QwtThermo::fillColor ( ) const

void QwtThermo::fontChange ( const QFont & oldFont ) [protected, virtual]

Notify a font change.

Reimplementado de QWidget.

void QwtThermo::layoutThermo ( bool update_geometry = true ) [protected]

Recalculate the QwtThermo geometry and layout based on the QwtThermo::rect() and the fonts.

Parámetros:

update_geometry notify the layout system and call update to redraw the scale

double QwtThermo::maxValue ( ) const

QSize QwtThermo::minimumSizeHint ( ) const [virtual]

Return a minimum size hint.

Atención:: The return value depends on the font and the scale.

Ver también:: QwtThermo::sizeHint

Reimplementado de QWidget.

double QwtThermo::minValue ( ) const

void QwtThermo::paintEvent ( QPaintEvent * e ) [protected, virtual]

Qt paint event.

Reimplementado de QWidget.

int QwtThermo::pipeWidth ( ) const

void QwtThermo::resizeEvent ( QResizeEvent * e ) [protected, virtual]

Qt resize event handler.

Reimplementado de QWidget.

void QwtThermo::scaleChange ( ) [protected, virtual]

Notify a scale change.

Reimplementado de QwtAbstractScale.

QwtScaleDraw * QwtThermo::scaleDraw ( ) [protected]

Devuelve:: the scale draw of the thermo

Ver también:: setScaleDraw()

const QwtScaleDraw * QwtThermo::scaleDraw ( ) const

Devuelve:: the scale draw of the thermo

Ver también:: setScaleDraw()

ScalePos QwtThermo::scalePosition ( ) const

void QwtThermo::setAlarmBrush ( const QBrush & brush )

Specify the liquid brush above the alarm threshold.

Parámetros:

brush New brush. The default is solid white.

void QwtThermo::setAlarmColor ( const QColor & c )

Specify the liquid color above the alarm threshold.

Parámetros:

c	New color. The default is white.

void QwtThermo::setAlarmEnabled ( bool tf )

Enable or disable the alarm threshold.

Parámetros:

tf	true (disabled) or false (enabled)

void QwtThermo::setAlarmLevel ( double v )

Specify the alarm threshold.

void QwtThermo::setBorderWidth ( int w )

Set the border width of the pipe.

void QwtThermo::setFillBrush ( const QBrush & brush )

Change the brush of the liquid.

Parámetros:

brush New brush. The default brush is solid black.

void QwtThermo::setFillColor ( const QColor & c )

Change the color of the liquid.

Parámetros:

c	New color. The default color is black.

void QwtThermo::setMargin ( int m )

Specify the distance between the pipe's endpoints and the widget's border.

The margin is used to leave some space for the scale labels. If a large font is used, it is advisable to adjust the margins.

Parámetros:

m	New Margin. The default values are 10 for horizontal orientation and 20 for vertical orientation.

Atención:: The margin has no effect if the scale is disabled.; This function is a NOOP because margins are determined automatically.

void QwtThermo::setMaxValue ( double v )

Set the maximum value.

void QwtThermo::setMinValue ( double v )

Set the minimum value.

void QwtThermo::setOrientation	(	Qt::Orientation	o,
		ScalePos	s
	)

Set the thermometer orientation and the scale position.

The scale position NoScale disables the scale.

Parámetros:

o	orientation. Possible values are Qt::Horizontal and Qt::Vertical. The default value is Qt::Vertical.
s	Position of the scale. The default value is NoScale.

A valid combination of scale position and orientation is enforced:

a horizontal thermometer can have the scale positions TopScale, BottomScale or NoScale;
a vertical thermometer can have the scale positions LeftScale, RightScale or NoScale;
an invalid scale position will default to NoScale.

Ver también:: QwtThermo::setScalePosition()

void QwtThermo::setPipeWidth ( int w )

Change the width of the pipe.

void QwtThermo::setRange	(	double	vmin,
		double	vmax,
		bool	logarithmic = `false`
	)

Set the range.

Parámetros:

vmin	value corresponding lower or left end of the thermometer
vmax	value corresponding to the upper or right end of the thermometer
logarithmic	logarithmic mapping, true or false

void QwtThermo::setScaleDraw ( QwtScaleDraw * scaleDraw )

Set a scale draw.

For changing the labels of the scales, it is necessary to derive from QwtScaleDraw and overload QwtScaleDraw::label().

Parámetros:

scaleDraw ScaleDraw object, that has to be created with new and will be deleted in ~QwtThermo or the next call of setScaleDraw().

void QwtThermo::setScalePosition ( ScalePos s )

Change the scale position (and thermometer orientation).

Parámetros:

s	Position of the scale.

A valid combination of scale position and orientation is enforced:

if the new scale position is LeftScale or RightScale, the scale orientation will become Qt::Vertical;
if the new scale position is BottomScale or TopScale, the scale orientation will become Qt::Horizontal;
if the new scale position is NoScale, the scale orientation will not change.

Ver también:: QwtThermo::setOrientation()

void QwtThermo::setValue ( double val ) [slot]

Set the current value.

QSize QwtThermo::sizeHint ( ) const [virtual]

Devuelve:: the minimum size hint

Ver también:: QwtThermo::minimumSizeHint

Reimplementado de QWidget.

double QwtThermo::value ( ) const

Documentación de propiedades

const QBrush & QwtThermo::alarmBrush [read, write]

Return the liquid brush above the alarm threshold.

const QColor & QwtThermo::alarmColor [read, write]

Return the liquid color above the alarm threshold.

bool QwtThermo::alarmEnabled [read, write]

Return if the alarm threshold is enabled or disabled.

double QwtThermo::alarmLevel [read, write]

Return the alarm threshold.

int QwtThermo::borderWidth [read, write]

Return the border width of the thermometer pipe.

const QBrush & QwtThermo::fillBrush [read, write]

Return the liquid brush.

const QColor & QwtThermo::fillColor [read, write]

Return the liquid color.

double QwtThermo::maxValue [read, write]

Return the maximum value.

double QwtThermo::minValue [read, write]

Return the minimum value.

int QwtThermo::pipeWidth [read, write]

Return the width of the pipe.

QwtThermo::ScalePos QwtThermo::scalePosition [read, write]

Return the scale position.

double QwtThermo::value [read, write]

Return the value.

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

src/qwt/src/qwt_thermo.h
src/qwt/src/qwt_thermo.cpp

Clases

Tipos públicos

Slots públicos

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