An analog clock. More...

#include <qwt_analog_clock.h>

Inheritance diagram for QwtAnalogClock:

Public Types
enum	Hand { SecondHand , MinuteHand , HourHand , NHands }

Public Types inherited from QwtDial
enum	Shadow { Plain = QFrame::Plain , Raised = QFrame::Raised , Sunken = QFrame::Sunken }
	Frame shadow. More...

enum	Mode { RotateNeedle , RotateScale }
	Mode controlling whether the needle or the scale is rotating. More...

Public Slots
void	setCurrentTime ()
	Set the current time.

void	setTime (const QTime &)

Public Slots inherited from QwtAbstractSlider
void	setValue (double value)

Public Member Functions
	QwtAnalogClock (QWidget *parent=NULL)

virtual	~QwtAnalogClock ()
	Destructor.

void	setHand (Hand, QwtDialNeedle *)

const QwtDialNeedle *	hand (Hand) const

QwtDialNeedle *	hand (Hand)

Public Member Functions inherited from QwtDial
	QwtDial (QWidget *parent=NULL)
	Constructor.

virtual	~QwtDial ()
	Destructor.

void	setFrameShadow (Shadow)

Shadow	frameShadow () const

void	setLineWidth (int)

int	lineWidth () const

void	setMode (Mode)
	Change the mode of the dial.

Mode	mode () const

void	setScaleArc (double minArc, double maxArc)

void	setMinScaleArc (double)

double	minScaleArc () const

void	setMaxScaleArc (double)

double	maxScaleArc () const

virtual void	setOrigin (double)
	Change the origin.

double	origin () const

void	setNeedle (QwtDialNeedle *)

const QwtDialNeedle *	needle () const

QwtDialNeedle *	needle ()

QRect	boundingRect () const

QRect	innerRect () const

virtual QRect	scaleInnerRect () const

virtual QSize	sizeHint () const override

virtual QSize	minimumSizeHint () const override

void	setScaleDraw (QwtRoundScaleDraw *)

QwtRoundScaleDraw *	scaleDraw ()

const QwtRoundScaleDraw *	scaleDraw () const

Public Member Functions inherited from QwtAbstractSlider
	QwtAbstractSlider (QWidget *parent=NULL)
	Constructor.

virtual	~QwtAbstractSlider ()
	Destructor.

void	setValid (bool)

bool	isValid () const

double	value () const
	Returns the current value.

void	setWrapping (bool)

bool	wrapping () const

void	setTotalSteps (uint)
	Set the number of steps.

uint	totalSteps () const

void	setSingleSteps (uint)
	Set the number of steps for a single increment.

uint	singleSteps () const

void	setPageSteps (uint)
	Set the number of steps for a page increment.

uint	pageSteps () const

void	setStepAlignment (bool)
	Enable step alignment.

bool	stepAlignment () const

void	setTracking (bool)
	Enables or disables tracking.

bool	isTracking () const

void	setReadOnly (bool)

bool	isReadOnly () const

void	setInvertedControls (bool)

bool	invertedControls () const

Public Member Functions inherited from QwtAbstractScale
	QwtAbstractScale (QWidget *parent=NULL)

virtual	~QwtAbstractScale ()
	Destructor.

void	setScale (double lowerBound, double upperBound)
	Specify a scale.

void	setScale (const QwtInterval &)
	Specify a scale.

void	setScale (const QwtScaleDiv &)
	Specify a scale.

const QwtScaleDiv &	scaleDiv () const

void	setLowerBound (double value)

double	lowerBound () const

void	setUpperBound (double value)

double	upperBound () const

void	setScaleStepSize (double stepSize)
	Set the step size used for calculating a scale division.

double	scaleStepSize () const

void	setScaleMaxMajor (int ticks)
	Set the maximum number of major tick intervals.

int	scaleMaxMinor () const

void	setScaleMaxMinor (int ticks)
	Set the maximum number of minor tick intervals.

int	scaleMaxMajor () const

void	setScaleEngine (QwtScaleEngine *)
	Set a scale engine.

const QwtScaleEngine *	scaleEngine () const

QwtScaleEngine *	scaleEngine ()

int	transform (double) const

double	invTransform (int) const

bool	isInverted () const

double	minimum () const

double	maximum () const

const QwtScaleMap &	scaleMap () const

Protected Member Functions
virtual void	drawNeedle (QPainter *, const QPointF &, double radius, double direction, QPalette::ColorGroup) const override
	Draw the needle.

virtual void	drawHand (QPainter *, Hand, const QPointF &, double radius, double direction, QPalette::ColorGroup) const

Protected Member Functions inherited from QwtDial
virtual void	wheelEvent (QWheelEvent *) override

virtual void	paintEvent (QPaintEvent *) override

virtual void	changeEvent (QEvent *) override

virtual void	drawFrame (QPainter *)

virtual void	drawContents (QPainter *) const
	Draw the contents inside the frame.

virtual void	drawFocusIndicator (QPainter *) const

void	invalidateCache ()

virtual void	drawScale (QPainter *, const QPointF &center, double radius) const

virtual void	drawScaleContents (QPainter *painter, const QPointF &center, double radius) const

virtual double	scrolledTo (const QPoint &) const override
	Determine the value for a new position of the slider handle.

virtual bool	isScrollPosition (const QPoint &) const override
	Determine what to do when the user presses a mouse button.

virtual void	sliderChange () override
	Calling update()

virtual void	scaleChange () override

Protected Member Functions inherited from QwtAbstractSlider
virtual void	mousePressEvent (QMouseEvent *) override

virtual void	mouseReleaseEvent (QMouseEvent *) override

virtual void	mouseMoveEvent (QMouseEvent *) override

virtual void	keyPressEvent (QKeyEvent *) override

void	incrementValue (int stepCount)

double	incrementedValue (double value, int stepCount) const

Protected Member Functions inherited from QwtAbstractScale
void	rescale (double lowerBound, double upperBound, double stepSize)

void	setAbstractScaleDraw (QwtAbstractScaleDraw *)
	Set a scale draw.

const QwtAbstractScaleDraw *	abstractScaleDraw () const

QwtAbstractScaleDraw *	abstractScaleDraw ()

void	updateScaleDraw ()

Additional Inherited Members
Signals inherited from QwtAbstractSlider
void	valueChanged (double value)
	Notify a change of value.

void	sliderPressed ()

void	sliderReleased ()

void	sliderMoved (double value)

Detailed Description

An analog clock.

Example: #include <qwt_analog_clock.h>

QwtAnalogClock *clock = new QwtAnalogClock(...);

clock->scaleDraw()->setPenWidth(3);

clock->setLineWidth(6);

clock->setFrameShadow(QwtDial::Sunken);

clock->setTime();

// update the clock every second

QTimer *timer = new QTimer(clock);

timer->connect(timer, SIGNAL(timeout()), clock, SLOT(setCurrentTime()));

timer->start(1000);

QwtAnalogClock
An analog clock.
Definition qwt_analog_clock.h:44

QwtAnalogClock::setCurrentTime
void setCurrentTime()
Set the current time.
Definition qwt_analog_clock.cpp:167

QwtAnalogClock::setTime
void setTime(const QTime &)
Definition qwt_analog_clock.cpp:176

QwtAnalogClock::QwtAnalogClock
QwtAnalogClock(QWidget *parent=NULL)
Definition qwt_analog_clock.cpp:51

QwtDial::setFrameShadow
void setFrameShadow(Shadow)
Definition qwt_dial.cpp:170

QwtDial::Sunken
@ Sunken
QFrame::Sunken.
Definition qwt_dial.h:82

QwtDial::setLineWidth
void setLineWidth(int)
Definition qwt_dial.cpp:197

QwtDial::scaleDraw
QwtRoundScaleDraw * scaleDraw()
Definition qwt_dial.cpp:553

Note: The examples/dials example shows how to use QwtAnalogClock.

Definition at line 43 of file qwt_analog_clock.h.

Member Enumeration Documentation

◆ Hand

enum QwtAnalogClock::Hand

Hand type

See also: setHand(), hand()

Enumerator
SecondHand	Needle displaying the seconds.
MinuteHand	Needle displaying the minutes.
HourHand	Needle displaying the hours.
NHands	Number of needles.

Definition at line 52 of file qwt_analog_clock.h.

Constructor & Destructor Documentation

◆ QwtAnalogClock()

QwtAnalogClock::QwtAnalogClock ( QWidget * parent = NULL )

explicit

Constructor

Parameters

parent Parent widget

Definition at line 51 of file qwt_analog_clock.cpp.

◆ ~QwtAnalogClock()

QwtAnalogClock::~QwtAnalogClock ( )

virtual

Destructor.

Definition at line 110 of file qwt_analog_clock.cpp.

Member Function Documentation

◆ drawHand()

void QwtAnalogClock::drawHand	(	QPainter *	painter,
		Hand	hd,
		const QPointF &	center,
		double	radius,
		double	direction,
		QPalette::ColorGroup	cg ) const

protectedvirtual

Draw a clock hand

Parameters

painter	Painter
hd	Specify the type of hand
center	Center of the clock
radius	Maximum length for the hands
direction	Direction of the hand in degrees, counter clockwise
cg	ColorGroup

Definition at line 239 of file qwt_analog_clock.cpp.

◆ drawNeedle()

void QwtAnalogClock::drawNeedle	(	QPainter *	painter,
		const QPointF &	center,
		double	radius,
		double	direction,
		QPalette::ColorGroup	colorGroup ) const

overrideprotectedvirtual

Draw the needle.

A clock has no single needle but three hands instead. drawNeedle() translates value() into directions for the hands and calls drawHand().

Parameters

painter	Painter
center	Center of the clock
radius	Maximum length for the hands
direction	Dummy, not used.
colorGroup	ColorGroup

See also: drawHand()

Reimplemented from QwtDial.

Definition at line 202 of file qwt_analog_clock.cpp.

◆ hand() [1/2]

QwtDialNeedle * QwtAnalogClock::hand ( Hand hd )

Returns: Clock hand

Parameters

hd	Specifies the type of hand

See also: setHand()

Definition at line 146 of file qwt_analog_clock.cpp.

◆ hand() [2/2]

const QwtDialNeedle * QwtAnalogClock::hand ( Hand hd ) const

Returns: Clock hand

Parameters

hd	Specifies the type of hand

See also: setHand()

Definition at line 159 of file qwt_analog_clock.cpp.

◆ setCurrentTime

void QwtAnalogClock::setCurrentTime ( )

slot

Set the current time.

Definition at line 167 of file qwt_analog_clock.cpp.

◆ setHand()

void QwtAnalogClock::setHand	(	Hand	hand,
		QwtDialNeedle *	needle )

Set a clock hand

Parameters

hand	Specifies the type of hand
needle	Hand

See also: hand()

Definition at line 132 of file qwt_analog_clock.cpp.

◆ setTime

void QwtAnalogClock::setTime ( const QTime & time )

slot

Set a time

Parameters

time	Time to display

Definition at line 176 of file qwt_analog_clock.cpp.

Public Types

Public Slots

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ Hand

Constructor & Destructor Documentation

◆ QwtAnalogClock()

◆ ~QwtAnalogClock()

Member Function Documentation

◆ drawHand()

◆ drawNeedle()

◆ hand() [1/2]

◆ hand() [2/2]

◆ setCurrentTime

◆ setHand()

◆ setTime