QwtAnalogClock Class Reference

An analog clock. More...

#include <qwt_analog_clock.h>

Inheritance diagram for QwtAnalogClock:

List of all members.

Public Types
enum	Hand { SecondHand, MinuteHand, HourHand, NHands }
Public Slots
void	setCurrentTime ()
	Set the current time.
void	setTime (const QTime &)
Public Member Functions
const QwtDialNeedle *	hand (Hand) const
QwtDialNeedle *	hand (Hand)
	QwtAnalogClock (QWidget *parent=NULL)
void	setHand (Hand, QwtDialNeedle *)
virtual	~QwtAnalogClock ()
	Destructor.
Protected Member Functions
virtual void	drawHand (QPainter *, Hand, const QPointF &, double radius, double direction, QPalette::ColorGroup) const
virtual void	drawNeedle (QPainter *, const QPointF &, double radius, double direction, QPalette::ColorGroup) const
	Draw the needle.
Private Member Functions
void	setNeedle (QwtDialNeedle *)
Private Attributes
QwtDialNeedle *	d_hand [NHands]

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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);

Note:

The examples/dials example shows how to use QwtAnalogClock.

Definition at line 43 of file qwt_analog_clock.h.

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Member Enumeration Documentation

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.

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Constructor & Destructor Documentation

QwtAnalogClock::QwtAnalogClock

(

QWidget *

parent = NULL

)

[explicit]

Constructor

Parameters:

parent

Parent widget

Definition at line 44 of file qwt_analog_clock.cpp.

QwtAnalogClock::~QwtAnalogClock

(

)

[virtual]

Destructor.

Definition at line 103 of file qwt_analog_clock.cpp.

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Member Function Documentation

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

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 232 of file qwt_analog_clock.cpp.

void QwtAnalogClock::drawNeedle	(	QPainter *	painter,
		const QPointF &	center,
		double	radius,
		double	dir,
		QPalette::ColorGroup	colorGroup
	)		const [protected, virtual]

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
dir	Dummy, not used.
colorGroup	ColorGroup

See also:

drawHand()

Reimplemented from QwtDial.

Definition at line 195 of file qwt_analog_clock.cpp.

const QwtDialNeedle * QwtAnalogClock::hand

(

Hand

hd

)

const

Returns:

Clock hand

Parameters:

hd	Specifies the type of hand

See also:

setHand()

Definition at line 152 of file qwt_analog_clock.cpp.

QwtDialNeedle * QwtAnalogClock::hand

(

Hand

hd

)

Returns:

Clock hand

Parameters:

hd	Specifies the type of hand

See also:

setHand()

Definition at line 139 of file qwt_analog_clock.cpp.

void QwtAnalogClock::setCurrentTime

(

)

[slot]

Set the current time.

Definition at line 160 of file qwt_analog_clock.cpp.

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 125 of file qwt_analog_clock.cpp.

void QwtAnalogClock::setNeedle

(

QwtDialNeedle *

)

[private]

Nop method, use setHand() instead

See also:

setHand()

Reimplemented from QwtDial.

Definition at line 113 of file qwt_analog_clock.cpp.

void QwtAnalogClock::setTime

(

const QTime &

time

)

[slot]

Set a time

Parameters:

time	Time to display

Definition at line 169 of file qwt_analog_clock.cpp.

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Member Data Documentation

QwtDialNeedle* QwtAnalogClock::d_hand[NHands] [private]

Definition at line 90 of file qwt_analog_clock.h.

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The documentation for this class was generated from the following files:

• qwt_analog_clock.h
• qwt_analog_clock.cpp