QwtAnalogClock Class Reference

Inheritance diagram for QwtAnalogClock:

[legend]Collaboration diagram for QwtAnalogClock:

[legend]List of all members.

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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);

  

Qwt is missing a set of good looking hands. Contributions are very welcome.

Note:

The examples/dials example shows how to use QwtAnalogClock.

Definition at line 45 of file qwt_analog_clock.h.

Public Types
enum	Hand {   SecondHand,   MinuteHand,   HourHand,   NHands }
Public Slots
void	setCurrentTime ()
void	setTime (const QTime &=QTime::currentTime())
Public Member Functions
	QwtAnalogClock (QWidget *parent=NULL)
virtual	~QwtAnalogClock ()
virtual void	setHand (Hand, QwtDialNeedle *)
const QwtDialNeedle *	hand (Hand) const
QwtDialNeedle *	hand (Hand)
Protected Member Functions
virtual QwtText	scaleLabel (double) const
virtual void	drawNeedle (QPainter *, const QPoint &, int radius, double direction, QPalette::ColorGroup) const
virtual void	drawHand (QPainter *, Hand, const QPoint &, int radius, double direction, QPalette::ColorGroup) const

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Member Enumeration Documentation

enum QwtAnalogClock::Hand

Hand type See also: setHand(), hand() Definition at line 55 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 16 of file qwt_analog_clock.cpp.

QwtAnalogClock::~QwtAnalogClock (   )  [virtual]

Destructor. Definition at line 82 of file qwt_analog_clock.cpp.

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Member Function Documentation

void QwtAnalogClock::drawHand (  QPainter *  painter, Hand  hd, const QPoint &  center, int  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 220 of file qwt_analog_clock.cpp. References QwtDialNeedle::draw(), hand(), and QwtDial::needle(). Referenced by drawNeedle().

void QwtAnalogClock::drawNeedle (  QPainter *  painter, const QPoint &  center, int  radius, double  direction, QPalette::ColorGroup  cg )  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 direction  Dummy, not used. cg  ColorGroup See also: QwtAnalogClock::drawHand() Reimplemented from QwtDial. Definition at line 191 of file qwt_analog_clock.cpp. References drawHand(), QwtAbstractSlider::isValid(), QwtDial::origin(), and QwtDoubleRange::value().

QwtDialNeedle * QwtAnalogClock::hand (  Hand  hd  )

Returns: Clock hand Parameters: hd  Specifies the type of hand See also: QwtAnalogClock::setHand Definition at line 118 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: QwtAnalogClock::setHand Definition at line 131 of file qwt_analog_clock.cpp. Referenced by drawHand().

QwtText QwtAnalogClock::scaleLabel (  double  value  )  const [protected, virtual]

Find the scale label for a given value Parameters: value  Value Returns: Label Reimplemented from QwtDial. Definition at line 168 of file qwt_analog_clock.cpp.

void QwtAnalogClock::setCurrentTime (   )  [slot]

Set the current time. This is the same as QwtAnalogClock::setTime(), but Qt < 3.0 can't handle default parameters for slots. Definition at line 142 of file qwt_analog_clock.cpp. References setTime().

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

Set a clockhand Parameters: hand  Specifies the type of hand needle  Hand See also: QwtAnalogClock::hand() Definition at line 104 of file qwt_analog_clock.cpp. References QwtDial::needle().

void QwtAnalogClock::setTime (  const QTime &  time = QTime::currentTime()  )  [slot]

Set a time Parameters: time  Time to display Definition at line 151 of file qwt_analog_clock.cpp. References QwtAbstractSlider::setValue(). Referenced by setCurrentTime().

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