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QwtAnalogClock(3) Qwt User's Guide QwtAnalogClock(3)

NAME

QwtAnalogClock -

SYNOPSIS

#include <qwt_analog_clock.h>

Inherits QwtDial.

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 ()
const QwtDialNeedle * hand (Hand) const
QwtDialNeedle * hand (Hand)
virtual void setHand (Hand, QwtDialNeedle *)

Protected Member Functions


virtual void drawHand (QPainter *, Hand, const QPoint &, int radius, double direction, QPalette::ColorGroup) const
virtual void drawNeedle (QPainter *, const QPoint &, int radius, double direction, QPalette::ColorGroup) const
virtual QwtText scaleLabel (double) const

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.

Member Enumeration Documentation

enum QwtAnalogClock::Hand

Hand type

See also:

setHand(), hand()

Constructor & Destructor Documentation

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

Constructor

Parameters:

parent Parent widget

Member Function Documentation

void QwtAnalogClock::drawHand (QPainter *painter, Handhd, const QPoint &center, intradius, doubledirection, QPalette::ColorGroupcg) 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

void QwtAnalogClock::drawNeedle (QPainter *painter, const QPoint &center, intradius, doubledirection, QPalette::ColorGroupcg) 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:

drawHand()

Reimplemented from QwtDial.

const QwtDialNeedle * QwtAnalogClock::hand (Handhd) const

Returns:
Clock hand

Parameters:

hd Specifies the type of hand

See also:

setHand()

QwtDialNeedle * QwtAnalogClock::hand (Handhd)

Returns:
Clock hand

Parameters:

hd Specifies the type of hand

See also:

setHand()

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

Find the scale label for a given value

Parameters:

value Value

Returns:

Label

Reimplemented from QwtDial.

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.

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

Set a clockhand

Parameters:

hand Specifies the type of hand
needle Hand

See also:

hand()

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

Set a time

Parameters:

time Time to display

Author

Generated automatically by Doxygen for Qwt User's Guide from the source code.
Tue Nov 20 2012 Version 5.2.3