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QwtAnalogClock Class Reference

Inheritance diagram for QwtAnalogClock:

QwtDial QwtSliderBase QwtDblRange List of all members.

Detailed Description

An analog clock.

analogclock.gif
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.


Public Types

enum  Hand {
  SecondHand,
  MinuteHand,
  HourHand,
  NHands
}

Public Member Functions

 QwtAnalogClock (QWidget *parent=0, const char *name=0)
virtual ~QwtAnalogClock ()
virtual void setHand (Hand, QwtDialNeedle *)
const QwtDialNeedlehand (Hand) const
QwtDialNeedlehand (Hand)
void setCurrentTime ()
void setTime (const QTime &=QTime::currentTime())

Protected Member Functions

virtual QString 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


Constructor & Destructor Documentation

QwtAnalogClock::QwtAnalogClock QWidget *  parent = 0,
const char *  name = 0
 

Constructor

Parameters:
parent Parent widget
name Widget name

QwtAnalogClock::~QwtAnalogClock  )  [virtual]
 

Destructor.


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

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.

QwtDialNeedle * QwtAnalogClock::hand Hand  hd  ) 
 

Returns:
Clock hand
Parameters:
hd Specifies the type of hand
See also:
QwtAnalogClock::setHand

const QwtDialNeedle * QwtAnalogClock::hand Hand  hd  )  const
 

Returns:
Clock hand
Parameters:
hd Specifies the type of hand
See also:
QwtAnalogClock::setHand

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

Find the scale label for a given value

Parameters:
value Value
Returns:
Label

Reimplemented from QwtDial.

void QwtAnalogClock::setCurrentTime  ) 
 

Set the current time.

This is the same as QwtAnalogClock::setTime(), but Qt < 3.0 canīt handle default parameters for slots.

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

Set a clockhand

Parameters:
hand Specifies the type of hand
needle Hand
See also:
QwtAnalogClock::hand()

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

Set a time

Parameters:
time Time to display


Generated on Tue Nov 4 09:53:45 2003 for Qwt User's Guide by doxygen 1.3.4