trusty (3) QwtAnalogClock.3.gz

NAME

       QwtAnalogClock -

       An analog clock.

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

       Enumerator:

       SecondHand
              Needle displaying the seconds.

       MinuteHand
              Needle displaying the minutes.

       HourHand
              Needle displaying the hours.

       NHands Number of needles.

Constructor & Destructor Documentation

   QwtAnalogClock::QwtAnalogClock (QWidget *parent = NULL) [explicit] Constructor
       Parameters:
           parent Parent widget

   QwtAnalogClock::~QwtAnalogClock () [virtual]
       Destructor.

Member Function Documentation

   void QwtAnalogClock::drawHand (QPainter *painter, Handhd, const QPointF &center, doubleradius,
       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 QPointF &center, doubleradius, doubledir,
       QPalette::ColorGroupcolorGroup) 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.

   QwtDialNeedle * QwtAnalogClock::hand (Handhd) Returns:
           Clock hand

       Parameters:
           hd Specifies the type of hand

       See also:
           setHand()

   const QwtDialNeedle * QwtAnalogClock::hand (Handhd) const 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.