qwtanalogclock.3

This a framework to test new ideas in transmission technology. Actual development is a LDPC-coder in

.TH "QwtAnalogClock" 3 "4 Nov 2003" "Qwt User's Guide" \" -*- nroff -*-
.ad l
.nh
.SH NAME
QwtAnalogClock \- 
.SH SYNOPSIS
.br
.PP
Inherits \fBQwtDial\fP.
.PP
.SH "Detailed Description"
.PP 
An analog clock. 

 
.PP
\fBExample\fP.RS 4

.PP
.nf
 #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);

  
.PP
.RE
.PP
Qwt is missing a set of good looking hands. Contributions are very welcome.
.PP
\fBNote:\fP
.RS 4
The examples/dials example shows how to use QwtAnalogClock. 
.RE
.PP

.PP
.SS "Public Types"

.in +1c
.ti -1c
.RI "enum \fBHand\fP { \fBSecondHand\fP, \fBMinuteHand\fP, \fBHourHand\fP, \fBNHands\fP }"
.br
.in -1c
.SS "Public Member Functions"

.in +1c
.ti -1c
.RI "\fBQwtAnalogClock\fP (QWidget *parent=0, const  char *name=0)"
.br
.ti -1c
.RI "virtual \fB~QwtAnalogClock\fP ()"
.br
.ti -1c
.RI "virtual void \fBsetHand\fP (Hand, \fBQwtDialNeedle\fP *)"
.br
.ti -1c
.RI "const  \fBQwtDialNeedle\fP * \fBhand\fP (Hand) const "
.br
.ti -1c
.RI "\fBQwtDialNeedle\fP * \fBhand\fP (Hand)"
.br
.ti -1c
.RI "void \fBsetCurrentTime\fP ()"
.br
.ti -1c
.RI "void \fBsetTime\fP (const  QTime &=QTime::currentTime())"
.br
.in -1c
.SS "Protected Member Functions"

.in +1c
.ti -1c
.RI "virtual QString \fBscaleLabel\fP (double) const "
.br
.ti -1c
.RI "virtual void \fBdrawNeedle\fP (QPainter *, const  QPoint &, int radius, double direction, QPalette::ColorGroup) const "
.br
.ti -1c
.RI "virtual void \fBdrawHand\fP (QPainter *, Hand, const  QPoint &, int radius, double direction, QPalette::ColorGroup) const "
.br
.in -1c
.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtAnalogClock::QwtAnalogClock (QWidget * parent = 0, const char * name = 0)"
.PP
Constructor 
.PP
\fBParameters:\fP
.RS 4
\fIparent\fP Parent widget 
.br
\fIname\fP Widget name 
.RE
.PP

.SS "QwtAnalogClock::~\fBQwtAnalogClock\fP ()\fC [virtual]\fP"
.PP
Destructor. 
.SH "Member Function Documentation"
.PP 
.SS "void QwtAnalogClock::drawHand (QPainter * painter, Hand hd, const QPoint & center, int radius, double direction, QPalette::ColorGroup cg) const\fC [protected, virtual]\fP"
.PP
Draw a clock hand
.PP
\fBParameters:\fP
.RS 4
\fIpainter\fP Painter 
.br
\fIhd\fP Specify the type of hand 
.br
\fIcenter\fP Center of the clock 
.br
\fIradius\fP Maximum length for the hands 
.br
\fIdirection\fP Direction of the hand in degrees, counter clockwise 
.br
\fIcg\fP ColorGroup 
.RE
.PP

.SS "void QwtAnalogClock::drawNeedle (QPainter * painter, const QPoint & center, int radius, double direction, QPalette::ColorGroup cg) const\fC [protected, virtual]\fP"
.PP
Draw the needle. A clock has no single needle but three hands instead. drawNeedle translates \fBvalue()\fP into directions for the hands and calls \fBdrawHand()\fP.
.PP
\fBParameters:\fP
.RS 4
\fIpainter\fP Painter 
.br
\fIcenter\fP Center of the clock 
.br
\fIradius\fP Maximum length for the hands 
.br
\fIdirection\fP Dummy, not used. 
.br
\fIcg\fP ColorGroup
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtAnalogClock::drawHand()\fP 
.RE
.PP
Reimplemented from \fBQwtDial\fP.
.SS "\fBQwtDialNeedle\fP * QwtAnalogClock::hand (Hand hd)"
.PP
\fBReturns:\fP
.RS 4
Clock hand 
.RE
.PP
\fBParameters:\fP
.RS 4
\fIhd\fP Specifies the type of hand 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtAnalogClock::setHand\fP 
.RE
.PP

.SS "const  \fBQwtDialNeedle\fP * QwtAnalogClock::hand (Hand hd) const"
.PP
\fBReturns:\fP
.RS 4
Clock hand 
.RE
.PP
\fBParameters:\fP
.RS 4
\fIhd\fP Specifies the type of hand 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtAnalogClock::setHand\fP 
.RE
.PP

.SS "QString QwtAnalogClock::scaleLabel (double value) const\fC [protected, virtual]\fP"
.PP
Find the scale label for a given value
.PP
\fBParameters:\fP
.RS 4
\fIvalue\fP Value 
.RE
.PP
\fBReturns:\fP
.RS 4
Label 
.RE
.PP
Reimplemented from \fBQwtDial\fP.
.SS "void QwtAnalogClock::setCurrentTime ()"
.PP
Set the current time. This is the same as \fBQwtAnalogClock::setTime()\fP, but Qt < 3.0 can磘 handle default parameters for slots. 
.SS "void QwtAnalogClock::setHand (Hand hand, \fBQwtDialNeedle\fP * needle)\fC [virtual]\fP"
.PP
Set a clockhand 
.PP
\fBParameters:\fP
.RS 4
\fIhand\fP Specifies the type of hand 
.br
\fIneedle\fP Hand 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtAnalogClock::hand()\fP 
.RE
.PP

.SS "void QwtAnalogClock::setTime (const QTime & time = QTime::currentTime())"
.PP
Set a time 
.PP
\fBParameters:\fP
.RS 4
\fItime\fP Time to display 
.RE
.PP


.SH "Author"
.PP 
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