qwtanalogclock.3

linux下qt的第三方的一个类

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.TH "QwtAnalogClock" 3 "16 Nov 2004" "Version 4.2.0" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtAnalogClock \- 
.SH SYNOPSIS
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Inherits \fBQwtDial\fP.
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.SH "Detailed Description"
.PP 
An analog clock. 

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\fBExample\fP.RS 4

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.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);

  
.fi
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.RE
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Qwt is missing a set of good looking hands. Contributions are very welcome.
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\fBNote:\fP
.RS 4
The examples/dials example shows how to use QwtAnalogClock. 
.RE
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Definition at line 45 of file qwt_analog_clock.h.
.SS "Public Types"

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.RI "enum \fBHand\fP { \fBSecondHand\fP, \fBMinuteHand\fP, \fBHourHand\fP, \fBNHands\fP }"
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.SS "Public Slots"

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.RI "void \fBsetCurrentTime\fP ()"
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.RI "void \fBsetTime\fP (const QTime &=QTime::currentTime())"
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.SS "Public Member Functions"

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.RI "\fBQwtAnalogClock\fP (QWidget *parent=0, const char *name=0)"
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.RI "virtual \fB~QwtAnalogClock\fP ()"
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.RI "virtual void \fBsetHand\fP (Hand, \fBQwtDialNeedle\fP *)"
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.RI "const \fBQwtDialNeedle\fP * \fBhand\fP (Hand) const"
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.RI "\fBQwtDialNeedle\fP * \fBhand\fP (Hand)"
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.SS "Protected Member Functions"

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.RI "virtual QString \fBscaleLabel\fP (double) const"
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.RI "virtual void \fBdrawNeedle\fP (QPainter *, const QPoint &, int radius, double direction, QPalette::ColorGroup) const"
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.RI "virtual void \fBdrawHand\fP (QPainter *, Hand, const QPoint &, int radius, double direction, QPalette::ColorGroup) const"
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.SH "Constructor & Destructor Documentation"
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.SS "QwtAnalogClock::QwtAnalogClock (QWidget * parent = \fC0\fP, const char * name = \fC0\fP)"
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Constructor 
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\fBParameters:\fP
.RS 4
\fIparent\fP Parent widget 
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\fIname\fP Widget name 
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Definition at line 8 of file qwt_analog_clock.cpp.
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References hand(), setHand(), QwtDial::setOrigin(), QwtDblRange::setRange(), QwtSliderBase::setReadOnly(), QwtDial::setScale(), QwtDial::setScaleOptions(), QwtDial::setScaleTicks(), QwtDialSimpleNeedle::setWidth(), and QwtDial::setWrapping().
.SS "QwtAnalogClock::~\fBQwtAnalogClock\fP ()\fC [virtual]\fP"
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Destructor. 
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Definition at line 50 of file qwt_analog_clock.cpp.
.SH "Member Function Documentation"
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.SS "void QwtAnalogClock::drawHand (QPainter * painter, Hand hd, const QPoint & center, int radius, double direction, QPalette::ColorGroup cg) const\fC [protected, virtual]\fP"
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Draw a clock hand
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\fBParameters:\fP
.RS 4
\fIpainter\fP Painter 
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\fIhd\fP Specify the type of hand 
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\fIcenter\fP Center of the clock 
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\fIradius\fP Maximum length for the hands 
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\fIdirection\fP Direction of the hand in degrees, counter clockwise 
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\fIcg\fP ColorGroup 
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Definition at line 191 of file qwt_analog_clock.cpp.
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References QwtDialNeedle::draw(), and hand().
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Referenced by drawNeedle().
.SS "void QwtAnalogClock::drawNeedle (QPainter * painter, const QPoint & center, int radius, double direction, QPalette::ColorGroup cg) const\fC [protected, virtual]\fP"
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Draw the needle. 
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A clock has no single needle but three hands instead. drawNeedle translates \fBvalue()\fP into directions for the hands and calls \fBdrawHand()\fP.
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIcenter\fP Center of the clock 
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\fIradius\fP Maximum length for the hands 
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\fIdirection\fP Dummy, not used. 
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\fIcg\fP ColorGroup
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\fBSee also:\fP
.RS 4
\fBQwtAnalogClock::drawHand()\fP 
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Reimplemented from \fBQwtDial\fP.
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Definition at line 162 of file qwt_analog_clock.cpp.
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References drawHand(), QwtSliderBase::isValid(), QwtDial::origin(), and QwtDblRange::value().
.SS "\fBQwtDialNeedle\fP * QwtAnalogClock::hand (Hand hd)"
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\fBReturns:\fP
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Clock hand 
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\fBParameters:\fP
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\fIhd\fP Specifies the type of hand 
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\fBSee also:\fP
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\fBQwtAnalogClock::setHand\fP 
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Definition at line 86 of file qwt_analog_clock.cpp.
.SS "const \fBQwtDialNeedle\fP * QwtAnalogClock::hand (Hand hd) const"
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\fBReturns:\fP
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Clock hand 
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\fBParameters:\fP
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\fIhd\fP Specifies the type of hand 
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\fBSee also:\fP
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\fBQwtAnalogClock::setHand\fP 
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Definition at line 99 of file qwt_analog_clock.cpp.
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Referenced by drawHand(), and QwtAnalogClock().
.SS "QString QwtAnalogClock::scaleLabel (double value) const\fC [protected, virtual]\fP"
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Find the scale label for a given value
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\fBParameters:\fP
.RS 4
\fIvalue\fP Value 
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\fBReturns:\fP
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Label 
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Reimplemented from \fBQwtDial\fP.
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Definition at line 136 of file qwt_analog_clock.cpp.
.SS "void QwtAnalogClock::setCurrentTime ()\fC [slot]\fP"
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Set the current time. 
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This is the same as \fBQwtAnalogClock::setTime()\fP, but Qt < 3.0 can磘 handle default parameters for slots. Definition at line 110 of file qwt_analog_clock.cpp.
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References setTime().
.SS "void QwtAnalogClock::setHand (Hand hand, \fBQwtDialNeedle\fP * needle)\fC [virtual]\fP"
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Set a clockhand 
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\fBParameters:\fP
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\fIhand\fP Specifies the type of hand 
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\fIneedle\fP Hand 
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\fBSee also:\fP
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\fBQwtAnalogClock::hand()\fP 
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Definition at line 72 of file qwt_analog_clock.cpp.
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Referenced by QwtAnalogClock().
.SS "void QwtAnalogClock::setTime (const QTime & time = \fCQTime::currentTime()\fP)\fC [slot]\fP"
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Set a time 
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\fBParameters:\fP
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\fItime\fP Time to display 
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Definition at line 119 of file qwt_analog_clock.cpp.
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References QwtSliderBase::setValid(), and QwtSliderBase::setValue().
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Referenced by setCurrentTime().

.SH "Author"
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Generated automatically by Doxygen for Qwt User's Guide from the source code.