.TH "QwtWheel" 3 "Mon Aug 1 2011" "Version 5.2.2" "Qwt User's Guide" \" -*- nroff -*-
.ad l
.nh
.SH NAME
QwtWheel \- 
.PP
The Wheel Widget.  

.SH SYNOPSIS
.br
.PP
.PP
\fC#include <qwt_wheel.h>\fP
.PP
Inherits \fBQwtAbstractSlider\fP.
.SS "Public Types"

.in +1c
.ti -1c
.RI "enum \fBScrollMode\fP { \fBScrNone\fP, \fBScrMouse\fP, \fBScrTimer\fP, \fBScrDirect\fP, \fBScrPage\fP }"
.br
.in -1c
.SS "Public Slots"

.in +1c
.ti -1c
.RI "virtual void \fBfitValue\fP (double val)"
.br
.ti -1c
.RI "virtual void \fBincValue\fP (int steps)"
.br
.ti -1c
.RI "virtual void \fBsetReadOnly\fP (bool)"
.br
.ti -1c
.RI "virtual void \fBsetValue\fP (double val)"
.br
.in -1c
.SS "Signals"

.in +1c
.ti -1c
.RI "void \fBsliderMoved\fP (double value)"
.br
.ti -1c
.RI "void \fBsliderPressed\fP ()"
.br
.ti -1c
.RI "void \fBsliderReleased\fP ()"
.br
.ti -1c
.RI "void \fBvalueChanged\fP (double value)"
.br
.in -1c
.SS "Public Member Functions"

.in +1c
.ti -1c
.RI "virtual void \fBincPages\fP (int)"
.br
.ti -1c
.RI "int \fBinternalBorder\fP () const "
.br
.ti -1c
.RI "bool \fBisReadOnly\fP () const "
.br
.ti -1c
.RI "bool \fBisValid\fP () const "
.br
.ti -1c
.RI "double \fBmass\fP () const "
.br
.ti -1c
.RI "double \fBmaxValue\fP () const "
.br
.ti -1c
.RI "virtual QSize \fBminimumSizeHint\fP () const "
.br
.ti -1c
.RI "double \fBminValue\fP () const "
.br
.ti -1c
.RI "Qt::Orientation \fBorientation\fP () const "
.br
.ti -1c
.RI "int \fBpageSize\fP () const "
.br
.ti -1c
.RI "bool \fBperiodic\fP () const "
.br
.ti -1c
.RI "\fBQwtWheel\fP (QWidget *parent=NULL)"
.br
.ti -1c
.RI "void \fBsetInternalBorder\fP (int width)"
.br
.ti -1c
.RI "void \fBsetMass\fP (double val)"
.br
.ti -1c
.RI "virtual void \fBsetOrientation\fP (Qt::Orientation)"
.br
.ti -1c
.RI "void \fBsetPeriodic\fP (bool tf)"
.br
.ti -1c
.RI "void \fBsetRange\fP (double vmin, double vmax, double vstep=0.0, int pagesize=1)"
.br
.ti -1c
.RI "void \fBsetStep\fP (double)"
.br
.ti -1c
.RI "void \fBsetTickCnt\fP (int cnt)"
.br
.ti -1c
.RI "void \fBsetTotalAngle\fP (double angle)"
.br
.ti -1c
.RI "void \fBsetTracking\fP (bool enable)"
.br
.ti -1c
.RI "void \fBsetUpdateTime\fP (int t)"
.br
.ti -1c
.RI "void \fBsetValid\fP (bool valid)"
.br
.ti -1c
.RI "void \fBsetViewAngle\fP (double angle)"
.br
.ti -1c
.RI "void \fBsetWheelWidth\fP (int w)"
.br
.ti -1c
.RI "virtual QSize \fBsizeHint\fP () const "
.br
.ti -1c
.RI "double \fBstep\fP () const "
.br
.ti -1c
.RI "void \fBstopMoving\fP ()"
.br
.ti -1c
.RI "int \fBtickCnt\fP () const "
.br
.ti -1c
.RI "double \fBtotalAngle\fP () const "
.br
.ti -1c
.RI "double \fBvalue\fP () const "
.br
.ti -1c
.RI "double \fBviewAngle\fP () const "
.br
.ti -1c
.RI "virtual \fB~QwtWheel\fP ()"
.br
.in -1c
.SS "Protected Member Functions"

.in +1c
.ti -1c
.RI "void \fBdraw\fP (QPainter *, const QRect &)"
.br
.ti -1c
.RI "void \fBdrawWheel\fP (QPainter *, const QRect &)"
.br
.ti -1c
.RI "void \fBdrawWheelBackground\fP (QPainter *, const QRect &)"
.br
.ti -1c
.RI "double \fBexactPrevValue\fP () const "
.br
.ti -1c
.RI "double \fBexactValue\fP () const "
.br
.ti -1c
.RI "virtual void \fBgetScrollMode\fP (const QPoint &, int &scrollMode, int &direction)"
.br
.ti -1c
.RI "virtual double \fBgetValue\fP (const QPoint &)"
.br
.ti -1c
.RI "virtual void \fBkeyPressEvent\fP (QKeyEvent *e)"
.br
.ti -1c
.RI "void \fBlayoutWheel\fP (bool update=true)"
.br
.ti -1c
.RI "virtual void \fBmouseMoveEvent\fP (QMouseEvent *e)"
.br
.ti -1c
.RI "double \fBmouseOffset\fP () const "
.br
.ti -1c
.RI "virtual void \fBmousePressEvent\fP (QMouseEvent *e)"
.br
.ti -1c
.RI "virtual void \fBmouseReleaseEvent\fP (QMouseEvent *e)"
.br
.ti -1c
.RI "virtual void \fBpaintEvent\fP (QPaintEvent *e)"
.br
.ti -1c
.RI "virtual void \fBpaletteChange\fP (const QPalette &)"
.br
.ti -1c
.RI "double \fBprevValue\fP () const "
.br
.ti -1c
.RI "virtual void \fBrangeChange\fP ()"
.br
.ti -1c
.RI "virtual void \fBresizeEvent\fP (QResizeEvent *e)"
.br
.ti -1c
.RI "int \fBscrollMode\fP () const "
.br
.ti -1c
.RI "void \fBsetColorArray\fP ()"
.br
.ti -1c
.RI "void \fBsetMouseOffset\fP (double)"
.br
.ti -1c
.RI "virtual void \fBsetPosition\fP (const QPoint &)"
.br
.ti -1c
.RI "virtual void \fBstepChange\fP ()"
.br
.ti -1c
.RI "virtual void \fBtimerEvent\fP (QTimerEvent *e)"
.br
.ti -1c
.RI "virtual void \fBvalueChange\fP ()"
.br
.ti -1c
.RI "virtual void \fBwheelEvent\fP (QWheelEvent *e)"
.br
.in -1c
.SH "Detailed Description"
.PP 
The Wheel Widget. 

The wheel widget can be used to change values over a very large range in very small steps. Using the setMass member, it can be configured as a flywheel.
.PP
\fBSee also:\fP
.RS 4
The radio example. 
.RE
.PP

.SH "Member Enumeration Documentation"
.PP 
.SS "enum \fBQwtAbstractSlider::ScrollMode\fP\fC [inherited]\fP"Scroll mode 
.PP
\fBSee also:\fP
.RS 4
\fBgetScrollMode()\fP 
.RE
.PP

.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtWheel::QwtWheel (QWidget *parent = \fCNULL\fP)\fC [explicit]\fP"
.PP
Constructor. 
.SS "QwtWheel::~QwtWheel ()\fC [virtual]\fP"
.PP
Destructor. 
.SH "Member Function Documentation"
.PP 
.SS "void QwtWheel::draw (QPainter *painter, const QRect &)\fC [protected]\fP"Redraw panel and wheel 
.PP
\fBParameters:\fP
.RS 4
\fIpainter\fP Painter 
.RE
.PP

.SS "void QwtWheel::drawWheel (QPainter *painter, const QRect &r)\fC [protected]\fP"
.PP
Redraw the wheel. \fBParameters:\fP
.RS 4
\fIpainter\fP painter 
.br
\fIr\fP contents rectangle 
.RE
.PP

.SS "void QwtWheel::drawWheelBackground (QPainter *painter, const QRect &r)\fC [protected]\fP"Draw the Wheel's background gradient
.PP
\fBParameters:\fP
.RS 4
\fIpainter\fP Painter 
.br
\fIr\fP Bounding rectangle 
.RE
.PP

.SS "double QwtDoubleRange::exactPrevValue () const\fC [protected, inherited]\fP"
.PP
Returns the exact previous value. 
.SS "double QwtDoubleRange::exactValue () const\fC [protected, inherited]\fP"
.PP
Returns the exact value. The exact value is the value which \fBQwtDoubleRange::value\fP would return if the value were not adjusted to the step raster. It differs from the current value only if \fBQwtDoubleRange::fitValue\fP or \fBQwtDoubleRange::incValue\fP have been used before. This function is intended for internal use in derived classes. 
.SS "void QwtAbstractSlider::fitValue (doublevalue)\fC [virtual, slot, inherited]\fP"
.PP
Set the slider's value to the nearest integer multiple of the step size. \fBParameters:\fP
.RS 4
\fIvalue\fP Value 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetValue()\fP, \fBincValue()\fP 
.RE
.PP

.PP
Reimplemented from \fBQwtDoubleRange\fP.
.SS "void QwtWheel::getScrollMode (const QPoint &p, int &scrollMode, int &direction)\fC [protected, virtual]\fP"
.PP
Determine the scrolling mode and direction corresponding to a specified point. \fBParameters:\fP
.RS 4
\fIp\fP point 
.br
\fIscrollMode\fP scrolling mode 
.br
\fIdirection\fP direction 
.RE
.PP

.PP
Implements \fBQwtAbstractSlider\fP.
.SS "double QwtWheel::getValue (const QPoint &p)\fC [protected, virtual]\fP"
.PP
Determine the value corresponding to a specified point. 
.PP
Implements \fBQwtAbstractSlider\fP.
.SS "void QwtDoubleRange::incPages (intnPages)\fC [virtual, inherited]\fP"
.PP
Increment the value by a specified number of pages. \fBParameters:\fP
.RS 4
\fInPages\fP Number of pages to increment. A negative number decrements the value. 
.RE
.PP
\fBWarning:\fP
.RS 4
The Page size is specified in the constructor. 
.RE
.PP

.SS "void QwtAbstractSlider::incValue (intsteps)\fC [virtual, slot, inherited]\fP"
.PP
Increment the value by a specified number of steps. \fBParameters:\fP
.RS 4
\fIsteps\fP number of steps 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetValue()\fP 
.RE
.PP

.PP
Reimplemented from \fBQwtDoubleRange\fP.
.SS "int QwtWheel::internalBorder () const"\fBReturns:\fP
.RS 4
Internal border width of the wheel. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetInternalBorder()\fP 
.RE
.PP

.SS "bool QwtAbstractSlider::isReadOnly () const\fC [inherited]\fP"In read only mode the slider can't be controlled by mouse or keyboard.
.PP
\fBReturns:\fP
.RS 4
true if read only 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetReadOnly()\fP 
.RE
.PP

.SS "bool QwtAbstractSlider::isValid () const\fC [inline, inherited]\fP"\fBSee also:\fP
.RS 4
QwtDblRange::isValid() 
.RE
.PP

.PP
Reimplemented from \fBQwtDoubleRange\fP.
.SS "void QwtAbstractSlider::keyPressEvent (QKeyEvent *e)\fC [protected, virtual, inherited]\fP"Handles key events
.PP
.IP "\(bu" 2
Key_Down, KeyLeft
.br
 Decrement by 1
.IP "\(bu" 2
Key_Up, Key_Right
.br
 Increment by 1
.PP
.PP
\fBParameters:\fP
.RS 4
\fIe\fP Key event 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBisReadOnly()\fP 
.RE
.PP

.PP
Reimplemented in \fBQwtCompass\fP, and \fBQwtDial\fP.
.SS "void QwtWheel::layoutWheel (boolupdate = \fCtrue\fP)\fC [protected]\fP"
.PP
Recalculate the slider's geometry and layout based on. 
.SS "double QwtWheel::mass () const\fC [virtual]\fP"\fBReturns:\fP
.RS 4
mass 
.RE
.PP

.PP
Reimplemented from \fBQwtAbstractSlider\fP.
.SS "double QwtDoubleRange::maxValue () const\fC [inherited]\fP"
.PP
Returns the value of the second border of the range. maxValue returns the value which has been specified as the second parameter in \fBQwtDoubleRange::setRange\fP.
.PP
\fBSee also:\fP
.RS 4
\fBsetRange()\fP 
.RE
.PP

.SS "QSize QwtWheel::minimumSizeHint () const\fC [virtual]\fP"
.PP
Return a minimum size hint. \fBWarning:\fP
.RS 4
The return value is based on the wheel width. 
.RE
.PP

.SS "double QwtDoubleRange::minValue () const\fC [inherited]\fP"
.PP
Returns the value at the first border of the range. minValue returns the value which has been specified as the first parameter in \fBsetRange()\fP.
.PP
\fBSee also:\fP
.RS 4
\fBsetRange()\fP 
.RE
.PP

.SS "void QwtAbstractSlider::mouseMoveEvent (QMouseEvent *e)\fC [protected, virtual, inherited]\fP"Mouse Move Event handler 
.PP
\fBParameters:\fP
.RS 4
\fIe\fP Mouse event 
.RE
.PP

.SS "void QwtAbstractSlider::mousePressEvent (QMouseEvent *e)\fC [protected, virtual, inherited]\fP"Mouse press event handler 
.PP
\fBParameters:\fP
.RS 4
\fIe\fP Mouse event 
.RE
.PP

.SS "void QwtAbstractSlider::mouseReleaseEvent (QMouseEvent *e)\fC [protected, virtual, inherited]\fP"Mouse Release Event handler 
.PP
\fBParameters:\fP
.RS 4
\fIe\fP Mouse event 
.RE
.PP

.SS "Qt::Orientation QwtAbstractSlider::orientation () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
Orientation 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetOrientation()\fP 
.RE
.PP

.SS "int QwtDoubleRange::pageSize () const\fC [inherited]\fP"
.PP
Returns the page size in steps. 
.SS "void QwtWheel::paintEvent (QPaintEvent *e)\fC [protected, virtual]\fP"
.PP
Qt Paint Event. 
.SS "void QwtWheel::paletteChange (const QPalette &)\fC [protected, virtual]\fP"
.PP
Call update() when the palette changes. 
.SS "bool QwtDoubleRange::periodic () const\fC [inherited]\fP"
.PP
Returns true if the range is periodic. \fBSee also:\fP
.RS 4
\fBsetPeriodic()\fP 
.RE
.PP

.SS "double QwtDoubleRange::prevValue () const\fC [protected, inherited]\fP"
.PP
Returns the previous value. 
.SS "void QwtDoubleRange::rangeChange ()\fC [protected, virtual, inherited]\fP"
.PP
Notify a change of the range. This virtual function is called whenever the range changes. The default implementation does nothing. 
.PP
Reimplemented in \fBQwtCounter\fP, \fBQwtDial\fP, and \fBQwtSlider\fP.
.SS "void QwtWheel::resizeEvent (QResizeEvent *e)\fC [protected, virtual]\fP"
.PP
Qt Resize Event. 
.SS "void QwtWheel::setColorArray ()\fC [protected]\fP"
.PP
Set up the color array for the background pixmap. 
.SS "void QwtWheel::setInternalBorder (intw)"
.PP
Set the internal border width of the wheel. The internal border must not be smaller than 1 and is limited in dependence on the wheel's size. Values outside the allowed range will be clipped.
.PP
The internal border defaults to 2.
.PP
\fBParameters:\fP
.RS 4
\fIw\fP border width 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBinternalBorder()\fP 
.RE
.PP

.SS "void QwtWheel::setMass (doubleval)\fC [virtual]\fP"
.PP
Set the mass of the wheel. Assigning a mass turns the wheel into a flywheel. 
.PP
\fBParameters:\fP
.RS 4
\fIval\fP the wheel's mass 
.RE
.PP

.PP
Reimplemented from \fBQwtAbstractSlider\fP.
.SS "void QwtWheel::setOrientation (Qt::Orientationo)\fC [virtual]\fP"
.PP
Set the wheel's orientation. \fBParameters:\fP
.RS 4
\fIo\fP Orientation. Allowed values are Qt::Horizontal and Qt::Vertical. Defaults to Qt::Horizontal. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtAbstractSlider::orientation()\fP 
.RE
.PP

.PP
Reimplemented from \fBQwtAbstractSlider\fP.
.SS "void QwtDoubleRange::setPeriodic (booltf)\fC [inherited]\fP"
.PP
Make the range periodic. When the range is periodic, the value will be set to a point inside the interval such that
.PP
.PP
.nf
point = value + n * width .fi
.PP
.PP
if the user tries to set a new value which is outside the range. If the range is nonperiodic (the default), values outside the range will be clipped.
.PP
\fBParameters:\fP
.RS 4
\fItf\fP true for a periodic range 
.RE
.PP

.SS "void QwtAbstractSlider::setPosition (const QPoint &p)\fC [protected, virtual, inherited]\fP"Move the slider to a specified point, adjust the value and emit signals if necessary. 
.SS "void QwtDoubleRange::setRange (doublevmin, doublevmax, doublevstep = \fC0.0\fP, intpageSize = \fC1\fP)\fC [inherited]\fP"
.PP
Specify range and step size. \fBParameters:\fP
.RS 4
\fIvmin\fP lower boundary of the interval 
.br
\fIvmax\fP higher boundary of the interval 
.br
\fIvstep\fP step width 
.br
\fIpageSize\fP page size in steps 
.RE
.PP
\fBWarning:\fP
.RS 4
.PD 0
.IP "\(bu" 2
A change of the range changes the value if it lies outside the new range. The current value will *not* be adjusted to the new step raster. 
.IP "\(bu" 2
vmax < vmin is allowed. 
.IP "\(bu" 2
If the step size is left out or set to zero, it will be set to 1/100 of the interval length. 
.IP "\(bu" 2
If the step size has an absurd value, it will be corrected to a better one. 
.PP
.RE
.PP

.SS "void QwtAbstractSlider::setReadOnly (boolreadOnly)\fC [virtual, slot, inherited]\fP"En/Disable read only mode
.PP
In read only mode the slider can't be controlled by mouse or keyboard.
.PP
\fBParameters:\fP
.RS 4
\fIreadOnly\fP Enables in case of true 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBisReadOnly()\fP 
.RE
.PP

.SS "void QwtDoubleRange::setStep (doublevstep)\fC [inherited]\fP"
.PP
Change the step raster. \fBParameters:\fP
.RS 4
\fIvstep\fP new step width 
.RE
.PP
\fBWarning:\fP
.RS 4
The value will \fInot\fP be adjusted to the new step raster. 
.RE
.PP

.PP
Reimplemented in \fBQwtCounter\fP.
.SS "void QwtWheel::setTickCnt (intcnt)"
.PP
Adjust the number of grooves in the wheel's surface. The number of grooves is limited to 6 <= cnt <= 50. Values outside this range will be clipped. The default value is 10.
.PP
\fBParameters:\fP
.RS 4
\fIcnt\fP Number of grooves per 360 degrees 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBtickCnt()\fP 
.RE
.PP

.SS "void QwtWheel::setTotalAngle (doubleangle)"
.PP
Set the total angle which the wheel can be turned. One full turn of the wheel corresponds to an angle of 360 degrees. A total angle of n*360 degrees means that the wheel has to be turned n times around its axis to get from the minimum value to the maximum value.
.PP
The default setting of the total angle is 360 degrees.
.PP
\fBParameters:\fP
.RS 4
\fIangle\fP total angle in degrees 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBtotalAngle()\fP 
.RE
.PP

.SS "void QwtAbstractSlider::setTracking (boolenable)\fC [inherited]\fP"
.PP
Enables or disables tracking. If tracking is enabled, the slider emits a \fBvalueChanged()\fP signal whenever its value changes (the default behaviour). If tracking is disabled, the value changed() signal will only be emitted if:
.PD 0

.IP "\(bu" 2
the user releases the mouse button and the value has changed or 
.IP "\(bu" 2
at the end of automatic scrolling.
.PP
Tracking is enabled by default. 
.PP
\fBParameters:\fP
.RS 4
\fIenable\fP \fCtrue\fP (enable) or \fCfalse\fP (disable) tracking. 
.RE
.PP

.SS "void QwtAbstractSlider::setUpdateTime (intt)\fC [inherited]\fP"
.PP
Specify the update interval for automatic scrolling. \fBParameters:\fP
.RS 4
\fIt\fP update interval in milliseconds 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBgetScrollMode()\fP 
.RE
.PP

.SS "void QwtAbstractSlider::setValid (boolvalid)\fC [inline, inherited]\fP"\fBParameters:\fP
.RS 4
\fIvalid\fP true/false 
.RE
.PP
\fBSee also:\fP
.RS 4
QwtDblRange::isValid() 
.RE
.PP

.PP
Reimplemented from \fBQwtDoubleRange\fP.
.SS "void QwtAbstractSlider::setValue (doubleval)\fC [virtual, slot, inherited]\fP"
.PP
Move the slider to a specified value. This function can be used to move the slider to a value which is not an integer multiple of the step size. 
.PP
\fBParameters:\fP
.RS 4
\fIval\fP new value 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBfitValue()\fP 
.RE
.PP

.PP
Reimplemented from \fBQwtDoubleRange\fP.
.SS "void QwtWheel::setViewAngle (doubleangle)"
.PP
Specify the visible portion of the wheel. You may use this function for fine-tuning the appearance of the wheel. The default value is 175 degrees. The value is limited from 10 to 175 degrees.
.PP
\fBParameters:\fP
.RS 4
\fIangle\fP Visible angle in degrees 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBviewAngle()\fP, \fBsetTotalAngle()\fP 
.RE
.PP

.SS "void QwtWheel::setWheelWidth (intw)"
.PP
Set the width of the wheel. Corresponds to the wheel height for horizontal orientation, and the wheel width for vertical orientation. 
.PP
\fBParameters:\fP
.RS 4
\fIw\fP the wheel's width 
.RE
.PP

.SS "QSize QwtWheel::sizeHint () const\fC [virtual]\fP"\fBReturns:\fP
.RS 4
a size hint 
.RE
.PP

.SS "void QwtAbstractSlider::sliderMoved (doublevalue)\fC [signal, inherited]\fP"This signal is emitted when the user moves the slider with the mouse. 
.PP
\fBParameters:\fP
.RS 4
\fIvalue\fP new value 
.RE
.PP

.SS "void QwtAbstractSlider::sliderPressed ()\fC [signal, inherited]\fP"This signal is emitted when the user presses the movable part of the slider (start ScrMouse Mode). 
.SS "void QwtAbstractSlider::sliderReleased ()\fC [signal, inherited]\fP"This signal is emitted when the user releases the movable part of the slider. 
.SS "double QwtDoubleRange::step () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
the step size 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetStep()\fP, \fBsetRange()\fP 
.RE
.PP

.PP
Reimplemented in \fBQwtCounter\fP.
.SS "void QwtDoubleRange::stepChange ()\fC [protected, virtual, inherited]\fP"
.PP
Notify a change of the step size. This virtual function is called whenever the step size changes. The default implementation does nothing. 
.SS "void QwtAbstractSlider::stopMoving ()\fC [inherited]\fP"
.PP
Stop updating if automatic scrolling is active. 
.SS "int QwtWheel::tickCnt () const"\fBReturns:\fP
.RS 4
Number of grooves in the wheel's surface. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetTickCnt()\fP 
.RE
.PP

.SS "void QwtAbstractSlider::timerEvent (QTimerEvent *e)\fC [protected, virtual, inherited]\fP"Qt timer event 
.PP
\fBParameters:\fP
.RS 4
\fIe\fP Timer event 
.RE
.PP

.SS "double QwtWheel::totalAngle () const"\fBReturns:\fP
.RS 4
Total angle which the wheel can be turned. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetTotalAngle()\fP 
.RE
.PP

.SS "double QwtDoubleRange::value () const\fC [inherited]\fP"
.PP
Returns the current value. 
.PP
Reimplemented in \fBQwtCounter\fP.
.SS "void QwtWheel::valueChange ()\fC [protected, virtual]\fP"
.PP
Notify value change. 
.PP
Reimplemented from \fBQwtAbstractSlider\fP.
.SS "void QwtAbstractSlider::valueChanged (doublevalue)\fC [signal, inherited]\fP"
.PP
Notify a change of value. In the default setting (tracking enabled), this signal will be emitted every time the value changes ( see \fBsetTracking()\fP ). 
.PP
\fBParameters:\fP
.RS 4
\fIvalue\fP new value 
.RE
.PP

.SS "double QwtWheel::viewAngle () const"\fBReturns:\fP
.RS 4
Visible portion of the wheel 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetViewAngle()\fP, \fBtotalAngle()\fP 
.RE
.PP

.SS "void QwtAbstractSlider::wheelEvent (QWheelEvent *e)\fC [protected, virtual, inherited]\fP"Wheel Event handler 
.PP
\fBParameters:\fP
.RS 4
\fIe\fP Whell event 
.RE
.PP


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