.TH "QwtWheel" 3 "Fri Apr 15 2011" "Version 6.0.0" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtWheel \- 
.PP
The Wheel Widget.  

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

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.RI "void \fBsetTotalAngle\fP (double)"
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.RI "void \fBsetViewAngle\fP (double)"
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.SS "Public Member Functions"

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.RI "\fBQwtWheel\fP (QWidget *parent=NULL)"
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.RI "virtual \fB~QwtWheel\fP ()"
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.RI "virtual void \fBsetOrientation\fP (Qt::Orientation)"
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.RI "double \fBtotalAngle\fP () const "
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.RI "double \fBviewAngle\fP () const "
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.RI "void \fBsetTickCnt\fP (int)"
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.RI "int \fBtickCnt\fP () const "
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.RI "void \fBsetMass\fP (double)"
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.RI "double \fBmass\fP () const "
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.RI "void \fBsetWheelWidth\fP (int)"
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.RI "int \fBwheelWidth\fP () const "
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.RI "void \fBsetWheelBorderWidth\fP (int)"
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.RI "int \fBwheelBorderWidth\fP () const "
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.RI "void \fBsetBorderWidth\fP (int)"
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.RI "int \fBborderWidth\fP () const "
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.RI "QRect \fBwheelRect\fP () const "
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.RI "virtual QSize \fBsizeHint\fP () const "
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.RI "virtual QSize \fBminimumSizeHint\fP () const "
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.SS "Protected Member Functions"

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.RI "virtual void \fBpaintEvent\fP (QPaintEvent *)"
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.RI "virtual void \fBresizeEvent\fP (QResizeEvent *)"
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.RI "virtual void \fBdrawTicks\fP (QPainter *, const QRectF &)"
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.RI "virtual void \fBdrawWheelBackground\fP (QPainter *, const QRectF &)"
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.RI "virtual void \fBvalueChange\fP ()"
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.RI "virtual double \fBgetValue\fP (const QPoint &)"
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.RI "virtual void \fBgetScrollMode\fP (const QPoint &, \fBQwtAbstractSlider::ScrollMode\fP &, int &direction) const "
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.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
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.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtWheel::QwtWheel (QWidget *parent = \fCNULL\fP)\fC [explicit]\fP"
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Constructor. 
.SS "QwtWheel::~QwtWheel ()\fC [virtual]\fP"
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Destructor. 
.SH "Member Function Documentation"
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.SS "int QwtWheel::borderWidth () const"\fBReturns:\fP
.RS 4
Border width 
.RE
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\fBSee also:\fP
.RS 4
\fBsetBorderWidth()\fP 
.RE
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.SS "void QwtWheel::drawTicks (QPainter *painter, const QRectF &rect)\fC [protected, virtual]\fP"Draw the Wheel's ticks
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIrect\fP Rectangle for the wheel 
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.SS "void QwtWheel::drawWheelBackground (QPainter *painter, const QRectF &rect)\fC [protected, virtual]\fP"Draw the Wheel's background gradient
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIrect\fP Rectangle for the wheel 
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.SS "void QwtWheel::getScrollMode (const QPoint &p, \fBQwtAbstractSlider::ScrollMode\fP &scrollMode, int &direction) const\fC [protected, virtual]\fP"
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Determine the scrolling mode and direction corresponding to a specified point. \fBParameters:\fP
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\fIp\fP point 
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\fIscrollMode\fP scrolling mode 
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\fIdirection\fP direction 
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.PP
Implements \fBQwtAbstractSlider\fP.
.SS "double QwtWheel::getValue (const QPoint &p)\fC [protected, virtual]\fP"
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Determine the value corresponding to a specified point. 
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Implements \fBQwtAbstractSlider\fP.
.SS "double QwtWheel::mass () const\fC [virtual]\fP"\fBReturns:\fP
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mass 
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.PP
Reimplemented from \fBQwtAbstractSlider\fP.
.SS "QSize QwtWheel::minimumSizeHint () const\fC [virtual]\fP"
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Return a minimum size hint. \fBWarning:\fP
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The return value is based on the wheel width. 
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.SS "void QwtWheel::paintEvent (QPaintEvent *event)\fC [protected, virtual]\fP"
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Qt Paint Event. \fBParameters:\fP
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\fIevent\fP Paint event 
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.SS "void QwtWheel::resizeEvent (QResizeEvent *event)\fC [protected, virtual]\fP"
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Qt Resize Event. \fBParameters:\fP
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\fIevent\fP Resize event 
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.SS "void QwtWheel::setBorderWidth (intwidth)"
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Set the border width. The border defaults to 2.
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\fBParameters:\fP
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\fIwidth\fP Border width 
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\fBSee also:\fP
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\fBborderWidth()\fP 
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.SS "void QwtWheel::setMass (doublemass)\fC [virtual]\fP"
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Set the mass of the wheel. Assigning a mass turns the wheel into a flywheel. 
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\fBParameters:\fP
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\fImass\fP The wheel's mass 
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.PP
Reimplemented from \fBQwtAbstractSlider\fP.
.SS "void QwtWheel::setOrientation (Qt::Orientationo)\fC [virtual]\fP"
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Set the wheel's orientation. \fBParameters:\fP
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\fIo\fP Orientation. Allowed values are Qt::Horizontal and Qt::Vertical. Defaults to Qt::Horizontal. 
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\fBSee also:\fP
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\fBQwtAbstractSlider::orientation()\fP 
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.PP
Reimplemented from \fBQwtAbstractSlider\fP.
.SS "void QwtWheel::setTickCnt (intcnt)"
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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.
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\fBParameters:\fP
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\fIcnt\fP Number of grooves per 360 degrees 
.RE
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\fBSee also:\fP
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\fBtickCnt()\fP 
.RE
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.SS "void QwtWheel::setTotalAngle (doubleangle)\fC [slot]\fP"
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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.
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The default setting of the total angle is 360 degrees.
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\fBParameters:\fP
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\fIangle\fP total angle in degrees 
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\fBSee also:\fP
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\fBtotalAngle()\fP 
.RE
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.SS "void QwtWheel::setViewAngle (doubleangle)\fC [slot]\fP"
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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.
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\fBParameters:\fP
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\fIangle\fP Visible angle in degrees 
.RE
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\fBSee also:\fP
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\fBviewAngle()\fP, \fBsetTotalAngle()\fP 
.RE
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.SS "void QwtWheel::setWheelBorderWidth (intborderWidth)"
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Set the wheel border width of the wheel. The wheel 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.
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The wheel border defaults to 2.
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\fBParameters:\fP
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\fIborderWidth\fP Border width 
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\fBSee also:\fP
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internalBorder() 
.RE
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.SS "void QwtWheel::setWheelWidth (intwidth)"
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Set the width of the wheel. Corresponds to the wheel height for horizontal orientation, and the wheel width for vertical orientation.
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\fBParameters:\fP
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\fIwidth\fP the wheel's width 
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\fBSee also:\fP
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\fBwheelWidth()\fP 
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.SS "QSize QwtWheel::sizeHint () const\fC [virtual]\fP"\fBReturns:\fP
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a size hint 
.RE
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.SS "int QwtWheel::tickCnt () const"\fBReturns:\fP
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Number of grooves in the wheel's surface. 
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\fBSee also:\fP
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\fBsetTickCnt()\fP 
.RE
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.SS "double QwtWheel::totalAngle () const"\fBReturns:\fP
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Total angle which the wheel can be turned. 
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\fBSee also:\fP
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\fBsetTotalAngle()\fP 
.RE
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.SS "void QwtWheel::valueChange ()\fC [protected, virtual]\fP"
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Notify value change. 
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Reimplemented from \fBQwtAbstractSlider\fP.
.SS "double QwtWheel::viewAngle () const"\fBReturns:\fP
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Visible portion of the wheel 
.RE
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\fBSee also:\fP
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\fBsetViewAngle()\fP, \fBtotalAngle()\fP 
.RE
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.SS "int QwtWheel::wheelBorderWidth () const"\fBReturns:\fP
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Wheel border width 
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\fBSee also:\fP
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\fBsetWheelBorderWidth()\fP 
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.SS "QRect QwtWheel::wheelRect () const"\fBReturns:\fP
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Rectangle of the wheel without the outer border 
.RE
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.SS "int QwtWheel::wheelWidth () const"\fBReturns:\fP
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Width of the wheel 
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\fBSee also:\fP
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\fBsetWheelWidth()\fP 
.RE
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.SH "Author"
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