qwtdialneedle(3) [debian man page]
QwtDialNeedle(3) Qwt User's Guide QwtDialNeedle(3) NAME
QwtDialNeedle - Base class for needles that can be used in a QwtDial. SYNOPSIS
#include <qwt_dial_needle.h> Inherited by QwtCompassMagnetNeedle, QwtCompassWindArrow, and QwtDialSimpleNeedle. Public Member Functions virtual void draw (QPainter *painter, const QPoint ¢er, int length, double direction, QPalette::ColorGroup cg=QPalette::Active) const =0 const QPalette & palette () const QwtDialNeedle () virtual void setPalette (const QPalette &) virtual ~QwtDialNeedle () Static Protected Member Functions static void drawKnob (QPainter *, const QPoint &pos, int width, const QBrush &, bool sunken) Detailed Description Base class for needles that can be used in a QwtDial. QwtDialNeedle is a pointer that indicates a value by pointing to a specific direction. Qwt is missing a set of good looking needles. Contributions are very welcome. See also: QwtDial, QwtCompass Constructor &; Destructor Documentation QwtDialNeedle::QwtDialNeedle () Constructor. QwtDialNeedle::~QwtDialNeedle () [virtual] Destructor. Member Function Documentation virtual void QwtDialNeedle::draw (QPainter *painter, const QPoint ¢er, intlength, doubledirection, QPalette::ColorGroupcg = QPalette::Active) const [pure virtual] Draw the needle Parameters: painter Painter center Center of the dial, start position for the needle length Length of the needle direction Direction of the needle, in degrees counter clockwise cg Color group, used for painting Implemented in QwtDialSimpleNeedle, QwtCompassMagnetNeedle, and QwtCompassWindArrow. void QwtDialNeedle::drawKnob (QPainter *painter, const QPoint &pos, intwidth, const QBrush &brush, boolsunken) [static, protected] Draw the knob. const QPalette & QwtDialNeedle::palette () const Returns: the palette of the needle. void QwtDialNeedle::setPalette (const QPalette &palette) [virtual] Sets the palette for the needle. Parameters: palette New Palette Author Generated automatically by Doxygen for Qwt User's Guide from the source code. Version 5.2.2 Mon Aug 1 2011 QwtDialNeedle(3)
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QwtAnalogClock(3) Qwt User's Guide QwtAnalogClock(3) NAME
QwtAnalogClock - An analog clock. SYNOPSIS
#include <qwt_analog_clock.h> Inherits QwtDial. Public Types enum Direction { Clockwise, CounterClockwise } enum Hand { SecondHand, MinuteHand, HourHand, NHands } enum Mode { RotateNeedle, RotateScale } enum ScaleOptions { ScaleBackbone = 1, ScaleTicks = 2, ScaleLabel = 4 } enum ScrollMode { ScrNone, ScrMouse, ScrTimer, ScrDirect, ScrPage } enum Shadow { Plain = QFrame::Plain, Raised = QFrame::Raised, Sunken = QFrame::Sunken } Public Slots virtual void fitValue (double val) virtual void incValue (int steps) void setCurrentTime () virtual void setReadOnly (bool) void setTime (const QTime &=QTime::currentTime()) virtual void setValue (double val) Signals void sliderMoved (double value) void sliderPressed () void sliderReleased () void valueChanged (double value) Public Member Functions QRect boundingRect () const QRect contentsRect () const Direction direction () const Shadow frameShadow () const QwtDialNeedle * hand (Hand) const QwtDialNeedle * hand (Hand) const bool hasVisibleBackground () const virtual void incPages (int) bool isReadOnly () const bool isValid () const int lineWidth () const virtual double mass () const double maxScaleArc () const double maxValue () const virtual QSize minimumSizeHint () const double minScaleArc () const double minValue () const Mode mode () const const QwtDialNeedle * needle () const QwtDialNeedle * needle () Qt::Orientation orientation () const double origin () const int pageSize () const bool periodic () const QwtAnalogClock (QWidget *parent=NULL) virtual QRect scaleContentsRect () const QwtDialScaleDraw * scaleDraw () const QwtDialScaleDraw * scaleDraw () const void setDirection (Direction) void setFrameShadow (Shadow) virtual void setHand (Hand, QwtDialNeedle *) void setLineWidth (int) virtual void setMass (double val) void setMode (Mode) virtual void setOrientation (Qt::Orientation o) virtual void setOrigin (double) void setPeriodic (bool tf) void setRange (double vmin, double vmax, double vstep=0.0, int pagesize=1) virtual void setScale (int maxMajIntv, int maxMinIntv, double step=0.0) void setScaleArc (double min, double max) virtual void setScaleDraw (QwtDialScaleDraw *) void setScaleOptions (int) void setScaleTicks (int minLen, int medLen, int majLen, int penWidth=1) void setStep (double) void setTracking (bool enable) void setUpdateTime (int t) void setValid (bool valid) virtual void setWrapping (bool) void showBackground (bool) virtual QSize sizeHint () const double step () const void stopMoving () double value () const bool wrapping () const virtual ~QwtAnalogClock () Protected Member Functions virtual void drawContents (QPainter *) const virtual void drawFocusIndicator (QPainter *) const virtual void drawFrame (QPainter *p) virtual void drawHand (QPainter *, Hand, const QPoint &, int radius, double direction, QPalette::ColorGroup) const virtual void drawNeedle (QPainter *, const QPoint &, int radius, double direction, QPalette::ColorGroup) const virtual void drawScale (QPainter *, const QPoint ¢er, int radius, double origin, double arcMin, double arcMax) const virtual void drawScaleContents (QPainter *painter, const QPoint ¢er, int radius) const double exactPrevValue () const double exactValue () const virtual void getScrollMode (const QPoint &, int &scrollMode, int &direction) virtual double getValue (const QPoint &) virtual void keyPressEvent (QKeyEvent *) virtual void mouseMoveEvent (QMouseEvent *e) double mouseOffset () const virtual void mousePressEvent (QMouseEvent *e) virtual void mouseReleaseEvent (QMouseEvent *e) virtual void paintEvent (QPaintEvent *) double prevValue () const virtual void rangeChange () virtual void resizeEvent (QResizeEvent *) virtual QwtText scaleLabel (double) const int scrollMode () const void setMouseOffset (double) virtual void setPosition (const QPoint &) virtual void stepChange () virtual void timerEvent (QTimerEvent *e) virtual void updateMask () void updateScale () virtual void valueChange () virtual void wheelEvent (QWheelEvent *e) 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 QwtDial::Direction [inherited] Direction of the dial enum QwtAnalogClock::Hand Hand type See also: setHand(), hand() enum QwtDial::Mode [inherited] In case of RotateNeedle the needle is rotating, in case of RotateScale, the needle points to origin() and the scale is rotating. enum QwtDial::ScaleOptions [inherited] see QwtDial::setScaleOptions enum QwtAbstractSlider::ScrollMode [inherited] Scroll mode See also: getScrollMode() enum QwtDial::Shadow [inherited] Frame shadow. Unfortunately it is not possible to use QFrame::Shadow as a property of a widget that is not derived from QFrame. The following enum is made for the designer only. It is safe to use QFrame::Shadow instead. Constructor &; Destructor Documentation QwtAnalogClock::QwtAnalogClock (QWidget *parent = NULL) [explicit] Constructor Parameters: parent Parent widget QwtAnalogClock::~QwtAnalogClock () [virtual] Destructor. Member Function Documentation QRect QwtDial::boundingRect () const [inherited] Returns: bounding rect of the dial including the frame See also: setLineWidth(), scaleContentsRect(), contentsRect() QRect QwtDial::contentsRect () const [inherited] Returns: bounding rect of the circle inside the frame See also: setLineWidth(), scaleContentsRect(), boundingRect() QwtDial::Direction QwtDial::direction () const [inherited] Returns: Direction of the dial The default direction of a dial is QwtDial::Clockwise See also: setDirection() void QwtDial::drawContents (QPainter *painter) const [protected, virtual, inherited] Draw the contents inside the frame. QColorGroup::Background is the background color outside of the frame. QColorGroup::Base is the background color inside the frame. QColorGroup::Foreground is the background color inside the scale. Parameters: painter Painter See also: boundingRect(), contentsRect(), scaleContentsRect(), QWidget::setPalette() void QwtDial::drawFocusIndicator (QPainter *painter) const [protected, virtual, inherited] Draw a dotted round circle, if !isReadOnly() Parameters: painter Painter void QwtDial::drawFrame (QPainter *painter) [protected, virtual, inherited] Draw the frame around the dial Parameters: painter Painter See also: lineWidth(), frameShadow() void QwtAnalogClock::drawHand (QPainter *painter, Handhd, const QPoint ¢er, intradius, 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 QPoint ¢er, intradius, doubledirection, QPalette::ColorGroupcg) 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 direction Dummy, not used. cg ColorGroup See also: drawHand() Reimplemented from QwtDial. void QwtDial::drawScale (QPainter *painter, const QPoint ¢er, intradius, doubleorigin, doubleminArc, doublemaxArc) const [protected, virtual, inherited] Draw the scale Parameters: painter Painter center Center of the dial radius Radius of the scale origin Origin of the scale minArc Minimum of the arc maxArc Minimum of the arc See also: QwtAbstractScaleDraw::setAngleRange() void QwtDial::drawScaleContents (QPainter *painter, const QPoint ¢er, intradius) const [protected, virtual, inherited] Draw the contents inside the scale Paints nothing. Parameters: painter Painter center Center of the contents circle radius Radius of the contents circle Reimplemented in QwtCompass. double QwtDoubleRange::exactPrevValue () const [protected, inherited] Returns the exact previous value. double QwtDoubleRange::exactValue () const [protected, inherited] Returns the exact value. The exact value is the value which QwtDoubleRange::value would return if the value were not adjusted to the step raster. It differs from the current value only if QwtDoubleRange::fitValue or QwtDoubleRange::incValue have been used before. This function is intended for internal use in derived classes. void QwtAbstractSlider::fitValue (doublevalue) [virtual, slot, inherited] Set the slider's value to the nearest integer multiple of the step size. Parameters: value Value See also: setValue(), incValue() Reimplemented from QwtDoubleRange. QwtDial::Shadow QwtDial::frameShadow () const [inherited] Returns: Frame shadow /sa setFrameShadow(), lineWidth(), QFrame::frameShadow void QwtDial::getScrollMode (const QPoint &pos, int &scrollMode, int &direction) [protected, virtual, inherited] See QwtAbstractSlider::getScrollMode() Parameters: pos point where the mouse was pressed Return values: scrollMode The scrolling mode direction direction: 1, 0, or -1. See also: QwtAbstractSlider::getScrollMode() Implements QwtAbstractSlider. double QwtDial::getValue (const QPoint &pos) [protected, virtual, inherited] Find the value for a given position Parameters: pos Position Returns: Value Implements QwtAbstractSlider. 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() bool QwtDial::hasVisibleBackground () const [inherited] true when the area outside of the frame is visible See also: showBackground(), setMask() void QwtDoubleRange::incPages (intnPages) [virtual, inherited] Increment the value by a specified number of pages. Parameters: nPages Number of pages to increment. A negative number decrements the value. Warning: The Page size is specified in the constructor. void QwtAbstractSlider::incValue (intsteps) [virtual, slot, inherited] Increment the value by a specified number of steps. Parameters: steps number of steps See also: setValue() Reimplemented from QwtDoubleRange. bool QwtAbstractSlider::isReadOnly () const [inherited] In read only mode the slider can't be controlled by mouse or keyboard. Returns: true if read only See also: setReadOnly() bool QwtAbstractSlider::isValid () const [inline, inherited] See also: QwtDblRange::isValid() Reimplemented from QwtDoubleRange. void QwtDial::keyPressEvent (QKeyEvent *event) [protected, virtual, inherited] Handles key events o Key_Down, KeyLeft Decrement by 1 o Key_Prior Decrement by pageSize() o Key_Home Set the value to minValue() o Key_Up, KeyRight Increment by 1 o Key_Next Increment by pageSize() o Key_End Set the value to maxValue() Parameters: event Key event See also: isReadOnly() Reimplemented from QwtAbstractSlider. Reimplemented in QwtCompass. int QwtDial::lineWidth () const [inherited] Returns: Line width of the frame See also: setLineWidth(), frameShadow(), lineWidth() double QwtAbstractSlider::mass () const [virtual, inherited] Returns: mass See also: setMass() Reimplemented in QwtWheel. double QwtDial::maxScaleArc () const [inherited] Returns: Upper limit of the scale arc double QwtDoubleRange::maxValue () const [inherited] Returns the value of the second border of the range. maxValue returns the value which has been specified as the second parameter in QwtDoubleRange::setRange. See also: setRange() QSize QwtDial::minimumSizeHint () const [virtual, inherited] Return a minimum size hint. Warning: The return value of QwtDial::minimumSizeHint() depends on the font and the scale. double QwtDial::minScaleArc () const [inherited] Returns: Lower limit of the scale arc double QwtDoubleRange::minValue () const [inherited] Returns the value at the first border of the range. minValue returns the value which has been specified as the first parameter in setRange(). See also: setRange() QwtDial::Mode QwtDial::mode () const [inherited] Returns: mode of the dial. The value of the dial is indicated by the difference between the origin and the direction of the needle. In case of QwtDial::RotateNeedle the scale arc is fixed to the origin() and the needle is rotating, in case of QwtDial::RotateScale, the needle points to origin() and the scale is rotating. The default mode is QwtDial::RotateNeedle. See also: setMode(), origin(), setScaleArc(), value() void QwtAbstractSlider::mouseMoveEvent (QMouseEvent *e) [protected, virtual, inherited] Mouse Move Event handler Parameters: e Mouse event void QwtAbstractSlider::mousePressEvent (QMouseEvent *e) [protected, virtual, inherited] Mouse press event handler Parameters: e Mouse event void QwtAbstractSlider::mouseReleaseEvent (QMouseEvent *e) [protected, virtual, inherited] Mouse Release Event handler Parameters: e Mouse event const QwtDialNeedle * QwtDial::needle () const [inherited] Returns: needle See also: setNeedle() QwtDialNeedle * QwtDial::needle () [inherited] Returns: needle See also: setNeedle() Qt::Orientation QwtAbstractSlider::orientation () const [inherited] Returns: Orientation See also: setOrientation() double QwtDial::origin () const [inherited] The origin is the angle where scale and needle is relative to. Returns: Origin of the dial See also: setOrigin() int QwtDoubleRange::pageSize () const [inherited] Returns the page size in steps. void QwtDial::paintEvent (QPaintEvent *e) [protected, virtual, inherited] Paint the dial Parameters: e Paint event bool QwtDoubleRange::periodic () const [inherited] Returns true if the range is periodic. See also: setPeriodic() double QwtDoubleRange::prevValue () const [protected, inherited] Returns the previous value. void QwtDial::rangeChange () [protected, virtual, inherited] QwtDoubleRange update hook. Reimplemented from QwtDoubleRange. void QwtDial::resizeEvent (QResizeEvent *e) [protected, virtual, inherited] Resize the dial widget Parameters: e Resize event QRect QwtDial::scaleContentsRect () const [virtual, inherited] Returns: rect inside the scale See also: setLineWidth(), boundingRect(), contentsRect() QwtDialScaleDraw * QwtDial::scaleDraw () [inherited] Return the scale draw. const QwtDialScaleDraw * QwtDial::scaleDraw () const [inherited] Return the scale draw. 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 QwtDial::setDirection (Directiondirection) [inherited] Set the direction of the dial (clockwise/counterclockwise) Direction direction See also: direction() void QwtDial::setFrameShadow (Shadowshadow) [inherited] Sets the frame shadow value from the frame style. Parameters: shadow Frame shadow See also: setLineWidth(), QFrame::setFrameShadow() void QwtAnalogClock::setHand (Handhand, QwtDialNeedle *needle) [virtual] Set a clockhand Parameters: hand Specifies the type of hand needle Hand See also: hand() void QwtDial::setLineWidth (intlineWidth) [inherited] Sets the line width Parameters: lineWidth Line width See also: setFrameShadow() void QwtAbstractSlider::setMass (doubleval) [virtual, inherited] Set the slider's mass for flywheel effect. If the slider's mass is greater then 0, it will continue to move after the mouse button has been released. Its speed decreases with time at a rate depending on the slider's mass. A large mass means that it will continue to move for a long time. Derived widgets may overload this function to make it public. Parameters: val New mass in kg See also: mass() Reimplemented in QwtWheel. void QwtDial::setMode (Modemode) [inherited] Change the mode of the meter. Parameters: mode New mode The value of the meter is indicated by the difference between north of the scale and the direction of the needle. In case of QwtDial::RotateNeedle north is pointing to the origin() and the needle is rotating, in case of QwtDial::RotateScale, the needle points to origin() and the scale is rotating. The default mode is QwtDial::RotateNeedle. See also: mode(), setValue(), setOrigin() void QwtAbstractSlider::setOrientation (Qt::Orientationo) [virtual, inherited] Set the orientation. Parameters: o Orientation. Allowed values are Qt::Horizontal and Qt::Vertical. Reimplemented in QwtSlider, and QwtWheel. void QwtDial::setOrigin (doubleorigin) [virtual, inherited] Change the origin. The origin is the angle where scale and needle is relative to. Parameters: origin New origin See also: origin() void QwtDoubleRange::setPeriodic (booltf) [inherited] Make the range periodic. When the range is periodic, the value will be set to a point inside the interval such that point = value + n * width .fi 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. Parameters: tf true for a periodic range void QwtAbstractSlider::setPosition (const QPoint &p) [protected, virtual, inherited] Move the slider to a specified point, adjust the value and emit signals if necessary. void QwtDoubleRange::setRange (doublevmin, doublevmax, doublevstep = 0.0, intpageSize = 1) [inherited] Specify range and step size. Parameters: vmin lower boundary of the interval vmax higher boundary of the interval vstep step width pageSize page size in steps Warning: o 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. o vmax < vmin is allowed. o If the step size is left out or set to zero, it will be set to 1/100 of the interval length. o If the step size has an absurd value, it will be corrected to a better one. void QwtAbstractSlider::setReadOnly (boolreadOnly) [virtual, slot, inherited] En/Disable read only mode In read only mode the slider can't be controlled by mouse or keyboard. Parameters: readOnly Enables in case of true See also: isReadOnly() void QwtDial::setScale (intmaxMajIntv, intmaxMinIntv, doublestep = 0.0) [virtual, inherited] Change the intervals of the scale See also: QwtAbstractScaleDraw::setScale() void QwtDial::setScaleArc (doubleminArc, doublemaxArc) [inherited] Change the arc of the scale Parameters: minArc Lower limit maxArc Upper limit void QwtDial::setScaleDraw (QwtDialScaleDraw *scaleDraw) [virtual, inherited] Set an individual scale draw Parameters: scaleDraw Scale draw Warning: The previous scale draw is deleted void QwtDial::setScaleOptions (intoptions) [inherited] A wrapper method for accessing the scale draw. o options == 0 No visible scale: setScaleDraw(NULL) o options & ScaleBackbone En/disable the backbone of the scale. o options & ScaleTicks En/disable the ticks of the scale. o options & ScaleLabel En/disable scale labels See also: QwtAbstractScaleDraw::enableComponent() void QwtDial::setScaleTicks (intminLen, intmedLen, intmajLen, intpenWidth = 1) [inherited] Assign length and width of the ticks Parameters: minLen Length of the minor ticks medLen Length of the medium ticks majLen Length of the major ticks penWidth Width of the pen for all ticks See also: QwtAbstractScaleDraw::setTickLength(), QwtDialScaleDraw::setPenWidth() void QwtDoubleRange::setStep (doublevstep) [inherited] Change the step raster. Parameters: vstep new step width Warning: The value will not be adjusted to the new step raster. Reimplemented in QwtCounter. void QwtAnalogClock::setTime (const QTime &time = QTime::currentTime()) [slot] Set a time Parameters: time Time to display void QwtAbstractSlider::setTracking (boolenable) [inherited] Enables or disables tracking. If tracking is enabled, the slider emits a valueChanged() signal whenever its value changes (the default behaviour). If tracking is disabled, the value changed() signal will only be emitted if: o the user releases the mouse button and the value has changed or o at the end of automatic scrolling. Tracking is enabled by default. Parameters: enable true (enable) or false (disable) tracking. void QwtAbstractSlider::setUpdateTime (intt) [inherited] Specify the update interval for automatic scrolling. Parameters: t update interval in milliseconds See also: getScrollMode() void QwtAbstractSlider::setValid (boolvalid) [inline, inherited] Parameters: valid true/false See also: QwtDblRange::isValid() Reimplemented from QwtDoubleRange. void QwtAbstractSlider::setValue (doubleval) [virtual, slot, inherited] 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. Parameters: val new value See also: fitValue() Reimplemented from QwtDoubleRange. void QwtDial::setWrapping (boolwrapping) [virtual, inherited] Sets whether it is possible to step the value from the highest value to the lowest value and vice versa to on. Parameters: wrapping en/disables wrapping See also: wrapping(), QwtDoubleRange::periodic() Note: The meaning of wrapping is like the wrapping property of QSpinBox, but not like it is used in QDial. void QwtDial::showBackground (boolshow) [inherited] Show/Hide the area outside of the frame Parameters: show Show if true, hide if false See also: hasVisibleBackground(), setMask() Warning: When QwtDial is a toplevel widget the window border might disappear too. QSize QwtDial::sizeHint () const [virtual, inherited] Returns: Size hint void QwtAbstractSlider::sliderMoved (doublevalue) [signal, inherited] This signal is emitted when the user moves the slider with the mouse. Parameters: value new value void QwtAbstractSlider::sliderPressed () [signal, inherited] This signal is emitted when the user presses the movable part of the slider (start ScrMouse Mode). void QwtAbstractSlider::sliderReleased () [signal, inherited] This signal is emitted when the user releases the movable part of the slider. double QwtDoubleRange::step () const [inherited] Returns: the step size See also: setStep(), setRange() Reimplemented in QwtCounter. void QwtDoubleRange::stepChange () [protected, virtual, inherited] Notify a change of the step size. This virtual function is called whenever the step size changes. The default implementation does nothing. void QwtAbstractSlider::stopMoving () [inherited] Stop updating if automatic scrolling is active. void QwtAbstractSlider::timerEvent (QTimerEvent *e) [protected, virtual, inherited] Qt timer event Parameters: e Timer event void QwtDial::updateMask () [protected, virtual, inherited] Update the mask of the dial. In case of 'hasVisibleBackground() == false', the backgound is transparent by a mask. See also: showBackground(), hasVisibleBackground() void QwtDial::updateScale () [protected, inherited] Update the scale with the current attributes See also: setScale() double QwtDoubleRange::value () const [inherited] Returns the current value. Reimplemented in QwtCounter. void QwtDial::valueChange () [protected, virtual, inherited] QwtDoubleRange update hook. Reimplemented from QwtAbstractSlider. void QwtAbstractSlider::valueChanged (doublevalue) [signal, inherited] Notify a change of value. In the default setting (tracking enabled), this signal will be emitted every time the value changes ( see setTracking() ). Parameters: value new value void QwtAbstractSlider::wheelEvent (QWheelEvent *e) [protected, virtual, inherited] Wheel Event handler Parameters: e Whell event bool QwtDial::wrapping () const [inherited] wrapping() holds whether it is possible to step the value from the highest value to the lowest value and vice versa. See also: setWrapping(), QwtDoubleRange::setPeriodic() Note: The meaning of wrapping is like the wrapping property of QSpinBox, but not like it is used in QDial. Author Generated automatically by Doxygen for Qwt User's Guide from the source code. Version 5.2.2 Mon Aug 1 2011 QwtAnalogClock(3)