QwtSlider(3)

NAME 💖

Bestie, this is QwtSlider(3) — the Slider Widget. That's the name, periodt.

SYNOPSIS ✨

Okay so first, include this header, no cap:

#include <qwt_slider.h>

Inherits QwtAbstractSlider, and QwtAbstractScale. Slay.

Public Types 🎀

These enums are iconic:

enum BGSTYLE { BgTrough =  0x1, BgSlot =  0x2, BgBoth =  BgTrough |
    BgSlot }
enum ScalePos { NoScale, LeftScale, RightScale, TopScale, BottomScale }

Public Member Functions 💅

Here's the main character energy functions, bestie:

• QwtSlider (QWidget *parent, Qt::Orientation=Qt::Horizontal, ScalePos=NoScale, BGSTYLE bgStyle=BgTrough)
• BGSTYLE bgStyle () const
• int borderWidth () const
• virtual QSize minimumSizeHint () const
• const QwtScaleDraw * scaleDraw () const
• ScalePos scalePosition () const
• void setBgStyle (BGSTYLE)
• void setBorderWidth (int bw)
• void setMargins (int x, int y)
• virtual void setOrientation (Qt::Orientation)
• void setScaleDraw (QwtScaleDraw *)
• void setScalePosition (ScalePos s)
• void setThumbLength (int l)
• void setThumbWidth (int w)
• virtual QSize sizeHint () const
• int thumbLength () const
• int thumbWidth () const

Protected Member Functions 🔒

These are the protected ones, lowkey for the internals:

• void draw (QPainter *p, const QRect &update_rect)
• virtual void drawSlider (QPainter *p, const QRect &r)
• virtual void drawThumb (QPainter *p, const QRect &, int pos)
• virtual void fontChange (const QFont &oldFont)
• virtual void getScrollMode (const QPoint &p, int &scrollMode, int &direction)
• virtual double getValue (const QPoint &p)
• void layoutSlider (bool update=true)
• virtual void paintEvent (QPaintEvent *e)
• virtual void rangeChange ()
• virtual void resizeEvent (QResizeEvent *e)
• virtual void scaleChange ()
• QwtScaleDraw * scaleDraw ()
• virtual void valueChange ()
• int xyPosition (double v) const

Additional Inherited Members 🌈

There are more inherited members, bestie — they're chilling in the parent classes. No cap. Go check QwtAbstractSlider and QwtAbstractScale for the deets.

Detailed Description 🦋

The Slider Widget. It's giving slider realness.

QwtSlider is a slider widget which operates on an interval of type double. QwtSlider supports different layouts as well as a scale. Obsessed.

See also: QwtAbstractSlider and QwtAbstractScale for the descriptions of the inherited members.

Member Enumeration Documentation 🌸

enum QwtSlider::BGSTYLE

Background style. The vibe check for your background.

See also: QwtSlider()

enum QwtSlider::ScalePos

Scale position. QwtSlider tries to enforce valid combinations of its orientation and scale position:

• Qt::Horizonal combines with NoScale, TopScale and BottomScale
• Qt::Vertical combines with NoScale, LeftScale and RightScale

See also: QwtSlider()

Constructor & Destructor Documentation 🎀

QwtSlider::QwtSlider (QWidget *parent, Qt::Orientationorientation = Qt::Horizontal, ScalePosscalePos = NoScale, BGSTYLEbgStyle = BgTrough) [explicit]

Constructor. Parameters:

• parent — parent widget
• orientation — Orientation of the slider. Can be Qt::Horizontal or Qt::Vertical. Defaults to Qt::Horizontal.
• scalePos — Position of the scale. Defaults to QwtSlider::NoScale.
• bgStyle — Background style. QwtSlider::BgTrough draws the slider button in a trough, QwtSlider::BgSlot draws a slot underneath the button. An or-combination of both may also be used. The default is QwtSlider::BgTrough.

QwtSlider enforces valid combinations of its orientation and scale position. If the combination is invalid, the scale position will be set to NoScale. Valid combinations are:

• Qt::Horizonal with NoScale, TopScale, or BottomScale;
• Qt::Vertical with NoScale, LeftScale, or RightScale.

Member Function Documentation 💖

QwtSlider::BGSTYLE QwtSlider::bgStyle () const

Returns: the background style. That's the vibe of your background, bestie.

int QwtSlider::borderWidth () const

Returns: the border width.

void QwtSlider::drawSlider (QPainter *painter, const QRect &r) [protected], [virtual]

Draw the slider into the specified rectangle.

Parameters:

• painter — Painter
• r — Rectangle

void QwtSlider::drawThumb (QPainter *painter, const QRect &sliderRect, intpos) [protected], [virtual]

Draw the thumb at a position

Parameters:

• painter — Painter
• sliderRect — Bounding rectangle of the slider
• pos — Position of the slider thumb

void QwtSlider::getScrollMode (const QPoint &p, int &scrollMode, int &direction) [protected], [virtual]

Determine scrolling mode and direction.

Parameters:

• p — point
• scrollMode — Scrolling mode
• direction — Direction

Implements QwtAbstractSlider.

double QwtSlider::getValue (const QPoint &pos) [protected], [virtual]

Determine the value corresponding to a specified mouse location.

Parameters:

• pos — Mouse position

Implements QwtAbstractSlider.

void QwtSlider::layoutSlider (boolupdate_geometry = true) [protected]

Recalculate the slider's geometry and layout based on the current rect and fonts.

Parameters:

• update_geometry — notify the layout system and call update to redraw the scale

QSize QwtSlider::minimumSizeHint () const [virtual]

Return a minimum size hint.

Warning: The return value of QwtSlider::minimumSizeHint() depends on the font and the scale.

void QwtSlider::paintEvent (QPaintEvent *event) [protected], [virtual]

Qt paint event

Parameters:

• event — Paint event

const QwtScaleDraw * QwtSlider::scaleDraw () const

Returns: the scale draw of the slider

See also: setScaleDraw()

QwtScaleDraw * QwtSlider::scaleDraw () [protected]

Returns: the scale draw of the slider

See also: setScaleDraw()

void QwtSlider::setBgStyle (BGSTYLEst)

Set the background style.

void QwtSlider::setBorderWidth (intbd)

Change the slider's border width.

Parameters:

• bd — border width

void QwtSlider::setMargins (intxMargin, intyMargin)

Set distances between the widget's border and internals.

Parameters:

• xMargin — Horizontal margin
• yMargin — Vertical margin

void QwtSlider::setOrientation (Qt::Orientationo) [virtual]

Set the orientation.

Parameters:

• o — Orientation. Allowed values are Qt::Horizontal and Qt::Vertical.

If the new orientation and the old scale position are an invalid combination, the scale position will be set to QwtSlider::NoScale.

See also: QwtAbstractSlider::orientation()

Reimplemented from QwtAbstractSlider.

void QwtSlider::setScaleDraw (QwtScaleDraw *scaleDraw)

Set a scale draw. For changing the labels of the scales, it is necessary to derive from QwtScaleDraw and overload QwtScaleDraw::label().

Parameters:

• scaleDraw — ScaleDraw object, that has to be created with new and will be deleted in ~QwtSlider or the next call of setScaleDraw().

void QwtSlider::setScalePosition (ScalePoss)

Change the scale position (and slider orientation).

Parameters:

• s — Position of the scale.

A valid combination of scale position and orientation is enforced:

• if the new scale position is Left or Right, the scale orientation will become Qt::Vertical;
• if the new scale position is Bottom or Top the scale orientation will become Qt::Horizontal;
• if the new scale position is QwtSlider::NoScale, the scale orientation will not change.

void QwtSlider::setThumbLength (intthumbLength)

Set the slider's thumb length.

Parameters:

• thumbLength — new length

void QwtSlider::setThumbWidth (intw)

Change the width of the thumb.

Parameters:

• w — new width

QSize QwtSlider::sizeHint () const [virtual]

Returns: QwtSlider::minimumSizeHint()

int QwtSlider::thumbLength () const

Returns: the thumb length.

int QwtSlider::thumbWidth () const

Returns: the thumb width.

int QwtSlider::xyPosition (doublevalue) const [protected]

Find the x/y position for a given value v

Parameters:

• value — Value

Author 👑

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

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Okay bestie, that's the whole page. Version 5.2.3, dated Tue Nov 20 2012, from the Qwt User's Guide. Footer vibes only. 💅✨