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QwtSlider Class Reference

The Slider Widget. More...

#include <qwt_slider.h>

Inheritance diagram for QwtSlider::

List of all members.

Public Types
enum	ScalePos {   None, Left, Right, Top,   Bottom }
enum	{ BgTrough = 0x1, BgSlot = 0x2 }
Public Methods
	QwtSlider (QWidget *parent, const char *name=0, Orientation orient=Horizontal, ScalePos scalePos=None, int bgStyle=BgTrough)
void	setThumbLength (int l)
void	setThumbWidth (int w)
void	setBorderWidth (int bw)
void	setMargins (int x, int y)
virtual QSize	sizeHint () const
virtual QSize	minimumSizeHint () const
virtual QSizePolicy	sizePolicy () const
Protected Methods
virtual double	getValue (const QPoint &p)
virtual void	getScrollMode (const QPoint &p, int &scrollMode, int &direction)
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	resizeEvent (QResizeEvent *e)
virtual void	paintEvent (QPaintEvent *e)
virtual void	valueChange ()
virtual void	rangeChange ()
virtual void	scaleChange ()
virtual void	fontChange (const QFont &oldFont)
void	layoutSlider (bool update=TRUE)
int	xyPosition (double v) const

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Detailed Description

The Slider Widget.

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

See also:

QwtSliderBase and QwtScaleIf for the descriptions of the inherited members.

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Member Enumeration Documentation

anonymous enum

Background style See also: QwtSlider::QwtSlider

enum QwtSlider::ScalePos

Position of the scale See also: QwtSlider::QwtSlider

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Constructor & Destructor Documentation

QwtSlider::QwtSlider (  QWidget *    parent, const char *    name = 0, Orientation    orient = Horizontal, ScalePos    scalePos = None, int    bgStyle = BgTrough )

Constructor. Parameters: parent  parent widget name  The Widget's name. Default = 0. Orient  Orientation of the slider. Can be Qt::Horizontal or Qt::Vertical. Defaults to Horizontal. scalePos  Position of the scale. Can be QwtSlider::None, QwtSlider::Left, QwtSlider::Right, QwtSlider::Top, or QwtSlider::Bottom. Defaults to QwtSlider::None. 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.

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Member Function Documentation

void QwtSlider::draw (  QPainter *    p, const QRect &    update_rect )  [protected]

redraw the slider.

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

Draw the slider into the specified rectangle.

void QwtSlider::drawThumb (  QPainter *    p, const QRect &    sliderRect, int    pos )  [protected, virtual]

Draw the thumb at a position.

void QwtSlider::fontChange (  const QFont &    f )  [protected, virtual]

Notify change in font.

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

Determine scrolling mode and direction. Parameters: p  point Reimplemented from QwtSliderBase.

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

Determine the value corresponding to a specified mouse location. Reimplemented from QwtSliderBase.

void QwtSlider::layoutSlider (  bool    update_geometry = TRUE )  [protected]

Recalculate the slider's geometry and layout based on.

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 *    e )  [protected, virtual]

Qt paint event.

void QwtSlider::rangeChange (    )  [protected, virtual]

Notify change of range. Reimplemented from QwtDblRange.

void QwtSlider::resizeEvent (  QResizeEvent *    e )  [protected, virtual]

Qt resize event.

void QwtSlider::scaleChange (    )  [protected, virtual]

Notify changed scale. Reimplemented from QwtScaleIf.

void QwtSlider::setBorderWidth (  int    bd )

Change the slider's border width. Parameters: bd  border width

void QwtSlider::setMargins (  int    xMargin, int    yMargin )

Set distances between the widget's border and internals. Parameters: xMargin  Horizontal margin yMargin  Vertical margin

void QwtSlider::setThumbLength (  int    thumbLength )

Set the slider's thumb length. Parameters: l  new length

void QwtSlider::setThumbWidth (  int    w )

Change the width of the thumb. Parameters: w  new width

QSize QwtSlider::sizeHint (    )  const [virtual]

Returns: QwtSlider::minimumSizeHint()

QSizePolicy QwtSlider::sizePolicy (    )  const [virtual]

Returns: Horizontal: MinimumExpanding/Fixed, Vertical: Fixed/MinimumExpanding

void QwtSlider::valueChange (    )  [protected, virtual]

Notify change of value. Reimplemented from QwtSliderBase.

int QwtSlider::xyPosition (  double    v )  const [protected]

Find the x/y position for a given value v.

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