#include <qwt_scale_widget.h>

Signals
void	scaleDivChanged ()

Public Member Functions
	QwtScaleWidget (QWidget *parent=NULL)
	QwtScaleWidget (QwtScaleDraw::Alignment, QWidget *parent=NULL)
virtual	~QwtScaleWidget ()
QwtScaleDraw::Alignment	alignment () const
QwtDoubleInterval	colorBarInterval () const
QRect	colorBarRect (const QRect &) const
int	colorBarWidth () const
const QwtColorMap &	colorMap () const
int	dimForLength (int length, const QFont &scaleFont) const
void	drawColorBar (QPainter *painter, const QRect &rect) const
void	drawTitle (QPainter *painter, QwtScaleDraw::Alignment, const QRect &rect) const
int	endBorderDist () const
void	getBorderDistHint (int &start, int &end) const
void	getMinBorderDist (int &start, int &end) const
bool	isColorBarEnabled () const
int	margin () const
virtual QSize	minimumSizeHint () const
int	penWidth () const
const QwtScaleDraw *	scaleDraw () const
QwtScaleDraw *	scaleDraw ()
void	setAlignment (QwtScaleDraw::Alignment)
void	setBorderDist (int start, int end)
void	setColorBarEnabled (bool)
void	setColorBarWidth (int)
void	setColorMap (const QwtDoubleInterval &, const QwtColorMap &)
void	setLabelAlignment (Qt::Alignment)
void	setLabelRotation (double rotation)
void	setMargin (int)
void	setMinBorderDist (int start, int end)
void	setPenWidth (int)
void	setScaleDiv (QwtScaleTransformation *, const QwtScaleDiv &sd)
void	setScaleDraw (QwtScaleDraw *)
void	setSpacing (int td)
void	setTitle (const QString &title)
void	setTitle (const QwtText &title)
virtual QSize	sizeHint () const
int	spacing () const
int	startBorderDist () const
QwtText	title () const
int	titleHeightForWidth (int width) const

Protected Member Functions
void	draw (QPainter *p) const
void	layoutScale (bool update=true)
virtual void	paintEvent (QPaintEvent *e)
virtual void	resizeEvent (QResizeEvent *e)
void	scaleChange ()

Detailed Description

A Widget which contains a scale.

This Widget can be used to decorate composite widgets with a scale.

Constructor & Destructor Documentation

QwtScaleWidget::QwtScaleWidget ( QWidget * parent = NULL )

explicit

Create a scale with the position QwtScaleWidget::Left.

Parameters:

parent Parent widget

QwtScaleWidget::QwtScaleWidget	(	QwtScaleDraw::Alignment	align,
		QWidget *	parent = `NULL`
	)

explicit

Constructor.

Parameters:

align	Alignment.
parent	Parent widget

Member Function Documentation

QwtScaleDraw::Alignment QwtScaleWidget::alignment ( ) const

Returns:: position

See also:: setPosition()

int QwtScaleWidget::dimForLength	(	int	length,
		const QFont &	scaleFont
	)		const

Find the minimum dimension for a given length. dim is the height, length the width seen in direction of the title.

Parameters:

length	width for horizontal, height for vertical scales
scaleFont	Font of the scale

Returns:: height for horizontal, width for vertical scales

void QwtScaleWidget::drawTitle	(	QPainter *	painter,
		QwtScaleDraw::Alignment	align,
		const QRect &	rect
	)		const

Rotate and paint a title according to its position into a given rectangle.

Parameters:

painter	Painter
align	Alignment
rect	Bounding rectangle

int QwtScaleWidget::endBorderDist ( ) const

Returns:: end border distance

See also:: setBorderDist()

void QwtScaleWidget::getBorderDistHint	(	int &	start,
		int &	end
	)		const

Calculate a hint for the border distances.

This member function calculates the distance of the scale's endpoints from the widget borders which is required for the mark labels to fit into the widget. The maximum of this distance an the minimum border distance is returned.

Warning:

The minimum border distance depends on the font.

See also:: setMinBorderDist(), getMinBorderDist(), setBorderDist()

void QwtScaleWidget::getMinBorderDist	(	int &	start,
		int &	end
	)		const

Get the minimum value for the distances of the scale's endpoints from the widget borders.

See also:: setMinBorderDist(), getBorderDistHint()

int QwtScaleWidget::margin ( ) const

Returns:: margin

See also:: setMargin()

QSize QwtScaleWidget::minimumSizeHint ( ) const

virtual

Returns:: a minimum size hint

int QwtScaleWidget::penWidth ( ) const

Returns:: Scale pen width

See also:: setPenWidth()

void QwtScaleWidget::scaleChange ( )

protected

Notify a change of the scale.

This virtual function can be overloaded by derived classes. The default implementation updates the geometry and repaints the widget.

const QwtScaleDraw * QwtScaleWidget::scaleDraw ( ) const

scaleDraw of this scale

See also:: setScaleDraw(), QwtScaleDraw::setScaleDraw()

QwtScaleDraw * QwtScaleWidget::scaleDraw ( )

scaleDraw of this scale

See also:: QwtScaleDraw::setScaleDraw()

void QwtScaleWidget::setAlignment ( QwtScaleDraw::Alignment alignment )

Change the alignment

Parameters:

alignment New alignment

See also:: alignment()

void QwtScaleWidget::setBorderDist	(	int	dist1,
		int	dist2
	)

Specify distances of the scale's endpoints from the widget's borders. The actual borders will never be less than minimum border distance.

Parameters:

dist1	Left or top Distance
dist2	Right or bottom distance

See also:: borderDist()

void QwtScaleWidget::setLabelAlignment ( Qt::Alignment alignment )

Change the alignment for the labels.

See also:: QwtScaleDraw::setLabelAlignment(), setLabelRotation()

void QwtScaleWidget::setLabelRotation ( double rotation )

Change the rotation for the labels. See QwtScaleDraw::setLabelRotation().

Parameters:

rotation Rotation

See also:: QwtScaleDraw::setLabelRotation(), setLabelFlags()

void QwtScaleWidget::setMargin ( int margin )

Specify the margin to the colorBar/base line.

Parameters:

margin Margin

See also:: margin()

void QwtScaleWidget::setMinBorderDist	(	int	start,
		int	end
	)

Set a minimum value for the distances of the scale's endpoints from the widget borders. This is useful to avoid that the scales are "jumping", when the tick labels or their positions change often.

Parameters:

start	Minimum for the start border
end	Minimum for the end border

See also:: getMinBorderDist(), getBorderDistHint()

void QwtScaleWidget::setPenWidth ( int width )

Specify the width of the scale pen.

Parameters:

width Pen width

See also:: penWidth()

void QwtScaleWidget::setScaleDiv	(	QwtScaleTransformation *	transformation,
		const QwtScaleDiv &	scaleDiv
	)

Assign a scale division.

The scale division determines where to set the tick marks.

Parameters:

transformation	Transformation, needed to translate between scale and pixal values
scaleDiv	Scale Division

See also:: For more information about scale divisions, see QwtScaleDiv.

void QwtScaleWidget::setScaleDraw ( QwtScaleDraw * sd )

Set a scale draw sd has to be created with new and will be deleted in ~QwtScaleWidget() or the next call of setScaleDraw().

Parameters:

sd	ScaleDraw object

See also:: scaleDraw()

void QwtScaleWidget::setSpacing ( int spacing )

Specify the distance between color bar, scale and title.

Parameters:

spacing Spacing

See also:: spacing()

void QwtScaleWidget::setTitle ( const QString & title )

Give title new text contents

Parameters:

title New title

See also:: title(), setTitle(const QwtText &);

void QwtScaleWidget::setTitle ( const QwtText & title )

Give title new text contents

Parameters:

title New title

See also:: title()

Warning:: The title flags are interpreted in direction of the label, AlignTop, AlignBottom can't be set as the title will always be aligned to the scale.

QSize QwtScaleWidget::sizeHint ( ) const

virtual