#include <qwt_scale_widget.h>

Public Types
enum	LayoutFlag { TitleInverted = 1 }
typedef QFlags< LayoutFlag >	LayoutFlags
Signals
void	scaleDivChanged ()
Public Member Functions
QwtScaleDraw::Alignment	alignment () const
QwtInterval	colorBarInterval () const
QRectF	colorBarRect (const QRectF &) const
int	colorBarWidth () const
const QwtColorMap *	colorMap () const
int	dimForLength (int length, const QFont &scaleFont) const
void	drawColorBar (QPainter *painter, const QRectF &) const
void	drawTitle (QPainter *painter, QwtScaleDraw::Alignment, const QRectF &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
	QwtScaleWidget (QWidget *parent=NULL)
	QwtScaleWidget (QwtScaleDraw::Alignment, QWidget *parent=NULL)
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 QwtInterval &, QwtColorMap *)
void	setLabelAlignment (Qt::Alignment)
void	setLabelRotation (double rotation)
void	setLayoutFlag (LayoutFlag, bool on)
void	setMargin (int)
void	setMinBorderDist (int start, int end)
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
bool	testLayoutFlag (LayoutFlag) const
QwtText	title () const
int	titleHeightForWidth (int width) const
virtual	~QwtScaleWidget ()
Protected Member Functions
void	draw (QPainter *p) const
void	layoutScale (bool update=true)
virtual void	paintEvent (QPaintEvent *)
virtual void	resizeEvent (QResizeEvent *)
void	scaleChange ()

Detailed Description

A Widget which contains a scale.

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

Member Typedef Documentation

typedef QFlags<LayoutFlag> QwtScaleWidget::LayoutFlags

Layout flags of the title.

Member Enumeration Documentation

enum QwtScaleWidget::LayoutFlag

Layout flags of the title.

Enumerator:

TitleInverted

The title of vertical scales is painted from top to bottom. Otherwise it is painted from bottom to top.

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

QwtScaleWidget::~QwtScaleWidget ( ) [virtual]

Destructor.

Member Function Documentation

QwtScaleDraw::Alignment QwtScaleWidget::alignment ( ) const

Returns:: position

See also:: setPosition()

QwtInterval QwtScaleWidget::colorBarInterval ( ) const

Returns:: Value interval for the color bar

See also:: setColorMap(), colorMap()

QRectF QwtScaleWidget::colorBarRect ( const QRectF & rect ) const

Calculate the the rectangle for the color bar

Parameters:

rect	Bounding rectangle for all components of the scale

Returns:: Rectabgle for the color bar

int QwtScaleWidget::colorBarWidth ( ) const

Returns:: Width of the color bar

See also:: setColorBarEnabled(), setColorBarEnabled()

const QwtColorMap * QwtScaleWidget::colorMap ( ) const

Returns:: Color map

See also:: setColorMap(), colorBarInterval()

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::draw ( QPainter * p ) const [protected]

draw the scale

void QwtScaleWidget::drawColorBar	(	QPainter *	painter,
		const QRectF &	rect
	)		const

Draw the color bar of the scale widget

Parameters:

painter	Painter
rect	Bounding rectangle for the color bar

See also:: setColorBarEnabled()

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

bool QwtScaleWidget::isColorBarEnabled ( ) const

Returns:: true, when the color bar is enabled

See also:: setColorBarEnabled(), setColorBarWidth()

void QwtScaleWidget::layoutScale ( bool update_geometry = true ) [protected]

Recalculate the scale'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

int QwtScaleWidget::margin ( ) const

Returns:: margin

See also:: setMargin()

QSize QwtScaleWidget::minimumSizeHint ( ) const [virtual]

Returns:: a minimum size hint

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

paintEvent

void QwtScaleWidget::resizeEvent ( QResizeEvent * event ) [protected, virtual]

Event handler for resize event

Parameters:

event Resize event

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.

void QwtScaleWidget::scaleDivChanged ( ) [signal]

Signal emitted, whenever the scale divison changes.

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::setColorBarEnabled ( bool on )

En/disable a color bar associated to the scale

See also:: isColorBarEnabled(), setColorBarWidth()

void QwtScaleWidget::setColorBarWidth ( int width )

Set the width of the color bar

Parameters:

width Width

See also:: colorBarWidth(), setColorBarEnabled()

void QwtScaleWidget::setColorMap	(	const QwtInterval &	interval,
		QwtColorMap *	colorMap
	)

Set the color map and value interval, that are used for displaying the color bar.

Parameters:

interval	Value interval
colorMap	Color map

See also:: colorMap(), colorBarInterval()

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::setLayoutFlag	(	LayoutFlag	flag,
		bool	on
	)

Toggle an layout flag

Parameters:

flag	Layout flag
on	true/false

See also:: testLayoutFlag(), LayoutFlag

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::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]

Returns:: a size hint

int QwtScaleWidget::spacing ( ) const

Returns:: distance between scale and title

See also:: setMargin()

int QwtScaleWidget::startBorderDist ( ) const

Returns:: start border distance

See also:: setBorderDist()

bool QwtScaleWidget::testLayoutFlag ( LayoutFlag flag ) const

Test a layout flag

Parameters:

flag	Layout flag

Returns:: true/false

See also:: setLayoutFlag(), LayoutFlag

QwtText QwtScaleWidget::title ( ) const

Returns:: title

See also:: setTitle()

int QwtScaleWidget::titleHeightForWidth ( int width ) const

Find the height of the title for a given width.

Parameters:

width Width

Returns:: height Height

Public Types

Signals

Public Member Functions

Protected Member Functions

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation