conflicting packages
QwtCompass(3) | Qwt User's Guide | QwtCompass(3) |
NAME¶
QwtCompass - A Compass Widget.SYNOPSIS¶
#include <qwt_compass.h> Inherits QwtDial.Public Member Functions¶
QwtCompass (QWidget *parent=NULL)
Protected Member Functions¶
virtual QwtText scaleLabel (double value) const
Detailed Description¶
A Compass Widget.The examples/dials example shows how to use
QwtCompass.
Constructor & Destructor Documentation¶
QwtCompass::QwtCompass (QWidget *parent = NULL) [explicit]¶
Constructor. Parameters:parent Parent widget
Create a compass widget with a scale, no needle and no rose. The default origin
is 270.0 with no valid value. It accepts mouse and keyboard inputs and has no
step size. The default mode is QwtDial::RotateNeedle.
QwtCompass::~QwtCompass () [virtual]¶
Destructor.Member Function Documentation¶
void QwtCompass::drawRose (QPainter *painter, const QPointF ¢er, doubleradius, doublenorth, QPalette::ColorGroupcg) const [protected, virtual] Draw the compass rose¶
Parameters:painter Painter
center Center of the compass
radius of the circle, where to paint the rose
north Direction pointing north, in degrees counter clockwise
cg Color group
void QwtCompass::drawScaleContents (QPainter *painter, const QPointF ¢er, doubleradius) const [protected, virtual] Draw the contents of the scale¶
Parameters:painter Painter
center Center of the content circle
radius Radius of the content circle
void QwtCompass::keyPressEvent (QKeyEvent *kev) [protected, virtual] Handles key events¶
Beside the keys described in QwtDial::keyPressEvent numbers from 1-9 (without 5) set the direction according to their position on the num pad. See also:isReadOnly()
QMap< double, QString > & QwtCompass::labelMap () Returns:¶
map, mapping values to labels
See also:
setLabelMap()
const QMap< double, QString > & QwtCompass::labelMap () const Returns:¶
map, mapping values to labels
See also:
setLabelMap()
const QwtCompassRose * QwtCompass::rose () const Returns:¶
rose
See also:
setRose()
QwtCompassRose * QwtCompass::rose () Returns:¶
rose
See also:
setRose()
QwtText QwtCompass::scaleLabel (doublevalue) const [protected, virtual] Map a value to a corresponding label¶
Parameters:value Value that will be mapped
Returns:
Label, or QString::null
label() looks in a map for a corresponding label for value or return an null
text.
See also:
labelMap(), setLabelMap()
void QwtCompass::setLabelMap (const QMap< double, QString > &map)¶
Set a map, mapping values to labels. Parameters:map value to label map
The values of the major ticks are found by looking into this map. The default
map consists of the labels N, NE, E, SE, S, SW, W, NW.
Warning:
The map will have no effect for values that
are no major tick values. Major ticks can be changed by
QwtScaleDraw::setScale
See also:
labelMap(), scaleDraw(),
setScale()
void QwtCompass::setRose (QwtCompassRose *rose) Set a rose for the compass¶
Parameters:rose Compass rose
Warning:
The rose will be deleted, when a different
rose is set or in ~QwtCompass
See also:
rose()
Author¶
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