|
Qwt User's Guide
6.1.3
|
A Compass Widget. More...
#include <qwt_compass.h>

Public Member Functions | |
| QwtCompass (QWidget *parent=NULL) | |
| Constructor. More... | |
| virtual | ~QwtCompass () |
| Destructor. | |
| void | setRose (QwtCompassRose *rose) |
| const QwtCompassRose * | rose () const |
| QwtCompassRose * | rose () |
Public Member Functions inherited from QwtDial | |
| QwtDial (QWidget *parent=NULL) | |
| Constructor. More... | |
| virtual | ~QwtDial () |
| Destructor. | |
| void | setFrameShadow (Shadow) |
| Shadow | frameShadow () const |
| void | setLineWidth (int) |
| int | lineWidth () const |
| void | setMode (Mode) |
| Change the mode of the dial. More... | |
| Mode | mode () const |
| void | setScaleArc (double min, double max) |
| void | setMinScaleArc (double min) |
| double | minScaleArc () const |
| void | setMaxScaleArc (double min) |
| double | maxScaleArc () const |
| virtual void | setOrigin (double) |
| Change the origin. More... | |
| double | origin () const |
| void | setNeedle (QwtDialNeedle *) |
| const QwtDialNeedle * | needle () const |
| QwtDialNeedle * | needle () |
| QRect | boundingRect () const |
| QRect | innerRect () const |
| virtual QRect | scaleInnerRect () const |
| virtual QSize | sizeHint () const |
| virtual QSize | minimumSizeHint () const |
| void | setScaleDraw (QwtRoundScaleDraw *) |
| QwtRoundScaleDraw * | scaleDraw () |
| const QwtRoundScaleDraw * | scaleDraw () const |
Public Member Functions inherited from QwtAbstractSlider | |
| QwtAbstractSlider (QWidget *parent=NULL) | |
| Constructor. More... | |
| virtual | ~QwtAbstractSlider () |
| Destructor. | |
| void | setValid (bool) |
| bool | isValid () const |
| double | value () const |
| Returns the current value. | |
| void | setWrapping (bool) |
| bool | wrapping () const |
| void | setTotalSteps (uint) |
| Set the number of steps. More... | |
| uint | totalSteps () const |
| void | setSingleSteps (uint) |
| Set the number of steps for a single increment. More... | |
| uint | singleSteps () const |
| void | setPageSteps (uint) |
| Set the number of steps for a page increment. More... | |
| uint | pageSteps () const |
| void | setStepAlignment (bool) |
| Enable step alignment. More... | |
| bool | stepAlignment () const |
| void | setTracking (bool) |
| Enables or disables tracking. More... | |
| bool | isTracking () const |
| void | setReadOnly (bool) |
| bool | isReadOnly () const |
| void | setInvertedControls (bool) |
| bool | invertedControls () const |
Public Member Functions inherited from QwtAbstractScale | |
| QwtAbstractScale (QWidget *parent=NULL) | |
| virtual | ~QwtAbstractScale () |
| Destructor. | |
| void | setScale (double lowerBound, double upperBound) |
| Specify a scale. More... | |
| void | setScale (const QwtInterval &) |
| Specify a scale. More... | |
| void | setScale (const QwtScaleDiv &) |
| Specify a scale. More... | |
| const QwtScaleDiv & | scaleDiv () const |
| void | setLowerBound (double value) |
| double | lowerBound () const |
| void | setUpperBound (double value) |
| double | upperBound () const |
| void | setScaleStepSize (double stepSize) |
| Set the step size used for calculating a scale division. More... | |
| double | scaleStepSize () const |
| void | setScaleMaxMajor (int ticks) |
| Set the maximum number of major tick intervals. More... | |
| int | scaleMaxMinor () const |
| void | setScaleMaxMinor (int ticks) |
| Set the maximum number of minor tick intervals. More... | |
| int | scaleMaxMajor () const |
| void | setScaleEngine (QwtScaleEngine *) |
| Set a scale engine. More... | |
| const QwtScaleEngine * | scaleEngine () const |
| QwtScaleEngine * | scaleEngine () |
| int | transform (double) const |
| double | invTransform (int) const |
| bool | isInverted () const |
| double | minimum () const |
| double | maximum () const |
| const QwtScaleMap & | scaleMap () const |
Protected Member Functions | |
| virtual void | drawRose (QPainter *, const QPointF ¢er, double radius, double north, QPalette::ColorGroup) const |
| virtual void | drawScaleContents (QPainter *, const QPointF ¢er, double radius) const |
| virtual void | keyPressEvent (QKeyEvent *) |
Protected Member Functions inherited from QwtDial | |
| virtual void | wheelEvent (QWheelEvent *) |
| virtual void | paintEvent (QPaintEvent *) |
| virtual void | changeEvent (QEvent *) |
| virtual void | drawFrame (QPainter *p) |
| virtual void | drawContents (QPainter *) const |
| Draw the contents inside the frame. More... | |
| virtual void | drawFocusIndicator (QPainter *) const |
| void | invalidateCache () |
| virtual void | drawScale (QPainter *, const QPointF ¢er, double radius) const |
| virtual void | drawNeedle (QPainter *, const QPointF &, double radius, double direction, QPalette::ColorGroup) const |
| virtual double | scrolledTo (const QPoint &) const |
| Determine the value for a new position of the slider handle. More... | |
| virtual bool | isScrollPosition (const QPoint &) const |
| Determine what to do when the user presses a mouse button. More... | |
| virtual void | sliderChange () |
| Calling update() | |
| virtual void | scaleChange () |
Protected Member Functions inherited from QwtAbstractSlider | |
| virtual void | mousePressEvent (QMouseEvent *) |
| virtual void | mouseReleaseEvent (QMouseEvent *) |
| virtual void | mouseMoveEvent (QMouseEvent *) |
| void | incrementValue (int numSteps) |
| double | incrementedValue (double value, int stepCount) const |
Protected Member Functions inherited from QwtAbstractScale | |
| void | rescale (double lowerBound, double upperBound, double stepSize) |
| void | setAbstractScaleDraw (QwtAbstractScaleDraw *) |
| Set a scale draw. More... | |
| const QwtAbstractScaleDraw * | abstractScaleDraw () const |
| QwtAbstractScaleDraw * | abstractScaleDraw () |
Additional Inherited Members | |
Public Types inherited from QwtDial | |
| enum | Shadow { Plain = QFrame::Plain, Raised = QFrame::Raised, Sunken = QFrame::Sunken } |
| Frame shadow. More... | |
| enum | Mode { RotateNeedle, RotateScale } |
| Mode controlling whether the needle or the scale is rotating. More... | |
Public Slots inherited from QwtAbstractSlider | |
| void | setValue (double val) |
Signals inherited from QwtAbstractSlider | |
| void | valueChanged (double value) |
| Notify a change of value. More... | |
| void | sliderPressed () |
| void | sliderReleased () |
| void | sliderMoved (double value) |
A Compass Widget.
QwtCompass is a widget to display and enter directions. It consists of a scale, an optional needle and rose.
|
explicit |
Constructor.
| 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.
|
protectedvirtual |
Draw the compass rose
| 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 |
|
protectedvirtual |
Draw the contents of the scale
| painter | Painter |
| center | Center of the content circle |
| radius | Radius of the content circle |
Reimplemented from QwtDial.
|
protectedvirtual |
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.
Reimplemented from QwtAbstractSlider.
| const QwtCompassRose * QwtCompass::rose | ( | ) | const |
| QwtCompassRose * QwtCompass::rose | ( | ) |
| void QwtCompass::setRose | ( | QwtCompassRose * | rose | ) |
Set a rose for the compass
| rose | Compass rose |