QwtPolarPicker provides selections on a plot canvas. More...

#include <qwt_polar_picker.h>

Inheritance diagram for QwtPolarPicker:

Classes
class	PrivateData

Signals
void	appended (const QwtPointPolar &pos)

void	moved (const QwtPointPolar &pos)

void	selected (const QwtPointPolar &pos)

void	selected (const QVector< QwtPointPolar > &points)

Signals inherited from QwtPicker
void	activated (bool on)

void	appended (const QPoint &pos)

void	changed (const QPolygon &selection)

void	moved (const QPoint &pos)

void	removed (const QPoint &pos)

void	selected (const QPolygon &polygon)

Public Member Functions
QwtPolarCanvas *	canvas ()

const QwtPolarCanvas *	canvas () const

virtual QRect	pickRect () const

QwtPolarPlot *	plot ()

const QwtPolarPlot *	plot () const

	QwtPolarPicker (QwtPolarCanvas *)
	Create a polar plot picker. More...

	QwtPolarPicker (RubberBand rubberBand, DisplayMode trackerMode, QwtPolarCanvas *)

virtual	~QwtPolarPicker ()
	Destructor. More...

Public Member Functions inherited from QwtPicker
virtual void	drawRubberBand (QPainter *) const

virtual void	drawTracker (QPainter *) const

virtual bool	eventFilter (QObject , QEvent ) QWT_OVERRIDE
	Event filter. More...

bool	isActive () const

bool	isEnabled () const

QWidget *	parentWidget ()
	Return the parent widget, where the selection happens. More...

const QWidget *	parentWidget () const
	Return the parent widget, where the selection happens. More...

	QwtPicker (QWidget *parent)

	QwtPicker (RubberBand rubberBand, DisplayMode trackerMode, QWidget *)

ResizeMode	resizeMode () const

RubberBand	rubberBand () const

virtual QRegion	rubberBandMask () const

QPen	rubberBandPen () const

QPolygon	selection () const

void	setResizeMode (ResizeMode)
	Set the resize mode. More...

void	setRubberBand (RubberBand)

void	setRubberBandPen (const QPen &)

void	setStateMachine (QwtPickerMachine *)

void	setTrackerFont (const QFont &)

void	setTrackerMode (DisplayMode)
	Set the display mode of the tracker. More...

void	setTrackerPen (const QPen &)

const QwtPickerMachine *	stateMachine () const

QwtPickerMachine *	stateMachine ()

QFont	trackerFont () const

virtual QRegion	trackerMask () const

DisplayMode	trackerMode () const

QPen	trackerPen () const

QPoint	trackerPosition () const

virtual QRect	trackerRect (const QFont &) const

virtual	~QwtPicker ()
	Destructor. More...

Public Member Functions inherited from QwtEventPattern
void	initKeyPattern ()

void	initMousePattern (int numButtons)

bool	keyMatch (KeyPatternCode, const QKeyEvent *) const
	Compare a key event with an event pattern. More...

const QVector< KeyPattern > &	keyPattern () const

QVector< KeyPattern > &	keyPattern ()

bool	mouseMatch (MousePatternCode, const QMouseEvent *) const
	Compare a mouse event with an event pattern. More...

const QVector< MousePattern > &	mousePattern () const

QVector< MousePattern > &	mousePattern ()

	QwtEventPattern ()

void	setKeyPattern (KeyPatternCode, int key, Qt::KeyboardModifiers modifiers=Qt::NoModifier)

void	setKeyPattern (const QVector< KeyPattern > &)
	Change the key event patterns. More...

void	setMousePattern (MousePatternCode, Qt::MouseButton button, Qt::KeyboardModifiers=Qt::NoModifier)

void	setMousePattern (const QVector< MousePattern > &)
	Change the mouse event patterns. More...

virtual	~QwtEventPattern ()
	Destructor. More...

Protected Member Functions
virtual void	append (const QPoint &) QWT_OVERRIDE

virtual bool	end (bool ok=true) QWT_OVERRIDE

QwtPointPolar	invTransform (const QPoint &) const

virtual void	move (const QPoint &) QWT_OVERRIDE

virtual QwtText	trackerText (const QPoint &) const QWT_OVERRIDE

virtual QwtText	trackerTextPolar (const QwtPointPolar &) const
	Translate a position into a position string. More...

Protected Member Functions inherited from QwtPicker
virtual bool	accept (QPolygon &) const
	Validate and fix up the selection. More...

virtual QPolygon	adjustedPoints (const QPolygon &) const
	Map the pickedPoints() into a selection() More...

virtual void	begin ()

const QPolygon &	pickedPoints () const

virtual void	remove ()

virtual void	reset ()

const QwtWidgetOverlay *	rubberBandOverlay () const

virtual void	stretchSelection (const QSize &oldSize, const QSize &newSize)

const QwtWidgetOverlay *	trackerOverlay () const

virtual void	transition (const QEvent *)

virtual void	updateDisplay ()
	Update the state of rubber band and tracker label. More...

virtual void	widgetEnterEvent (QEvent *)

virtual void	widgetKeyPressEvent (QKeyEvent *)

virtual void	widgetKeyReleaseEvent (QKeyEvent *)

virtual void	widgetLeaveEvent (QEvent *)

virtual void	widgetMouseDoubleClickEvent (QMouseEvent *)

virtual void	widgetMouseMoveEvent (QMouseEvent *)

virtual void	widgetMousePressEvent (QMouseEvent *)

virtual void	widgetMouseReleaseEvent (QMouseEvent *)

virtual void	widgetWheelEvent (QWheelEvent *)

Protected Member Functions inherited from QwtEventPattern
virtual bool	keyMatch (const KeyPattern &, const QKeyEvent *) const
	Compare a key event with an event pattern. More...

virtual bool	mouseMatch (const MousePattern &, const QMouseEvent *) const
	Compare a mouse event with an event pattern. More...

Private Member Functions
virtual QPainterPath	pickArea () const QWT_OVERRIDE

Private Attributes
PrivateData *	d_data

Additional Inherited Members
Public Types inherited from QwtPicker
enum	DisplayMode { AlwaysOff, AlwaysOn, ActiveOnly }
	Display mode. More...

enum	ResizeMode { Stretch, KeepSize }

enum	RubberBand { NoRubberBand = 0, HLineRubberBand, VLineRubberBand, CrossRubberBand, RectRubberBand, EllipseRubberBand, PolygonRubberBand, UserRubberBand = 100 }

Public Types inherited from QwtEventPattern
enum	KeyPatternCode { KeySelect1, KeySelect2, KeyAbort, KeyLeft, KeyRight, KeyUp, KeyDown, KeyRedo, KeyUndo, KeyHome, KeyPatternCount }
	Symbolic keyboard input codes. More...

enum	MousePatternCode { MouseSelect1, MouseSelect2, MouseSelect3, MouseSelect4, MouseSelect5, MouseSelect6, MousePatternCount }
	Symbolic mouse input codes. More...

Public Slots inherited from QwtPicker
void	setEnabled (bool)
	En/disable the picker. More...

Properties inherited from QwtPicker
bool	isEnabled

ResizeMode	resizeMode

RubberBand	rubberBand

QPen	rubberBandPen

QFont	trackerFont

DisplayMode	trackerMode

QPen	trackerPen

Detailed Description

QwtPolarPicker provides selections on a plot canvas.

QwtPolarPicker is a QwtPicker tailored for selections on a polar plot canvas.

Definition at line 28 of file qwt_polar_picker.h.

Constructor & Destructor Documentation

QwtPolarPicker::QwtPolarPicker ( QwtPolarCanvas * canvas )

explicit

Create a polar plot picker.

Parameters

canvas Plot canvas to observe, also the parent object

Definition at line 29 of file qwt_polar_picker.cpp.

QwtPolarPicker::~QwtPolarPicker ( )

virtual

Destructor.

Definition at line 56 of file qwt_polar_picker.cpp.

QwtPolarPicker::QwtPolarPicker	(	RubberBand	rubberBand,
		DisplayMode	trackerMode,
		QwtPolarCanvas *	canvas
	)

explicit

Create a plot picker

Parameters

rubberBand	Rubberband style
trackerMode	Tracker mode
canvas	Plot canvas to observe, also the parent object

See also: QwtPicker, QwtPicker::setSelectionFlags(), QwtPicker::setRubberBand(), QwtPicker::setTrackerMode; QwtPolarPlot::autoReplot(), QwtPolarPlot::replot(), scaleRect()

Definition at line 47 of file qwt_polar_picker.cpp.

Member Function Documentation

void QwtPolarPicker::append ( const QPoint & pos )

protectedvirtual

Append a point to the selection and update rubberband and tracker.

Parameters

pos	Additional point

See also: isActive, begin(), end(), move(), appended()

Note: The appended(const QPoint &), appended(const QDoublePoint &) signals are emitted.

Reimplemented from QwtPicker.

Definition at line 134 of file qwt_polar_picker.cpp.

void QwtPolarPicker::appended ( const QwtPointPolar & pos )

signal

A signal emitted when a point has been appended to the selection

Parameters

pos	Position of the appended point.

See also: append(). moved()

QwtPolarCanvas * QwtPolarPicker::canvas ( )

Returns: Observed plot canvas

Definition at line 62 of file qwt_polar_picker.cpp.

const QwtPolarCanvas * QwtPolarPicker::canvas ( ) const

Returns: Observed plot canvas

Definition at line 68 of file qwt_polar_picker.cpp.

bool QwtPolarPicker::end ( bool ok = true )

protectedvirtual

Close a selection setting the state to inactive.

Parameters

ok	If true, complete the selection and emit selected signals otherwise discard the selection.

Returns: true if the selection is accepted, false otherwise

Reimplemented from QwtPicker.

Definition at line 163 of file qwt_polar_picker.cpp.

QwtPointPolar QwtPolarPicker::invTransform ( const QPoint & pos ) const

protected

Translate a point from widget into plot coordinates

Parameters

pos	Point in widget coordinates of the plot canvas

Returns: Point in plot coordinates

See also: transform(), canvas()

Definition at line 214 of file qwt_polar_picker.cpp.

void QwtPolarPicker::move ( const QPoint & pos )

protectedvirtual

Move the last point of the selection

Parameters

pos	New position

See also: isActive, begin(), end(), append()

Note: The moved(const QPoint &), moved(const QDoublePoint &) signals are emitted.

Reimplemented from QwtPicker.

Definition at line 149 of file qwt_polar_picker.cpp.

void QwtPolarPicker::moved ( const QwtPointPolar & pos )

signal

A signal emitted whenever the last appended point of the selection has been moved.

Parameters

pos	Position of the moved last point of the selection.

See also: move(), appended()

QPainterPath QwtPolarPicker::pickArea ( ) const

privatevirtual

Find the area of the observed widget, where selection might happen.

Returns: parentWidget()->contentsRect()

Reimplemented from QwtPicker.

Definition at line 235 of file qwt_polar_picker.cpp.

QRect QwtPolarPicker::pickRect ( ) const

virtual

Returns: Bounding rectangle of the region, where picking is supported.

Definition at line 227 of file qwt_polar_picker.cpp.

QwtPolarPlot * QwtPolarPicker::plot ( )

Returns: Plot widget, containing the observed plot canvas

Definition at line 74 of file qwt_polar_picker.cpp.

const QwtPolarPlot * QwtPolarPicker::plot ( ) const

Returns: Plot widget, containing the observed plot canvas

Definition at line 84 of file qwt_polar_picker.cpp.

void QwtPolarPicker::selected ( const QwtPointPolar & pos )

signal

A signal emitted in case of selectionFlags() & PointSelection.

Parameters

pos	Selected point

void QwtPolarPicker::selected ( const QVector< QwtPointPolar > & points )

signal

A signal emitting the selected points, at the end of a selection.

Parameters

points Selected points

QwtText QwtPolarPicker::trackerText ( const QPoint & pos ) const

protectedvirtual

Translate a pixel position into a position string

Parameters

pos	Position in pixel coordinates

Returns: Position string

Reimplemented from QwtPicker.

Definition at line 99 of file qwt_polar_picker.cpp.

QwtText QwtPolarPicker::trackerTextPolar ( const QwtPointPolar & pos ) const

protectedvirtual

Translate a position into a position string.

In case of HLineRubberBand the label is the value of the y position, in case of VLineRubberBand the value of the x position. Otherwise the label contains x and y position separated by a ',' .

The format for the double to string conversion is "%.4f".

Parameters

pos Position

Returns: Position string

Definition at line 117 of file qwt_polar_picker.cpp.

Member Data Documentation

PrivateData* QwtPolarPicker::d_data

private

Definition at line 94 of file qwt_polar_picker.h.

The documentation for this class was generated from the following files:

Classes

Signals

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation