Signals¶

void selected (const QPointF &pos)
void selected (const QRectF &rect)
void selected (const QVector< QPointF > &pa)
void appended (const QPointF &pos)
void moved (const QPointF &pos)

Public Member Functions¶

QwtPlotPicker (QWidget *canvas)
Create a plot picker. virtual ~QwtPlotPicker ()
Destructor. QwtPlotPicker (QwtAxisId xAxisId, QwtAxisId yAxisId, QWidget *)
QwtPlotPicker (QwtAxisId xAxisId, QwtAxisId yAxisId, RubberBand rubberBand, DisplayMode trackerMode, QWidget *)
virtual void setAxes (QwtAxisId xAxisId, QwtAxisId yAxisId)
QwtAxisId xAxis () const
Return x axis. QwtAxisId yAxis () const
Return y axis. QwtPlot * plot ()
const QwtPlot * plot () const
QWidget * canvas ()
const QWidget * canvas () const

Protected Member Functions¶

QRectF scaleRect () const
QRectF invTransform (const QRect &) const
QRect transform (const QRectF &) const
QPointF invTransform (const QPoint &) const
QPoint transform (const QPointF &) const
virtual QwtText trackerText (const QPoint &) const override
virtual QwtText trackerTextF (const QPointF &) const
Translate a position into a position string. virtual void move (const QPoint &) override
virtual void append (const QPoint &) override
virtual bool end (bool ok=true) override

Additional Inherited Members¶

QwtPlotPicker::QwtPlotPicker (QWidget * canvas) [explicit]¶

Create a plot picker. The picker is set to those x- and y-axis of the plot that are enabled. If both or no x-axis are enabled, the picker is set to QwtAxis::XBottom. If both or no y-axis are enabled, it is set to QwtAxis::YLeft.

Parameters

See also

Definition at line 43 of file qwt_plot_picker.cpp.

QwtPlotPicker::QwtPlotPicker (QwtAxisId xAxisId, QwtAxisId yAxisId, QWidget * canvas) [explicit]¶

Create a plot picker

Parameters

See also

Definition at line 76 of file qwt_plot_picker.cpp.

QwtPlotPicker::QwtPlotPicker (QwtAxisId xAxisId, QwtAxisId yAxisId, RubberBand rubberBand, DisplayMode trackerMode, QWidget * canvas) [explicit]¶

Create a plot picker

Parameters

See also

Definition at line 98 of file qwt_plot_picker.cpp.

void QwtPlotPicker::append (const QPoint & pos) [override], [protected], [virtual]¶

Append a point to the selection and update rubber band and tracker.

Parameters

See also

Note

Reimplemented from QwtPicker.

Definition at line 251 of file qwt_plot_picker.cpp.

void QwtPlotPicker::appended (const QPointF & pos) [signal]¶

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

Parameters

See also

QWidget * QwtPlotPicker::canvas ()¶

Returns

Definition at line 114 of file qwt_plot_picker.cpp.

const QWidget * QwtPlotPicker::canvas () const¶

Returns

Definition at line 120 of file qwt_plot_picker.cpp.

bool QwtPlotPicker::end (bool ok = true) [override], [protected], [virtual]¶

Close a selection setting the state to inactive.

Parameters

Returns

Reimplemented from QwtPicker.

Reimplemented in QwtPlotZoomer.

Definition at line 280 of file qwt_plot_picker.cpp.

QPointF QwtPlotPicker::invTransform (const QPoint & pos) const [protected]¶

Translate a point from pixel into plot coordinates

Returns

See also

Definition at line 367 of file qwt_plot_picker.cpp.

QRectF QwtPlotPicker::invTransform (const QRect & rect) const [protected]¶

Translate a rectangle from pixel into plot coordinates

Returns

See also

Definition at line 341 of file qwt_plot_picker.cpp.

void QwtPlotPicker::move (const QPoint & pos) [override], [protected], [virtual]¶

Move the last point of the selection

Parameters

See also

Note

Reimplemented from QwtPicker.

Definition at line 266 of file qwt_plot_picker.cpp.

void QwtPlotPicker::moved (const QPointF & pos) [signal]¶

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

Parameters

See also

QwtPlot * QwtPlotPicker::plot ()¶

Returns

Definition at line 126 of file qwt_plot_picker.cpp.

const QwtPlot * QwtPlotPicker::plot () const¶

Returns

Definition at line 136 of file qwt_plot_picker.cpp.

QRectF QwtPlotPicker::scaleRect () const [protected]¶

Returns

See also

Definition at line 149 of file qwt_plot_picker.cpp.

void QwtPlotPicker::selected (const QPointF & pos) [signal]¶

A signal emitted in case of QwtPickerMachine::PointSelection.

Parameters

void QwtPlotPicker::selected (const QRectF & rect) [signal]¶

A signal emitted in case of QwtPickerMachine::RectSelection.

Parameters

void QwtPlotPicker::selected (const QVector< QPointF > & pa) [signal]¶

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

Parameters

void QwtPlotPicker::setAxes (QwtAxisId xAxisId, QwtAxisId yAxisId) [virtual]¶

Set the x and y axes of the picker

Parameters

Reimplemented in QwtPlotZoomer.

Definition at line 172 of file qwt_plot_picker.cpp.

QwtText QwtPlotPicker::trackerText (const QPoint & pos) const [override], [protected], [virtual]¶

Translate a pixel position into a position string

Parameters

Returns

Reimplemented from QwtPicker.

Definition at line 203 of file qwt_plot_picker.cpp.

QwtText QwtPlotPicker::trackerTextF (const QPointF & pos) const [protected], [virtual]¶

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

Returns

Definition at line 223 of file qwt_plot_picker.cpp.

QPoint QwtPlotPicker::transform (const QPointF & pos) const [protected]¶

Translate a point from plot into pixel coordinates

Returns

See also

Definition at line 383 of file qwt_plot_picker.cpp.

QRect QwtPlotPicker::transform (const QRectF & rect) const [protected]¶

Translate a rectangle from plot into pixel coordinates

Returns

See also

Definition at line 354 of file qwt_plot_picker.cpp.