Qwt User's Guide
6.0.2
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#include <qwt_plot_picker.h>
Signals | |
void | appended (const QPointF &pos) |
void | moved (const QPointF &pos) |
void | selected (const QPointF &pos) |
void | selected (const QRectF &rect) |
void | selected (const QVector< QPointF > &pa) |
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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 | |
QwtPlotPicker (QwtPlotCanvas *) | |
QwtPlotPicker (int xAxis, int yAxis, QwtPlotCanvas *) | |
QwtPlotPicker (int xAxis, int yAxis, RubberBand rubberBand, DisplayMode trackerMode, QwtPlotCanvas *) | |
virtual | ~QwtPlotPicker () |
QwtPlotCanvas * | canvas () |
const QwtPlotCanvas * | canvas () const |
QwtPlot * | plot () |
const QwtPlot * | plot () const |
virtual void | setAxis (int xAxis, int yAxis) |
int | xAxis () const |
int | yAxis () const |
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QwtPicker (QWidget *parent) | |
QwtPicker (RubberBand rubberBand, DisplayMode trackerMode, QWidget *) | |
virtual | ~QwtPicker () |
virtual void | drawRubberBand (QPainter *) const |
virtual void | drawTracker (QPainter *) const |
virtual bool | eventFilter (QObject *, QEvent *) |
bool | isActive () const |
bool | isEnabled () const |
QWidget * | parentWidget () |
const QWidget * | parentWidget () const |
virtual QRect | pickRect () const |
ResizeMode | resizeMode () const |
RubberBand | rubberBand () const |
QPen | rubberBandPen () const |
QPolygon | selection () const |
void | setResizeMode (ResizeMode) |
void | setRubberBand (RubberBand) |
void | setRubberBandPen (const QPen &) |
void | setStateMachine (QwtPickerMachine *) |
void | setTrackerFont (const QFont &) |
void | setTrackerMode (DisplayMode) |
void | setTrackerPen (const QPen &) |
const QwtPickerMachine * | stateMachine () const |
QwtPickerMachine * | stateMachine () |
QFont | trackerFont () const |
DisplayMode | trackerMode () const |
QPen | trackerPen () const |
QPoint | trackerPosition () const |
virtual QRect | trackerRect (const QFont &) const |
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QwtEventPattern () | |
virtual | ~QwtEventPattern () |
void | initKeyPattern () |
void | initMousePattern (int numButtons) |
bool | keyMatch (uint pattern, const QKeyEvent *) const |
const QVector< KeyPattern > & | keyPattern () const |
QVector< KeyPattern > & | keyPattern () |
bool | mouseMatch (uint pattern, const QMouseEvent *) const |
const QVector< MousePattern > & | mousePattern () const |
QVector< MousePattern > & | mousePattern () |
void | setKeyPattern (uint pattern, int key, int state=Qt::NoButton) |
void | setKeyPattern (const QVector< KeyPattern > &) |
void | setMousePattern (uint pattern, int button, int state=Qt::NoButton) |
void | setMousePattern (const QVector< MousePattern > &) |
Protected Member Functions | |
virtual void | append (const QPoint &) |
virtual bool | end (bool ok=true) |
QRectF | invTransform (const QRect &) const |
QPointF | invTransform (const QPoint &) const |
virtual void | move (const QPoint &) |
QRectF | scaleRect () const |
virtual QwtText | trackerText (const QPoint &) const |
virtual QwtText | trackerTextF (const QPointF &) const |
QRect | transform (const QRectF &) const |
QPoint | transform (const QPointF &) const |
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virtual bool | accept (QPolygon &) const |
virtual QPolygon | adjustedPoints (const QPolygon &) const |
virtual void | begin () |
const QPolygon & | pickedPoints () const |
virtual void | remove () |
virtual void | reset () |
const QWidget * | rubberBandWidget () const |
virtual void | stretchSelection (const QSize &oldSize, const QSize &newSize) |
const QWidget * | trackerWidget () const |
virtual void | transition (const QEvent *) |
virtual void | updateDisplay () |
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 *) |
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virtual bool | keyMatch (const KeyPattern &, const QKeyEvent *) const |
virtual bool | mouseMatch (const MousePattern &, const QMouseEvent *) const |
Additional Inherited Members | |
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enum | DisplayMode { AlwaysOff, AlwaysOn, ActiveOnly } |
enum | ResizeMode { Stretch, KeepSize } |
enum | RubberBand { NoRubberBand = 0, HLineRubberBand, VLineRubberBand, CrossRubberBand, RectRubberBand, EllipseRubberBand, PolygonRubberBand, UserRubberBand = 100 } |
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enum | KeyPatternCode { KeySelect1, KeySelect2, KeyAbort, KeyLeft, KeyRight, KeyUp, KeyDown, KeyRedo, KeyUndo, KeyHome, KeyPatternCount } |
enum | MousePatternCode { MouseSelect1, MouseSelect2, MouseSelect3, MouseSelect4, MouseSelect5, MouseSelect6, MousePatternCount } |
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void | setEnabled (bool) |
QwtPlotPicker provides selections on a plot canvas.
QwtPlotPicker is a QwtPicker tailored for selections on a plot canvas. It is set to a x-Axis and y-Axis and translates all pixel coordinates into this coodinate system.
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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 QwtPlot::xBottom. If both or no y-axis are enabled, it is set to QwtPlot::yLeft.
canvas | Plot canvas to observe, also the parent object |
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explicit |
Create a plot picker
xAxis | Set the x axis of the picker |
yAxis | Set the y axis of the picker |
canvas | Plot canvas to observe, also the parent object |
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explicit |
Create a plot picker
xAxis | X axis of the picker |
yAxis | Y axis of the picker |
rubberBand | Rubberband style |
trackerMode | Tracker mode |
canvas | Plot canvas to observe, also the parent object |
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protectedvirtual |
Append a point to the selection and update rubberband and tracker.
pos | Additional point |
Reimplemented from QwtPicker.
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signal |
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protectedvirtual |
Close a selection setting the state to inactive.
ok | If true, complete the selection and emit selected signals otherwise discard the selection. |
Reimplemented from QwtPicker.
Reimplemented in QwtPlotZoomer.
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protected |
Translate a rectangle from pixel into plot coordinates
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protected |
Translate a point from pixel into plot coordinates
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protectedvirtual |
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signal |
A signal emitted whenever the last appended point of the selection has been moved.
pos | Position of the moved last point of the selection. |
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protected |
Return normalized bounding rect of the axes
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signal |
A signal emitted in case of selectionFlags() & PointSelection.
pos | Selected point |
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signal |
A signal emitted in case of selectionFlags() & RectSelection.
rect | Selected rectangle |
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signal |
A signal emitting the selected points, at the end of a selection.
pa | Selected points |
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virtual |
Set the x and y axes of the picker
xAxis | X axis |
yAxis | Y axis |
Reimplemented in QwtPlotZoomer.
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protectedvirtual |
Translate a pixel position into a position string
pos | Position in pixel coordinates |
Reimplemented from QwtPicker.
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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".
pos | Position |
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protected |
Translate a rectangle from plot into pixel coordinates
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protected |
Translate a point from plot into pixel coordinates