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Qwt User's Guide
6.2.0
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QwtPolarPicker provides selections on a plot canvas. More...
#include <qwt_polar_picker.h>
Signals | |
| void | selected (const QwtPointPolar &pos) |
| void | selected (const QVector< QwtPointPolar > &points) |
| void | appended (const QwtPointPolar &pos) |
| void | moved (const QwtPointPolar &pos) |
Signals inherited from QwtPicker | |
| void | activated (bool on) |
| void | selected (const QPolygon &polygon) |
| void | appended (const QPoint &pos) |
| void | moved (const QPoint &pos) |
| void | removed (const QPoint &pos) |
| void | changed (const QPolygon &selection) |
Public Member Functions | |
| QwtPolarPicker (QwtPolarCanvas *) | |
| Create a polar plot picker. More... | |
| virtual | ~QwtPolarPicker () |
| Destructor. | |
| QwtPolarPicker (RubberBand rubberBand, DisplayMode trackerMode, QwtPolarCanvas *) | |
| QwtPolarPlot * | plot () |
| const QwtPolarPlot * | plot () const |
| QwtPolarCanvas * | canvas () |
| const QwtPolarCanvas * | canvas () const |
| virtual QRect | pickRect () const |
Public Member Functions inherited from QwtPicker | |
| QwtPicker (QWidget *parent) | |
| QwtPicker (RubberBand rubberBand, DisplayMode trackerMode, QWidget *) | |
| virtual | ~QwtPicker () |
| Destructor. | |
| void | setStateMachine (QwtPickerMachine *) |
| const QwtPickerMachine * | stateMachine () const |
| QwtPickerMachine * | stateMachine () |
| void | setRubberBand (RubberBand) |
| RubberBand | rubberBand () const |
| void | setTrackerMode (DisplayMode) |
| Set the display mode of the tracker. More... | |
| DisplayMode | trackerMode () const |
| void | setResizeMode (ResizeMode) |
| Set the resize mode. More... | |
| ResizeMode | resizeMode () const |
| void | setRubberBandPen (const QPen &) |
| QPen | rubberBandPen () const |
| void | setTrackerPen (const QPen &) |
| QPen | trackerPen () const |
| void | setTrackerFont (const QFont &) |
| QFont | trackerFont () const |
| bool | isEnabled () const |
| bool | isActive () const |
| virtual bool | eventFilter (QObject *, QEvent *) override |
| Event filter. More... | |
| QWidget * | parentWidget () |
| Return the parent widget, where the selection happens. | |
| const QWidget * | parentWidget () const |
| Return the parent widget, where the selection happens. | |
| virtual void | drawRubberBand (QPainter *) const |
| virtual void | drawTracker (QPainter *) const |
| virtual QRegion | trackerMask () const |
| virtual QRegion | rubberBandMask () const |
| QPoint | trackerPosition () const |
| virtual QRect | trackerRect (const QFont &) const |
| QPolygon | selection () const |
Public Member Functions inherited from QwtEventPattern | |
| QwtEventPattern () | |
| virtual | ~QwtEventPattern () |
| Destructor. | |
| void | initMousePattern (int numButtons) |
| void | initKeyPattern () |
| void | setMousePattern (MousePatternCode, Qt::MouseButton button, Qt::KeyboardModifiers=Qt::NoModifier) |
| void | setKeyPattern (KeyPatternCode, int key, Qt::KeyboardModifiers modifiers=Qt::NoModifier) |
| void | setMousePattern (const QVector< MousePattern > &) |
| Change the mouse event patterns. | |
| void | setKeyPattern (const QVector< KeyPattern > &) |
| Change the key event patterns. | |
| const QVector< MousePattern > & | mousePattern () const |
| const QVector< KeyPattern > & | keyPattern () const |
| QVector< MousePattern > & | mousePattern () |
| QVector< KeyPattern > & | keyPattern () |
| bool | mouseMatch (MousePatternCode, const QMouseEvent *) const |
| Compare a mouse event with an event pattern. More... | |
| bool | keyMatch (KeyPatternCode, const QKeyEvent *) const |
| Compare a key event with an event pattern. More... | |
Protected Member Functions | |
| QwtPointPolar | invTransform (const QPoint &) const |
| virtual QwtText | trackerText (const QPoint &) const override |
| virtual QwtText | trackerTextPolar (const QwtPointPolar &) const |
| Translate a position into a position string. More... | |
| virtual void | move (const QPoint &) override |
| virtual void | append (const QPoint &) override |
| virtual bool | end (bool ok=true) override |
Protected Member Functions inherited from QwtPicker | |
| virtual QPolygon | adjustedPoints (const QPolygon &) const |
| Map the pickedPoints() into a selection() More... | |
| virtual void | transition (const QEvent *) |
| virtual void | begin () |
| virtual void | remove () |
| virtual bool | accept (QPolygon &) const |
| Validate and fix up the selection. More... | |
| virtual void | reset () |
| virtual void | widgetMousePressEvent (QMouseEvent *) |
| virtual void | widgetMouseReleaseEvent (QMouseEvent *) |
| virtual void | widgetMouseDoubleClickEvent (QMouseEvent *) |
| virtual void | widgetMouseMoveEvent (QMouseEvent *) |
| virtual void | widgetWheelEvent (QWheelEvent *) |
| virtual void | widgetKeyPressEvent (QKeyEvent *) |
| virtual void | widgetKeyReleaseEvent (QKeyEvent *) |
| virtual void | widgetEnterEvent (QEvent *) |
| virtual void | widgetLeaveEvent (QEvent *) |
| virtual void | stretchSelection (const QSize &oldSize, const QSize &newSize) |
| virtual void | updateDisplay () |
| Update the state of rubber band and tracker label. | |
| const QwtWidgetOverlay * | rubberBandOverlay () const |
| const QwtWidgetOverlay * | trackerOverlay () const |
| const QPolygon & | pickedPoints () const |
Protected Member Functions inherited from QwtEventPattern | |
| virtual bool | mouseMatch (const MousePattern &, const QMouseEvent *) const |
| Compare a mouse event with an event pattern. More... | |
| virtual bool | keyMatch (const KeyPattern &, const QKeyEvent *) const |
| Compare a key event with an event pattern. More... | |
Private Member Functions | |
| virtual QPainterPath | pickArea () const override |
Additional Inherited Members | |
Public Types inherited from QwtPicker | |
| enum | RubberBand { NoRubberBand = 0 , HLineRubberBand , VLineRubberBand , CrossRubberBand , RectRubberBand , EllipseRubberBand , PolygonRubberBand , UserRubberBand = 100 } |
| enum | DisplayMode { AlwaysOff , AlwaysOn , ActiveOnly } |
| Display mode. More... | |
| enum | ResizeMode { Stretch , KeepSize } |
Public Types inherited from QwtEventPattern | |
| enum | MousePatternCode { MouseSelect1 , MouseSelect2 , MouseSelect3 , MouseSelect4 , MouseSelect5 , MouseSelect6 , MousePatternCount } |
| Symbolic mouse input codes. More... | |
| enum | KeyPatternCode { KeySelect1 , KeySelect2 , KeyAbort , KeyLeft , KeyRight , KeyUp , KeyDown , KeyRedo , KeyUndo , KeyHome , KeyPatternCount } |
| Symbolic keyboard input codes. More... | |
Public Slots inherited from QwtPicker | |
| void | setEnabled (bool) |
| En/disable the picker. More... | |
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.
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explicit |
Create a polar plot picker.
| canvas | Plot canvas to observe, also the parent object |
Definition at line 25 of file qwt_polar_picker.cpp.
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explicit |
Create a plot picker
| rubberBand | Rubberband style |
| trackerMode | Tracker mode |
| canvas | Plot canvas to observe, also the parent object |
Definition at line 43 of file qwt_polar_picker.cpp.
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overrideprotectedvirtual |
Append a point to the selection and update rubberband and tracker.
| pos | Additional point |
Reimplemented from QwtPicker.
Definition at line 128 of file qwt_polar_picker.cpp.
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signal |
| QwtPolarCanvas * QwtPolarPicker::canvas | ( | ) |
Definition at line 56 of file qwt_polar_picker.cpp.
| const QwtPolarCanvas * QwtPolarPicker::canvas | ( | ) | const |
Definition at line 62 of file qwt_polar_picker.cpp.
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overrideprotectedvirtual |
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.
Definition at line 157 of file qwt_polar_picker.cpp.
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protected |
Translate a point from widget into plot coordinates
| pos | Point in widget coordinates of the plot canvas |
Definition at line 208 of file qwt_polar_picker.cpp.
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overrideprotectedvirtual |
Move the last point of the selection
| pos | New position |
Reimplemented from QwtPicker.
Definition at line 143 of file qwt_polar_picker.cpp.
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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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overrideprivatevirtual |
Find the area of the observed widget, where selection might happen.
Reimplemented from QwtPicker.
Definition at line 229 of file qwt_polar_picker.cpp.
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virtual |
Definition at line 221 of file qwt_polar_picker.cpp.
| QwtPolarPlot * QwtPolarPicker::plot | ( | ) |
Definition at line 68 of file qwt_polar_picker.cpp.
| const QwtPolarPlot * QwtPolarPicker::plot | ( | ) | const |
Definition at line 78 of file qwt_polar_picker.cpp.
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signal |
A signal emitting the selected points, at the end of a selection.
| points | Selected points |
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signal |
A signal emitted in case of selectionFlags() & PointSelection.
| pos | Selected point |
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overrideprotectedvirtual |
Translate a pixel position into a position string
| pos | Position in pixel coordinates |
Reimplemented from QwtPicker.
Definition at line 93 of file qwt_polar_picker.cpp.
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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 |
Definition at line 111 of file qwt_polar_picker.cpp.