.TH "QwtPlotPicker" 3 "Mon Aug 1 2011" "Version 5.2.2" "Qwt User's Guide" \" -*- nroff -*-
.ad l
.nh
.SH NAME
QwtPlotPicker \- 
.PP
\fBQwtPlotPicker\fP provides selections on a plot canvas.  

.SH SYNOPSIS
.br
.PP
.PP
\fC#include <qwt_plot_picker.h>\fP
.PP
Inherits \fBQwtPicker\fP.
.PP
Inherited by \fBQwtPlotZoomer\fP.
.SS "Public Types"

.in +1c
.ti -1c
.RI "enum \fBDisplayMode\fP { \fBAlwaysOff\fP, \fBAlwaysOn\fP, \fBActiveOnly\fP }"
.br
.ti -1c
.RI "enum \fBKeyPatternCode\fP { \fBKeySelect1\fP, \fBKeySelect2\fP, \fBKeyAbort\fP, \fBKeyLeft\fP, \fBKeyRight\fP, \fBKeyUp\fP, \fBKeyDown\fP, \fBKeyRedo\fP, \fBKeyUndo\fP, \fBKeyHome\fP, \fBKeyPatternCount\fP }"
.br
.ti -1c
.RI "enum \fBMousePatternCode\fP { \fBMouseSelect1\fP, \fBMouseSelect2\fP, \fBMouseSelect3\fP, \fBMouseSelect4\fP, \fBMouseSelect5\fP, \fBMouseSelect6\fP, \fBMousePatternCount\fP }"
.br
.ti -1c
.RI "enum \fBRectSelectionType\fP { \fBCornerToCorner\fP =  64, \fBCenterToCorner\fP =  128, \fBCenterToRadius\fP =  256 }"
.br
.ti -1c
.RI "enum \fBResizeMode\fP { \fBStretch\fP, \fBKeepSize\fP }"
.br
.ti -1c
.RI "enum \fBRubberBand\fP { \fBNoRubberBand\fP =  0, \fBHLineRubberBand\fP, \fBVLineRubberBand\fP, \fBCrossRubberBand\fP, \fBRectRubberBand\fP, \fBEllipseRubberBand\fP, \fBPolygonRubberBand\fP, \fBUserRubberBand\fP =  100 }"
.br
.ti -1c
.RI "enum \fBSelectionMode\fP { \fBClickSelection\fP =  1024, \fBDragSelection\fP =  2048 }"
.br
.ti -1c
.RI "enum \fBSelectionType\fP { \fBNoSelection\fP =  0, \fBPointSelection\fP =  1, \fBRectSelection\fP =  2, \fBPolygonSelection\fP =  4 }"
.br
.in -1c
.SS "Signals"

.in +1c
.ti -1c
.RI "void \fBappended\fP (const QwtDoublePoint &pos)"
.br
.ti -1c
.RI "void \fBappended\fP (const QPoint &pos)"
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.ti -1c
.RI "void \fBchanged\fP (const QwtPolygon &pa)"
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.ti -1c
.RI "void \fBmoved\fP (const QwtDoublePoint &pos)"
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.ti -1c
.RI "void \fBmoved\fP (const QPoint &pos)"
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.ti -1c
.RI "void \fBselected\fP (const QwtDoublePoint &pos)"
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.ti -1c
.RI "void \fBselected\fP (const QwtDoubleRect &rect)"
.br
.ti -1c
.RI "void \fBselected\fP (const QwtPolygon &pa)"
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.ti -1c
.RI "void \fBselected\fP (const QwtArray< QwtDoublePoint > &pa)"
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.in -1c
.SS "Public Member Functions"

.in +1c
.ti -1c
.RI "\fBQwtPlotCanvas\fP * \fBcanvas\fP ()"
.br
.ti -1c
.RI "const \fBQwtPlotCanvas\fP * \fBcanvas\fP () const "
.br
.ti -1c
.RI "virtual void \fBdrawRubberBand\fP (QPainter *) const "
.br
.ti -1c
.RI "virtual void \fBdrawTracker\fP (QPainter *) const "
.br
.ti -1c
.RI "virtual bool \fBeventFilter\fP (QObject *, QEvent *)"
.br
.ti -1c
.RI "void \fBinitKeyPattern\fP ()"
.br
.ti -1c
.RI "void \fBinitMousePattern\fP (int numButtons)"
.br
.ti -1c
.RI "bool \fBisActive\fP () const "
.br
.ti -1c
.RI "bool \fBisEnabled\fP () const "
.br
.ti -1c
.RI "bool \fBkeyMatch\fP (uint pattern, const QKeyEvent *) const "
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.ti -1c
.RI "const QwtArray< \fBKeyPattern\fP > & \fBkeyPattern\fP () const "
.br
.ti -1c
.RI "QwtArray< \fBKeyPattern\fP > & \fBkeyPattern\fP ()"
.br
.ti -1c
.RI "bool \fBmouseMatch\fP (uint pattern, const QMouseEvent *) const "
.br
.ti -1c
.RI "QwtArray< \fBMousePattern\fP > & \fBmousePattern\fP ()"
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.ti -1c
.RI "const QwtArray< \fBMousePattern\fP > & \fBmousePattern\fP () const "
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.ti -1c
.RI "QWidget * \fBparentWidget\fP ()"
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.ti -1c
.RI "const QWidget * \fBparentWidget\fP () const "
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.ti -1c
.RI "virtual QRect \fBpickRect\fP () const "
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.ti -1c
.RI "const \fBQwtPlot\fP * \fBplot\fP () const "
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.ti -1c
.RI "\fBQwtPlot\fP * \fBplot\fP ()"
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.ti -1c
.RI "\fBQwtPlotPicker\fP (\fBQwtPlotCanvas\fP *)"
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.ti -1c
.RI "\fBQwtPlotPicker\fP (int xAxis, int yAxis, int selectionFlags, \fBRubberBand\fP rubberBand, \fBDisplayMode\fP trackerMode, \fBQwtPlotCanvas\fP *)"
.br
.ti -1c
.RI "\fBQwtPlotPicker\fP (int xAxis, int yAxis, \fBQwtPlotCanvas\fP *)"
.br
.ti -1c
.RI "\fBResizeMode\fP \fBresizeMode\fP () const "
.br
.ti -1c
.RI "\fBRubberBand\fP \fBrubberBand\fP () const "
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.ti -1c
.RI "QPen \fBrubberBandPen\fP () const "
.br
.ti -1c
.RI "const QwtPolygon & \fBselection\fP () const "
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.ti -1c
.RI "int \fBselectionFlags\fP () const "
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.ti -1c
.RI "virtual void \fBsetAxis\fP (int xAxis, int yAxis)"
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.ti -1c
.RI "virtual void \fBsetEnabled\fP (bool)"
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.RI "void \fBsetKeyPattern\fP (uint pattern, int key, int state=Qt::NoButton)"
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.ti -1c
.RI "void \fBsetKeyPattern\fP (const QwtArray< \fBKeyPattern\fP > &)"
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.ti -1c
.RI "void \fBsetMousePattern\fP (const QwtArray< \fBMousePattern\fP > &)"
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.ti -1c
.RI "void \fBsetMousePattern\fP (uint pattern, int button, int state=Qt::NoButton)"
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.ti -1c
.RI "virtual void \fBsetResizeMode\fP (\fBResizeMode\fP)"
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.ti -1c
.RI "virtual void \fBsetRubberBand\fP (\fBRubberBand\fP)"
.br
.ti -1c
.RI "virtual void \fBsetRubberBandPen\fP (const QPen &)"
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.ti -1c
.RI "virtual void \fBsetSelectionFlags\fP (int)"
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.ti -1c
.RI "virtual void \fBsetTrackerFont\fP (const QFont &)"
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.ti -1c
.RI "virtual void \fBsetTrackerMode\fP (\fBDisplayMode\fP)"
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.ti -1c
.RI "virtual void \fBsetTrackerPen\fP (const QPen &)"
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.ti -1c
.RI "QFont \fBtrackerFont\fP () const "
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.ti -1c
.RI "\fBDisplayMode\fP \fBtrackerMode\fP () const "
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.ti -1c
.RI "QPen \fBtrackerPen\fP () const "
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.ti -1c
.RI "QPoint \fBtrackerPosition\fP () const "
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.RI "QRect \fBtrackerRect\fP (const QFont &) const "
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.ti -1c
.RI "int \fBxAxis\fP () const "
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.ti -1c
.RI "int \fByAxis\fP () const "
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.ti -1c
.RI "virtual \fB~QwtPlotPicker\fP ()"
.br
.in -1c
.SS "Protected Member Functions"

.in +1c
.ti -1c
.RI "virtual bool \fBaccept\fP (QwtPolygon &selection) const "
.br
.ti -1c
.RI "virtual void \fBappend\fP (const QPoint &)"
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.ti -1c
.RI "virtual void \fBbegin\fP ()"
.br
.ti -1c
.RI "virtual bool \fBend\fP (bool ok=true)"
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.ti -1c
.RI "QwtDoublePoint \fBinvTransform\fP (const QPoint &) const "
.br
.ti -1c
.RI "QwtDoubleRect \fBinvTransform\fP (const QRect &) const "
.br
.ti -1c
.RI "virtual bool \fBkeyMatch\fP (const \fBKeyPattern\fP &, const QKeyEvent *) const "
.br
.ti -1c
.RI "virtual bool \fBmouseMatch\fP (const \fBMousePattern\fP &, const QMouseEvent *) const "
.br
.ti -1c
.RI "virtual void \fBmove\fP (const QPoint &)"
.br
.ti -1c
.RI "virtual void \fBreset\fP ()"
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.ti -1c
.RI "const QWidget * \fBrubberBandWidget\fP () const "
.br
.ti -1c
.RI "QwtDoubleRect \fBscaleRect\fP () const "
.br
.ti -1c
.RI "virtual \fBQwtPickerMachine\fP * \fBstateMachine\fP (int) const "
.br
.ti -1c
.RI "virtual void \fBstretchSelection\fP (const QSize &oldSize, const QSize &newSize)"
.br
.ti -1c
.RI "virtual \fBQwtText\fP \fBtrackerText\fP (const QPoint &) const "
.br
.ti -1c
.RI "virtual \fBQwtText\fP \fBtrackerText\fP (const QwtDoublePoint &) const "
.br
.ti -1c
.RI "const QWidget * \fBtrackerWidget\fP () const "
.br
.ti -1c
.RI "QPoint \fBtransform\fP (const QwtDoublePoint &) const "
.br
.ti -1c
.RI "QRect \fBtransform\fP (const QwtDoubleRect &) const "
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.ti -1c
.RI "virtual void \fBtransition\fP (const QEvent *)"
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.ti -1c
.RI "virtual void \fBupdateDisplay\fP ()"
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.ti -1c
.RI "virtual void \fBwidgetKeyPressEvent\fP (QKeyEvent *)"
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.ti -1c
.RI "virtual void \fBwidgetKeyReleaseEvent\fP (QKeyEvent *)"
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.ti -1c
.RI "virtual void \fBwidgetLeaveEvent\fP (QEvent *)"
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.ti -1c
.RI "virtual void \fBwidgetMouseDoubleClickEvent\fP (QMouseEvent *)"
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.ti -1c
.RI "virtual void \fBwidgetMouseMoveEvent\fP (QMouseEvent *)"
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.ti -1c
.RI "virtual void \fBwidgetMousePressEvent\fP (QMouseEvent *)"
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.ti -1c
.RI "virtual void \fBwidgetMouseReleaseEvent\fP (QMouseEvent *)"
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.ti -1c
.RI "virtual void \fBwidgetWheelEvent\fP (QWheelEvent *)"
.br
.in -1c
.SH "Detailed Description"
.PP 
\fBQwtPlotPicker\fP provides selections on a plot canvas. 

\fBQwtPlotPicker\fP is a \fBQwtPicker\fP 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. 
.SH "Member Enumeration Documentation"
.PP 
.SS "enum \fBQwtPicker::DisplayMode\fP\fC [inherited]\fP".IP "\(bu" 2
AlwaysOff
.br
 Display never.
.IP "\(bu" 2
AlwaysOn
.br
 Display always.
.IP "\(bu" 2
ActiveOnly
.br
 Display only when the selection is active.
.PP
.PP
\fBSee also:\fP
.RS 4
\fBQwtPicker::setTrackerMode()\fP, \fBQwtPicker::trackerMode()\fP, \fBQwtPicker::isActive()\fP 
.RE
.PP

.SS "enum \fBQwtEventPattern::KeyPatternCode\fP\fC [inherited]\fP"
.PP
Symbolic keyboard input codes. Default initialization:
.IP "\(bu" 2
KeySelect1
.br
 Qt::Key_Return
.IP "\(bu" 2
KeySelect2
.br
 Qt::Key_Space
.IP "\(bu" 2
KeyAbort
.br
 Qt::Key_Escape
.PP
.PP
.IP "\(bu" 2
KeyLeft
.br
 Qt::Key_Left
.IP "\(bu" 2
KeyRight
.br
 Qt::Key_Right
.IP "\(bu" 2
KeyUp
.br
 Qt::Key_Up
.IP "\(bu" 2
KeyDown
.br
 Qt::Key_Down
.PP
.PP
.IP "\(bu" 2
KeyUndo
.br
 Qt::Key_Minus
.IP "\(bu" 2
KeyRedo
.br
 Qt::Key_Plus
.IP "\(bu" 2
KeyHome
.br
 Qt::Key_Escape 
.PP

.SS "enum \fBQwtEventPattern::MousePatternCode\fP\fC [inherited]\fP"
.PP
Symbolic mouse input codes. The default initialization for 3 button mice is:
.IP "\(bu" 2
MouseSelect1
.br
 Qt::LeftButton
.IP "\(bu" 2
MouseSelect2
.br
 Qt::RightButton
.IP "\(bu" 2
MouseSelect3
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 Qt::MidButton
.IP "\(bu" 2
MouseSelect4
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 Qt::LeftButton + Qt::ShiftButton
.IP "\(bu" 2
MouseSelect5
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 Qt::RightButton + Qt::ShiftButton
.IP "\(bu" 2
MouseSelect6
.br
 Qt::MidButton + Qt::ShiftButton
.PP
.PP
The default initialization for 2 button mice is:
.IP "\(bu" 2
MouseSelect1
.br
 Qt::LeftButton
.IP "\(bu" 2
MouseSelect2
.br
 Qt::RightButton
.IP "\(bu" 2
MouseSelect3
.br
 Qt::LeftButton + Qt::AltButton
.IP "\(bu" 2
MouseSelect4
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 Qt::LeftButton + Qt::ShiftButton
.IP "\(bu" 2
MouseSelect5
.br
 Qt::RightButton + Qt::ShiftButton
.IP "\(bu" 2
MouseSelect6
.br
 Qt::LeftButton + Qt::AltButton + Qt::ShiftButton
.PP
.PP
The default initialization for 1 button mice is:
.IP "\(bu" 2
MouseSelect1
.br
 Qt::LeftButton
.IP "\(bu" 2
MouseSelect2
.br
 Qt::LeftButton + Qt::ControlButton
.IP "\(bu" 2
MouseSelect3
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 Qt::LeftButton + Qt::AltButton
.IP "\(bu" 2
MouseSelect4
.br
 Qt::LeftButton + Qt::ShiftButton
.IP "\(bu" 2
MouseSelect5
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 Qt::LeftButton + Qt::ControlButton + Qt::ShiftButton
.IP "\(bu" 2
MouseSelect6
.br
 Qt::LeftButton + Qt::AltButton + Qt::ShiftButton
.PP
.PP
\fBSee also:\fP
.RS 4
\fBinitMousePattern()\fP 
.RE
.PP

.SS "enum \fBQwtPicker::RectSelectionType\fP\fC [inherited]\fP"
.PP
Selection subtype for RectSelection This enum type describes the type of rectangle selections. It can be or'd with \fBQwtPicker::RectSelectionType\fP and \fBQwtPicker::SelectionMode\fP and passed to \fBQwtPicker::setSelectionFlags()\fP.
.IP "\(bu" 2
CornerToCorner
.br
 The first and the second selected point are the corners of the rectangle.
.IP "\(bu" 2
CenterToCorner
.br
 The first point is the center, the second a corner of the rectangle.
.IP "\(bu" 2
CenterToRadius
.br
 The first point is the center of a quadrat, calculated by the maximum of the x- and y-distance. 
.PP
The default value is CornerToCorner. 
.PP
\fBSee also:\fP
.RS 4
\fBQwtPicker::setSelectionFlags()\fP, \fBQwtPicker::selectionFlags()\fP 
.RE
.PP

.SS "enum \fBQwtPicker::ResizeMode\fP\fC [inherited]\fP"Controls what to do with the selected points of an active selection when the observed widget is resized.
.IP "\(bu" 2
Stretch
.br
 All points are scaled according to the new size,
.IP "\(bu" 2
KeepSize
.br
 All points remain unchanged.
.PP
.PP
The default value is Stretch. 
.PP
\fBSee also:\fP
.RS 4
\fBQwtPicker::setResizeMode()\fP, QwtPicker::resize() 
.RE
.PP

.SS "enum \fBQwtPicker::RubberBand\fP\fC [inherited]\fP"Rubberband style
.IP "\(bu" 2
NoRubberBand
.br
 No rubberband.
.IP "\(bu" 2
HLineRubberBand & PointSelection
.br
 A horizontal line.
.IP "\(bu" 2
VLineRubberBand & PointSelection
.br
 A vertical line.
.IP "\(bu" 2
CrossRubberBand & PointSelection
.br
 A horizontal and a vertical line.
.IP "\(bu" 2
RectRubberBand & RectSelection
.br
 A rectangle.
.IP "\(bu" 2
EllipseRubberBand & RectSelection
.br
 An ellipse.
.IP "\(bu" 2
PolygonRubberBand &PolygonSelection
.br
 A polygon.
.IP "\(bu" 2
UserRubberBand
.br
 Values >= UserRubberBand can be used to define additional rubber bands.
.PP
.PP
The default value is NoRubberBand. 
.PP
\fBSee also:\fP
.RS 4
\fBQwtPicker::setRubberBand()\fP, \fBQwtPicker::rubberBand()\fP 
.RE
.PP

.SS "enum \fBQwtPicker::SelectionMode\fP\fC [inherited]\fP"Values of this enum type or'd together with a SelectionType value identifies which state machine should be used for the selection.
.PP
The default value is ClickSelection. 
.PP
\fBSee also:\fP
.RS 4
\fBstateMachine()\fP 
.RE
.PP

.SS "enum \fBQwtPicker::SelectionType\fP\fC [inherited]\fP"This enum type describes the type of a selection. It can be or'd with \fBQwtPicker::RectSelectionType\fP and \fBQwtPicker::SelectionMode\fP and passed to \fBQwtPicker::setSelectionFlags()\fP
.IP "\(bu" 2
NoSelection
.br
 Selection is disabled. Note this is different to the disabled state, as you might have a tracker.
.IP "\(bu" 2
PointSelection
.br
 Select a single point.
.IP "\(bu" 2
RectSelection
.br
 Select a rectangle.
.IP "\(bu" 2
PolygonSelection
.br
 Select a polygon.
.PP
.PP
The default value is NoSelection. 
.PP
\fBSee also:\fP
.RS 4
\fBQwtPicker::setSelectionFlags()\fP, \fBQwtPicker::selectionFlags()\fP 
.RE
.PP

.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtPlotPicker::QwtPlotPicker (\fBQwtPlotCanvas\fP *canvas)\fC [explicit]\fP"
.PP
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.
.PP
\fBParameters:\fP
.RS 4
\fIcanvas\fP Plot canvas to observe, also the parent object
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtPlot::autoReplot()\fP, \fBQwtPlot::replot()\fP, \fBQwtPlotPicker::scaleRect()\fP 
.RE
.PP

.SS "QwtPlotPicker::~QwtPlotPicker ()\fC [virtual]\fP"
.PP
Destructor. 
.SS "QwtPlotPicker::QwtPlotPicker (intxAxis, intyAxis, \fBQwtPlotCanvas\fP *canvas)\fC [explicit]\fP"Create a plot picker
.PP
\fBParameters:\fP
.RS 4
\fIxAxis\fP Set the x axis of the picker 
.br
\fIyAxis\fP Set the y axis of the picker 
.br
\fIcanvas\fP Plot canvas to observe, also the parent object
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtPlot::autoReplot()\fP, \fBQwtPlot::replot()\fP, \fBQwtPlotPicker::scaleRect()\fP 
.RE
.PP

.SS "QwtPlotPicker::QwtPlotPicker (intxAxis, intyAxis, intselectionFlags, \fBRubberBand\fPrubberBand, \fBDisplayMode\fPtrackerMode, \fBQwtPlotCanvas\fP *canvas)\fC [explicit]\fP"Create a plot picker
.PP
\fBParameters:\fP
.RS 4
\fIxAxis\fP X axis of the picker 
.br
\fIyAxis\fP Y axis of the picker 
.br
\fIselectionFlags\fP Or'd value of SelectionType, RectSelectionType and SelectionMode 
.br
\fIrubberBand\fP Rubberband style 
.br
\fItrackerMode\fP Tracker mode 
.br
\fIcanvas\fP Plot canvas to observe, also the parent object
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtPicker\fP, \fBQwtPicker::setSelectionFlags()\fP, \fBQwtPicker::setRubberBand()\fP, \fBQwtPicker::setTrackerMode\fP
.PP
\fBQwtPlot::autoReplot()\fP, \fBQwtPlot::replot()\fP, \fBQwtPlotPicker::scaleRect()\fP 
.RE
.PP

.SH "Member Function Documentation"
.PP 
.SS "bool QwtPicker::accept (QwtPolygon &selection) const\fC [protected, virtual, inherited]\fP"
.PP
Validate and fixup the selection. Accepts all selections unmodified
.PP
\fBParameters:\fP
.RS 4
\fIselection\fP Selection to validate and fixup 
.RE
.PP
\fBReturns:\fP
.RS 4
true, when accepted, false otherwise 
.RE
.PP

.PP
Reimplemented in \fBQwtPlotZoomer\fP.
.SS "void QwtPlotPicker::append (const QPoint &pos)\fC [protected, virtual]\fP"Append a point to the selection and update rubberband and tracker.
.PP
\fBParameters:\fP
.RS 4
\fIpos\fP Additional point 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBisActive\fP, \fBbegin()\fP, \fBend()\fP, \fBmove()\fP, \fBappended()\fP
.RE
.PP
\fBNote:\fP
.RS 4
The \fBappended(const QPoint &)\fP, appended(const QDoublePoint &) signals are emitted. 
.RE
.PP

.PP
Reimplemented from \fBQwtPicker\fP.
.SS "void QwtPlotPicker::appended (const QwtDoublePoint &pos)\fC [signal]\fP"A signal emitted when a point has been appended to the selection
.PP
\fBParameters:\fP
.RS 4
\fIpos\fP Position of the appended point. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBappend()\fP. \fBmoved()\fP 
.RE
.PP

.SS "void QwtPicker::appended (const QPoint &pos)\fC [signal, inherited]\fP"A signal emitted when a point has been appended to the selection
.PP
\fBParameters:\fP
.RS 4
\fIpos\fP Position of the appended point. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBappend()\fP. \fBmoved()\fP 
.RE
.PP

.SS "void QwtPicker::begin ()\fC [protected, virtual, inherited]\fP"Open a selection setting the state to active
.PP
\fBSee also:\fP
.RS 4
\fBisActive()\fP, \fBend()\fP, \fBappend()\fP, \fBmove()\fP 
.RE
.PP

.PP
Reimplemented in \fBQwtPlotZoomer\fP.
.SS "\fBQwtPlotCanvas\fP * QwtPlotPicker::canvas ()"
.PP
Return observed plot canvas. 
.SS "const \fBQwtPlotCanvas\fP * QwtPlotPicker::canvas () const"
.PP
Return Observed plot canvas. 
.SS "void QwtPicker::changed (const QwtPolygon &pa)\fC [signal, inherited]\fP"A signal emitted when the active selection has been changed. This might happen when the observed widget is resized.
.PP
\fBParameters:\fP
.RS 4
\fIpa\fP Changed selection 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBstretchSelection()\fP 
.RE
.PP

.SS "void QwtPicker::drawRubberBand (QPainter *painter) const\fC [virtual, inherited]\fP"Draw a rubberband , depending on \fBrubberBand()\fP and \fBselectionFlags()\fP
.PP
\fBParameters:\fP
.RS 4
\fIpainter\fP Painter, initialized with clip rect
.RE
.PP
\fBSee also:\fP
.RS 4
\fBrubberBand()\fP, \fBRubberBand\fP, \fBselectionFlags()\fP 
.RE
.PP

.SS "void QwtPicker::drawTracker (QPainter *painter) const\fC [virtual, inherited]\fP"Draw the tracker
.PP
\fBParameters:\fP
.RS 4
\fIpainter\fP Painter 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBtrackerRect()\fP, \fBtrackerText()\fP 
.RE
.PP

.SS "bool QwtPlotPicker::end (boolok = \fCtrue\fP)\fC [protected, virtual]\fP"Close a selection setting the state to inactive.
.PP
\fBParameters:\fP
.RS 4
\fIok\fP If true, complete the selection and emit selected signals otherwise discard the selection. 
.RE
.PP
\fBReturns:\fP
.RS 4
true if the selection is accepted, false otherwise 
.RE
.PP

.PP
Reimplemented from \fBQwtPicker\fP.
.PP
Reimplemented in \fBQwtPlotZoomer\fP.
.SS "bool QwtPicker::eventFilter (QObject *o, QEvent *e)\fC [virtual, inherited]\fP"
.PP
Event filter. When \fBisEnabled()\fP == true all events of the observed widget are filtered. Mouse and keyboard events are translated into widgetMouse- and widgetKey- and widgetWheel-events. Paint and Resize events are handled to keep rubberband and tracker up to date.
.PP
\fBSee also:\fP
.RS 4
event(), \fBwidgetMousePressEvent()\fP, \fBwidgetMouseReleaseEvent()\fP, \fBwidgetMouseDoubleClickEvent()\fP, \fBwidgetMouseMoveEvent()\fP, \fBwidgetWheelEvent()\fP, \fBwidgetKeyPressEvent()\fP, \fBwidgetKeyReleaseEvent()\fP 
.RE
.PP

.SS "void QwtEventPattern::initKeyPattern ()\fC [inherited]\fP"Set default mouse patterns.
.PP
\fBSee also:\fP
.RS 4
\fBKeyPatternCode\fP 
.RE
.PP

.SS "void QwtEventPattern::initMousePattern (intnumButtons)\fC [inherited]\fP"Set default mouse patterns, depending on the number of mouse buttons
.PP
\fBParameters:\fP
.RS 4
\fInumButtons\fP Number of mouse buttons ( <= 3 ) 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBMousePatternCode\fP 
.RE
.PP

.SS "QwtDoublePoint QwtPlotPicker::invTransform (const QPoint &pos) const\fC [protected]\fP"Translate a point from pixel into plot coordinates 
.PP
\fBReturns:\fP
.RS 4
Point in plot coordinates 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtPlotPicker::transform()\fP 
.RE
.PP

.SS "QwtDoubleRect QwtPlotPicker::invTransform (const QRect &rect) const\fC [protected]\fP"Translate a rectangle from pixel into plot coordinates
.PP
\fBReturns:\fP
.RS 4
Rectangle in plot coordinates 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtPlotPicker::transform()\fP 
.RE
.PP

.SS "bool QwtPicker::isActive () const\fC [inherited]\fP"A picker is active between \fBbegin()\fP and \fBend()\fP. 
.PP
\fBReturns:\fP
.RS 4
true if the selection is active. 
.RE
.PP

.SS "bool QwtPicker::isEnabled () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
true when enabled, false otherwise 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetEnabled()\fP, \fBeventFilter()\fP 
.RE
.PP

.SS "bool QwtEventPattern::keyMatch (uintpattern, const QKeyEvent *e) const\fC [inherited]\fP"
.PP
Compare a key event with an event pattern. A key event matches the pattern when both have the same key value and in the state value the same key flags (Qt::KeyButtonMask) are set.
.PP
\fBParameters:\fP
.RS 4
\fIpattern\fP Index of the event pattern 
.br
\fIe\fP Key event 
.RE
.PP
\fBReturns:\fP
.RS 4
true if matches
.RE
.PP
\fBSee also:\fP
.RS 4
\fBmouseMatch()\fP 
.RE
.PP

.SS "bool QwtEventPattern::keyMatch (const \fBKeyPattern\fP &pattern, const QKeyEvent *e) const\fC [protected, virtual, inherited]\fP"
.PP
Compare a key event with an event pattern. A key event matches the pattern when both have the same key value and in the state value the same key flags (Qt::KeyButtonMask) are set.
.PP
\fBParameters:\fP
.RS 4
\fIpattern\fP Key event pattern 
.br
\fIe\fP Key event 
.RE
.PP
\fBReturns:\fP
.RS 4
true if matches
.RE
.PP
\fBSee also:\fP
.RS 4
\fBmouseMatch()\fP 
.RE
.PP

.SS "const QwtArray< \fBQwtEventPattern::KeyPattern\fP > & QwtEventPattern::keyPattern () const\fC [inherited]\fP"
.PP
Return key patterns. 
.SS "QwtArray< \fBQwtEventPattern::KeyPattern\fP > & QwtEventPattern::keyPattern ()\fC [inherited]\fP"
.PP
Return Key patterns. 
.SS "bool QwtEventPattern::mouseMatch (const \fBMousePattern\fP &pattern, const QMouseEvent *e) const\fC [protected, virtual, inherited]\fP"
.PP
Compare a mouse event with an event pattern. A mouse event matches the pattern when both have the same button value and in the state value the same key flags(Qt::KeyButtonMask) are set.
.PP
\fBParameters:\fP
.RS 4
\fIpattern\fP Mouse event pattern 
.br
\fIe\fP Mouse event 
.RE
.PP
\fBReturns:\fP
.RS 4
true if matches
.RE
.PP
\fBSee also:\fP
.RS 4
\fBkeyMatch()\fP 
.RE
.PP

.SS "bool QwtEventPattern::mouseMatch (uintpattern, const QMouseEvent *e) const\fC [inherited]\fP"
.PP
Compare a mouse event with an event pattern. A mouse event matches the pattern when both have the same button value and in the state value the same key flags(Qt::KeyButtonMask) are set.
.PP
\fBParameters:\fP
.RS 4
\fIpattern\fP Index of the event pattern 
.br
\fIe\fP Mouse event 
.RE
.PP
\fBReturns:\fP
.RS 4
true if matches
.RE
.PP
\fBSee also:\fP
.RS 4
\fBkeyMatch()\fP 
.RE
.PP

.SS "const QwtArray< \fBQwtEventPattern::MousePattern\fP > & QwtEventPattern::mousePattern () const\fC [inherited]\fP"
.PP
Return mouse patterns. 
.SS "QwtArray< \fBQwtEventPattern::MousePattern\fP > & QwtEventPattern::mousePattern ()\fC [inherited]\fP"
.PP
Return ,ouse patterns. 
.SS "void QwtPlotPicker::move (const QPoint &pos)\fC [protected, virtual]\fP"Move the last point of the selection
.PP
\fBParameters:\fP
.RS 4
\fIpos\fP New position 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBisActive\fP, \fBbegin()\fP, \fBend()\fP, \fBappend()\fP
.RE
.PP
\fBNote:\fP
.RS 4
The \fBmoved(const QPoint &)\fP, moved(const QDoublePoint &) signals are emitted. 
.RE
.PP

.PP
Reimplemented from \fBQwtPicker\fP.
.SS "void QwtPlotPicker::moved (const QwtDoublePoint &pos)\fC [signal]\fP"A signal emitted whenever the last appended point of the selection has been moved.
.PP
\fBParameters:\fP
.RS 4
\fIpos\fP Position of the moved last point of the selection. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBmove()\fP, \fBappended()\fP 
.RE
.PP

.SS "void QwtPicker::moved (const QPoint &pos)\fC [signal, inherited]\fP"A signal emitted whenever the last appended point of the selection has been moved.
.PP
\fBParameters:\fP
.RS 4
\fIpos\fP Position of the moved last point of the selection. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBmove()\fP, \fBappended()\fP 
.RE
.PP

.SS "const QWidget * QwtPicker::parentWidget () const\fC [inherited]\fP"
.PP
Return the parent widget, where the selection happens. 
.SS "QWidget * QwtPicker::parentWidget ()\fC [inherited]\fP"
.PP
Return the parent widget, where the selection happens. 
.SS "QRect QwtPicker::pickRect () const\fC [virtual, inherited]\fP"Find the area of the observed widget, where selection might happen.
.PP
\fBReturns:\fP
.RS 4
QFrame::contentsRect() if it is a QFrame, QWidget::rect() otherwise. 
.RE
.PP

.SS "const \fBQwtPlot\fP * QwtPlotPicker::plot () const"
.PP
Return plot widget, containing the observed plot canvas. 
.SS "\fBQwtPlot\fP * QwtPlotPicker::plot ()"
.PP
Return plot widget, containing the observed plot canvas. 
.SS "void QwtPicker::reset ()\fC [protected, virtual, inherited]\fP"Reset the state machine and terminate (end(false)) the selection 
.SS "\fBQwtPicker::ResizeMode\fP QwtPicker::resizeMode () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
Resize mode 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetResizeMode()\fP, \fBResizeMode\fP 
.RE
.PP

.SS "\fBQwtPicker::RubberBand\fP QwtPicker::rubberBand () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
Rubberband style 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetRubberBand()\fP, \fBRubberBand\fP, \fBrubberBandPen()\fP 
.RE
.PP

.SS "QPen QwtPicker::rubberBandPen () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
Rubberband pen 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetRubberBandPen()\fP, \fBrubberBand()\fP 
.RE
.PP

.SS "const QWidget * QwtPicker::rubberBandWidget () const\fC [protected, inherited]\fP"\fBReturns:\fP
.RS 4
Widget displaying the rubberband 
.RE
.PP

.SS "QwtDoubleRect QwtPlotPicker::scaleRect () const\fC [protected]\fP"Return normalized bounding rect of the axes
.PP
\fBSee also:\fP
.RS 4
\fBQwtPlot::autoReplot()\fP, \fBQwtPlot::replot()\fP. 
.RE
.PP

.SS "void QwtPlotPicker::selected (const QwtDoublePoint &pos)\fC [signal]\fP"A signal emitted in case of \fBselectionFlags()\fP & PointSelection. 
.PP
\fBParameters:\fP
.RS 4
\fIpos\fP Selected point 
.RE
.PP

.SS "void QwtPlotPicker::selected (const QwtDoubleRect &rect)\fC [signal]\fP"A signal emitted in case of \fBselectionFlags()\fP & RectSelection. 
.PP
\fBParameters:\fP
.RS 4
\fIrect\fP Selected rectangle 
.RE
.PP

.SS "void QwtPlotPicker::selected (const QwtArray< QwtDoublePoint > &pa)\fC [signal]\fP"A signal emitting the selected points, at the end of a selection.
.PP
\fBParameters:\fP
.RS 4
\fIpa\fP Selected points 
.RE
.PP

.SS "void QwtPicker::selected (const QwtPolygon &pa)\fC [signal, inherited]\fP"A signal emitting the selected points, at the end of a selection.
.PP
\fBParameters:\fP
.RS 4
\fIpa\fP Selected points 
.RE
.PP

.SS "const QwtPolygon & QwtPicker::selection () const\fC [inherited]\fP"
.PP
Return Selected points. 
.SS "int QwtPicker::selectionFlags () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
Selection flags, an Or'd value of SelectionType, RectSelectionType and SelectionMode. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetSelectionFlags()\fP, \fBSelectionType\fP, \fBRectSelectionType\fP, \fBSelectionMode\fP 
.RE
.PP

.SS "void QwtPlotPicker::setAxis (intxAxis, intyAxis)\fC [virtual]\fP"Set the x and y axes of the picker
.PP
\fBParameters:\fP
.RS 4
\fIxAxis\fP X axis 
.br
\fIyAxis\fP Y axis 
.RE
.PP

.PP
Reimplemented in \fBQwtPlotZoomer\fP.
.SS "void QwtPicker::setEnabled (boolenabled)\fC [virtual, inherited]\fP"
.PP
En/disable the picker. When enabled is true an event filter is installed for the observed widget, otherwise the event filter is removed.
.PP
\fBParameters:\fP
.RS 4
\fIenabled\fP true or false 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBisEnabled()\fP, \fBeventFilter()\fP 
.RE
.PP

.SS "void QwtEventPattern::setKeyPattern (uintpattern, intkey, intstate = \fCQt::NoButton\fP)\fC [inherited]\fP"Change one key pattern
.PP
\fBParameters:\fP
.RS 4
\fIpattern\fP Index of the pattern 
.br
\fIkey\fP Key 
.br
\fIstate\fP State
.RE
.PP
\fBSee also:\fP
.RS 4
QKeyEvent 
.RE
.PP

.SS "void QwtEventPattern::setKeyPattern (const QwtArray< \fBKeyPattern\fP > &pattern)\fC [inherited]\fP"
.PP
Change the key event patterns. 
.SS "void QwtEventPattern::setMousePattern (const QwtArray< \fBMousePattern\fP > &pattern)\fC [inherited]\fP"
.PP
Change the mouse event patterns. 
.SS "void QwtEventPattern::setMousePattern (uintpattern, intbutton, intstate = \fCQt::NoButton\fP)\fC [inherited]\fP"Change one mouse pattern
.PP
\fBParameters:\fP
.RS 4
\fIpattern\fP Index of the pattern 
.br
\fIbutton\fP Button 
.br
\fIstate\fP State
.RE
.PP
\fBSee also:\fP
.RS 4
QMouseEvent 
.RE
.PP

.SS "void QwtPicker::setResizeMode (\fBResizeMode\fPmode)\fC [virtual, inherited]\fP"
.PP
Set the resize mode. The resize mode controls what to do with the selected points of an active selection when the observed widget is resized.
.PP
Stretch means the points are scaled according to the new size, KeepSize means the points remain unchanged.
.PP
The default mode is Stretch.
.PP
\fBParameters:\fP
.RS 4
\fImode\fP Resize mode 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBresizeMode()\fP, \fBResizeMode\fP 
.RE
.PP

.SS "void QwtPicker::setRubberBand (\fBRubberBand\fPrubberBand)\fC [virtual, inherited]\fP"Set the rubberband style
.PP
\fBParameters:\fP
.RS 4
\fIrubberBand\fP Rubberband style The default value is NoRubberBand.
.RE
.PP
\fBSee also:\fP
.RS 4
\fBrubberBand()\fP, \fBRubberBand\fP, \fBsetRubberBandPen()\fP 
.RE
.PP

.SS "void QwtPicker::setRubberBandPen (const QPen &pen)\fC [virtual, inherited]\fP"Set the pen for the rubberband
.PP
\fBParameters:\fP
.RS 4
\fIpen\fP Rubberband pen 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBrubberBandPen()\fP, \fBsetRubberBand()\fP 
.RE
.PP

.SS "void QwtPicker::setSelectionFlags (intflags)\fC [virtual, inherited]\fP"Set the selection flags
.PP
\fBParameters:\fP
.RS 4
\fIflags\fP Or'd value of SelectionType, RectSelectionType and SelectionMode. The default value is NoSelection.
.RE
.PP
\fBSee also:\fP
.RS 4
\fBselectionFlags()\fP, \fBSelectionType\fP, \fBRectSelectionType\fP, \fBSelectionMode\fP 
.RE
.PP

.PP
Reimplemented in \fBQwtPlotZoomer\fP.
.SS "void QwtPicker::setTrackerFont (const QFont &font)\fC [virtual, inherited]\fP"Set the font for the tracker
.PP
\fBParameters:\fP
.RS 4
\fIfont\fP Tracker font 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBtrackerFont()\fP, \fBsetTrackerMode()\fP, \fBsetTrackerPen()\fP 
.RE
.PP

.SS "void QwtPicker::setTrackerMode (\fBDisplayMode\fPmode)\fC [virtual, inherited]\fP"
.PP
Set the display mode of the tracker. A tracker displays information about current position of the cursor as a string. The display mode controls if the tracker has to be displayed whenever the observed widget has focus and cursor (AlwaysOn), never (AlwaysOff), or only when the selection is active (ActiveOnly).
.PP
\fBParameters:\fP
.RS 4
\fImode\fP Tracker display mode
.RE
.PP
\fBWarning:\fP
.RS 4
In case of AlwaysOn, mouseTracking will be enabled for the observed widget. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBtrackerMode()\fP, \fBDisplayMode\fP 
.RE
.PP

.SS "void QwtPicker::setTrackerPen (const QPen &pen)\fC [virtual, inherited]\fP"Set the pen for the tracker
.PP
\fBParameters:\fP
.RS 4
\fIpen\fP Tracker pen 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBtrackerPen()\fP, \fBsetTrackerMode()\fP, \fBsetTrackerFont()\fP 
.RE
.PP

.SS "\fBQwtPickerMachine\fP * QwtPicker::stateMachine (intflags) const\fC [protected, virtual, inherited]\fP"Create a state machine depending on the selection flags.
.PP
.IP "\(bu" 2
PointSelection | ClickSelection
.br
 QwtPickerClickPointMachine()
.IP "\(bu" 2
PointSelection | DragSelection
.br
 QwtPickerDragPointMachine()
.IP "\(bu" 2
RectSelection | ClickSelection
.br
 QwtPickerClickRectMachine()
.IP "\(bu" 2
RectSelection | DragSelection
.br
 QwtPickerDragRectMachine()
.IP "\(bu" 2
PolygonSelection
.br
 QwtPickerPolygonMachine()
.PP
.PP
\fBSee also:\fP
.RS 4
\fBsetSelectionFlags()\fP 
.RE
.PP

.SS "void QwtPicker::stretchSelection (const QSize &oldSize, const QSize &newSize)\fC [protected, virtual, inherited]\fP"Scale the selection by the ratios of oldSize and newSize The \fBchanged()\fP signal is emitted.
.PP
\fBParameters:\fP
.RS 4
\fIoldSize\fP Previous size 
.br
\fInewSize\fP Current size
.RE
.PP
\fBSee also:\fP
.RS 4
\fBResizeMode\fP, \fBsetResizeMode()\fP, \fBresizeMode()\fP 
.RE
.PP

.SS "QFont QwtPicker::trackerFont () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
Tracker font 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetTrackerFont()\fP, \fBtrackerMode()\fP, \fBtrackerPen()\fP 
.RE
.PP

.SS "\fBQwtPicker::DisplayMode\fP QwtPicker::trackerMode () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
Tracker display mode 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetTrackerMode()\fP, \fBDisplayMode\fP 
.RE
.PP

.SS "QPen QwtPicker::trackerPen () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
Tracker pen 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetTrackerPen()\fP, \fBtrackerMode()\fP, \fBtrackerFont()\fP 
.RE
.PP

.SS "QPoint QwtPicker::trackerPosition () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
Current position of the tracker 
.RE
.PP

.SS "QRect QwtPicker::trackerRect (const QFont &font) const\fC [inherited]\fP"Calculate the bounding rectangle for the tracker text from the current position of the tracker
.PP
\fBParameters:\fP
.RS 4
\fIfont\fP Font of the tracker text 
.RE
.PP
\fBReturns:\fP
.RS 4
Bounding rectangle of the tracker text
.RE
.PP
\fBSee also:\fP
.RS 4
\fBtrackerPosition()\fP 
.RE
.PP

.SS "\fBQwtText\fP QwtPlotPicker::trackerText (const QwtDoublePoint &pos) const\fC [protected, virtual]\fP"
.PP
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 ',' .
.PP
The format for the double to string conversion is '%.4f'.
.PP
\fBParameters:\fP
.RS 4
\fIpos\fP Position 
.RE
.PP
\fBReturns:\fP
.RS 4
Position string 
.RE
.PP

.SS "\fBQwtText\fP QwtPlotPicker::trackerText (const QPoint &pos) const\fC [protected, virtual]\fP"Translate a pixel position into a position string
.PP
\fBParameters:\fP
.RS 4
\fIpos\fP Position in pixel coordinates 
.RE
.PP
\fBReturns:\fP
.RS 4
Position string 
.RE
.PP

.PP
Reimplemented from \fBQwtPicker\fP.
.SS "const QWidget * QwtPicker::trackerWidget () const\fC [protected, inherited]\fP"\fBReturns:\fP
.RS 4
Widget displaying the tracker text 
.RE
.PP

.SS "QPoint QwtPlotPicker::transform (const QwtDoublePoint &pos) const\fC [protected]\fP"Translate a point from plot into pixel coordinates 
.PP
\fBReturns:\fP
.RS 4
Point in pixel coordinates 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtPlotPicker::invTransform()\fP 
.RE
.PP

.SS "QRect QwtPlotPicker::transform (const QwtDoubleRect &rect) const\fC [protected]\fP"Translate a rectangle from plot into pixel coordinates 
.PP
\fBReturns:\fP
.RS 4
Rectangle in pixel coordinates 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtPlotPicker::invTransform()\fP 
.RE
.PP

.SS "void QwtPicker::transition (const QEvent *e)\fC [protected, virtual, inherited]\fP"Passes an event to the state machine and executes the resulting commands. Append and Move commands use the current position of the cursor (QCursor::pos()).
.PP
\fBParameters:\fP
.RS 4
\fIe\fP Event 
.RE
.PP

.SS "void QwtPicker::updateDisplay ()\fC [protected, virtual, inherited]\fP"
.PP
Update the state of rubberband and tracker label. 
.SS "void QwtPicker::widgetKeyPressEvent (QKeyEvent *ke)\fC [protected, virtual, inherited]\fP"Handle a key press event for the observed widget.
.PP
Selections can be completely done by the keyboard. The arrow keys move the cursor, the abort key aborts a selection. All other keys are handled by the current state machine.
.PP
\fBSee also:\fP
.RS 4
\fBQwtPicker\fP, \fBselectionFlags()\fP 
.PP
\fBeventFilter()\fP, \fBwidgetMousePressEvent()\fP, \fBwidgetMouseReleaseEvent()\fP, \fBwidgetMouseDoubleClickEvent()\fP, \fBwidgetMouseMoveEvent()\fP, \fBwidgetWheelEvent()\fP, \fBwidgetKeyReleaseEvent()\fP, \fBstateMachine()\fP, \fBQwtEventPattern::KeyPatternCode\fP 
.RE
.PP

.PP
Reimplemented in \fBQwtPlotZoomer\fP.
.SS "void QwtPicker::widgetKeyReleaseEvent (QKeyEvent *ke)\fC [protected, virtual, inherited]\fP"Handle a key release event for the observed widget.
.PP
Passes the event to the state machine.
.PP
\fBSee also:\fP
.RS 4
\fBeventFilter()\fP, \fBwidgetMousePressEvent()\fP, \fBwidgetMouseReleaseEvent()\fP, \fBwidgetMouseDoubleClickEvent()\fP, \fBwidgetMouseMoveEvent()\fP, \fBwidgetWheelEvent()\fP, \fBwidgetKeyPressEvent()\fP, \fBstateMachine()\fP 
.RE
.PP

.SS "void QwtPicker::widgetLeaveEvent (QEvent *)\fC [protected, virtual, inherited]\fP"Handle a leave event for the observed widget.
.PP
\fBSee also:\fP
.RS 4
\fBeventFilter()\fP, \fBwidgetMousePressEvent()\fP, \fBwidgetMouseReleaseEvent()\fP, \fBwidgetMouseDoubleClickEvent()\fP, \fBwidgetWheelEvent()\fP, \fBwidgetKeyPressEvent()\fP, \fBwidgetKeyReleaseEvent()\fP 
.RE
.PP

.SS "void QwtPicker::widgetMouseDoubleClickEvent (QMouseEvent *me)\fC [protected, virtual, inherited]\fP"Handle mouse double click event for the observed widget.
.PP
Empty implementation, does nothing.
.PP
\fBSee also:\fP
.RS 4
\fBeventFilter()\fP, \fBwidgetMousePressEvent()\fP, \fBwidgetMouseReleaseEvent()\fP, \fBwidgetMouseMoveEvent()\fP, \fBwidgetWheelEvent()\fP, \fBwidgetKeyPressEvent()\fP, \fBwidgetKeyReleaseEvent()\fP 
.RE
.PP

.SS "void QwtPicker::widgetMouseMoveEvent (QMouseEvent *e)\fC [protected, virtual, inherited]\fP"Handle a mouse move event for the observed widget.
.PP
Move the last point of the selection in case of \fBisActive()\fP == true
.PP
\fBSee also:\fP
.RS 4
\fBeventFilter()\fP, \fBwidgetMousePressEvent()\fP, \fBwidgetMouseReleaseEvent()\fP, \fBwidgetMouseDoubleClickEvent()\fP, \fBwidgetWheelEvent()\fP, \fBwidgetKeyPressEvent()\fP, \fBwidgetKeyReleaseEvent()\fP 
.RE
.PP

.SS "void QwtPicker::widgetMousePressEvent (QMouseEvent *e)\fC [protected, virtual, inherited]\fP"Handle a mouse press event for the observed widget.
.PP
Begin and/or end a selection depending on the selection flags.
.PP
\fBSee also:\fP
.RS 4
\fBQwtPicker\fP, \fBselectionFlags()\fP 
.PP
\fBeventFilter()\fP, \fBwidgetMouseReleaseEvent()\fP, \fBwidgetMouseDoubleClickEvent()\fP, \fBwidgetMouseMoveEvent()\fP, \fBwidgetWheelEvent()\fP, \fBwidgetKeyPressEvent()\fP, \fBwidgetKeyReleaseEvent()\fP 
.RE
.PP

.SS "void QwtPicker::widgetMouseReleaseEvent (QMouseEvent *e)\fC [protected, virtual, inherited]\fP"Handle a mouse relase event for the observed widget.
.PP
End a selection depending on the selection flags.
.PP
\fBSee also:\fP
.RS 4
\fBQwtPicker\fP, \fBselectionFlags()\fP 
.PP
\fBeventFilter()\fP, \fBwidgetMousePressEvent()\fP, \fBwidgetMouseDoubleClickEvent()\fP, \fBwidgetMouseMoveEvent()\fP, \fBwidgetWheelEvent()\fP, \fBwidgetKeyPressEvent()\fP, \fBwidgetKeyReleaseEvent()\fP 
.RE
.PP

.PP
Reimplemented in \fBQwtPlotZoomer\fP.
.SS "void QwtPicker::widgetWheelEvent (QWheelEvent *e)\fC [protected, virtual, inherited]\fP"Handle a wheel event for the observed widget.
.PP
Move the last point of the selection in case of \fBisActive()\fP == true
.PP
\fBSee also:\fP
.RS 4
\fBeventFilter()\fP, \fBwidgetMousePressEvent()\fP, \fBwidgetMouseReleaseEvent()\fP, \fBwidgetMouseDoubleClickEvent()\fP, \fBwidgetMouseMoveEvent()\fP, \fBwidgetKeyPressEvent()\fP, \fBwidgetKeyReleaseEvent()\fP 
.RE
.PP

.SS "int QwtPlotPicker::xAxis () const"
.PP
Return x axis. 
.SS "int QwtPlotPicker::yAxis () const"
.PP
Return y axis. 

.SH "Author"
.PP 
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