mirror of
https://github.com/slsdetectorgroup/slsDetectorPackage.git
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38cd10d4e6
- qt4->qt5 - in built qt5 6.1.5 because rhel7 is not upto date with qt5, removed findqwt.cmake - made a fix in qwt lib (qwt_plot_layout.h) to work with 5.15 and lower versions for qrect constr. - qt5 forms fixed, qt4 many hard coding forms switched to forms including qtabwidget, scrolls etc, fonts moved to forms - docking option enabled by default, removed option to disable docking feature from "Mode" - added qVersionResolve utility functions to handle compatibility before and after qt5.12 - qtplots (ian's code) takes in gain mode enable to set some settings within the class, with proper gain plot ticks - ensure gain plots have no zooming of z axis in 2d and y axis in 1d - removed placeholder text in qpalette in main window form as its not supportd until 5.12 (so using qt5.9 designer insted of qt5.15 to cope) - tab order Servers: - fixed some error messages that were empty for fail in funcs (mostly minor as if this error, major issues)
1250 lines
29 KiB
Groff
1250 lines
29 KiB
Groff
.TH "QwtPicker" 3 "Mon Jun 1 2020" "Version 6.1.5" "Qwt User's Guide" \" -*- nroff -*-
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.ad l
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.nh
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.SH NAME
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QwtPicker \- \fBQwtPicker\fP provides selections on a widget\&.
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.SH SYNOPSIS
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.br
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.PP
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.PP
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\fC#include <qwt_picker\&.h>\fP
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.PP
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Inherits QObject, and \fBQwtEventPattern\fP\&.
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.PP
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Inherited by \fBQwtPlotPicker\fP\&.
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.SS "Public Types"
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.in +1c
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.ti -1c
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.RI "enum \fBRubberBand\fP { \fBNoRubberBand\fP = 0, \fBHLineRubberBand\fP, \fBVLineRubberBand\fP, \fBCrossRubberBand\fP, \fBRectRubberBand\fP, \fBEllipseRubberBand\fP, \fBPolygonRubberBand\fP, \fBUserRubberBand\fP = 100 }"
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.br
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.ti -1c
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.RI "enum \fBDisplayMode\fP { \fBAlwaysOff\fP, \fBAlwaysOn\fP, \fBActiveOnly\fP }"
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.br
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.RI "Display mode\&. "
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.ti -1c
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.RI "enum \fBResizeMode\fP { \fBStretch\fP, \fBKeepSize\fP }"
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.br
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.in -1c
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.SS "Public Slots"
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.in +1c
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.ti -1c
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.RI "void \fBsetEnabled\fP (bool)"
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.br
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.RI "En/disable the picker\&. "
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.in -1c
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.SS "Signals"
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.in +1c
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.ti -1c
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.RI "void \fBactivated\fP (bool on)"
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.br
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.ti -1c
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.RI "void \fBselected\fP (const QPolygon &polygon)"
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.br
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.ti -1c
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.RI "void \fBappended\fP (const QPoint &pos)"
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.br
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.ti -1c
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.RI "void \fBmoved\fP (const QPoint &pos)"
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.br
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.ti -1c
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.RI "void \fBremoved\fP (const QPoint &pos)"
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.br
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.ti -1c
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.RI "void \fBchanged\fP (const QPolygon &\fBselection\fP)"
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.br
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.in -1c
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.SS "Public Member Functions"
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.in +1c
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.ti -1c
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.RI "\fBQwtPicker\fP (QWidget *parent)"
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.br
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.ti -1c
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.RI "\fBQwtPicker\fP (\fBRubberBand\fP \fBrubberBand\fP, \fBDisplayMode\fP \fBtrackerMode\fP, QWidget *)"
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.br
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.ti -1c
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.RI "virtual \fB~QwtPicker\fP ()"
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.br
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.RI "Destructor\&. "
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.ti -1c
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.RI "void \fBsetStateMachine\fP (\fBQwtPickerMachine\fP *)"
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.br
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.ti -1c
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.RI "const \fBQwtPickerMachine\fP * \fBstateMachine\fP () const"
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.br
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.ti -1c
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.RI "\fBQwtPickerMachine\fP * \fBstateMachine\fP ()"
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.br
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.ti -1c
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.RI "void \fBsetRubberBand\fP (\fBRubberBand\fP)"
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.br
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.ti -1c
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.RI "\fBRubberBand\fP \fBrubberBand\fP () const"
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.br
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.ti -1c
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.RI "void \fBsetTrackerMode\fP (\fBDisplayMode\fP)"
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.br
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.RI "Set the display mode of the tracker\&. "
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.ti -1c
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.RI "\fBDisplayMode\fP \fBtrackerMode\fP () const"
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.br
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.ti -1c
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.RI "void \fBsetResizeMode\fP (\fBResizeMode\fP)"
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.br
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.RI "Set the resize mode\&. "
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.ti -1c
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.RI "\fBResizeMode\fP \fBresizeMode\fP () const"
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.br
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.ti -1c
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.RI "void \fBsetRubberBandPen\fP (const QPen &)"
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.br
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.ti -1c
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.RI "QPen \fBrubberBandPen\fP () const"
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.br
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.ti -1c
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.RI "void \fBsetTrackerPen\fP (const QPen &)"
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.br
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.ti -1c
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.RI "QPen \fBtrackerPen\fP () const"
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.br
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.ti -1c
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.RI "void \fBsetTrackerFont\fP (const QFont &)"
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.br
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.ti -1c
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.RI "QFont \fBtrackerFont\fP () const"
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.br
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.ti -1c
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.RI "bool \fBisEnabled\fP () const"
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.br
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.ti -1c
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.RI "bool \fBisActive\fP () const"
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.br
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.ti -1c
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.RI "virtual bool \fBeventFilter\fP (QObject *, QEvent *)"
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.br
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.RI "Event filter\&. "
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.ti -1c
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.RI "QWidget * \fBparentWidget\fP ()"
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.br
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.RI "Return the parent widget, where the selection happens\&. "
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.ti -1c
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.RI "const QWidget * \fBparentWidget\fP () const"
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.br
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.RI "Return the parent widget, where the selection happens\&. "
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.ti -1c
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.RI "virtual QPainterPath \fBpickArea\fP () const"
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.br
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.ti -1c
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.RI "virtual void \fBdrawRubberBand\fP (QPainter *) const"
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.br
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.ti -1c
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.RI "virtual void \fBdrawTracker\fP (QPainter *) const"
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.br
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.ti -1c
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.RI "virtual QRegion \fBrubberBandMask\fP () const"
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.br
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.ti -1c
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.RI "virtual \fBQwtText\fP \fBtrackerText\fP (const QPoint &pos) const"
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.br
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.RI "Return the label for a position\&. "
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.ti -1c
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.RI "QPoint \fBtrackerPosition\fP () const"
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.br
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.ti -1c
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.RI "virtual QRect \fBtrackerRect\fP (const QFont &) const"
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.br
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.ti -1c
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.RI "QPolygon \fBselection\fP () const"
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.br
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.in -1c
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.SS "Protected Member Functions"
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.in +1c
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.ti -1c
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.RI "virtual QPolygon \fBadjustedPoints\fP (const QPolygon &) const"
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.br
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.RI "Map the \fBpickedPoints()\fP into a \fBselection()\fP "
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.ti -1c
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.RI "virtual void \fBtransition\fP (const QEvent *)"
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.br
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.ti -1c
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.RI "virtual void \fBbegin\fP ()"
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.br
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.ti -1c
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.RI "virtual void \fBappend\fP (const QPoint &)"
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.br
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.ti -1c
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.RI "virtual void \fBmove\fP (const QPoint &)"
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.br
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.ti -1c
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.RI "virtual void \fBremove\fP ()"
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.br
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.ti -1c
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.RI "virtual bool \fBend\fP (bool ok=true)"
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.br
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.RI "Close a selection setting the state to inactive\&. "
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.ti -1c
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.RI "virtual bool \fBaccept\fP (QPolygon &) const"
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.br
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.RI "Validate and fix up the selection\&. "
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.ti -1c
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.RI "virtual void \fBreset\fP ()"
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.br
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.ti -1c
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.RI "virtual void \fBwidgetMousePressEvent\fP (QMouseEvent *)"
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.br
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.ti -1c
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.RI "virtual void \fBwidgetMouseReleaseEvent\fP (QMouseEvent *)"
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.br
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.ti -1c
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.RI "virtual void \fBwidgetMouseDoubleClickEvent\fP (QMouseEvent *)"
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.br
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.ti -1c
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.RI "virtual void \fBwidgetMouseMoveEvent\fP (QMouseEvent *)"
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.br
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.ti -1c
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.RI "virtual void \fBwidgetWheelEvent\fP (QWheelEvent *)"
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.br
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.ti -1c
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.RI "virtual void \fBwidgetKeyPressEvent\fP (QKeyEvent *)"
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.br
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.ti -1c
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.RI "virtual void \fBwidgetKeyReleaseEvent\fP (QKeyEvent *)"
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.br
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.ti -1c
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.RI "virtual void \fBwidgetEnterEvent\fP (QEvent *)"
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.br
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.ti -1c
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.RI "virtual void \fBwidgetLeaveEvent\fP (QEvent *)"
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.br
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.ti -1c
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.RI "virtual void \fBstretchSelection\fP (const QSize &oldSize, const QSize &newSize)"
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.br
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.ti -1c
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.RI "virtual void \fBupdateDisplay\fP ()"
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.br
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.RI "Update the state of rubber band and tracker label\&. "
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.ti -1c
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.RI "const \fBQwtWidgetOverlay\fP * \fBrubberBandOverlay\fP () const"
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.br
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.ti -1c
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.RI "const \fBQwtWidgetOverlay\fP * \fBtrackerOverlay\fP () const"
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.br
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.ti -1c
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.RI "const QPolygon & \fBpickedPoints\fP () const"
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.br
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.in -1c
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.SH "Detailed Description"
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.PP
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\fBQwtPicker\fP provides selections on a widget\&.
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\fBQwtPicker\fP filters all enter, leave, mouse and keyboard events of a widget and translates them into an array of selected points\&.
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.PP
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The way how the points are collected depends on type of state machine that is connected to the picker\&. Qwt offers a couple of predefined state machines for selecting:
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.PP
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.IP "\(bu" 2
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Nothing
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.br
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\fBQwtPickerTrackerMachine\fP
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.IP "\(bu" 2
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Single points
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.br
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\fBQwtPickerClickPointMachine\fP, \fBQwtPickerDragPointMachine\fP
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.IP "\(bu" 2
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Rectangles
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.br
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\fBQwtPickerClickRectMachine\fP, \fBQwtPickerDragRectMachine\fP
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.IP "\(bu" 2
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Polygons
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.br
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\fBQwtPickerPolygonMachine\fP
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.PP
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.PP
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While these state machines cover the most common ways to collect points it is also possible to implement individual machines as well\&.
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.PP
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\fBQwtPicker\fP translates the picked points into a selection using the \fBadjustedPoints()\fP method\&. \fBadjustedPoints()\fP is intended to be reimplemented to fix up the selection according to application specific requirements\&. (F\&.e\&. when an application accepts rectangles of a fixed aspect ratio only\&.)
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.PP
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Optionally \fBQwtPicker\fP support the process of collecting points by a rubber band and tracker displaying a text for the current mouse position\&.
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.PP
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\fBExample\fP
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.RS 4
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.PP
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.nf
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#include <qwt_picker\&.h>
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#include <qwt_picker_machine\&.h>
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QwtPicker *picker = new QwtPicker(widget);
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picker->setStateMachine(new QwtPickerDragRectMachine);
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picker->setTrackerMode(QwtPicker::ActiveOnly);
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picker->setRubberBand(QwtPicker::RectRubberBand);
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.fi
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.PP
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\\endpar
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.RE
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.PP
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The state machine triggers the following commands:
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.PP
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.IP "\(bu" 2
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\fBbegin()\fP
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.br
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Activate/Initialize the selection\&.
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.IP "\(bu" 2
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\fBappend()\fP
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.br
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Add a new point
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.IP "\(bu" 2
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\fBmove()\fP
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.br
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Change the position of the last point\&.
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.IP "\(bu" 2
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\fBremove()\fP
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.br
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Remove the last point\&.
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.IP "\(bu" 2
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\fBend()\fP
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.br
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Terminate the selection and call accept to validate the picked points\&.
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.PP
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.PP
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The picker is active (\fBisActive()\fP), between \fBbegin()\fP and \fBend()\fP\&. In active state the rubber band is displayed, and the tracker is visible in case of trackerMode is ActiveOnly or AlwaysOn\&.
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.PP
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The cursor can be moved using the arrow keys\&. All selections can be aborted using the abort key\&. (\fBQwtEventPattern::KeyPatternCode\fP)
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.PP
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\fBWarning\fP
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.RS 4
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In case of QWidget::NoFocus the focus policy of the observed widget is set to QWidget::WheelFocus and mouse tracking will be manipulated while the picker is active, or if \fBtrackerMode()\fP is AlwayOn\&.
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.RE
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.PP
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.SH "Member Enumeration Documentation"
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.PP
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.SS "enum \fBQwtPicker::DisplayMode\fP"
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.PP
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Display mode\&.
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.PP
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\fBSee also\fP
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.RS 4
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\fBsetTrackerMode()\fP, \fBtrackerMode()\fP, \fBisActive()\fP
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.RE
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.PP
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.PP
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\fBEnumerator\fP
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.in +1c
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.TP
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\fB\fIAlwaysOff \fP\fP
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Display never\&.
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.TP
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\fB\fIAlwaysOn \fP\fP
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Display always\&.
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.TP
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\fB\fIActiveOnly \fP\fP
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Display only when the selection is active\&.
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.SS "enum \fBQwtPicker::ResizeMode\fP"
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Controls what to do with the selected points of an active selection when the observed widget is resized\&.
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.PP
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The default value is \fBQwtPicker::Stretch\fP\&.
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.PP
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\fBSee also\fP
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.RS 4
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\fBsetResizeMode()\fP
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.RE
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.PP
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.PP
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\fBEnumerator\fP
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.in +1c
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.TP
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\fB\fIStretch \fP\fP
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All points are scaled according to the new size,\&.
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.TP
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\fB\fIKeepSize \fP\fP
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All points remain unchanged\&.
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.SS "enum \fBQwtPicker::RubberBand\fP"
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Rubber band style
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.PP
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The default value is \fBQwtPicker::NoRubberBand\fP\&.
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.PP
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\fBSee also\fP
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.RS 4
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\fBsetRubberBand()\fP, \fBrubberBand()\fP
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.RE
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.PP
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.PP
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\fBEnumerator\fP
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.in +1c
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.TP
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\fB\fINoRubberBand \fP\fP
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No rubberband\&.
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.TP
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\fB\fIHLineRubberBand \fP\fP
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A horizontal line ( only for \fBQwtPickerMachine::PointSelection\fP )
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.TP
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\fB\fIVLineRubberBand \fP\fP
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A vertical line ( only for \fBQwtPickerMachine::PointSelection\fP )
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.TP
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\fB\fICrossRubberBand \fP\fP
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A crosshair ( only for \fBQwtPickerMachine::PointSelection\fP )
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.TP
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\fB\fIRectRubberBand \fP\fP
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A rectangle ( only for \fBQwtPickerMachine::RectSelection\fP )
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.TP
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\fB\fIEllipseRubberBand \fP\fP
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An ellipse ( only for \fBQwtPickerMachine::RectSelection\fP )
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.TP
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\fB\fIPolygonRubberBand \fP\fP
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A polygon ( only for \fBQwtPickerMachine::PolygonSelection\fP )
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.TP
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\fB\fIUserRubberBand \fP\fP
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Values >= UserRubberBand can be used to define additional rubber bands\&.
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.SH "Constructor & Destructor Documentation"
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.PP
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.SS "QwtPicker::QwtPicker (QWidget * parent)\fC [explicit]\fP"
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Constructor
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.PP
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Creates an picker that is enabled, but without a state machine\&. rubber band and tracker are disabled\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIparent\fP Parent widget, that will be observed
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.RE
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.PP
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.SS "QwtPicker::QwtPicker (\fBRubberBand\fP rubberBand, \fBDisplayMode\fP trackerMode, QWidget * parent)\fC [explicit]\fP"
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Constructor
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.PP
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\fBParameters\fP
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.RS 4
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\fIrubberBand\fP Rubber band style
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.br
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\fItrackerMode\fP Tracker mode
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.br
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\fIparent\fP Parent widget, that will be observed
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.RE
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.PP
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.SH "Member Function Documentation"
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.PP
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.SS "bool QwtPicker::accept (QPolygon & selection) const\fC [protected]\fP, \fC [virtual]\fP"
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.PP
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Validate and fix up the selection\&. Accepts all selections unmodified
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.PP
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\fBParameters\fP
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.RS 4
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\fIselection\fP Selection to validate and fix up
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.RE
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.PP
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\fBReturns\fP
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.RS 4
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true, when accepted, false otherwise
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.RE
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.PP
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.PP
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Reimplemented in \fBQwtPlotZoomer\fP\&.
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.SS "void QwtPicker::activated (bool on)\fC [signal]\fP"
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A signal indicating, when the picker has been activated\&. Together with \fBsetEnabled()\fP it can be used to implement selections with more than one picker\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIon\fP True, when the picker has been activated
|
|
.RE
|
|
.PP
|
|
|
|
.SS "QPolygon QwtPicker::adjustedPoints (const QPolygon & points) const\fC [protected]\fP, \fC [virtual]\fP"
|
|
|
|
.PP
|
|
Map the \fBpickedPoints()\fP into a \fBselection()\fP \fBadjustedPoints()\fP maps the points, that have been collected on the \fBparentWidget()\fP into a \fBselection()\fP\&. The default implementation simply returns the points unmodified\&.
|
|
.PP
|
|
The reason, why a \fBselection()\fP differs from the picked points depends on the application requirements\&. F\&.e\&. :
|
|
.PP
|
|
.IP "\(bu" 2
|
|
A rectangular selection might need to have a specific aspect ratio only\&.
|
|
.IP "\(bu" 2
|
|
A selection could accept non intersecting polygons only\&.
|
|
.IP "\(bu" 2
|
|
\&.\&.\&.
|
|
.PP
|
|
.PP
|
|
The example below is for a rectangular selection, where the first point is the center of the selected rectangle\&.
|
|
.PP
|
|
\fBExample\fP
|
|
.RS 4
|
|
|
|
.PP
|
|
.nf
|
|
QPolygon MyPicker::adjustedPoints( const QPolygon &points ) const
|
|
{
|
|
QPolygon adjusted;
|
|
if ( points\&.size() == 2 )
|
|
{
|
|
const int width = qAbs( points[1]\&.x() - points[0]\&.x() );
|
|
const int height = qAbs( points[1]\&.y() - points[0]\&.y() );
|
|
|
|
QRect rect( 0, 0, 2 * width, 2 * height );
|
|
rect\&.moveCenter( points[0] );
|
|
|
|
adjusted += rect\&.topLeft();
|
|
adjusted += rect\&.bottomRight();
|
|
}
|
|
return adjusted;
|
|
}
|
|
|
|
.fi
|
|
.PP
|
|
\\endpar
|
|
.RE
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIpoints\fP Selected points
|
|
.RE
|
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.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
Selected points unmodified
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::append (const QPoint & pos)\fC [protected]\fP, \fC [virtual]\fP"
|
|
Append a point to the selection and update rubber band and tracker\&. The \fBappended()\fP signal is emitted\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIpos\fP Additional point
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
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\fBisActive()\fP, \fBbegin()\fP, \fBend()\fP, \fBmove()\fP, \fBappended()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.PP
|
|
Reimplemented in \fBQwtPlotPicker\fP\&.
|
|
.SS "void QwtPicker::appended (const QPoint & 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::begin ()\fC [protected]\fP, \fC [virtual]\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 "void QwtPicker::changed (const QPolygon & selection)\fC [signal]\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
|
|
\fIselection\fP Changed selection
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBstretchSelection()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::drawRubberBand (QPainter * painter) const\fC [virtual]\fP"
|
|
Draw a rubber band, depending on \fBrubberBand()\fP
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIpainter\fP Painter, initialized with a clip region
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBrubberBand()\fP, \fBRubberBand\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::drawTracker (QPainter * painter) const\fC [virtual]\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 QwtPicker::end (bool ok = \fCtrue\fP)\fC [protected]\fP, \fC [virtual]\fP"
|
|
|
|
.PP
|
|
Close a selection setting the state to inactive\&. The selection is validated and maybe fixed by \fBaccept()\fP\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIok\fP If true, complete the selection and emit a selected signal otherwise discard the selection\&.
|
|
.RE
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
true if the selection is accepted, false otherwise
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBisActive()\fP, \fBbegin()\fP, \fBappend()\fP, \fBmove()\fP, \fBselected()\fP, \fBaccept()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.PP
|
|
Reimplemented in \fBQwtPlotZoomer\fP, and \fBQwtPlotPicker\fP\&.
|
|
.SS "bool QwtPicker::eventFilter (QObject * object, QEvent * event)\fC [virtual]\fP"
|
|
|
|
.PP
|
|
Event filter\&. When \fBisEnabled()\fP is 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 rubber band and tracker up to date\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIobject\fP Object to be filtered
|
|
.br
|
|
\fIevent\fP Event
|
|
.RE
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
Always false\&.
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBwidgetEnterEvent()\fP, \fBwidgetLeaveEvent()\fP, \fBwidgetMousePressEvent()\fP, \fBwidgetMouseReleaseEvent()\fP, \fBwidgetMouseDoubleClickEvent()\fP, \fBwidgetMouseMoveEvent()\fP, \fBwidgetWheelEvent()\fP, \fBwidgetKeyPressEvent()\fP, \fBwidgetKeyReleaseEvent()\fP, QObject::installEventFilter(), QObject::event()
|
|
.RE
|
|
.PP
|
|
|
|
.SS "bool QwtPicker::isActive () const"
|
|
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"
|
|
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
true when enabled, false otherwise
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBsetEnabled()\fP, \fBeventFilter()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::move (const QPoint & pos)\fC [protected]\fP, \fC [virtual]\fP"
|
|
Move the last point of the selection The \fBmoved()\fP signal is emitted\&.
|
|
.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
|
|
|
|
.PP
|
|
Reimplemented in \fBQwtPlotPicker\fP\&.
|
|
.SS "void QwtPicker::moved (const QPoint & 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 "QPainterPath QwtPicker::pickArea () const\fC [virtual]\fP"
|
|
Find the area of the observed widget, where selection might happen\&.
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
\fBparentWidget()\fP->contentsRect()
|
|
.RE
|
|
.PP
|
|
|
|
.SS "const QPolygon & QwtPicker::pickedPoints () const\fC [protected]\fP"
|
|
Return the points, that have been collected so far\&. The \fBselection()\fP is calculated from the \fBpickedPoints()\fP in \fBadjustedPoints()\fP\&.
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
Picked points
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::remove ()\fC [protected]\fP, \fC [virtual]\fP"
|
|
Remove the last point of the selection The \fBremoved()\fP signal is emitted\&.
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBisActive()\fP, \fBbegin()\fP, \fBend()\fP, \fBappend()\fP, \fBmove()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::removed (const QPoint & pos)\fC [signal]\fP"
|
|
A signal emitted whenever the last appended point of the selection has been removed\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIpos\fP Position of the point, that has been removed
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBremove()\fP, \fBappended()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::reset ()\fC [protected]\fP, \fC [virtual]\fP"
|
|
Reset the state machine and terminate ( end(false) ) the selection
|
|
.SS "\fBQwtPicker::ResizeMode\fP QwtPicker::resizeMode () const"
|
|
|
|
.PP
|
|
\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"
|
|
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
Rubber band style
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBsetRubberBand()\fP, \fBRubberBand\fP, \fBrubberBandPen()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "QRegion QwtPicker::rubberBandMask () const\fC [virtual]\fP"
|
|
Calculate the mask for the rubber band overlay
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
Region for the mask
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
QWidget::setMask()
|
|
.RE
|
|
.PP
|
|
|
|
.SS "const \fBQwtWidgetOverlay\fP * QwtPicker::rubberBandOverlay () const\fC [protected]\fP"
|
|
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
Overlay displaying the rubber band
|
|
.RE
|
|
.PP
|
|
|
|
.SS "QPen QwtPicker::rubberBandPen () const"
|
|
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
Rubber band pen
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBsetRubberBandPen()\fP, \fBrubberBand()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::selected (const QPolygon & polygon)\fC [signal]\fP"
|
|
A signal emitting the selected points, at the end of a selection\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIpolygon\fP Selected points
|
|
.RE
|
|
.PP
|
|
|
|
.SS "QPolygon QwtPicker::selection () const"
|
|
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
Selected points
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBpickedPoints()\fP, \fBadjustedPoints()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::setEnabled (bool enabled)\fC [slot]\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 QwtPicker::setResizeMode (\fBResizeMode\fP mode)"
|
|
|
|
.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\fP rubberBand)"
|
|
Set the rubber band style
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIrubberBand\fP Rubber band 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)"
|
|
Set the pen for the rubberband
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIpen\fP Rubber band pen
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBrubberBandPen()\fP, \fBsetRubberBand()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::setStateMachine (\fBQwtPickerMachine\fP * stateMachine)"
|
|
Set a state machine and delete the previous one
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIstateMachine\fP State machine
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBstateMachine()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::setTrackerFont (const QFont & font)"
|
|
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\fP mode)"
|
|
|
|
.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)"
|
|
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 ()"
|
|
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
Assigned state machine
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBsetStateMachine()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "const \fBQwtPickerMachine\fP * QwtPicker::stateMachine () const"
|
|
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
Assigned state machine
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBsetStateMachine()\fP
|
|
.RE
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.PP
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|
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|
.SS "void QwtPicker::stretchSelection (const QSize & oldSize, const QSize & newSize)\fC [protected]\fP, \fC [virtual]\fP"
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|
Scale the selection by the ratios of oldSize and newSize The \fBchanged()\fP signal is emitted\&.
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.PP
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\fBParameters\fP
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.RS 4
|
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\fIoldSize\fP Previous size
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.br
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\fInewSize\fP Current size
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.RE
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|
.PP
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\fBSee also\fP
|
|
.RS 4
|
|
\fBResizeMode\fP, \fBsetResizeMode()\fP, \fBresizeMode()\fP
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.RE
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.PP
|
|
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|
.SS "QFont QwtPicker::trackerFont () const"
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.PP
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\fBReturns\fP
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.RS 4
|
|
Tracker font
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.RE
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|
.PP
|
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\fBSee also\fP
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|
.RS 4
|
|
\fBsetTrackerFont()\fP, \fBtrackerMode()\fP, \fBtrackerPen()\fP
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.RE
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.PP
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.SS "\fBQwtPicker::DisplayMode\fP QwtPicker::trackerMode () const"
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.PP
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|
\fBReturns\fP
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|
.RS 4
|
|
Tracker display mode
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|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBsetTrackerMode()\fP, \fBDisplayMode\fP
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.RE
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.PP
|
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.SS "const \fBQwtWidgetOverlay\fP * QwtPicker::trackerOverlay () const\fC [protected]\fP"
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.PP
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\fBReturns\fP
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.RS 4
|
|
Overlay displaying the tracker text
|
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.RE
|
|
.PP
|
|
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|
.SS "QPen QwtPicker::trackerPen () const"
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.PP
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\fBReturns\fP
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.RS 4
|
|
Tracker pen
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBsetTrackerPen()\fP, \fBtrackerMode()\fP, \fBtrackerFont()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "QPoint QwtPicker::trackerPosition () const"
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|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
Current position of the tracker
|
|
.RE
|
|
.PP
|
|
|
|
.SS "QRect QwtPicker::trackerRect (const QFont & font) const\fC [virtual]\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 QwtPicker::trackerText (const QPoint & pos) const\fC [virtual]\fP"
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|
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|
.PP
|
|
Return the label for a position\&. 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 string conversion is '%d'\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIpos\fP Position
|
|
.RE
|
|
.PP
|
|
\fBReturns\fP
|
|
.RS 4
|
|
Converted position as string
|
|
.RE
|
|
.PP
|
|
|
|
.PP
|
|
Reimplemented in \fBQwtPlotPicker\fP\&.
|
|
.SS "void QwtPicker::transition (const QEvent * event)\fC [protected]\fP, \fC [virtual]\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
|
|
\fIevent\fP Event
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::widgetEnterEvent (QEvent * event)\fC [protected]\fP, \fC [virtual]\fP"
|
|
Handle a enter event for the observed widget\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIevent\fP Qt event
|
|
.RE
|
|
.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::widgetKeyPressEvent (QKeyEvent * keyEvent)\fC [protected]\fP, \fC [virtual]\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
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIkeyEvent\fP Key event
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\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 * keyEvent)\fC [protected]\fP, \fC [virtual]\fP"
|
|
Handle a key release event for the observed widget\&.
|
|
.PP
|
|
Passes the event to the state machine\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIkeyEvent\fP Key event
|
|
.RE
|
|
.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 * event)\fC [protected]\fP, \fC [virtual]\fP"
|
|
Handle a leave event for the observed widget\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIevent\fP Qt event
|
|
.RE
|
|
.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 * mouseEvent)\fC [protected]\fP, \fC [virtual]\fP"
|
|
Handle mouse double click event for the observed widget\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fImouseEvent\fP Mouse event
|
|
.RE
|
|
.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 * mouseEvent)\fC [protected]\fP, \fC [virtual]\fP"
|
|
Handle a mouse move event for the observed widget\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fImouseEvent\fP Mouse event
|
|
.RE
|
|
.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 * mouseEvent)\fC [protected]\fP, \fC [virtual]\fP"
|
|
Handle a mouse press event for the observed widget\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fImouseEvent\fP Mouse event
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBeventFilter()\fP, \fBwidgetMouseReleaseEvent()\fP, \fBwidgetMouseDoubleClickEvent()\fP, \fBwidgetMouseMoveEvent()\fP, \fBwidgetWheelEvent()\fP, \fBwidgetKeyPressEvent()\fP, \fBwidgetKeyReleaseEvent()\fP
|
|
.RE
|
|
.PP
|
|
|
|
.SS "void QwtPicker::widgetMouseReleaseEvent (QMouseEvent * mouseEvent)\fC [protected]\fP, \fC [virtual]\fP"
|
|
Handle a mouse release event for the observed widget\&.
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fImouseEvent\fP Mouse event
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\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 * wheelEvent)\fC [protected]\fP, \fC [virtual]\fP"
|
|
Handle a wheel event for the observed widget\&.
|
|
.PP
|
|
Move the last point of the selection in case of \fBisActive()\fP == true
|
|
.PP
|
|
\fBParameters\fP
|
|
.RS 4
|
|
\fIwheelEvent\fP Wheel event
|
|
.RE
|
|
.PP
|
|
\fBSee also\fP
|
|
.RS 4
|
|
\fBeventFilter()\fP, \fBwidgetMousePressEvent()\fP, \fBwidgetMouseReleaseEvent()\fP, \fBwidgetMouseDoubleClickEvent()\fP, \fBwidgetMouseMoveEvent()\fP, \fBwidgetKeyPressEvent()\fP, \fBwidgetKeyReleaseEvent()\fP
|
|
.RE
|
|
.PP
|
|
|
|
|
|
.SH "Author"
|
|
.PP
|
|
Generated automatically by Doxygen for Qwt User's Guide from the source code\&.
|