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Qt5 built in qwt (#570)
- 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)
This commit is contained in:
Dhanya Thattil
546
libs/qwt-6.1.5/doc/man/man3/QwtPlotZoomer.3
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546
libs/qwt-6.1.5/doc/man/man3/QwtPlotZoomer.3
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.TH "QwtPlotZoomer" 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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QwtPlotZoomer \- \fBQwtPlotZoomer\fP provides stacked zooming for a plot 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_plot_zoomer\&.h>\fP
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.PP
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Inherits \fBQwtPlotPicker\fP\&.
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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 \fBmoveBy\fP (double dx, double dy)"
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.br
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.ti -1c
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.RI "virtual void \fBmoveTo\fP (const QPointF &)"
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.br
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.ti -1c
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.RI "virtual void \fBzoom\fP (const QRectF &)"
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.br
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.RI "Zoom in\&. "
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.ti -1c
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.RI "virtual void \fBzoom\fP (int offset)"
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.br
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.RI "Zoom in or out\&. "
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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 \fBzoomed\fP (const QRectF &rect)"
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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 "\fBQwtPlotZoomer\fP (QWidget *, bool doReplot=true)"
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.br
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.RI "Create a zoomer for a plot canvas\&. "
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.ti -1c
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.RI "\fBQwtPlotZoomer\fP (int \fBxAxis\fP, int \fByAxis\fP, QWidget *, bool doReplot=true)"
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.br
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.RI "Create a zoomer for a plot canvas\&. "
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.ti -1c
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.RI "virtual void \fBsetZoomBase\fP (bool doReplot=true)"
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.br
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.ti -1c
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.RI "virtual void \fBsetZoomBase\fP (const QRectF &)"
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.br
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.RI "Set the initial size of the zoomer\&. "
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.ti -1c
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.RI "QRectF \fBzoomBase\fP () const"
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.br
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.ti -1c
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.RI "QRectF \fBzoomRect\fP () const"
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.br
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.ti -1c
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.RI "virtual void \fBsetAxis\fP (int \fBxAxis\fP, int \fByAxis\fP)"
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.br
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.ti -1c
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.RI "void \fBsetMaxStackDepth\fP (int)"
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.br
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.RI "Limit the number of recursive zoom operations to depth\&. "
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.ti -1c
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.RI "int \fBmaxStackDepth\fP () const"
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.br
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.ti -1c
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.RI "const QStack< QRectF > & \fBzoomStack\fP () const"
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.br
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.ti -1c
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.RI "void \fBsetZoomStack\fP (const QStack< QRectF > &, int \fBzoomRectIndex\fP=\-1)"
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.br
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.RI "Assign a zoom stack\&. "
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.ti -1c
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.RI "uint \fBzoomRectIndex\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 void \fBrescale\fP ()"
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.br
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.ti -1c
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.RI "virtual QSizeF \fBminZoomSize\fP () const"
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.br
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.RI "Limit zooming by a minimum rectangle\&. "
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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 \fBwidgetKeyPressEvent\fP (QKeyEvent *)"
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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 bool \fBend\fP (bool ok=true)"
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.br
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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 "Check and correct a selected rectangle\&. "
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.in -1c
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.SS "Additional Inherited Members"
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.SH "Detailed Description"
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.PP
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\fBQwtPlotZoomer\fP provides stacked zooming for a plot widget\&.
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\fBQwtPlotZoomer\fP selects rectangles from user inputs ( mouse or keyboard ) translates them into plot coordinates and adjusts the axes to them\&. The selection is supported by a rubber band and optionally by displaying the coordinates of the current mouse position\&.
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.PP
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Zooming can be repeated as often as possible, limited only by \fBmaxStackDepth()\fP or \fBminZoomSize()\fP\&. Each rectangle is pushed on a stack\&.
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.PP
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The default setting how to select rectangles is a \fBQwtPickerDragRectMachine\fP with the following bindings:
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.PP
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.IP "\(bu" 2
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\fBQwtEventPattern::MouseSelect1\fP
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.br
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The first point of the zoom rectangle is selected by a mouse press, the second point from the position, where the mouse is released\&.
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.IP "\(bu" 2
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\fBQwtEventPattern::KeySelect1\fP
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.br
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The first key press selects the first, the second key press selects the second point\&.
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.IP "\(bu" 2
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\fBQwtEventPattern::KeyAbort\fP
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.br
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Discard the selection in the state, where the first point is selected\&.
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.PP
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.PP
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To traverse the zoom stack the following bindings are used:
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.PP
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.IP "\(bu" 2
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\fBQwtEventPattern::MouseSelect3\fP, \fBQwtEventPattern::KeyUndo\fP
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.br
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Zoom out one position on the zoom stack
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.IP "\(bu" 2
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\fBQwtEventPattern::MouseSelect6\fP, \fBQwtEventPattern::KeyRedo\fP
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.br
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Zoom in one position on the zoom stack
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.IP "\(bu" 2
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\fBQwtEventPattern::MouseSelect2\fP, \fBQwtEventPattern::KeyHome\fP
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.br
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Zoom to the zoom base
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.PP
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.PP
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The \fBsetKeyPattern()\fP and \fBsetMousePattern()\fP functions can be used to configure the zoomer actions\&. The following example shows, how to configure the 'I' and 'O' keys for zooming in and out one position on the zoom stack\&. The 'Home' key is used to 'unzoom' the plot\&.
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.PP
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.PP
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.nf
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zoomer = new QwtPlotZoomer( plot );
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zoomer->setKeyPattern( QwtEventPattern::KeyRedo, Qt::Key_I, Qt::ShiftModifier );
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zoomer->setKeyPattern( QwtEventPattern::KeyUndo, Qt::Key_O, Qt::ShiftModifier );
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zoomer->setKeyPattern( QwtEventPattern::KeyHome, Qt::Key_Home );
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.fi
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.PP
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.PP
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\fBQwtPlotZoomer\fP is tailored for plots with one x and y axis, but it is allowed to attach a second \fBQwtPlotZoomer\fP ( without rubber band and tracker ) for the other axes\&.
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.PP
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\fBNote\fP
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.RS 4
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The realtime example includes an derived zoomer class that adds scrollbars to the plot canvas\&.
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBQwtPlotPanner\fP, \fBQwtPlotMagnifier\fP
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.RE
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.PP
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.SH "Constructor & Destructor Documentation"
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.PP
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.SS "QwtPlotZoomer::QwtPlotZoomer (QWidget * canvas, bool doReplot = \fCtrue\fP)\fC [explicit]\fP"
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.PP
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Create a zoomer for a plot canvas\&. The zoomer is set to those x- and y-axis of the parent plot of the canvas that are enabled\&. If both or no x-axis are enabled, the picker is set to \fBQwtPlot::xBottom\fP\&. If both or no y-axis are enabled, it is set to \fBQwtPlot::yLeft\fP\&.
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.PP
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The zoomer is initialized with a \fBQwtPickerDragRectMachine\fP, the tracker mode is set to \fBQwtPicker::ActiveOnly\fP and the rubber band is set to \fBQwtPicker::RectRubberBand\fP
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.PP
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\fBParameters\fP
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.RS 4
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\fIcanvas\fP Plot canvas to observe, also the parent object
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.br
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\fIdoReplot\fP Call \fBQwtPlot::replot()\fP for the attached plot before initializing the zoomer with its scales\&. This might be necessary, when the plot is in a state with pending scale changes\&.
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBQwtPlot::autoReplot()\fP, \fBQwtPlot::replot()\fP, \fBsetZoomBase()\fP
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.RE
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.PP
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.SS "QwtPlotZoomer::QwtPlotZoomer (int xAxis, int yAxis, QWidget * canvas, bool doReplot = \fCtrue\fP)\fC [explicit]\fP"
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.PP
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Create a zoomer for a plot canvas\&. The zoomer is initialized with a \fBQwtPickerDragRectMachine\fP, the tracker mode is set to \fBQwtPicker::ActiveOnly\fP and the rubber band is set to \fBQwtPicker\fP;;RectRubberBand
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.PP
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\fBParameters\fP
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.RS 4
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\fIxAxis\fP X axis of the zoomer
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.br
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\fIyAxis\fP Y axis of the zoomer
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.br
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\fIcanvas\fP Plot canvas to observe, also the parent object
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.br
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\fIdoReplot\fP Call \fBQwtPlot::replot()\fP for the attached plot before initializing the zoomer with its scales\&. This might be necessary, when the plot is in a state with pending scale changes\&.
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBQwtPlot::autoReplot()\fP, \fBQwtPlot::replot()\fP, \fBsetZoomBase()\fP
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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 QwtPlotZoomer::accept (QPolygon & pa) const\fC [protected]\fP, \fC [virtual]\fP"
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.PP
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Check and correct a selected rectangle\&. Reject rectangles with a height or width < 2, otherwise expand the selected rectangle to a minimum size of 11x11 and accept it\&.
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.PP
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\fBReturns\fP
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.RS 4
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true If the rectangle is accepted, or has been changed to an accepted one\&.
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.RE
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.PP
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.PP
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Reimplemented from \fBQwtPicker\fP\&.
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.SS "void QwtPlotZoomer::begin ()\fC [protected]\fP, \fC [virtual]\fP"
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Rejects selections, when the stack depth is too deep, or the zoomed rectangle is \fBminZoomSize()\fP\&.
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.PP
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\fBSee also\fP
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.RS 4
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\fBminZoomSize()\fP, \fBmaxStackDepth()\fP
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.RE
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.PP
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.PP
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Reimplemented from \fBQwtPicker\fP\&.
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.SS "bool QwtPlotZoomer::end (bool ok = \fCtrue\fP)\fC [protected]\fP, \fC [virtual]\fP"
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Expand the selected rectangle to \fBminZoomSize()\fP and zoom in if accepted\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIok\fP If true, complete the selection and emit selected signals otherwise discard the selection\&.
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBaccept()\fP, \fBminZoomSize()\fP
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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 if the selection has been accepted, false otherwise
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.RE
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.PP
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.PP
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Reimplemented from \fBQwtPlotPicker\fP\&.
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.SS "int QwtPlotZoomer::maxStackDepth () const"
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.PP
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\fBReturns\fP
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.RS 4
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Maximal depth of the zoom stack\&.
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBsetMaxStackDepth()\fP
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.RE
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.PP
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.SS "QSizeF QwtPlotZoomer::minZoomSize () const\fC [protected]\fP, \fC [virtual]\fP"
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.PP
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Limit zooming by a minimum rectangle\&.
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.PP
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\fBReturns\fP
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.RS 4
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\fBzoomBase()\fP\&.width() / 10e4, \fBzoomBase()\fP\&.height() / 10e4
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.RE
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.PP
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.SS "void QwtPlotZoomer::moveBy (double dx, double dy)\fC [slot]\fP"
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Move the current zoom rectangle\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIdx\fP X offset
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.br
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\fIdy\fP Y offset
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.RE
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.PP
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\fBNote\fP
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.RS 4
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The changed rectangle is limited by the zoom base
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.RE
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.PP
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.SS "void QwtPlotZoomer::moveTo (const QPointF & pos)\fC [virtual]\fP, \fC [slot]\fP"
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Move the the current zoom rectangle\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIpos\fP New position
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.RE
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.PP
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||||
\fBSee also\fP
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||||
.RS 4
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QRectF::moveTo()
|
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.RE
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.PP
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||||
\fBNote\fP
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||||
.RS 4
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The changed rectangle is limited by the zoom base
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.RE
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.PP
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||||
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.SS "void QwtPlotZoomer::rescale ()\fC [protected]\fP, \fC [virtual]\fP"
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Adjust the observed plot to \fBzoomRect()\fP
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.PP
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\fBNote\fP
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.RS 4
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Initiates \fBQwtPlot::replot()\fP
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.RE
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.PP
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||||
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.SS "void QwtPlotZoomer::setAxis (int xAxis, int yAxis)\fC [virtual]\fP"
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Reinitialize the axes, and set the zoom base to their scales\&.
|
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.PP
|
||||
\fBParameters\fP
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.RS 4
|
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\fIxAxis\fP X axis
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.br
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||||
\fIyAxis\fP Y axis
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.PP
|
||||
Reimplemented from \fBQwtPlotPicker\fP\&.
|
||||
.SS "void QwtPlotZoomer::setMaxStackDepth (int depth)"
|
||||
|
||||
.PP
|
||||
Limit the number of recursive zoom operations to depth\&. A value of -1 set the depth to unlimited, 0 disables zooming\&. If the current zoom rectangle is below depth, the plot is unzoomed\&.
|
||||
.PP
|
||||
\fBParameters\fP
|
||||
.RS 4
|
||||
\fIdepth\fP Maximum for the stack depth
|
||||
.RE
|
||||
.PP
|
||||
\fBSee also\fP
|
||||
.RS 4
|
||||
\fBmaxStackDepth()\fP
|
||||
.RE
|
||||
.PP
|
||||
\fBNote\fP
|
||||
.RS 4
|
||||
depth doesn't include the zoom base, so \fBzoomStack()\fP\&.count() might be \fBmaxStackDepth()\fP + 1\&.
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.SS "void QwtPlotZoomer::setZoomBase (bool doReplot = \fCtrue\fP)\fC [virtual]\fP"
|
||||
Reinitialized the zoom stack with \fBscaleRect()\fP as base\&.
|
||||
.PP
|
||||
\fBParameters\fP
|
||||
.RS 4
|
||||
\fIdoReplot\fP Call \fBQwtPlot::replot()\fP for the attached plot before initializing the zoomer with its scales\&. This might be necessary, when the plot is in a state with pending scale changes\&.
|
||||
.RE
|
||||
.PP
|
||||
\fBSee also\fP
|
||||
.RS 4
|
||||
\fBzoomBase()\fP, \fBscaleRect()\fP \fBQwtPlot::autoReplot()\fP, \fBQwtPlot::replot()\fP\&.
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.SS "void QwtPlotZoomer::setZoomBase (const QRectF & base)\fC [virtual]\fP"
|
||||
|
||||
.PP
|
||||
Set the initial size of the zoomer\&. base is united with the current \fBscaleRect()\fP and the zoom stack is reinitialized with it as zoom base\&. plot is zoomed to \fBscaleRect()\fP\&.
|
||||
.PP
|
||||
\fBParameters\fP
|
||||
.RS 4
|
||||
\fIbase\fP Zoom base
|
||||
.RE
|
||||
.PP
|
||||
\fBSee also\fP
|
||||
.RS 4
|
||||
\fBzoomBase()\fP, \fBscaleRect()\fP
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.SS "void QwtPlotZoomer::setZoomStack (const QStack< QRectF > & zoomStack, int zoomRectIndex = \fC\-1\fP)"
|
||||
|
||||
.PP
|
||||
Assign a zoom stack\&. In combination with other types of navigation it might be useful to modify to manipulate the complete zoom stack\&.
|
||||
.PP
|
||||
\fBParameters\fP
|
||||
.RS 4
|
||||
\fIzoomStack\fP New zoom stack
|
||||
.br
|
||||
\fIzoomRectIndex\fP Index of the current position of zoom stack\&. In case of -1 the current position is at the top of the stack\&.
|
||||
.RE
|
||||
.PP
|
||||
\fBNote\fP
|
||||
.RS 4
|
||||
The zoomed signal might be emitted\&.
|
||||
.RE
|
||||
.PP
|
||||
\fBSee also\fP
|
||||
.RS 4
|
||||
\fBzoomStack()\fP, \fBzoomRectIndex()\fP
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.SS "void QwtPlotZoomer::widgetKeyPressEvent (QKeyEvent * ke)\fC [protected]\fP, \fC [virtual]\fP"
|
||||
Qt::Key_Plus zooms in, Qt::Key_Minus zooms out one position on the zoom stack, Qt::Key_Escape zooms out to the zoom base\&.
|
||||
.PP
|
||||
Changes the current position on the stack, but doesn't pop any rectangle\&.
|
||||
.PP
|
||||
\fBNote\fP
|
||||
.RS 4
|
||||
The keys codes can be changed, using \fBQwtEventPattern::setKeyPattern\fP: 3, 4, 5
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.PP
|
||||
Reimplemented from \fBQwtPicker\fP\&.
|
||||
.SS "void QwtPlotZoomer::widgetMouseReleaseEvent (QMouseEvent * me)\fC [protected]\fP, \fC [virtual]\fP"
|
||||
Qt::MidButton zooms out one position on the zoom stack, Qt::RightButton to the zoom base\&.
|
||||
.PP
|
||||
Changes the current position on the stack, but doesn't pop any rectangle\&.
|
||||
.PP
|
||||
\fBNote\fP
|
||||
.RS 4
|
||||
The mouse events can be changed, using \fBQwtEventPattern::setMousePattern\fP: 2, 1
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.PP
|
||||
Reimplemented from \fBQwtPicker\fP\&.
|
||||
.SS "void QwtPlotZoomer::zoom (const QRectF & rect)\fC [virtual]\fP, \fC [slot]\fP"
|
||||
|
||||
.PP
|
||||
Zoom in\&. Clears all rectangles above the current position of the zoom stack and pushes the normalized rectangle on it\&.
|
||||
.PP
|
||||
\fBNote\fP
|
||||
.RS 4
|
||||
If the maximal stack depth is reached, zoom is ignored\&.
|
||||
.PP
|
||||
The zoomed signal is emitted\&.
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.SS "void QwtPlotZoomer::zoom (int offset)\fC [virtual]\fP, \fC [slot]\fP"
|
||||
|
||||
.PP
|
||||
Zoom in or out\&. Activate a rectangle on the zoom stack with an offset relative to the current position\&. Negative values of offset will zoom out, positive zoom in\&. A value of 0 zooms out to the zoom base\&.
|
||||
.PP
|
||||
\fBParameters\fP
|
||||
.RS 4
|
||||
\fIoffset\fP Offset relative to the current position of the zoom stack\&.
|
||||
.RE
|
||||
.PP
|
||||
\fBNote\fP
|
||||
.RS 4
|
||||
The zoomed signal is emitted\&.
|
||||
.RE
|
||||
.PP
|
||||
\fBSee also\fP
|
||||
.RS 4
|
||||
\fBzoomRectIndex()\fP
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.SS "QRectF QwtPlotZoomer::zoomBase () const"
|
||||
|
||||
.PP
|
||||
\fBReturns\fP
|
||||
.RS 4
|
||||
Initial rectangle of the zoomer
|
||||
.RE
|
||||
.PP
|
||||
\fBSee also\fP
|
||||
.RS 4
|
||||
\fBsetZoomBase()\fP, \fBzoomRect()\fP
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.SS "void QwtPlotZoomer::zoomed (const QRectF & rect)\fC [signal]\fP"
|
||||
A signal emitting the \fBzoomRect()\fP, when the plot has been zoomed in or out\&.
|
||||
.PP
|
||||
\fBParameters\fP
|
||||
.RS 4
|
||||
\fIrect\fP Current zoom rectangle\&.
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.SS "QRectF QwtPlotZoomer::zoomRect () const"
|
||||
|
||||
.PP
|
||||
\fBReturns\fP
|
||||
.RS 4
|
||||
Rectangle at the current position on the zoom stack\&.
|
||||
.RE
|
||||
.PP
|
||||
\fBSee also\fP
|
||||
.RS 4
|
||||
\fBzoomRectIndex()\fP, \fBscaleRect()\fP\&.
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.SS "uint QwtPlotZoomer::zoomRectIndex () const"
|
||||
|
||||
.PP
|
||||
\fBReturns\fP
|
||||
.RS 4
|
||||
Index of current position of zoom stack\&.
|
||||
.RE
|
||||
.PP
|
||||
|
||||
.SS "const QStack< QRectF > & QwtPlotZoomer::zoomStack () const"
|
||||
|
||||
.PP
|
||||
\fBReturns\fP
|
||||
.RS 4
|
||||
The zoom stack\&. \fBzoomStack()\fP[0] is the zoom base, \fBzoomStack()\fP[1] the first zoomed rectangle\&.
|
||||
.RE
|
||||
.PP
|
||||
\fBSee also\fP
|
||||
.RS 4
|
||||
\fBsetZoomStack()\fP, \fBzoomRectIndex()\fP
|
||||
.RE
|
||||
.PP
|
||||
|
||||
|
||||
.SH "Author"
|
||||
.PP
|
||||
Generated automatically by Doxygen for Qwt User's Guide from the source code\&.
|
||||
Reference in New Issue
Block a user