Sources_For_Linux/Qwt/doc/man/man3/QwtPlotPanner.3

.TH "QwtPlotPanner" 3 "Mon Dec 28 2020" "Version 6.1.6" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtPlotPanner \- \fBQwtPlotPanner\fP provides panning of a plot canvas\&.  

.SH SYNOPSIS
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.PP
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\fC#include <qwt_plot_panner\&.h>\fP
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Inherits \fBQwtPanner\fP\&.
.SS "Public Member Functions"

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.RI "\fBQwtPlotPanner\fP (QWidget *)"
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.RI "A panner for the canvas of a \fBQwtPlot\fP\&. "
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.RI "virtual \fB~QwtPlotPanner\fP ()"
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.RI "Destructor\&. "
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.RI "QWidget * \fBcanvas\fP ()"
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.RI "Return observed plot canvas\&. "
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.RI "const QWidget * \fBcanvas\fP () const"
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.RI "Return Observed plot canvas\&. "
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.RI "\fBQwtPlot\fP * \fBplot\fP ()"
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.RI "Return plot widget, containing the observed plot canvas\&. "
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.RI "const \fBQwtPlot\fP * \fBplot\fP () const"
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.RI "Return plot widget, containing the observed plot canvas\&. "
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.RI "void \fBsetAxisEnabled\fP (int axis, bool on)"
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.RI "En/Disable an axis\&. "
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.RI "bool \fBisAxisEnabled\fP (int axis) const"
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.SS "Protected Slots"

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.RI "virtual void \fBmoveCanvas\fP (int dx, int dy)"
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.SS "Protected Member Functions"

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.RI "virtual QBitmap \fBcontentsMask\fP () const"
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.RI "virtual QPixmap \fBgrab\fP () const"
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.SS "Additional Inherited Members"
.SH "Detailed Description"
.PP 
\fBQwtPlotPanner\fP provides panning of a plot canvas\&. 

\fBQwtPlotPanner\fP is a panner for a plot canvas, that adjusts the scales of the axes after dropping the canvas on its new position\&.
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Together with \fBQwtPlotZoomer\fP and \fBQwtPlotMagnifier\fP powerful ways of navigating on a \fBQwtPlot\fP widget can be implemented easily\&.
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\fBNote\fP
.RS 4
The axes are not updated, while dragging the canvas 
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\fBSee also\fP
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\fBQwtPlotZoomer\fP, \fBQwtPlotMagnifier\fP 
.RE
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.SH "Constructor & Destructor Documentation"
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.SS "QwtPlotPanner::QwtPlotPanner (QWidget * canvas)\fC [explicit]\fP"

.PP
A panner for the canvas of a \fBQwtPlot\fP\&. The panner is enabled for all axes
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\fBParameters\fP
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\fIcanvas\fP Plot canvas to pan, also the parent object
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\fBSee also\fP
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\fBsetAxisEnabled()\fP 
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.SH "Member Function Documentation"
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.SS "QBitmap QwtPlotPanner::contentsMask () const\fC [protected]\fP, \fC [virtual]\fP"
Calculate a mask from the border path of the canvas
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\fBReturns\fP
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Mask as bitmap 
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\fBSee also\fP
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\fBQwtPlotCanvas::borderPath()\fP 
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.PP
Reimplemented from \fBQwtPanner\fP\&.
.SS "QPixmap QwtPlotPanner::grab () const\fC [protected]\fP, \fC [virtual]\fP"

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\fBReturns\fP
.RS 4
Pixmap with the content of the canvas 
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.PP
Reimplemented from \fBQwtPanner\fP\&.
.SS "bool QwtPlotPanner::isAxisEnabled (int axis) const"
Test if an axis is enabled
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\fBParameters\fP
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\fIaxis\fP Axis, see \fBQwtPlot::Axis\fP 
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\fBReturns\fP
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True, if the axis is enabled
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\fBSee also\fP
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\fBsetAxisEnabled()\fP, \fBmoveCanvas()\fP 
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.SS "void QwtPlotPanner::moveCanvas (int dx, int dy)\fC [protected]\fP, \fC [virtual]\fP, \fC [slot]\fP"
Adjust the enabled axes according to dx/dy
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\fBParameters\fP
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\fIdx\fP Pixel offset in x direction 
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\fIdy\fP Pixel offset in y direction
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\fBSee also\fP
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\fBQwtPanner::panned()\fP 
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.SS "void QwtPlotPanner::setAxisEnabled (int axis, bool on)"

.PP
En/Disable an axis\&. Axes that are enabled will be synchronized to the result of panning\&. All other axes will remain unchanged\&.
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\fBParameters\fP
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\fIaxis\fP Axis, see \fBQwtPlot::Axis\fP 
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\fIon\fP On/Off
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\fBSee also\fP
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\fBisAxisEnabled()\fP, \fBmoveCanvas()\fP 
.RE
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.SH "Author"
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Generated automatically by Doxygen for Qwt User's Guide from the source code\&.