QwtPolarPanner - Man Page
QwtPolarPanner provides panning of a polar plot canvas.
Synopsis
#include <qwt_polar_panner.h>
Inherits QwtPanner.
Public Slots
virtual void movePlot (int dx, int dy)
Public Member Functions
QwtPolarPanner (QwtPolarCanvas *)
Create a plot panner for a polar plot canvas.
virtual ~QwtPolarPanner ()
Destructor.
QwtPolarPlot * plot ()
const QwtPolarPlot * plot () const
QwtPolarCanvas * canvas ()
const QwtPolarCanvas * canvas () const
Protected Member Functions
virtual void widgetMousePressEvent (QMouseEvent *) override
Additional Inherited Members
Detailed Description
QwtPolarPanner provides panning of a polar plot canvas.
QwtPolarPanner is a panner for a QwtPolarCanvas, that adjusts the visible area after dropping the canvas on its new position.
Together with QwtPolarMagnifier individual ways of navigating on a QwtPolarPlot widget can be implemented easily.
- See also
QwtPolarMagnifier
Definition at line 30 of file qwt_polar_panner.h.
Member Function Documentation
QwtPolarCanvas * QwtPolarPanner::canvas ()
- Returns
observed plot canvas
Definition at line 29 of file qwt_polar_panner.cpp.
const QwtPolarCanvas * QwtPolarPanner::canvas () const
- Returns
observed plot canvas
Definition at line 35 of file qwt_polar_panner.cpp.
void QwtPolarPanner::movePlot (int dx, int dy) [virtual], [slot]
Adjust the zoomed area according to dx/dy
- Parameters
dx Pixel offset in x direction
dy Pixel offset in y direction- See also
QwtPanner::panned(), QwtPolarPlot::zoom()
Definition at line 68 of file qwt_polar_panner.cpp.
QwtPolarPlot * QwtPolarPanner::plot ()
- Returns
observed plot
Definition at line 41 of file qwt_polar_panner.cpp.
const QwtPolarPlot * QwtPolarPanner::plot () const
- Returns
observed plot
Definition at line 51 of file qwt_polar_panner.cpp.
void QwtPolarPanner::widgetMousePressEvent (QMouseEvent * event) [override], [protected], [virtual]
Block panning when the plot zoom factor is >= 1.0.
- Parameters
event Mouse event
Reimplemented from QwtPanner.
Definition at line 108 of file qwt_polar_panner.cpp.
Author
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