QwtPlotPanner provides panning of a plot canvas. More...
#include <qwt_plot_panner.h>
Public Member Functions | |
QwtPlotPanner (QwtPlotCanvas *) | |
virtual | ~QwtPlotPanner () |
QwtPlotCanvas * | canvas () |
const QwtPlotCanvas * | canvas () const |
QwtPlot * | plot () |
const QwtPlot * | plot () const |
void | setAxisEnabled (int axis, bool on) |
bool | isAxisEnabled (int axis) const |
Protected Slots | |
virtual void | moveCanvas (int dx, int dy) |
QwtPlotPanner provides panning of a plot canvas.
QwtPlotPanner is a panner for a QwtPlotCanvas, that adjusts the scales of the axes after dropping the canvas on its new position.
Together with QwtPlotZoomer and QwtPlotMagnifier powerful ways of navigating on a QwtPlot widget can be implemented easily.
QwtPlotPanner::QwtPlotPanner | ( | QwtPlotCanvas * | canvas | ) | [explicit] |
Create a plot panner.
The panner is enabled for all axes
canvas | Plot canvas to pan, also the parent object |
QwtPlotPanner::~QwtPlotPanner | ( | ) | [virtual] |
Destructor.
const QwtPlotCanvas * QwtPlotPanner::canvas | ( | ) | const |
Return Observed plot canvas.
QwtPlotCanvas * QwtPlotPanner::canvas | ( | ) |
Return observed plot canvas.
bool QwtPlotPanner::isAxisEnabled | ( | int | axis | ) | const |
Test if an axis is enabled
axis | Axis, see QwtPlot::Axis |
void QwtPlotPanner::moveCanvas | ( | int | dx, | |
int | dy | |||
) | [protected, virtual, slot] |
Adjust the enabled axes according to dx/dy
dx | Pixel offset in x direction | |
dy | Pixel offset in y direction |
const QwtPlot * QwtPlotPanner::plot | ( | ) | const |
Return plot widget, containing the observed plot canvas.
QwtPlot * QwtPlotPanner::plot | ( | ) |
Return plot widget, containing the observed plot canvas.
void QwtPlotPanner::setAxisEnabled | ( | int | axis, | |
bool | on | |||
) |
En/Disable an axis.
Axes that are enabled will be synchronized to the result of panning. All other axes will remain unchanged.
axis | Axis, see QwtPlot::Axis | |
on | On/Off |