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Qwt User's Guide 6.3.0
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QwtPlotPanner provides panning of a plot canvas. More...
#include <qwt_plot_panner.h>
Public Slots | |
| virtual void | moveCanvas (int dx, int dy) |
Public Member Functions | |
| QwtPlotPanner (QWidget *) | |
| A panner for the canvas of a QwtPlot. | |
| virtual | ~QwtPlotPanner () |
| Destructor. | |
| QWidget * | canvas () |
| Return observed plot canvas. | |
| const QWidget * | canvas () const |
| Return Observed plot canvas. | |
| QwtPlot * | plot () |
| Return plot widget, containing the observed plot canvas. | |
| const QwtPlot * | plot () const |
| Return plot widget, containing the observed plot canvas. | |
| void | setAxisEnabled (QwtAxisId axisId, bool on) |
| En/Disable an axis. | |
| bool | isAxisEnabled (QwtAxisId) const |
Public Member Functions inherited from QwtPanner | |
| QwtPanner (QWidget *parent) | |
| virtual | ~QwtPanner () |
| Destructor. | |
| void | setEnabled (bool) |
| En/disable the panner. | |
| bool | isEnabled () const |
| void | setMouseButton (Qt::MouseButton, Qt::KeyboardModifiers=Qt::NoModifier) |
| void | getMouseButton (Qt::MouseButton &button, Qt::KeyboardModifiers &) const |
| Get mouse button and modifiers used for panning. | |
| void | setAbortKey (int key, Qt::KeyboardModifiers=Qt::NoModifier) |
| void | getAbortKey (int &key, Qt::KeyboardModifiers &) const |
| Get the abort key and modifiers. | |
| void | setCursor (const QCursor &) |
| const QCursor | cursor () const |
| void | setOrientations (Qt::Orientations) |
| Qt::Orientations | orientations () const |
| Return the orientation, where panning is enabled. | |
| bool | isOrientationEnabled (Qt::Orientation) const |
| virtual bool | eventFilter (QObject *, QEvent *) override |
| Event filter. | |
Protected Member Functions | |
| virtual QBitmap | contentsMask () const override |
| virtual QPixmap | grab () const override |
Protected Member Functions inherited from QwtPanner | |
| virtual void | widgetMousePressEvent (QMouseEvent *) |
| virtual void | widgetMouseReleaseEvent (QMouseEvent *) |
| virtual void | widgetMouseMoveEvent (QMouseEvent *) |
| virtual void | widgetKeyPressEvent (QKeyEvent *) |
| virtual void | widgetKeyReleaseEvent (QKeyEvent *) |
| virtual void | paintEvent (QPaintEvent *) override |
| Paint event. | |
Additional Inherited Members | |
Signals inherited from QwtPanner | |
| void | panned (int dx, int dy) |
| void | moved (int dx, int dy) |
QwtPlotPanner provides panning of a plot canvas.
QwtPlotPanner is a panner for a plot canvas, 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.
Definition at line 32 of file qwt_plot_panner.h.
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explicit |
A panner for the canvas of a QwtPlot.
The panner is enabled for all axes
| canvas | Plot canvas to pan, also the parent object |
Definition at line 128 of file qwt_plot_panner.cpp.
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virtual |
Destructor.
Definition at line 138 of file qwt_plot_panner.cpp.
| QWidget * QwtPlotPanner::canvas | ( | ) |
Return observed plot canvas.
Definition at line 177 of file qwt_plot_panner.cpp.
| const QWidget * QwtPlotPanner::canvas | ( | ) | const |
Return Observed plot canvas.
Definition at line 183 of file qwt_plot_panner.cpp.
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overrideprotectedvirtual |
Calculate a mask from the border path of the canvas
Reimplemented from QwtPanner.
Definition at line 267 of file qwt_plot_panner.cpp.
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overrideprotectedvirtual |
Reimplemented from QwtPanner.
Definition at line 278 of file qwt_plot_panner.cpp.
| bool QwtPlotPanner::isAxisEnabled | ( | QwtAxisId | axisId | ) | const |
Test if an axis is enabled
| axisId | Axis |
Definition at line 168 of file qwt_plot_panner.cpp.
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virtualslot |
Adjust the enabled axes according to dx/dy
| dx | Pixel offset in x direction |
| dy | Pixel offset in y direction |
Definition at line 216 of file qwt_plot_panner.cpp.
| QwtPlot * QwtPlotPanner::plot | ( | ) |
Return plot widget, containing the observed plot canvas.
Definition at line 189 of file qwt_plot_panner.cpp.
| const QwtPlot * QwtPlotPanner::plot | ( | ) | const |
Return plot widget, containing the observed plot canvas.
Definition at line 199 of file qwt_plot_panner.cpp.
| void QwtPlotPanner::setAxisEnabled | ( | QwtAxisId | axisId, |
| bool | on ) |
En/Disable an axis.
Axes that are enabled will be synchronized to the result of panning. All other axes will remain unchanged.
| axisId | Axis id |
| on | On/Off |
Definition at line 154 of file qwt_plot_panner.cpp.