| Qwt User's Guide
    6.2.0
    | 
QwtPolarPanner provides panning of a polar plot canvas. More...
#include <qwt_polar_panner.h>
| 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 | 
|  Public Member Functions inherited from QwtPanner | |
| QwtPanner (QWidget *parent) | |
| virtual | ~QwtPanner () | 
| Destructor. | |
| void | setEnabled (bool) | 
| En/disable the panner.  More... | |
| 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.  More... | |
| Protected Member Functions | |
| virtual void | widgetMousePressEvent (QMouseEvent *) override | 
|  Protected Member Functions inherited from QwtPanner | |
| virtual void | widgetMouseReleaseEvent (QMouseEvent *) | 
| virtual void | widgetMouseMoveEvent (QMouseEvent *) | 
| virtual void | widgetKeyPressEvent (QKeyEvent *) | 
| virtual void | widgetKeyReleaseEvent (QKeyEvent *) | 
| virtual void | paintEvent (QPaintEvent *) override | 
| Paint event.  More... | |
| virtual QBitmap | contentsMask () const | 
| Calculate a mask for the contents of the panned widget.  More... | |
| virtual QPixmap | grab () const | 
| Additional Inherited Members | |
|  Signals inherited from QwtPanner | |
| void | panned (int dx, int dy) | 
| void | moved (int dx, int dy) | 
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.
Definition at line 30 of file qwt_polar_panner.h.
| QwtPolarCanvas * QwtPolarPanner::canvas | ( | ) | 
Definition at line 29 of file qwt_polar_panner.cpp.
| const QwtPolarCanvas * QwtPolarPanner::canvas | ( | ) | const | 
Definition at line 35 of file qwt_polar_panner.cpp.
| 
 | virtualslot | 
Adjust the zoomed area according to dx/dy
| dx | Pixel offset in x direction | 
| dy | Pixel offset in y direction | 
Definition at line 68 of file qwt_polar_panner.cpp.
| QwtPolarPlot * QwtPolarPanner::plot | ( | ) | 
Definition at line 41 of file qwt_polar_panner.cpp.
| const QwtPolarPlot * QwtPolarPanner::plot | ( | ) | const | 
Definition at line 51 of file qwt_polar_panner.cpp.
| 
 | overrideprotectedvirtual | 
Block panning when the plot zoom factor is >= 1.0.
| event | Mouse event | 
Reimplemented from QwtPanner.
Definition at line 108 of file qwt_polar_panner.cpp.