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Qwt User's Guide
6.2.0
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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.
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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.
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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.