Canvas of a QwtPolarPlot. More...
#include <qwt_polar_canvas.h>

| Public Types | |
| enum | PaintAttribute { BackingStore = 0x01 } | 
| Paint attributes.  More... | |
| typedef QFlags< PaintAttribute > | PaintAttributes | 
| Paint attributes. | |
| Public Member Functions | |
| QwtPolarCanvas (QwtPolarPlot *) | |
| Constructor. | |
| virtual | ~QwtPolarCanvas () | 
| Destructor. | |
| QwtPolarPlot * | plot () | 
| const QwtPolarPlot * | plot () const | 
| void | setPaintAttribute (PaintAttribute, bool on=true) | 
| Changing the paint attributes.  More... | |
| bool | testPaintAttribute (PaintAttribute) const | 
| const QPixmap * | backingStore () const | 
| void | invalidateBackingStore () | 
| Invalidate the internal backing store. | |
| QwtPointPolar | invTransform (const QPoint &) const | 
| QPoint | transform (const QwtPointPolar &) const | 
| Protected Member Functions | |
| virtual void | paintEvent (QPaintEvent *) | 
| virtual void | resizeEvent (QResizeEvent *) | 
Canvas of a QwtPolarPlot.
The canvas is the widget, where all polar items are painted to.
| const QPixmap * QwtPolarCanvas::backingStore | ( | ) | const | 
| QwtPointPolar QwtPolarCanvas::invTransform | ( | const QPoint & | pos | ) | const | 
Translate a point from widget into plot coordinates
| pos | Point in widget coordinates of the plot canvas | 
| 
 | protectedvirtual | 
Paint event
| event | Paint event | 
| QwtPolarPlot * QwtPolarCanvas::plot | ( | ) | 
| const QwtPolarPlot * QwtPolarCanvas::plot | ( | ) | const | 
| 
 | protectedvirtual | 
Resize event
| event | Resize event | 
| void QwtPolarCanvas::setPaintAttribute | ( | PaintAttribute | attribute, | 
| bool | on = true | ||
| ) | 
Changing the paint attributes.
| attribute | Paint attribute | 
| on | On/Off | 
The default setting enables BackingStore
| bool QwtPolarCanvas::testPaintAttribute | ( | PaintAttribute | attribute | ) | const | 
Test wether a paint attribute is enabled
| attribute | Paint attribute | 
| QPoint QwtPolarCanvas::transform | ( | const QwtPointPolar & | polarPos | ) | const | 
Translate a point from plot into widget coordinates
| polarPos | Point in plot coordinates | 
 1.8.5
 1.8.5