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QwtPickerPolygonMachine Class Reference
A state machine for polygon selections. More...
#include <qwt_picker_machine.h>
Inheritance diagram for QwtPickerPolygonMachine:
Public Member Functions | |
| QwtPickerPolygonMachine () | |
| Constructor. | |
| virtual QList< Command > | transition (const QwtEventPattern &, const QEvent *) override |
| Transition. | |
 Public Member Functions inherited from QwtPickerMachine | |
| QwtPickerMachine (SelectionType) | |
| Constructor. | |
| virtual | ~QwtPickerMachine () |
| Destructor. | |
| void | reset () |
| Set the current state to 0. | |
| int | state () const |
| Return the current state. | |
| void | setState (int) |
| Change the current state. | |
| SelectionType | selectionType () const |
| Return the selection type. | |
Additional Inherited Members | |
| Public Types inherited from QwtPickerMachine | |
| enum | SelectionType { NoSelection = -1 , PointSelection , RectSelection , PolygonSelection } |
| enum | Command { Begin , Append , Move , Remove , End } |
| Commands - the output of a state machine. More... | |
Detailed Description
A state machine for polygon selections.
Pressing QwtEventPattern::MouseSelect1 or QwtEventPattern::KeySelect1 starts the selection and selects the first point, or appends a point. Pressing QwtEventPattern::MouseSelect2 or QwtEventPattern::KeySelect2 appends the last point and terminates the selection.
Definition at line 205 of file qwt_picker_machine.h.
Constructor & Destructor Documentation
◆ QwtPickerPolygonMachine()
| QwtPickerPolygonMachine::QwtPickerPolygonMachine | ( | ) |
Constructor.
Definition at line 384 of file qwt_picker_machine.cpp.
Member Function Documentation
◆ transition()
|
overridevirtual |
