| Qwt User's Guide 6.3.0
    | 
A state machine for QwtPicker selections. More...
#include <qwt_picker_machine.h>
| Public Types | |
| enum | SelectionType { NoSelection = -1 , PointSelection , RectSelection , PolygonSelection } | 
| enum | Command { Begin , Append , Move , Remove , End } | 
| Commands - the output of a state machine.  More... | |
| Public Member Functions | |
| QwtPickerMachine (SelectionType) | |
| Constructor. | |
| virtual | ~QwtPickerMachine () | 
| Destructor. | |
| virtual QList< Command > | transition (const QwtEventPattern &, const QEvent *)=0 | 
| Transition. | |
| 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. | |
A state machine for QwtPicker selections.
QwtPickerMachine accepts key and mouse events and translates them into selection commands.
Definition at line 28 of file qwt_picker_machine.h.
Commands - the output of a state machine.
Definition at line 51 of file qwt_picker_machine.h.
Type of a selection.
Definition at line 35 of file qwt_picker_machine.h.
| 
 | explicit | 
Constructor.
Definition at line 16 of file qwt_picker_machine.cpp.
| 
 | virtual | 
Destructor.
Definition at line 23 of file qwt_picker_machine.cpp.
| void QwtPickerMachine::reset | ( | ) | 
Set the current state to 0.
Definition at line 46 of file qwt_picker_machine.cpp.
| QwtPickerMachine::SelectionType QwtPickerMachine::selectionType | ( | ) | const | 
Return the selection type.
Definition at line 28 of file qwt_picker_machine.cpp.
| void QwtPickerMachine::setState | ( | int | state | ) | 
Change the current state.
Definition at line 40 of file qwt_picker_machine.cpp.
| int QwtPickerMachine::state | ( | ) | const | 
Return the current state.
Definition at line 34 of file qwt_picker_machine.cpp.
| 
 | pure virtual | 
Transition.
Implemented in QwtPickerTrackerMachine, QwtPickerClickPointMachine, QwtPickerDragPointMachine, QwtPickerClickRectMachine, QwtPickerDragRectMachine, QwtPickerDragLineMachine, and QwtPickerPolygonMachine.