QwtPickerClickRectMachine Class Reference
A state machine for rectangle selections. More...
#include <qwt_picker_machine.h>
Inheritance diagram for QwtPickerClickRectMachine:
Public Member Functions | |
| QwtPickerClickRectMachine () | |
| 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. | |
Detailed Description
A state machine for rectangle selections.
Pressing QwtEventPattern::MouseSelect1 starts the selection, releasing it selects the first point. Pressing it again selects the second point and terminates the selection. Pressing QwtEventPattern::KeySelect1 also starts the selection, a second press selects the first point. A third one selects the second point and terminates the selection.
Definition at line 140 of file qwt_picker_machine.h.
