Qwt User's Guide  6.1.3
QwtPickerDragPointMachine Class Reference

A state machine for point selections. More...

#include <qwt_picker_machine.h>

Inheritance diagram for QwtPickerDragPointMachine:

Public Member Functions

 QwtPickerDragPointMachine ()
virtual QList< Commandtransition (const QwtEventPattern &, const QEvent *)
- Public Member Functions inherited from QwtPickerMachine
 QwtPickerMachine (SelectionType)
virtual ~QwtPickerMachine ()
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,
 Commands - the output of a state machine.

Detailed Description

A state machine for point selections.

Pressing QwtEventPattern::MouseSelect1 or QwtEventPattern::KeySelect1 starts the selection, releasing QwtEventPattern::MouseSelect1 or a second press of QwtEventPattern::KeySelect1 terminates it.