Qwt User's Guide  6.0.2
Public Member Functions
QwtPickerClickRectMachine Class Reference

#include <qwt_picker_machine.h>

Inheritance diagram for QwtPickerClickRectMachine:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 QwtPickerClickRectMachine ()
virtual QList< Commandtransition (const QwtEventPattern &, const QEvent *)
- Public Member Functions inherited from QwtPickerMachine
 QwtPickerMachine (SelectionType)
virtual ~QwtPickerMachine ()
void reset ()
SelectionType selectionType () const
void setState (int)
int state () const

Additional Inherited Members

- Public Types inherited from QwtPickerMachine
enum  Command {
  Begin,
  Append,
  Move,
  Remove,
  End
}
enum  SelectionType {
  NoSelection = -1,
  PointSelection,
  RectSelection,
  PolygonSelection
}

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.

See also:
QwtEventPattern::MousePatternCode, QwtEventPattern::KeyPatternCode