Qwt User's Guide: QwtPickerMachine Class Reference

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QwtPickerMachine Class Reference

A state machine for QwtPicker selections. More...

#include <qwt_picker_machine.h>

Inheritance diagram for QwtPickerMachine:
[legend]

List of all members.

Public Types

enum  Command {
  Begin,
  Append,
  Move,
  End
}
typedef QList< Command > CommandList

Public Member Functions

virtual ~QwtPickerMachine ()
virtual CommandList transition (const QwtEventPattern &, const QEvent *)=0
void reset ()
int state () const
void setState (int)

Protected Member Functions

 QwtPickerMachine ()

Detailed Description

A state machine for QwtPicker selections.

QwtPickerMachine accepts key and mouse events and translates them into selection commands.

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

Member Enumeration Documentation

enum QwtPickerMachine::Command

Commands - the output of the state machine.

Constructor & Destructor Documentation

QwtPickerMachine::~QwtPickerMachine (  )  [virtual]

Destructor.

QwtPickerMachine::QwtPickerMachine (  )  [protected]

Constructor.

Member Function Documentation

void QwtPickerMachine::reset (  ) 

Set the current state to 0.

void QwtPickerMachine::setState ( int  state  ) 

Change the current state.

int QwtPickerMachine::state (  )  const

Return the current state.

virtual CommandList QwtPickerMachine::transition ( const QwtEventPattern &  ,
const QEvent *   
) [pure virtual]

Transition.

Implemented in QwtPickerClickPointMachine, QwtPickerDragPointMachine, QwtPickerClickRectMachine, QwtPickerDragRectMachine, and QwtPickerPolygonMachine.

Generated on Wed Sep 2 18:37:25 2009 for Qwt User's Guide by  doxygen 1.6.1
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