QwtPickerMachine

NAME

SYNOPSIS

Inherited by QwtPickerClickPointMachine, QwtPickerClickRectMachine, QwtPickerDragPointMachine, QwtPickerDragRectMachine, and QwtPickerPolygonMachine.

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

Definition at line 28 of file qwt_picker_machine.h.  

Public Types

enum Command { Begin, Append, Move, End }
 

Public Member Functions

virtual ~QwtPickerMachine ()

virtual QValueList< Command > transition (const QwtEventPattern &, const QEvent *)=0

void reset ()
 

Protected Member Functions

QwtPickerMachine ()

int state () const

void setState (int)
 

Constructor & Destructor Documentation

QwtPickerMachine::~QwtPickerMachine () [virtual]

Destructor.

Definition at line 21 of file qwt_picker_machine.cpp.  

QwtPickerMachine::QwtPickerMachine () [protected]

Constructor.

Definition at line 15 of file qwt_picker_machine.cpp.  

Member Function Documentation

void QwtPickerMachine::reset ()

Set the current state to 0.

Definition at line 38 of file qwt_picker_machine.cpp.

References setState().

Referenced by QwtPicker::widgetKeyPressEvent().  

void QwtPickerMachine::setState (int) [protected]

Change the current state.

Definition at line 32 of file qwt_picker_machine.cpp.

Referenced by reset(), QwtPickerPolygonMachine::transition(), QwtPickerDragRectMachine::transition(), QwtPickerClickRectMachine::transition(), and QwtPickerDragPointMachine::transition().  

int QwtPickerMachine::state () const [protected]

Return the current state.

Definition at line 26 of file qwt_picker_machine.cpp.

Referenced by QwtPickerPolygonMachine::transition(), QwtPickerDragRectMachine::transition(), QwtPickerClickRectMachine::transition(), and QwtPickerDragPointMachine::transition().  

virtual QValueList<Command> QwtPickerMachine::transition (const QwtEventPattern &, const QEvent *) [pure virtual]

Transition.

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

Referenced by QwtPicker::transition().

Author

Generated automatically by Doxygen for Qwt User's Guide from the source code.

Index

NAME

SYNOPSIS

Detailed Description

Public Types

Public Member Functions

Protected Member Functions

Constructor & Destructor Documentation

QwtPickerMachine::~QwtPickerMachine () [virtual]

QwtPickerMachine::QwtPickerMachine () [protected]

Member Function Documentation

void QwtPickerMachine::reset ()

void QwtPickerMachine::setState (int) [protected]

int QwtPickerMachine::state () const [protected]

virtual QValueList<Command> QwtPickerMachine::transition (const QwtEventPattern &, const QEvent *) [pure virtual]

Author