QwtPickerMachine Class Reference

Inheritance diagram for QwtPickerMachine:

[legend]List of all members.

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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 32 of file qwt_picker_machine.h.

Public Types
typedef QList< Command >	CommandList
enum	Command {   Begin,   Append,   Move,   End }
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 ()

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Member Enumeration Documentation

enum QwtPickerMachine::Command

Commands - the output of the state machine. Definition at line 36 of file qwt_picker_machine.h.

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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.

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Member Function Documentation

void QwtPickerMachine::reset (   )

Set the current state to 0. Definition at line 38 of file qwt_picker_machine.cpp. References setState().

void QwtPickerMachine::setState (  int   )

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

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

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

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