Public Types | Public Member Functions | Private Attributes | List of all members
QwtPickerMachine Class Referenceabstract

A state machine for QwtPicker selections. More...

#include <qwt_picker_machine.h>

Inheritance diagram for QwtPickerMachine:
Inheritance graph
[legend]

Public Types

enum  Command {
  Begin, Append, Move, Remove,
  End
}
 Commands - the output of a state machine. More...
 
enum  SelectionType { NoSelection = -1, PointSelection, RectSelection, PolygonSelection }
 

Public Member Functions

 QwtPickerMachine (SelectionType)
 Constructor. More...
 
void reset ()
 Set the current state to 0. More...
 
SelectionType selectionType () const
 Return the selection type. More...
 
void setState (int)
 Change the current state. More...
 
int state () const
 Return the current state. More...
 
virtual QList< Commandtransition (const QwtEventPattern &, const QEvent *)=0
 Transition. More...
 
virtual ~QwtPickerMachine ()
 Destructor. More...
 

Private Attributes

const SelectionType d_selectionType
 
int d_state
 

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.

Member Enumeration Documentation

Commands - the output of a state machine.

Enumerator
Begin 
Append 
Move 
Remove 
End 

Definition at line 51 of file qwt_picker_machine.h.

Type of a selection.

See also
selectionType()
Enumerator
NoSelection 

The state machine not usable for any type of selection.

PointSelection 

The state machine is for selecting a single point.

RectSelection 

The state machine is for selecting a rectangle (2 points).

PolygonSelection 

The state machine is for selecting a polygon (many points).

Definition at line 35 of file qwt_picker_machine.h.

Constructor & Destructor Documentation

QwtPickerMachine::QwtPickerMachine ( SelectionType  type)
explicit

Constructor.

Definition at line 15 of file qwt_picker_machine.cpp.

QwtPickerMachine::~QwtPickerMachine ( )
virtual

Destructor.

Definition at line 22 of file qwt_picker_machine.cpp.

Member Function Documentation

void QwtPickerMachine::reset ( )

Set the current state to 0.

Definition at line 45 of file qwt_picker_machine.cpp.

QwtPickerMachine::SelectionType QwtPickerMachine::selectionType ( ) const

Return the selection type.

Definition at line 27 of file qwt_picker_machine.cpp.

void QwtPickerMachine::setState ( int  state)

Change the current state.

Definition at line 39 of file qwt_picker_machine.cpp.

int QwtPickerMachine::state ( ) const

Return the current state.

Definition at line 33 of file qwt_picker_machine.cpp.

virtual QList<Command> QwtPickerMachine::transition ( const QwtEventPattern ,
const QEvent *   
)
pure virtual

Member Data Documentation

const SelectionType QwtPickerMachine::d_selectionType
private

Definition at line 74 of file qwt_picker_machine.h.

int QwtPickerMachine::d_state
private

Definition at line 75 of file qwt_picker_machine.h.


The documentation for this class was generated from the following files:


plotjuggler
Author(s): Davide Faconti
autogenerated on Sat Jul 6 2019 03:44:18