QwtPickerClickRectMachine - A state machine for rectangle selections.

NAME  SYNOPSIS  Public Member Functions  Additional Inherited Members  Detailed Description  Constructor & Destructor Documentation  QwtPickerClickRectMachine::QwtPickerClickRectMachine ()  Member Function Documentation  QList< QwtPickerMachine::Command > QwtPickerClickRectMachine::transition(const QwtEventPattern & eventPattern, const QEvent * event)[override], [virtual]  Author 

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NAME

QwtPickerClickRectMachine − A state machine for rectangle selections.

SYNOPSIS

#include <qwt_picker_machine.h>

Inherits QwtPickerMachine.

Public Member Functions

QwtPickerClickRectMachine ()
Constructor.
virtual QList< Command > transition (const QwtEventPattern &, const QEvent *) override
Transition.

Public Member Functions inherited from QwtPickerMachine

QwtPickerMachine (SelectionType)
Constructor.
virtual ˜QwtPickerMachine ()
Destructor.
void reset ()
Set the current state to 0.
int state () const
Return the current state.
void setState (int)
Change the current state.
SelectionType selectionType () const
Return the selection type.

Additional Inherited Members

Public Types inherited from QwtPickerMachine

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

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

Definition at line 140 of file qwt_picker_machine.h.

Constructor & Destructor Documentation

QwtPickerClickRectMachine::QwtPickerClickRectMachine ()

Constructor.

Definition at line 213 of file qwt_picker_machine.cpp.

Member Function Documentation

QList< QwtPickerMachine::Command > QwtPickerClickRectMachine::transition(const QwtEventPattern & eventPattern, const QEvent * event)[override], [virtual]

Transition.

Implements QwtPickerMachine.

Definition at line 219 of file qwt_picker_machine.cpp.

Author

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

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