A state machine for line selections. More...

#include <qwt_picker_machine.h>

Inheritance diagram for QwtPickerDragLineMachine:

Public Member Functions
	QwtPickerDragLineMachine ()
	Constructor.
virtual QList< Command >	transition (const QwtEventPattern &, const QEvent *)
	Transition.

Detailed Description

A state machine for line selections.

Pressing QwtEventPattern::MouseSelect1 selects the first point, releasing it the second point. Pressing QwtEventPattern::KeySelect1 also selects the first point, a second press selects the second point and terminates the selection.

A common use case of QwtPickerDragLineMachine are pickers for distance measurements.

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

Definition at line 185 of file qwt_picker_machine.h.

Constructor & Destructor Documentation

QwtPickerDragLineMachine::QwtPickerDragLineMachine ( )

Constructor.

Definition at line 472 of file qwt_picker_machine.cpp.

Member Function Documentation

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

Transition.

Implements QwtPickerMachine.

Definition at line 478 of file qwt_picker_machine.cpp.

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

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation