QwtPickerDragLineMachine(3)    Qwt User's Guide    QwtPickerDragLineMachine(3)

NAME
       QwtPickerDragLineMachine - A state machine for line selections.


SYNOPSIS
       #include <qwt_picker_machine.h>

       Inherits QwtPickerMachine.

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

   Additional Inherited Members

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.


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

Version 6.2.0                   Sun Jul 18 2021    QwtPickerDragLineMachine(3)