QwtPickerDragLineMachine - Man Page
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
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