QwtPickerDragLineMachine
A state machine for line selections.
- Provided by: libqwt-doc (Version: 6.1.2-5)
- Source: qwt
- Report a bug
SYNOPSIS
#include <qwt_picker_machine.h>
Inherits QwtPickerMachine.
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
Author
Generated automatically by Doxygen for Qwt User's Guide from the source code.