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

QwtPickerDragRectMachine - A state machine for rectangle selections.

#include <qwt_picker_machine.h>

Inherits QwtPickerMachine.

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

A state machine for rectangle 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.

See also

QwtEventPattern::MousePatternCode, QwtEventPattern::KeyPatternCode

Definition at line 161 of file qwt_picker_machine.h.

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Sun Jul 18 2021 Version 6.2.0