QwtPickerClickRectMachine Class Reference
A state machine for rectangle selections. More...
#include <qwt_picker_machine.h>
Inheritance diagram for QwtPickerClickRectMachine:
Public Member Functions | |
virtual CommandList | transition (const QwtEventPattern &, const QEvent *) |
Detailed Description
A state machine for rectangle selections.
Pressing QwtEventPattern::MouseSelect1 starts the selection, releasing it selects the first point. Pressing it again selects the second point and terminates the selection. Pressing QwtEventPattern::KeySelect1 also starts the selection, a second press selects the first point. A third one selects the second point and terminates the selection.
Member Function Documentation
QwtPickerMachine::CommandList QwtPickerClickRectMachine::transition | ( | const QwtEventPattern & | eventPattern, | |
const QEvent * | e | |||
) | [virtual] |
Transition.
Implements QwtPickerMachine.
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