QwtPickerPolygonMachine Class Reference

Inheritance diagram for QwtPickerPolygonMachine:

Inheritance graph
Collaboration diagram for QwtPickerPolygonMachine:

Collaboration graph
List of all members.

Detailed Description

A state machine for polygon selections.

Pressing QwtEventPattern::MouseSelect1 or QwtEventPattern::KeySelect1 starts the selection and selects the first point, or appends a point. Pressing QwtEventPattern::MouseSelect2 or QwtEventPattern::KeySelect2 appends the last point and terminates the selection.

See also:
QwtEventPattern::MousePatternCode, QwtEventPattern::KeyPatternCode

Definition at line 146 of file qwt_picker_machine.h.

Public Member Functions

virtual CommandList transition (const QwtEventPattern &, const QEvent *)

Member Function Documentation

QwtPickerMachine::CommandList QwtPickerPolygonMachine::transition const QwtEventPattern ,
const QEvent * 


Implements QwtPickerMachine.

Definition at line 300 of file qwt_picker_machine.cpp.

References QwtEventPattern::mouseMatch(), QwtPickerMachine::setState(), and QwtPickerMachine::state().

Generated on Mon Feb 26 21:24:45 2007 for Qwt User's Guide by  doxygen 1.4.6