QwtPickerPolygonMachine - Man Page
Name
QwtPickerPolygonMachine —
A state machine for polygon selections.
Synopsis
#include <qwt_picker_machine.h>
Inherits QwtPickerMachine.
Public Types
enum Command { Begin, Append, Move, End }
typedef QList< Command > CommandList
Public Member Functions
void reset ()
void setState (int)
int state () const
virtual CommandList transition (const QwtEventPattern &, const QEvent *)
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
Member Enumeration Documentation
enum QwtPickerMachine::Command [inherited]
Commands - the output of the state machine.
Member Function Documentation
void QwtPickerMachine::reset () [inherited]
Set the current state to 0.
void QwtPickerMachine::setState (intstate) [inherited]
Change the current state.
int QwtPickerMachine::state () const [inherited]
Return the current state.
QwtPickerMachine::CommandList QwtPickerPolygonMachine::transition (const QwtEventPattern &eventPattern, const QEvent *e) [virtual]
Transition.
Implements QwtPickerMachine.
Author
Generated automatically by Doxygen for Qwt User's Guide from the source code.