Qwt User's Guide 5.2.2
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A state machine for polygon selections. More...
#include <qwt_picker_machine.h>
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 *) |
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.
enum QwtPickerMachine::Command [inherited] |
Commands - the output of the state machine.
void QwtPickerMachine::reset | ( | ) | [inherited] |
Set the current state to 0.
void QwtPickerMachine::setState | ( | int | state | ) | [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.