QwtPickerPolygonMachine(3)

Hey bestie! This is the QwtPickerPolygonMachine(3) page from the Library Functions Manual — buckle up, we're learning polygon-selection state machine lore. 💅✨

💖 NAME

QwtPickerPolygonMachine — a state machine for polygon selections.

🌸 SYNOPSIS

#include <qwt_picker_machine.h>

Inherits QwtPickerMachine.

✨ Public Member Functions

• QwtPickerPolygonMachine () — Constructor. Iconic beginning vibes.
• virtual QList< Command > transition (const QwtEventPattern &, const QEvent *) override — Transition.

🫶 Public Member Functions inherited from QwtPickerMachine

• QwtPickerMachine (SelectionType) — Constructor.
• virtual ~QwtPickerMachine () — Destructor.
• void reset () — Set the current state to 0.
• int state () const — Return the current state.
• void setState (int) — Change the current state.
• SelectionType selectionType () const — Return the selection type.

🦋 ADDITIONAL INHERITED MEMBERS

💜 Public Types inherited from QwtPickerMachine

enum SelectionType { NoSelection = -1, PointSelection, RectSelection,
           PolygonSelection }

enum Command { Begin, Append, Move, Remove, End }

Commands — the output of a state machine.

🌈 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 205 of file qwt_picker_machine.h.

🛠️ Constructor & Destructor Documentation

QwtPickerPolygonMachine::QwtPickerPolygonMachine ()

Constructor.

Definition at line 384 of file qwt_picker_machine.cpp.

🧠 Member Function Documentation

QList< QwtPickerMachine::Command > QwtPickerPolygonMachine::transition (const QwtEventPattern & eventPattern, const QEvent * event) [override], [virtual]

Transition.

Implements QwtPickerMachine.

Definition at line 390 of file qwt_picker_machine.cpp.

👑 AUTHOR

Generated automatically by Doxygen for Qwt User's Guide from the source code.

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That's the whole page, bestie! Source/version: Qwt User's Guide; date: not listed on this page. QwtPickerPolygonMachine(3) signing off — mwah! 💖✨