QwtPickerMachine(3)

💅 QwtPickerMachine(3) — from the Library Functions Manual (Qwt User's Guide, bestie)

okay so picture this: you're deep in the Qwt docs, the vibe is immaculate, and you've just met QwtPickerMachine — a state machine for QwtPicker selections. she's giving main character energy fr fr 🎀

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✨ NAME ✨

QwtPickerMachine — a state machine for QwtPicker selections. no cap, that's literally her whole job 💖

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🦋 SYNOPSIS 🦋

#include <qwt_picker_machine.h>

she's the blueprint, the moment, the base class — and these icons all inherited from her 👑:

• QwtPickerClickPointMachine
• QwtPickerClickRectMachine
• QwtPickerDragLineMachine
• QwtPickerDragPointMachine
• QwtPickerDragRectMachine
• QwtPickerPolygonMachine
• QwtPickerTrackerMachine

🌸 Public Types 🌸

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

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

the Command enum? that's Commands - the output of a state machine. she speaks in commands and we listen 💅

💜 Public Member Functions 💜

• QwtPickerMachine(SelectionType) — Constructor. birth of an icon ✨
• virtual ~QwtPickerMachine() — Destructor. she's leaving but the legacy stays 🫶
• virtual QList<Command> transition(const QwtEventPattern &, const QEvent *) = 0 — Transition. pure virtual, so she cannot do it alone — your subclasses gotta step up 😭
• void reset() — Set the current state to 0. factory reset but make it cute 🧚
• int state() const — Return the current state. where is she at emotionally? this tells you 💀
• void setState(int) — Change the current state. we're pivoting, we're rebranding 🔥
• SelectionType selectionType() const — Return the selection type. what kind of selection is this giving? 🌈

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🌟 Detailed Description 🌟

A state machine for QwtPicker selections.

QwtPickerMachine accepts key and mouse events and translates them into selection commands. literally a translator for vibes — input goes in, commands come out, periodt 💫

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

Definition at line 28 of file qwt_picker_machine.h.

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🎀 Member Enumeration Documentation 🎀

enum QwtPickerMachine::Command

Commands - the output of a state machine.

Definition at line 51 of file qwt_picker_machine.h.

enum QwtPickerMachine::SelectionType

Type of a selection.

See also: selectionType()

Enumerator — each one has her own little personality 🍓

• NoSelection — The state machine not usable for any type of selection. she said "not me, not today" 🙈
• PointSelection — The state machine is for selecting a single point. one point, one moment, one icon ⭐
• RectSelection — The state machine is for selecting a rectangle (2 points). two points, a whole rectangle, slay 🦋
• PolygonSelection — The state machine is for selecting a polygon (many points). many points, so many, obsessed 💖

Definition at line 35 of file qwt_picker_machine.h.

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💫 Constructor & Destructor Documentation 💫

QwtPickerMachine::QwtPickerMachine(SelectionType type) [explicit]

Constructor. she's here, she's explicit, she's not being implicit about it 💅

Definition at line 16 of file qwt_picker_machine.cpp.

QwtPickerMachine::~QwtPickerMachine() [virtual]

Destructor. the goodbye era 😭

Definition at line 23 of file qwt_picker_machine.cpp.

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🔥 Member Function Documentation 🔥

void QwtPickerMachine::reset()

Set the current state to 0.

Definition at line 46 of file qwt_picker_machine.cpp.

QwtPickerMachine::SelectionType QwtPickerMachine::selectionType() const

Return the selection type.

Definition at line 28 of file qwt_picker_machine.cpp.

void QwtPickerMachine::setState(int state)

Change the current state.

Definition at line 40 of file qwt_picker_machine.cpp.

int QwtPickerMachine::state() const

Return the current state.

Definition at line 34 of file qwt_picker_machine.cpp.

virtual QList<Command> QwtPickerMachine::transition(const QwtEventPattern &, const QEvent *) [pure virtual]

Transition.

Implemented in: QwtPickerClickPointMachine, QwtPickerClickRectMachine, QwtPickerDragLineMachine, QwtPickerDragPointMachine, QwtPickerDragRectMachine, QwtPickerPolygonMachine, and QwtPickerTrackerMachine.

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👑 Author 👑

Generated automatically by Doxygen for Qwt User's Guide from the source code. yes bestie, the robots wrote the docs, but the vibe? the vibe is all hers ✨

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and that's the whole page, no notes ✨ this little masterpiece comes to you from the Qwt User's Guide (source + version included, iykyk) and it's dated QwtPickerMachine(3) — go forth and select something iconic 💖🎀🦋