keysequenceeditor.h

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#pragma once
 
#include <QtQmlIntegration/qqmlintegration.h>
#include <qtmetamacros.h>
 
#include <QKeySequence>
#include <QQuickItem>
#include <QString>
#include <QVector>
 
class QKeyEvent;
class QFocusEvent;
 
class KeySequenceEditor : public QQuickItem {
  Q_OBJECT
  // The sequence that is current in the settings (e.g. is current when the
  // settings dialog was opened).
  Q_PROPERTY(QString originalSequence READ originalSequence WRITE
                 setOriginalSequence NOTIFY originalSequenceChanged)
  // The last sequence that was successfully entered.
  Q_PROPERTY(QString newSequence READ newSequence NOTIFY newSequenceChanged)
  Q_PROPERTY(QString displaySequence READ displaySequence NOTIFY
                 displaySequenceChanged)
  Q_PROPERTY(bool hasChanged READ hasChanged NOTIFY hasChangedChanged)
  QML_ELEMENT
 
 public:
  KeySequenceEditor();
 
  [[nodiscard]] QString originalSequence() const;
  void setOriginalSequence(const QString &originalSequence);
 
  [[nodiscard]] QString newSequence() const;
 
  [[nodiscard]] QString displaySequence() const;
 
  [[nodiscard]] bool hasChanged() const;
 
 public slots:
  void reset();
 
 signals:
  void originalSequenceChanged();
  void newSequenceChanged();
  void displaySequenceChanged();
  void hasChangedChanged();
 
 protected:
  void keyPressEvent(QKeyEvent *event) override;
  void keyReleaseEvent(QKeyEvent *event) override;
  void focusInEvent(QFocusEvent *event) override;
  void focusOutEvent(QFocusEvent *event) override;
 
 private:
  void setCurrentSequence(const QString &currentSequence);
  void setNewSequence(const QString &newSequence);
 
  void resetKeysPressed();
 
  void accept();
  void cancel();
  [[nodiscard]] bool validate(const QKeySequence &sequence) const;
 
  QKeySequence m_OriginalSequence;
  QKeySequence m_CurrentSequence;
  QKeySequence m_NewSequence;
  int m_CurrentKeyIndex{0};
  QVector<int> m_KeysPressed;
};