keyparser.h

/*
    SPDX-FileCopyrightText: 2008 Erlend Hamberg <ehamberg@gmail.com>
    SPDX-FileCopyrightText: 2008 Evgeniy Ivanov <powerfox@kde.ru>
 
    SPDX-License-Identifier: LGPL-2.0-or-later
*/
 
#ifndef KATEVI_KEY_PARSER_H
#define KATEVI_KEY_PARSER_H
 
#include <QChar>
#include <QHash>
#include <QString>
#include <ktexteditor_export.h>
 
class QKeyEvent;
 
namespace KateVi
{
 
class KeyEvent;
 
/**
 * for encoding keypresses w/ modifiers into an internal QChar representation and back again to a
 * descriptive text string
 */
class KeyParser
{
private:
    KeyParser();
 
public:
    KTEXTEDITOR_EXPORT static KeyParser *self();
    ~KeyParser()
    {
        m_instance = nullptr;
    }
    KeyParser(const KeyParser &) = delete;
    KeyParser &operator=(const KeyParser &) = delete;
 
    KTEXTEDITOR_EXPORT const QString encodeKeySequence(const QString &keys) const;
    KTEXTEDITOR_EXPORT const QString decodeKeySequence(const QString &keys) const;
    QString qt2vi(int key) const;
    KTEXTEDITOR_EXPORT int vi2qt(const QString &keypress) const;
    int encoded2qt(const QString &keypress) const;
    KTEXTEDITOR_EXPORT const QChar KeyEventToQChar(const QKeyEvent &keyEvent);
    const QChar KeyEventToQChar(const KeyEvent &keyEvent);
 
private:
    void initKeyTables();
    const QChar KeyEventToQChar(int keyCode, const QString &text, Qt::KeyboardModifiers mods) const;
 
    QHash<int, QString> m_qt2katevi;
    QHash<QString, int> m_katevi2qt;
    QHash<QString, int> m_nameToKeyCode;
    QHash<int, QString> m_keyCodeToName;
 
    static KeyParser *m_instance;
};
 
}
 
#endif /* KATEVI_KEY_PARSER_H */