qwaylandinputmethodeventbuilder_p.h

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// Copyright (C) 2016 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QWAYLANDINPUTMETHODEVENTBUILDER_H
#define QWAYLANDINPUTMETHODEVENTBUILDER_H
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
 
#include <QInputMethodEvent>
#include <private/qglobal_p.h>
 
#include <utility> // for std::pair
 
QT_BEGIN_NAMESPACE
 
class QWaylandInputMethodEventBuilder
{
public:
    QWaylandInputMethodEventBuilder() = default;
    ~QWaylandInputMethodEventBuilder();
 
    void reset();
 
    void setCursorPosition(int32_t index, int32_t anchor);
    void setDeleteSurroundingText(uint32_t beforeLength, uint32_t afterLength);
 
    void addPreeditStyling(uint32_t index, uint32_t length, uint32_t style);
    void setPreeditCursor(int32_t index);
 
    QInputMethodEvent *buildCommit(const QString &text);
    QInputMethodEvent *buildPreedit(const QString &text);
 
    static int indexFromWayland(const QString &text, int length, int base = 0);
    static int indexToWayland(const QString &text, int length, int base = 0);
 
    static int trimmedIndexFromWayland(const QString &text, int length, int base = 0);
private:
    std::pair<int, int> replacementForDeleteSurrounding();
 
    int32_t m_anchor = 0;
    int32_t m_cursor = 0;
    uint32_t m_deleteBefore = 0;
    uint32_t m_deleteAfter = 0;
 
    int32_t m_preeditCursor = 0;
    QList<QInputMethodEvent::Attribute> m_preeditStyles;
};
 
struct QWaylandInputMethodContentType {
    uint32_t hint = 0;
    uint32_t purpose = 0;
 
    static QWaylandInputMethodContentType convert(Qt::InputMethodHints hints);
    static QWaylandInputMethodContentType convertV3(Qt::InputMethodHints hints);
};
 
 
QT_END_NAMESPACE
 
#endif // QWAYLANDINPUTMETHODEVENTBUILDER_H