qwindowsmimeregistry.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QWINDOWSMIMEREGISTRY_H
#define QWINDOWSMIMEREGISTRY_H
 
 
#include <QtCore/qt_windows.h>
 
#include <QtGui/qwindowsmimeconverter.h>
#include <QtCore/qlist.h>
#include <QtCore/qvariant.h>
 
QT_BEGIN_NAMESPACE
 
class QDebug;
class QMimeData;
 
class QWindowsMimeRegistry
{
    Q_DISABLE_COPY_MOVE(QWindowsMimeRegistry)
public:
    using QWindowsMimeConverter = QWindowsMimeConverter;
 
    QWindowsMimeRegistry();
    ~QWindowsMimeRegistry();
 
    QWindowsMimeConverter *converterToMime(const QString &mimeType, IDataObject *pDataObj) const;
    QStringList allMimesForFormats(IDataObject *pDataObj) const;
    QWindowsMimeConverter *converterFromMime(const FORMATETC &formatetc, const QMimeData *mimeData) const;
    QList<FORMATETC> allFormatsForMime(const QMimeData *mimeData) const;
 
    // Convenience.
    QVariant convertToMime(const QStringList &mimeTypes, IDataObject *pDataObj, QMetaType preferredType,
                           QString *format = nullptr) const;
 
    void registerMime(QWindowsMimeConverter *mime);
    void unregisterMime(QWindowsMimeConverter *mime) { m_mimes.removeOne(mime); }
 
    static int registerMimeType(const QString &mime);
 
    static QString clipboardFormatName(int cf);
 
private:
    void ensureInitialized() const;
 
    mutable QList<QWindowsMimeConverter *> m_mimes;
    mutable int m_internalMimeCount = 0;
};
 
#ifndef QT_NO_DEBUG_STREAM
QDebug operator<<(QDebug, const FORMATETC &);
QDebug operator<<(QDebug d, IDataObject *);
#endif
 
QT_END_NAMESPACE
 
#endif // QWINDOWSMIMEREGISTRY_H