1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the plugins of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QWINDOWSMIME_H 41 #define QWINDOWSMIME_H 42 43 #include <QtCore/qt_windows.h> 44 45 #include <QtCore/qvector.h> 46 #include <QtCore/qvariant.h> 47 48 QT_BEGIN_NAMESPACE 49 50 class QDebug; 51 class QMimeData; 52 53 class QWindowsMime 54 { 55 Q_DISABLE_COPY_MOVE(QWindowsMime) 56 public: 57 QWindowsMime(); 58 virtual ~QWindowsMime(); 59 60 // for converting from Qt 61 virtual bool canConvertFromMime(const FORMATETC &formatetc, const QMimeData *mimeData) const = 0; 62 virtual bool convertFromMime(const FORMATETC &formatetc, const QMimeData *mimeData, STGMEDIUM * pmedium) const = 0; 63 virtual QVector<FORMATETC> formatsForMime(const QString &mimeType, const QMimeData *mimeData) const = 0; 64 65 // for converting to Qt 66 virtual bool canConvertToMime(const QString &mimeType, IDataObject *pDataObj) const = 0; 67 virtual QVariant convertToMime(const QString &mimeType, IDataObject *pDataObj, QVariant::Type preferredType) const = 0; 68 virtual QString mimeForFormat(const FORMATETC &formatetc) const = 0; 69 70 static int registerMimeType(const QString &mime); 71 }; 72 73 class QWindowsMimeConverter 74 { 75 Q_DISABLE_COPY_MOVE(QWindowsMimeConverter) 76 public: 77 QWindowsMimeConverter(); 78 ~QWindowsMimeConverter(); 79 80 QWindowsMime *converterToMime(const QString &mimeType, IDataObject *pDataObj) const; 81 QStringList allMimesForFormats(IDataObject *pDataObj) const; 82 QWindowsMime *converterFromMime(const FORMATETC &formatetc, const QMimeData *mimeData) const; 83 QVector<FORMATETC> allFormatsForMime(const QMimeData *mimeData) const; 84 85 // Convenience. 86 QVariant convertToMime(const QStringList &mimeTypes, IDataObject *pDataObj, QVariant::Type preferredType, 87 QString *format = nullptr) const; 88 89 void registerMime(QWindowsMime *mime); unregisterMime(QWindowsMime * mime)90 void unregisterMime(QWindowsMime *mime) { m_mimes.removeOne(mime); } 91 92 static QString clipboardFormatName(int cf); 93 94 private: 95 void ensureInitialized() const; 96 97 mutable QVector<QWindowsMime *> m_mimes; 98 mutable int m_internalMimeCount = 0; 99 }; 100 101 #ifndef QT_NO_DEBUG_STREAM 102 QDebug operator<<(QDebug, const FORMATETC &); 103 QDebug operator<<(QDebug d, IDataObject *); 104 #endif 105 106 QT_END_NAMESPACE 107 108 #endif // QWINDOWSMIME_H 109