source: trunk/src/gui/kernel/qmime.h@ 321

Last change on this file since 321 was 321, checked in by Dmitry A. Kuminov, 16 years ago

gui/kernel: Prototyped QPMMime and QClipboard helpers.
File size: 6.4 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information (qt-info@nokia.com)
5**
6** This file is part of the QtGui module of the Qt Toolkit.
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9** Commercial Usage
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13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
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17** General Public License version 2.1 as published by the Free Software
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19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
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28** GNU General Public License Usage
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31** Foundation and appearing in the file LICENSE.GPL included in the
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40****************************************************************************/
41
42#ifndef QMIME_H
43#define QMIME_H
44
45#include <QtCore/qmimedata.h>
46
47QT_BEGIN_HEADER
48
49QT_BEGIN_NAMESPACE
50
51QT_MODULE(Gui)
52
53class Q_GUI_EXPORT QMimeSource
54{
55public:
56 virtual ~QMimeSource();
57 virtual const char* format(int n = 0) const = 0;
58 virtual bool provides(const char*) const;
59 virtual QByteArray encodedData(const char*) const = 0;
60};
61
62
63#if defined(Q_WS_WIN)
64
65QT_BEGIN_INCLUDE_NAMESPACE
66typedef struct tagFORMATETC FORMATETC;
67typedef struct tagSTGMEDIUM STGMEDIUM;
68struct IDataObject;
69
70#include <QtCore/qvariant.h>
71QT_END_INCLUDE_NAMESPACE
72
73/*
74 Encapsulation of conversion between MIME and Windows CLIPFORMAT.
75 Not need on X11, as the underlying protocol uses the MIME standard
76 directly.
77*/
78
79class Q_GUI_EXPORT QWindowsMime
80{
81public:
82 QWindowsMime();
83 virtual ~QWindowsMime();
84
85 // for converting from Qt
86 virtual bool canConvertFromMime(const FORMATETC &formatetc, const QMimeData *mimeData) const = 0;
87 virtual bool convertFromMime(const FORMATETC &formatetc, const QMimeData *mimeData, STGMEDIUM * pmedium) const = 0;
88 virtual QVector<FORMATETC> formatsForMime(const QString &mimeType, const QMimeData *mimeData) const = 0;
89
90 // for converting to Qt
91 virtual bool canConvertToMime(const QString &mimeType, IDataObject *pDataObj) const = 0;
92 virtual QVariant convertToMime(const QString &mimeType, IDataObject *pDataObj, QVariant::Type preferredType) const = 0;
93 virtual QString mimeForFormat(const FORMATETC &formatetc) const = 0;
94
95 static int registerMimeType(const QString &mime);
96
97private:
98 friend class QClipboardWatcher;
99 friend class QDragManager;
100 friend class QDropData;
101 friend class QOleDataObject;
102
103 static QWindowsMime *converterToMime(const QString &mimeType, IDataObject *pDataObj);
104 static QStringList allMimesForFormats(IDataObject *pDataObj);
105 static QWindowsMime *converterFromMime(const FORMATETC &formatetc, const QMimeData *mimeData);
106 static QVector<FORMATETC> allFormatsForMime(const QMimeData *mimeData);
107};
108
109#endif
110#if defined(Q_WS_PM)
111
112/*
113 Encapsulation of conversion between MIME and OS/2 PM clipboard.
114*/
115
116class Q_GUI_EXPORT QPMMime
117{
118public:
119 QPMMime();
120 virtual ~QPMMime();
121};
122
123#endif
124#if defined(Q_WS_MAC)
125
126/*
127 Encapsulation of conversion between MIME and Mac flavor.
128 Not needed on X11, as the underlying protocol uses the MIME standard
129 directly.
130*/
131
132class Q_GUI_EXPORT QMacMime { //Obsolete
133 char type;
134public:
135 enum QMacMimeType { MIME_DND=0x01, MIME_CLIP=0x02, MIME_QT_CONVERTOR=0x04, MIME_ALL=MIME_DND|MIME_CLIP };
136 explicit QMacMime(char) { }
137 virtual ~QMacMime() { }
138
139 static void initialize() { }
140
141 static QList<QMacMime*> all(QMacMimeType) { return QList<QMacMime*>(); }
142 static QMacMime *convertor(QMacMimeType, const QString &, int) { return 0; }
143 static QString flavorToMime(QMacMimeType, int) { return QString(); }
144
145 virtual QString convertorName()=0;
146 virtual int countFlavors()=0;
147 virtual int flavor(int index)=0;
148 virtual bool canConvert(const QString &mime, int flav)=0;
149 virtual QString mimeFor(int flav)=0;
150 virtual int flavorFor(const QString &mime)=0;
151 virtual QVariant convertToMime(const QString &mime, QList<QByteArray> data, int flav)=0;
152 virtual QList<QByteArray> convertFromMime(const QString &mime, QVariant data, int flav)=0;
153};
154
155class Q_GUI_EXPORT QMacPasteboardMime {
156 char type;
157public:
158 enum QMacPasteboardMimeType { MIME_DND=0x01,
159 MIME_CLIP=0x02,
160 MIME_QT_CONVERTOR=0x04,
161 MIME_QT3_CONVERTOR=0x08,
162 MIME_ALL=MIME_DND|MIME_CLIP
163 };
164 explicit QMacPasteboardMime(char);
165 virtual ~QMacPasteboardMime();
166
167 static void initialize();
168
169 static QList<QMacPasteboardMime*> all(uchar);
170 static QMacPasteboardMime *convertor(uchar, const QString &mime, QString flav);
171 static QString flavorToMime(uchar, QString flav);
172
173 virtual QString convertorName() = 0;
174
175 virtual bool canConvert(const QString &mime, QString flav) = 0;
176 virtual QString mimeFor(QString flav) = 0;
177 virtual QString flavorFor(const QString &mime) = 0;
178 virtual QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav) = 0;
179 virtual QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav) = 0;
180};
181
182// ### Qt 5: Add const QStringList& QMacPasteboardMime::supportedFlavours()
183Q_GUI_EXPORT void qRegisterDraggedTypes(const QStringList &types);
184#endif // Q_WS_MAC
185
186QT_END_NAMESPACE
187
188QT_END_HEADER
189
190#endif // QMIME_H
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