VirtualBox

source: vbox/trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIDnDDataObject_win.h@ 103977

Last change on this file since 103977 was 103803, checked in by vboxsync, 9 months ago

FE/Qt. bugref:10618. Splitting COMEnums.h file into individual enum header files.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 4.4 KB
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1/* $Id: UIDnDDataObject_win.h 103803 2024-03-12 11:15:18Z vboxsync $ */
2/** @file
3 * VBox Qt GUI - UIDnDDataObject class declaration.
4 */
5
6/*
7 * Copyright (C) 2014-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * SPDX-License-Identifier: GPL-3.0-only
26 */
27
28#ifndef FEQT_INCLUDED_SRC_runtime_UIDnDDataObject_win_h
29#define FEQT_INCLUDED_SRC_runtime_UIDnDDataObject_win_h
30#ifndef RT_WITHOUT_PRAGMA_ONCE
31# pragma once
32#endif
33
34#include <iprt/critsect.h>
35
36#include <QString>
37#include <QStringList>
38#include <QVariant>
39
40/* COM includes: */
41#include "CDndSource.h"
42#include "CSession.h"
43
44/* Forward declarations: */
45class UIDnDHandler;
46
47class UIDnDDataObject : public IDataObject
48{
49public:
50
51 enum Status
52 {
53 Status_Uninitialized = 0,
54 Status_Initialized,
55 Status_Dropping,
56 Status_Dropped,
57 Status_Aborted,
58 Status_32Bit_Hack = 0x7fffffff
59 };
60
61public:
62
63 UIDnDDataObject(UIDnDHandler *pDnDHandler, const QStringList &lstFormats);
64 virtual ~UIDnDDataObject(void);
65
66public: /* IUnknown methods. */
67
68 STDMETHOD(QueryInterface)(REFIID iid, void ** ppvObject);
69 STDMETHOD_(ULONG, AddRef)(void);
70 STDMETHOD_(ULONG, Release)(void);
71
72public: /* IDataObject methods. */
73
74 STDMETHOD(GetData)(LPFORMATETC pFormatEtc, LPSTGMEDIUM pMedium);
75 STDMETHOD(GetDataHere)(LPFORMATETC pFormatEtc, LPSTGMEDIUM pMedium);
76 STDMETHOD(QueryGetData)(LPFORMATETC pFormatEtc);
77 STDMETHOD(GetCanonicalFormatEtc)(LPFORMATETC pFormatEtc, LPFORMATETC pFormatEtcOut);
78 STDMETHOD(SetData)(LPFORMATETC pFormatEtc, LPSTGMEDIUM pMedium, BOOL fRelease);
79 STDMETHOD(EnumFormatEtc)(DWORD dwDirection, IEnumFORMATETC **ppEnumFormatEtc);
80 STDMETHOD(DAdvise)(LPFORMATETC pFormatEtc, DWORD fAdvise, IAdviseSink *pAdvSink, DWORD *pdwConnection);
81 STDMETHOD(DUnadvise)(DWORD dwConnection);
82 STDMETHOD(EnumDAdvise)(IEnumSTATDATA **ppEnumAdvise);
83
84public:
85
86 static const char *ClipboardFormatToString(CLIPFORMAT fmt);
87
88 int Abort(void);
89 void Signal(void);
90 int Signal(const QString &strFormat, const void *pvData, uint32_t cbData);
91
92protected:
93
94 void SetStatus(Status enmStatus);
95
96 bool LookupFormatEtc(LPFORMATETC pFormatEtc, ULONG *puIndex);
97 void RegisterFormat(LPFORMATETC pFormatEtc, CLIPFORMAT clipFormat, TYMED tyMed = TYMED_HGLOBAL,
98 LONG lindex = -1, DWORD dwAspect = DVASPECT_CONTENT, DVTARGETDEVICE *pTargetDevice = NULL);
99
100 /** Pointe rto drag and drop handler. */
101 UIDnDHandler *m_pDnDHandler;
102 /** Current drag and drop status. */
103 Status m_enmStatus;
104 /** Internal reference count of this object. */
105 LONG m_cRefs;
106 /** Number of native formats registered. This can be a different number than supplied with m_lstFormats. */
107 ULONG m_cFormats;
108 /** Array of registered FORMATETC structs. Matches m_cFormats. */
109 FORMATETC *m_pFormatEtc;
110 /** Array of registered STGMEDIUM structs. Matches m_cFormats. */
111 STGMEDIUM *m_pStgMedium;
112 /** Event semaphore used for waiting on status changes. */
113 RTSEMEVENT m_SemEvent;
114 /** List of supported formats. */
115 QStringList m_lstFormats;
116 /** Format of currently retrieved data. */
117 QString m_strFormat;
118 /** The retrieved data as a QVariant. Needed for buffering in case a second format needs the same data,
119 * e.g. CF_TEXT and CF_UNICODETEXT. */
120 QVariant m_vaData;
121 /** Whether the data already was retrieved or not. */
122 bool m_fDataRetrieved;
123 /** The retrieved data as a raw buffer. */
124 void *m_pvData;
125 /** Raw buffer size (in bytes). */
126 uint32_t m_cbData;
127};
128
129#endif /* !FEQT_INCLUDED_SRC_runtime_UIDnDDataObject_win_h */
130
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