1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QWINDOWSDRAG_H
#define QWINDOWSDRAG_H
#include "qwindowsinternalmimedata.h"
#include <qpa/qplatformdrag.h>
#include <QtGui/QPixmap>
QT_BEGIN_NAMESPACE
class QWindowsDropMimeData : public QWindowsInternalMimeData {
public:
QWindowsDropMimeData() {}
virtual IDataObject *retrieveDataObject() const;
};
class QWindowsOleDropTarget : public IDropTarget
{
public:
explicit QWindowsOleDropTarget(QWindow *w);
virtual ~QWindowsOleDropTarget();
// IUnknown methods
STDMETHOD(QueryInterface)(REFIID riid, void FAR* FAR* ppvObj);
STDMETHOD_(ULONG, AddRef)(void);
STDMETHOD_(ULONG, Release)(void);
// IDropTarget methods
STDMETHOD(DragEnter)(LPDATAOBJECT pDataObj, DWORD grfKeyState, POINTL pt, LPDWORD pdwEffect);
STDMETHOD(DragOver)(DWORD grfKeyState, POINTL pt, LPDWORD pdwEffect);
STDMETHOD(DragLeave)();
STDMETHOD(Drop)(LPDATAOBJECT pDataObj, DWORD grfKeyState, POINTL pt, LPDWORD pdwEffect);
private:
inline QWindow *findDragOverWindow(const POINTL &pt) const;
void handleDrag(QWindow *window, DWORD grfKeyState, const QPoint &, LPDWORD pdwEffect);
ULONG m_refs;
QWindow *const m_window;
QRect m_answerRect;
QPoint m_lastPoint;
DWORD m_chosenEffect;
DWORD m_lastKeyState;
};
class QWindowsDrag : public QPlatformDrag
{
public:
QWindowsDrag();
virtual ~QWindowsDrag();
virtual QMimeData *platformDropData() { return &m_dropData; }
virtual Qt::DropAction drag(QDrag *drag);
static QWindowsDrag *instance();
IDataObject *dropDataObject() const { return m_dropDataObject; }
void setDropDataObject(IDataObject *dataObject) { m_dropDataObject = dataObject; }
void releaseDropDataObject();
QMimeData *dropData();
QPixmap defaultCursor(Qt::DropAction action) const;
private:
QWindowsDropMimeData m_dropData;
IDataObject *m_dropDataObject;
mutable QPixmap m_copyDragCursor;
mutable QPixmap m_moveDragCursor;
mutable QPixmap m_linkDragCursor;
mutable QPixmap m_ignoreDragCursor;
};
QT_END_NAMESPACE
#endif // QWINDOWSDRAG_H
|
