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39
40#ifndef QDND_P_H
41#define QDND_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists for the convenience
48// of other Qt classes. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtGui/private/qtguiglobal_p.h>
55#include "QtCore/qobject.h"
56#include "QtCore/qmap.h"
57#include "QtCore/qmimedata.h"
58#include "QtGui/qdrag.h"
59#include "QtGui/qpixmap.h"
60#include "QtGui/qcursor.h"
61#include "QtGui/qwindow.h"
62#include "QtCore/qpoint.h"
63#include "private/qobject_p.h"
64#include "QtGui/qbackingstore.h"
65
66QT_REQUIRE_CONFIG(draganddrop);
67
68QT_BEGIN_NAMESPACE
69
70class QPlatformDrag;
71
72class QDragPrivate : public QObjectPrivate
73{
74public:
75 QDragPrivate()
76 : source(nullptr)
77 , target(nullptr)
78 , data(nullptr)
79 { }
80 QObject *source;
81 QObject *target;
82 QMimeData *data;
83 QPixmap pixmap;
84 QPoint hotspot;
85 Qt::DropAction executed_action;
86 Qt::DropActions supported_actions;
87 Qt::DropAction default_action;
88 QMap<Qt::DropAction, QPixmap> customCursors;
89};
90
91class Q_GUI_EXPORT QDragManager : public QObject {
92 Q_OBJECT
93
94public:
95 QDragManager();
96 ~QDragManager();
97 static QDragManager *self();
98
99 Qt::DropAction drag(QDrag *);
100
101 void setCurrentTarget(QObject *target, bool dropped = false);
102 QObject *currentTarget() const;
103
104 QPointer<QDrag> object() const { return m_object; }
105 QObject *source() const;
106
107private:
108 QObject *m_currentDropTarget;
109 QPlatformDrag *m_platformDrag;
110 QPointer<QDrag> m_object;
111
112 static QDragManager *m_instance;
113 Q_DISABLE_COPY_MOVE(QDragManager)
114};
115
116QT_END_NAMESPACE
117
118#endif // QDND_P_H
119

source code of qtbase/src/gui/kernel/qdnd_p.h