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 QtGui module 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 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 66 QT_REQUIRE_CONFIG(draganddrop); 67 68 QT_BEGIN_NAMESPACE 69 70 class QPlatformDrag; 71 72 class QDragPrivate : public QObjectPrivate 73 { 74 public: QDragPrivate()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 91 class Q_GUI_EXPORT QDragManager : public QObject { 92 Q_OBJECT 93 94 public: 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 object()104 QPointer<QDrag> object() const { return m_object; } 105 QObject *source() const; 106 107 private: 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 }; 115 116 QT_END_NAMESPACE 117 118 #endif // QDND_P_H 119