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 QPLATFORMDRAG_H 41 #define QPLATFORMDRAG_H 42 43 // 44 // W A R N I N G 45 // ------------- 46 // 47 // This file is part of the QPA API and is not meant to be used 48 // in applications. Usage of this API may make your code 49 // source and binary incompatible with future versions of Qt. 50 // 51 52 #include <QtGui/qtguiglobal.h> 53 #include <QtGui/QPixmap> 54 55 QT_REQUIRE_CONFIG(draganddrop); 56 57 QT_BEGIN_NAMESPACE 58 59 class QMimeData; 60 class QMouseEvent; 61 class QDrag; 62 class QObject; 63 class QEvent; 64 class QPlatformDragPrivate; 65 66 class Q_GUI_EXPORT QPlatformDropQtResponse 67 { 68 public: 69 QPlatformDropQtResponse(bool accepted, Qt::DropAction acceptedAction); 70 bool isAccepted() const; 71 Qt::DropAction acceptedAction() const; 72 73 private: 74 bool m_accepted; 75 Qt::DropAction m_accepted_action; 76 77 }; 78 79 class Q_GUI_EXPORT QPlatformDragQtResponse : public QPlatformDropQtResponse 80 { 81 public: 82 QPlatformDragQtResponse(bool accepted, Qt::DropAction acceptedAction, QRect answerRect); 83 84 QRect answerRect() const; 85 86 private: 87 QRect m_answer_rect; 88 }; 89 90 class Q_GUI_EXPORT QPlatformDrag 91 { 92 Q_DECLARE_PRIVATE(QPlatformDrag) 93 public: 94 Q_DISABLE_COPY_MOVE(QPlatformDrag) 95 96 QPlatformDrag(); 97 virtual ~QPlatformDrag(); 98 99 QDrag *currentDrag() const; 100 101 virtual Qt::DropAction drag(QDrag *m_drag) = 0; 102 virtual void cancelDrag(); 103 void updateAction(Qt::DropAction action); 104 105 virtual Qt::DropAction defaultAction(Qt::DropActions possibleActions, Qt::KeyboardModifiers modifiers) const; 106 107 static QPixmap defaultPixmap(); 108 109 virtual bool ownsDragObject() const; 110 111 private: 112 QPlatformDragPrivate *d_ptr; 113 }; 114 115 QT_END_NAMESPACE 116 117 #endif 118