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
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of PySide2.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtWidgets>
#include "window.h"
Window::Window(QWidget *parent)
: QWidget(parent)
{
QLabel *textLabel = new QLabel(tr("Data:"), this);
textBrowser = new QTextBrowser(this);
QLabel *mimeTypeLabel = new QLabel(tr("MIME types:"), this);
mimeTypeCombo = new QComboBox(this);
QVBoxLayout *layout = new QVBoxLayout(this);
layout->addWidget(textLabel);
layout->addWidget(textBrowser);
layout->addWidget(mimeTypeLabel);
layout->addWidget(mimeTypeCombo);
/*
...
setAcceptDrops(true);
*/
setAcceptDrops(true);
setWindowTitle(tr("Drop Actions"));
}
void Window::dragEnterEvent(QDragEnterEvent *event)
{
if (event->mimeData()->hasFormat("text/plain"))
event->acceptProposedAction();
}
void Window::dropEvent(QDropEvent *event)
{
QMenu actionMenu(this);
QAction *copyAction = 0;
QAction *moveAction = 0;
QAction *linkAction = 0;
QAction *ignoreAction = 0;
if (event->possibleActions() & Qt::CopyAction)
copyAction = actionMenu.addAction(tr("Copy"));
if (event->possibleActions() & Qt::MoveAction)
moveAction = actionMenu.addAction(tr("Move"));
if (event->possibleActions() & Qt::LinkAction)
linkAction = actionMenu.addAction(tr("Link"));
if (event->possibleActions() & Qt::IgnoreAction)
ignoreAction = actionMenu.addAction(tr("Ignore"));
QAction *result = actionMenu.exec(QCursor::pos());
if (copyAction && result == copyAction)
event->setDropAction(Qt::CopyAction);
else if (moveAction && result == moveAction)
event->setDropAction(Qt::MoveAction);
else if (linkAction && result == linkAction)
event->setDropAction(Qt::LinkAction);
else {
event->setDropAction(Qt::IgnoreAction);
return;
}
textBrowser->setPlainText(event->mimeData()->text());
mimeTypeCombo->clear();
mimeTypeCombo->addItems(event->mimeData()->formats());
}
|
