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3 ** Copyright (C) 2015 The Qt Company Ltd.
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6 ** This file is part of the documentation of the Qt Toolkit.
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39 ****************************************************************************/
40
41 #include <QtGui>
42
43 #include "window.h"
44
Window(QWidget * parent)45 Window::Window(QWidget *parent)
46 : QWidget(parent)
47 {
48 QLabel *textLabel = new QLabel(tr("Data:"), this);
49 textBrowser = new QTextBrowser(this);
50
51 QLabel *mimeTypeLabel = new QLabel(tr("MIME types:"), this);
52 mimeTypeCombo = new QComboBox(this);
53
54 QVBoxLayout *layout = new QVBoxLayout(this);
55 layout->addWidget(textLabel);
56 layout->addWidget(textBrowser);
57 layout->addWidget(mimeTypeLabel);
58 layout->addWidget(mimeTypeCombo);
59 /*
60 ...
61 setAcceptDrops(true);
62 */
63 setAcceptDrops(true);
64 setWindowTitle(tr("Drop Actions"));
65 }
66
dragEnterEvent(QDragEnterEvent * event)67 void Window::dragEnterEvent(QDragEnterEvent *event)
68 {
69 if (event->mimeData()->hasFormat("text/plain"))
70 event->acceptProposedAction();
71 }
72
dropEvent(QDropEvent * event)73 void Window::dropEvent(QDropEvent *event)
74 {
75 QMenu actionMenu(this);
76 QAction *copyAction = 0;
77 QAction *moveAction = 0;
78 QAction *linkAction = 0;
79 QAction *ignoreAction = 0;
80 if (event->possibleActions() & Qt::CopyAction)
81 copyAction = actionMenu.addAction(tr("Copy"));
82 if (event->possibleActions() & Qt::MoveAction)
83 moveAction = actionMenu.addAction(tr("Move"));
84 if (event->possibleActions() & Qt::LinkAction)
85 linkAction = actionMenu.addAction(tr("Link"));
86 if (event->possibleActions() & Qt::IgnoreAction)
87 ignoreAction = actionMenu.addAction(tr("Ignore"));
88
89 QAction *result = actionMenu.exec(QCursor::pos());
90
91 if (copyAction && result == copyAction)
92 event->setDropAction(Qt::CopyAction);
93 else if (moveAction && result == moveAction)
94 event->setDropAction(Qt::MoveAction);
95 else if (linkAction && result == linkAction)
96 event->setDropAction(Qt::LinkAction);
97 else {
98 event->setDropAction(Qt::IgnoreAction);
99 return;
100 }
101
102 textBrowser->setPlainText(event->mimeData()->text());
103 mimeTypeCombo->clear();
104 mimeTypeCombo->addItems(event->mimeData()->formats());
105 }
106