1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the documentation of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include <QtGui>

    43 

    44 #include "window.h"

    45 

    46 Window::Window(QWidget *parent)

    47     : QWidget(parent)

    48 {

    49     QLabel *textLabel = new QLabel(tr("Data:"), this);

    50     textBrowser = new QTextBrowser(this);

    51 

    52     QLabel *mimeTypeLabel = new QLabel(tr("MIME types:"), this);

    53     mimeTypeCombo = new QComboBox(this);

    54 

    55     QVBoxLayout *layout = new QVBoxLayout(this);

    56     layout->addWidget(textLabel);

    57     layout->addWidget(textBrowser);

    58     layout->addWidget(mimeTypeLabel);

    59     layout->addWidget(mimeTypeCombo);

    60 /*

    61     ...

    62     setAcceptDrops(true);

    63 */

    64     setAcceptDrops(true);

    65     setWindowTitle(tr("Drop Actions"));

    66 }

    67 

    68 void Window::dragEnterEvent(QDragEnterEvent *event)

    69 {

    70     if (event->mimeData()->hasFormat("text/plain"))

    71         event->acceptProposedAction();

    72 }

    73 

    74 void Window::dropEvent(QDropEvent *event)

    75 {

    76     QMenu actionMenu(this);

    77     QAction *copyAction = 0;

    78     QAction *moveAction = 0;

    79     QAction *linkAction = 0;

    80     QAction *ignoreAction = 0;

    81     if (event->possibleActions() & Qt::CopyAction)

    82         copyAction = actionMenu.addAction(tr("Copy"));

    83     if (event->possibleActions() & Qt::MoveAction)

    84         moveAction = actionMenu.addAction(tr("Move"));

    85     if (event->possibleActions() & Qt::LinkAction)

    86         linkAction = actionMenu.addAction(tr("Link"));

    87     if (event->possibleActions() & Qt::IgnoreAction)

    88         ignoreAction = actionMenu.addAction(tr("Ignore"));

    89 

    90     QAction *result = actionMenu.exec(QCursor::pos());

    91 

    92     if (copyAction && result == copyAction)

    93         event->setDropAction(Qt::CopyAction);

    94     else if (moveAction && result == moveAction)

    95         event->setDropAction(Qt::MoveAction);

    96     else if (linkAction && result == linkAction)

    97         event->setDropAction(Qt::LinkAction);

    98     else {

    99         event->setDropAction(Qt::IgnoreAction);

   100         return;

   101     }

   102 

   103     textBrowser->setPlainText(event->mimeData()->text());

   104     mimeTypeCombo->clear();

   105     mimeTypeCombo->addItems(event->mimeData()->formats());

   106 }