Long live Qt 4.5!

1 files changed, 106 insertions, 0 deletions

diff --git a/doc/src/snippets/dropactions/window.cpp b/doc/src/snippets/dropactions/window.cpp
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+++ b/doc/src/snippets/dropactions/window.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#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());
+}