1 files changed, 125 insertions, 0 deletions
diff --git a/doc/codesnippets/doc/src/snippets/porting4-dropevents/window.cpp b/doc/codesnippets/doc/src/snippets/porting4-dropevents/window.cpp
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+++ b/doc/codesnippets/doc/src/snippets/porting4-dropevents/window.cpp
@@ -0,0 +1,125 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** 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 http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "window.h"
+
+MyWidget::MyWidget(QWidget *parent)
+    : QWidget(parent)
+{
+    QLabel *textLabel = new QLabel(tr("Data:"), this);
+    dataLabel = new QLabel(this);
+    dataLabel->setFixedSize(200, 200);
+
+    QVBoxLayout *layout = new QVBoxLayout(this);
+    layout->addWidget(textLabel);
+    layout->addWidget(dataLabel);
+
+    setAcceptDrops(true);
+    setWindowTitle(tr("Drop Events"));
+}
+
+//! [0]
+void MyWidget::dragEnterEvent(QDragEnterEvent *event)
+{
+    if (event->mimeData()->hasText() || event->mimeData()->hasImage())
+        event->acceptProposedAction();
+}
+//! [0]
+
+//! [1]
+void MyWidget::dropEvent(QDropEvent *event)
+{
+    if (event->mimeData()->hasText())
+        dataLabel->setText(event->mimeData()->text());
+    else if (event->mimeData()->hasImage()) {
+        QVariant imageData = event->mimeData()->imageData();
+        dataLabel->setPixmap(qvariant_cast<QPixmap>(imageData));
+    }
+    event->acceptProposedAction();
+}
+//! [1]
+
+//! [2]
+void MyWidget::mousePressEvent(QMouseEvent *event)
+{
+//! [2]
+    QString text = dataLabel->text();
+    QPixmap iconPixmap(32, 32);
+    iconPixmap.fill(qRgba(255, 0, 0, 127));
+    QImage image(100, 100, QImage::Format_RGB32);
+    image.fill(qRgb(0, 0, 255));
+
+//! [3]
+    if (event->button() == Qt::LeftButton) {
+
+        QDrag *drag = new QDrag(this);
+        QMimeData *mimeData = new QMimeData;
+
+        mimeData->setText(text);
+        mimeData->setImageData(image);
+        drag->setMimeData(mimeData);
+        drag->setPixmap(iconPixmap);
+
+        Qt::DropAction dropAction = drag->exec();
+//! [3]
+        // ...
+//! [4]
+        event->accept();
+    }
+//! [4]
+    else if (event->button() == Qt::MidButton) {
+
+        QDrag *drag = new QDrag(this);
+        QMimeData *mimeData = new QMimeData;
+
+        mimeData->setImageData(image);
+        drag->setMimeData(mimeData);
+        drag->setPixmap(iconPixmap);
+
+        Qt::DropAction dropAction = drag->exec();
+        // ...
+        event->accept();
+    }
+//! [5]
+}
+//! [5]