1 files changed, 87 insertions, 0 deletions
diff --git a/tests/manual/examples/widgets/draganddrop/puzzle/pieceslist.cpp b/tests/manual/examples/widgets/draganddrop/puzzle/pieceslist.cpp
new file mode 100644
index 0000000000..0c7e771e42
--- /dev/null
+++ b/tests/manual/examples/widgets/draganddrop/puzzle/pieceslist.cpp
@@ -0,0 +1,87 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "pieceslist.h"
+
+#include <QDrag>
+#include <QDragEnterEvent>
+#include <QMimeData>
+
+PiecesList::PiecesList(int pieceSize, QWidget *parent)
+    : QListWidget(parent), m_PieceSize(pieceSize)
+{
+    setDragEnabled(true);
+    setViewMode(QListView::IconMode);
+    setIconSize(QSize(m_PieceSize, m_PieceSize));
+    setSpacing(10);
+    setAcceptDrops(true);
+    setDropIndicatorShown(true);
+}
+
+void PiecesList::dragEnterEvent(QDragEnterEvent *event)
+{
+    if (event->mimeData()->hasFormat(PiecesList::puzzleMimeType()))
+        event->accept();
+    else
+        event->ignore();
+}
+
+void PiecesList::dragMoveEvent(QDragMoveEvent *event)
+{
+    if (event->mimeData()->hasFormat(PiecesList::puzzleMimeType())) {
+        event->setDropAction(Qt::MoveAction);
+        event->accept();
+    } else {
+        event->ignore();
+    }
+}
+
+void PiecesList::dropEvent(QDropEvent *event)
+{
+    if (event->mimeData()->hasFormat(PiecesList::puzzleMimeType())) {
+        QByteArray pieceData = event->mimeData()->data(PiecesList::puzzleMimeType());
+        QDataStream dataStream(&pieceData, QIODevice::ReadOnly);
+        QPixmap pixmap;
+        QPoint location;
+        dataStream >> pixmap >> location;
+
+        addPiece(pixmap, location);
+
+        event->setDropAction(Qt::MoveAction);
+        event->accept();
+    } else {
+        event->ignore();
+    }
+}
+
+void PiecesList::addPiece(const QPixmap &pixmap, const QPoint &location)
+{
+    QListWidgetItem *pieceItem = new QListWidgetItem(this);
+    pieceItem->setIcon(QIcon(pixmap));
+    pieceItem->setData(Qt::UserRole, QVariant(pixmap));
+    pieceItem->setData(Qt::UserRole+1, location);
+    pieceItem->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsDragEnabled);
+}
+
+void PiecesList::startDrag(Qt::DropActions /*supportedActions*/)
+{
+    QListWidgetItem *item = currentItem();
+
+    QByteArray itemData;
+    QDataStream dataStream(&itemData, QIODevice::WriteOnly);
+    QPixmap pixmap = qvariant_cast<QPixmap>(item->data(Qt::UserRole));
+    QPoint location = item->data(Qt::UserRole+1).toPoint();
+
+    dataStream << pixmap << location;
+
+    QMimeData *mimeData = new QMimeData;
+    mimeData->setData(PiecesList::puzzleMimeType(), itemData);
+
+    QDrag *drag = new QDrag(this);
+    drag->setMimeData(mimeData);
+    drag->setHotSpot(QPoint(pixmap.width()/2, pixmap.height()/2));
+    drag->setPixmap(pixmap);
+
+    if (drag->exec(Qt::MoveAction) == Qt::MoveAction)
+        delete takeItem(row(item));
+}