1 files changed, 12 insertions, 0 deletions
diff --git a/sigmodr/tree/TreeModel.cpp b/sigmodr/tree/TreeModel.cpp
index 8331d7a2..723bfa4a 100644
--- a/sigmodr/tree/TreeModel.cpp
+++ b/sigmodr/tree/TreeModel.cpp
@@ -90,6 +90,18 @@ QStringList TreeModel::mimeTypes() const
 
 QMimeData* TreeModel::mimeData(const QModelIndexList& indexes) const
 {
+    QMimeData* data = new QMimeData;
+    QDomDocument document("SigmodCopyData");
+    foreach (const QModelIndex& index, indexes)
+    {
+        if (!index.isValid())
+            continue;
+        TreeItem* item = static_cast<TreeItem*>(index.internalPointer());
+        if (item->canEdit())
+            document.appendChild(item->copyData());
+    }
+    data->setData("application/x-sigmod-copy+xml", document.toByteArray());
+    return data;
 }
 
 bool TreeModel::dropMimeData(const QMimeData* data, Qt::DropAction action, const int row, const int column, const QModelIndex& parent)