1 files changed, 18 insertions, 0 deletions
diff --git a/src/identitycollection.hpp b/src/identitycollection.hpp
index 7db879e..82d48a6 100644
--- a/src/identitycollection.hpp
+++ b/src/identitycollection.hpp
@@ -21,6 +21,9 @@ class IdentityCollection : public QAbstractItemModel
 
         template<typename T>
         T & as() { return *static_cast<T*>(this); }
+
+        template<typename T>
+        T const & as() const { return *static_cast<T const*>(this); }
     };
 
     struct IdentityNode : Node {
@@ -83,6 +86,21 @@ public:
 
     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
 
+    // Drag'n'Drop
+
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
+
+    QStringList mimeTypes() const override;
+    QMimeData *mimeData(const QModelIndexList &indexes) const override;
+    bool canDropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const override;
+    bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override;
+    Qt::DropActions supportedDropActions() const override;
+
+    Qt::DropActions supportedDragActions() const override;
+
+    bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex()) override;
+
+
 private:
     void relayout();