1 files changed, 3 insertions, 0 deletions
diff --git a/library.h b/library.h
index c88f49d..ff685c2 100644
--- a/library.h
+++ b/library.h
@@ -20,6 +20,7 @@
 
 #include <QAbstractListModel>
 #include <QAbstractTableModel>
+#include <QSize>
 
 class Library : public QAbstractListModel
 {
@@ -28,6 +29,8 @@ class Library : public QAbstractListModel
 public:
     explicit Library(QObject *parent = nullptr);
 
+    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
+
     // Basic functionality:
     int rowCount(const QModelIndex &parent = QModelIndex()) const override;