Refractor ImageScrollArea

filesystemwidget.h

@@ -14,8 +14,9 @@ class FilesystemWidget : public QWidget
 public:
     explicit FilesystemWidget(QAbstractItemModel *model, QWidget *parent = nullptr);
     void contextMenuEvent(QContextMenuEvent *event) override;
-private slots:
+public slots:
     void selectFile(int row);
+protected slots:
     void fileClicked(const QModelIndex &index, const QModelIndex &);
 signals:
     void fileSelected(int row);