--- a/src/document.h	Wed Jun 15 12:41:57 2022 +0300
+++ b/src/document.h	Wed Jun 15 13:03:20 2022 +0300
@@ -76,6 +76,7 @@
 private:
 	const std::vector<ModelAction> actions() const;
 	void closeShape();
+	void renderPreview(QPainter* painter, const void* pensptr);
 	void removeLastPoint();
 	bool isCloseToExistingPoints() const;
 };