PIValueTreeEdit File and Dir support

libs/piqt_widgets/pivaluetree_edit.h

@@ -58,6 +58,7 @@ public:
 
 	void rollback();
 	void clear();
+	void retranslate();
 
 private:
 	enum class NewType {
@@ -95,6 +96,7 @@ private:
 		void reorder(const PIMap<int, int> & map) { simplify(map); }
 		void clear();
 		void changed();
+		void retranslate();
 
 		bool create_edit_buttons = false;
 		QToolButton * button_add;
@@ -122,7 +124,7 @@ private:
 	PIMap<PIString, QLabel *> comm_labels, label_labels;
 	Ui::PIValueTreeEditArray * ui_array;
 	GridWidgets * grid = nullptr;
-	mutable PIValueTree source;
+	mutable PIValueTree source, current;
 	bool is_grouping = true, is_full_edit = false;
 };