Terminal strip item can saved / loaded to .qet file

sources/xml/terminalstripitemxml.h

@@ -0,0 +1,37 @@
+/*
+    Copyright 2006-2022 The QElectroTech Team
+    This file is part of QElectroTech.
+
+    QElectroTech is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    (at your option) any later version.
+
+    QElectroTech is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#ifndef TERMINALSTRIPITEMXML_H
+#define TERMINALSTRIPITEMXML_H
+
+#include <QDomElement>
+
+class TerminalStripItem;
+class QETProject;
+class Diagram;
+
+class TerminalStripItemXml
+{
+    public:
+        static QDomElement toXml(const QVector<TerminalStripItem *> &items, QDomDocument &document);
+        static QVector<TerminalStripItem *> fromXml(Diagram *diagram, const QDomElement &xml_elmt);
+
+        static QDomElement toXml(TerminalStripItem *item, QDomDocument &document);
+        static bool fromXml(TerminalStripItem *item, QETProject *project, const QDomElement &xml_elmt);
+};
+
+#endif // TERMINALSTRIPITEMXML_H