Group terminals together is now managed by undo stack

sources/TerminalStrip/UndoCommand/groupterminalscommand.h

@@ -0,0 +1,48 @@
+/*
+		Copyright 2006-2021 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 GROUPTERMINALSCOMMAND_H
+#define GROUPTERMINALSCOMMAND_H
+
+#include <QUndoCommand>
+#include <QPointer>
+#include <QVector>
+#include "../terminalstrip.h"
+
+/**
+ * @brief The GroupTerminalsCommand class
+ * Class used to group (make level terminal) together
+ */
+class GroupTerminalsCommand : public QUndoCommand
+{
+	public:
+		GroupTerminalsCommand(TerminalStrip *strip,
+							  const PhysicalTerminalData &receiver_,
+							  const QVector<RealTerminalData> &to_group,
+							  QUndoCommand *parent = nullptr);
+
+		void undo() override;
+		void redo() override;
+
+	private:
+		QPointer<TerminalStrip> m_terminal_strip;
+		PhysicalTerminalData m_receiver;
+		QVector <RealTerminalData> m_to_group;
+		QVector <RealTerminalData> m_to_ungroup;
+};
+
+#endif // GROUPTERMINALSCOMMAND_H