Conductors num can be exported to csv file.

sources/conductornumexport.h

@@ -0,0 +1,46 @@
+/*
+        Copyright 2006-2019 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 ConductorNumExport_H
+#define ConductorNumExport_H
+
+#include <QHash>
+
+class QETProject;
+class QWidget;
+
+/**
+ * @brief The ConductorNumExport class
+ * A class to export the num of conductors into a csv file.
+ */
+class ConductorNumExport
+{
+    public:
+        ConductorNumExport(QETProject *project, QWidget *parent = nullptr);
+        bool toCsv();
+        QString wiresNum() const;
+
+    private:
+        void fillHash();
+
+    private:
+        QETProject *m_project = nullptr;
+        QHash <QString, int> m_hash;
+        QWidget *m_parent_widget = nullptr;
+};
+
+#endif // ConductorNumExport_H