diff --git a/sources/ElementsCollection/elementcollectionhandler.cpp b/sources/ElementsCollection/elementcollectionhandler.cpp
index 653516593..4aa390792 100644
--- a/sources/ElementsCollection/elementcollectionhandler.cpp
+++ b/sources/ElementsCollection/elementcollectionhandler.cpp
@@ -1,19 +1,19 @@
 /*
-                Copyright 2006-2020 The QElectroTech Team
-                This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #include "elementcollectionhandler.h"
 #include "renamedialog.h"
diff --git a/sources/ElementsCollection/elementcollectionhandler.h b/sources/ElementsCollection/elementcollectionhandler.h
index 0bad24579..cdcc5281d 100644
--- a/sources/ElementsCollection/elementcollectionhandler.h
+++ b/sources/ElementsCollection/elementcollectionhandler.h
@@ -1,19 +1,19 @@
 /*
-                Copyright 2006-2020 The QElectroTech Team
-                This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef ELEMENTCOLLECTIONHANDLER_H
 #define ELEMENTCOLLECTIONHANDLER_H
diff --git a/sources/ElementsCollection/elementscollectionwidget.cpp b/sources/ElementsCollection/elementscollectionwidget.cpp
index 308150307..d8f512723 100644
--- a/sources/ElementsCollection/elementscollectionwidget.cpp
+++ b/sources/ElementsCollection/elementscollectionwidget.cpp
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #include "elementscollectionwidget.h"
 #include "elementscollectionmodel.h"
diff --git a/sources/ElementsCollection/elementscollectionwidget.h b/sources/ElementsCollection/elementscollectionwidget.h
index 2f5c37b6d..e3a2ba92e 100644
--- a/sources/ElementsCollection/elementscollectionwidget.h
+++ b/sources/ElementsCollection/elementscollectionwidget.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef ELEMENTSCOLLECTIONWIDGET_H
 #define ELEMENTSCOLLECTIONWIDGET_H
diff --git a/sources/ElementsCollection/ui/renamedialog.cpp b/sources/ElementsCollection/ui/renamedialog.cpp
index a1621299e..9ca1f7bde 100644
--- a/sources/ElementsCollection/ui/renamedialog.cpp
+++ b/sources/ElementsCollection/ui/renamedialog.cpp
@@ -1,19 +1,19 @@
 /*
-    Copyright 2006-2020 The QElectroTech Team
-    This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "renamedialog.h"
 
diff --git a/sources/ElementsCollection/ui/renamedialog.h b/sources/ElementsCollection/ui/renamedialog.h
index 74e3d5d47..f2db9ab34 100644
--- a/sources/ElementsCollection/ui/renamedialog.h
+++ b/sources/ElementsCollection/ui/renamedialog.h
@@ -1,19 +1,19 @@
 /*
-    Copyright 2006-2020 The QElectroTech Team
-    This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef RENAMEDIALOG_H
 #define RENAMEDIALOG_H
diff --git a/sources/QetGraphicsItemModeler/qetgraphicshandleritem.cpp b/sources/QetGraphicsItemModeler/qetgraphicshandleritem.cpp
index 4c64b9f42..2a67a985a 100644
--- a/sources/QetGraphicsItemModeler/qetgraphicshandleritem.cpp
+++ b/sources/QetGraphicsItemModeler/qetgraphicshandleritem.cpp
@@ -1,19 +1,19 @@
 /*
-    Copyright 2006-2020 The QElectroTech Team
-    This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "qetgraphicshandleritem.h"
 #include <QPainter>
diff --git a/sources/QetGraphicsItemModeler/qetgraphicshandleritem.h b/sources/QetGraphicsItemModeler/qetgraphicshandleritem.h
index 48f1bfc1d..185c33356 100644
--- a/sources/QetGraphicsItemModeler/qetgraphicshandleritem.h
+++ b/sources/QetGraphicsItemModeler/qetgraphicshandleritem.h
@@ -1,19 +1,19 @@
 /*
-    Copyright 2006-2020 The QElectroTech Team
-    This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef QETGRAPHICSHANDLERITEM_H
 #define QETGRAPHICSHANDLERITEM_H
diff --git a/sources/conductornumexport.cpp b/sources/conductornumexport.cpp
index d2f45a1af..b694a9cc3 100644
--- a/sources/conductornumexport.cpp
+++ b/sources/conductornumexport.cpp
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #include "conductornumexport.h"
 #include "diagram.h"
diff --git a/sources/conductornumexport.h b/sources/conductornumexport.h
index c741f8de9..0368482ee 100644
--- a/sources/conductornumexport.h
+++ b/sources/conductornumexport.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	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
diff --git a/sources/dataBase/ui/elementquerywidget.cpp b/sources/dataBase/ui/elementquerywidget.cpp
index c45efa1a2..9df711c3f 100644
--- a/sources/dataBase/ui/elementquerywidget.cpp
+++ b/sources/dataBase/ui/elementquerywidget.cpp
@@ -1,19 +1,19 @@
 /*
-   Copyright 2006-2020 The QElectroTech Team
-   This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "elementquerywidget.h"
 #include "ui_elementquerywidget.h"
diff --git a/sources/dataBase/ui/elementquerywidget.h b/sources/dataBase/ui/elementquerywidget.h
index be9be047f..977a8d74e 100644
--- a/sources/dataBase/ui/elementquerywidget.h
+++ b/sources/dataBase/ui/elementquerywidget.h
@@ -1,19 +1,19 @@
 /*
-   Copyright 2006-2020 The QElectroTech Team
-   This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef ELEMENTQUERYWIDGET_H
 #define ELEMENTQUERYWIDGET_H
diff --git a/sources/diagramevent/diagrameventaddimage.cpp b/sources/diagramevent/diagrameventaddimage.cpp
index 47cb67cfe..f6b99d831 100644
--- a/sources/diagramevent/diagrameventaddimage.cpp
+++ b/sources/diagramevent/diagrameventaddimage.cpp
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "diagrameventaddimage.h"
diff --git a/sources/diagramevent/diagrameventaddimage.h b/sources/diagramevent/diagrameventaddimage.h
index c63ff04c1..9f23e7250 100644
--- a/sources/diagramevent/diagrameventaddimage.h
+++ b/sources/diagramevent/diagrameventaddimage.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef DIAGRAMEVENTADDIMAGE_H
 #define DIAGRAMEVENTADDIMAGE_H
diff --git a/sources/diagramevent/diagrameventaddtext.cpp b/sources/diagramevent/diagrameventaddtext.cpp
index 51b9dee23..e18414f8e 100644
--- a/sources/diagramevent/diagrameventaddtext.cpp
+++ b/sources/diagramevent/diagrameventaddtext.cpp
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "diagrameventaddtext.h"
diff --git a/sources/diagramevent/diagrameventaddtext.h b/sources/diagramevent/diagrameventaddtext.h
index 4969ec7be..f84ba44df 100644
--- a/sources/diagramevent/diagrameventaddtext.h
+++ b/sources/diagramevent/diagrameventaddtext.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef DIAGRAMEVENTADDTEXT_H
 #define DIAGRAMEVENTADDTEXT_H
diff --git a/sources/editor/ui/polygoneditor.cpp b/sources/editor/ui/polygoneditor.cpp
index dae6a3d1f..bea8ae54a 100644
--- a/sources/editor/ui/polygoneditor.cpp
+++ b/sources/editor/ui/polygoneditor.cpp
@@ -1,19 +1,19 @@
 /*
-    Copyright 2006-2020 The QElectroTech Team
-    This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "polygoneditor.h"
 #include "ui_polygoneditor.h"
diff --git a/sources/editor/ui/polygoneditor.h b/sources/editor/ui/polygoneditor.h
index 41ebb85f8..66117d100 100644
--- a/sources/editor/ui/polygoneditor.h
+++ b/sources/editor/ui/polygoneditor.h
@@ -1,19 +1,19 @@
 /*
-    Copyright 2006-2020 The QElectroTech Team
-    This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef POLYGONEDITOR_H
 #define POLYGONEDITOR_H
diff --git a/sources/factory/propertieseditorfactory.h b/sources/factory/propertieseditorfactory.h
index 986af0c55..1e194bf70 100644
--- a/sources/factory/propertieseditorfactory.h
+++ b/sources/factory/propertieseditorfactory.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef PROPERTIESEDITORFACTORY_H
 #define PROPERTIESEDITORFACTORY_H
diff --git a/sources/factory/qetgraphicstablefactory.cpp b/sources/factory/qetgraphicstablefactory.cpp
index a24d5288e..e120e1621 100644
--- a/sources/factory/qetgraphicstablefactory.cpp
+++ b/sources/factory/qetgraphicstablefactory.cpp
@@ -1,19 +1,19 @@
 /*
-   Copyright 2006-2020 The QElectroTech Team
-   This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "qetgraphicstablefactory.h"
 #include "qetgraphicstableitem.h"
diff --git a/sources/factory/qetgraphicstablefactory.h b/sources/factory/qetgraphicstablefactory.h
index 4ad36068b..868467623 100644
--- a/sources/factory/qetgraphicstablefactory.h
+++ b/sources/factory/qetgraphicstablefactory.h
@@ -1,19 +1,19 @@
 /*
-   Copyright 2006-2020 The QElectroTech Team
-   This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef QETGRAPHICSTABLEFACTORY_H
 #define QETGRAPHICSTABLEFACTORY_H
diff --git a/sources/qetgraphicsitem/ViewItem/projectdbmodel.h b/sources/qetgraphicsitem/ViewItem/projectdbmodel.h
index 8e80d4c92..f04271e38 100644
--- a/sources/qetgraphicsitem/ViewItem/projectdbmodel.h
+++ b/sources/qetgraphicsitem/ViewItem/projectdbmodel.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef PROJECTDBMODEL_H
 #define PROJECTDBMODEL_H
diff --git a/sources/qetgraphicsitem/ViewItem/qetgraphicsheaderitem.h b/sources/qetgraphicsitem/ViewItem/qetgraphicsheaderitem.h
index e46376bef..323c36cca 100644
--- a/sources/qetgraphicsitem/ViewItem/qetgraphicsheaderitem.h
+++ b/sources/qetgraphicsitem/ViewItem/qetgraphicsheaderitem.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef QETGRAPHICSHEADERITEM_H
 #define QETGRAPHICSHEADERITEM_H
diff --git a/sources/qetgraphicsitem/ViewItem/ui/projectdbmodelpropertieswidget.cpp b/sources/qetgraphicsitem/ViewItem/ui/projectdbmodelpropertieswidget.cpp
index db47de28d..2108a1c7c 100644
--- a/sources/qetgraphicsitem/ViewItem/ui/projectdbmodelpropertieswidget.cpp
+++ b/sources/qetgraphicsitem/ViewItem/ui/projectdbmodelpropertieswidget.cpp
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #include "projectdbmodelpropertieswidget.h"
 #include "ui_projectdbmodelpropertieswidget.h"
diff --git a/sources/qetgraphicsitem/ViewItem/ui/projectdbmodelpropertieswidget.h b/sources/qetgraphicsitem/ViewItem/ui/projectdbmodelpropertieswidget.h
index 5babea85f..c46ca3f04 100644
--- a/sources/qetgraphicsitem/ViewItem/ui/projectdbmodelpropertieswidget.h
+++ b/sources/qetgraphicsitem/ViewItem/ui/projectdbmodelpropertieswidget.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef PROJECTDBMODELPROPERTIESWIDGET_H
 #define PROJECTDBMODELPROPERTIESWIDGET_H
diff --git a/sources/qetxml.cpp b/sources/qetxml.cpp
index c2424fb83..433ea7eff 100644
--- a/sources/qetxml.cpp
+++ b/sources/qetxml.cpp
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #include "qetxml.h"
 #include "nameslist.h"
diff --git a/sources/qetxml.h b/sources/qetxml.h
index 8710d35a5..aadf0e785 100644
--- a/sources/qetxml.h
+++ b/sources/qetxml.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef QETXML_H
 #define QETXML_H
diff --git a/sources/titleblock/helpercell.h b/sources/titleblock/helpercell.h
index 5763d7390..e2b85c37a 100644
--- a/sources/titleblock/helpercell.h
+++ b/sources/titleblock/helpercell.h
@@ -1,19 +1,19 @@
 /*
-    Copyright 2006-2020 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/>.
+	Copyright 2006-2020 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 TITLEBLOCK_SLASH_HELPER_CELL_H
 #define TITLEBLOCK_SLASH_HELPER_CELL_H
diff --git a/sources/titleblock/splittedhelpercell.h b/sources/titleblock/splittedhelpercell.h
index ca60b45dd..657ac488e 100644
--- a/sources/titleblock/splittedhelpercell.h
+++ b/sources/titleblock/splittedhelpercell.h
@@ -1,19 +1,19 @@
 /*
-    Copyright 2006-2020 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/>.
+	Copyright 2006-2020 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 TITLEBLOCK_SLASH_SPLITTED_HELPER_CELL_H
 #define TITLEBLOCK_SLASH_SPLITTED_HELPER_CELL_H
diff --git a/sources/titleblock/templatevisualcell.h b/sources/titleblock/templatevisualcell.h
index 35af4f7b7..030019c69 100644
--- a/sources/titleblock/templatevisualcell.h
+++ b/sources/titleblock/templatevisualcell.h
@@ -1,19 +1,19 @@
 /*
-    Copyright 2006-2020 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/>.
+	Copyright 2006-2020 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 TITLEBLOCK_SLASH_QET_TEMPLATE_VISUAL_CELL_H
 #define TITLEBLOCK_SLASH_QET_TEMPLATE_VISUAL_CELL_H
diff --git a/sources/ui/bomexportdialog.cpp b/sources/ui/bomexportdialog.cpp
index 5ba87401f..8725d095b 100644
--- a/sources/ui/bomexportdialog.cpp
+++ b/sources/ui/bomexportdialog.cpp
@@ -1,19 +1,19 @@
- /*
-    Copyright 2006-2020 The QElectroTech Team
-    This file is part of QElectroTech.
+/*
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "bomexportdialog.h"
 #include "ui_bomexportdialog.h"
diff --git a/sources/ui/bomexportdialog.h b/sources/ui/bomexportdialog.h
index 7c20461b2..92dabe42d 100644
--- a/sources/ui/bomexportdialog.h
+++ b/sources/ui/bomexportdialog.h
@@ -1,19 +1,19 @@
 /*
-    Copyright 2006-2020 The QElectroTech Team
-    This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef BOMExportDialog_H
 #define BOMExportDialog_H
diff --git a/sources/ui/marginseditdialog.cpp b/sources/ui/marginseditdialog.cpp
index 6819715eb..332f9bbd1 100644
--- a/sources/ui/marginseditdialog.cpp
+++ b/sources/ui/marginseditdialog.cpp
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #include "marginseditdialog.h"
 #include "ui_marginseditdialog.h"
diff --git a/sources/ui/marginseditdialog.h b/sources/ui/marginseditdialog.h
index f47a63acb..073889746 100644
--- a/sources/ui/marginseditdialog.h
+++ b/sources/ui/marginseditdialog.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef MARGINSEDITDIALOG_H
 #define MARGINSEDITDIALOG_H
diff --git a/sources/undocommand/itemmodelcommand.cpp b/sources/undocommand/itemmodelcommand.cpp
index e12f64a2f..feb4ec54e 100644
--- a/sources/undocommand/itemmodelcommand.cpp
+++ b/sources/undocommand/itemmodelcommand.cpp
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #include "itemmodelcommand.h"
 
diff --git a/sources/undocommand/itemmodelcommand.h b/sources/undocommand/itemmodelcommand.h
index b66e16e80..4f96c578d 100644
--- a/sources/undocommand/itemmodelcommand.h
+++ b/sources/undocommand/itemmodelcommand.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef ITEMMODELCOMMAND_H
 #define ITEMMODELCOMMAND_H
diff --git a/sources/utils/macosxopenevent.cpp b/sources/utils/macosxopenevent.cpp
index b5baedcf3..88d010054 100644
--- a/sources/utils/macosxopenevent.cpp
+++ b/sources/utils/macosxopenevent.cpp
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #include "macosxopenevent.h"
 #include "singleapplication.h"
diff --git a/sources/utils/macosxopenevent.h b/sources/utils/macosxopenevent.h
index 964cf855c..60a4f0b0b 100644
--- a/sources/utils/macosxopenevent.h
+++ b/sources/utils/macosxopenevent.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef MACOSXOPENEVENT_H
 #define MACOSXOPENEVENT_H
diff --git a/sources/utils/qetutils.cpp b/sources/utils/qetutils.cpp
index cd87e6416..82861001d 100644
--- a/sources/utils/qetutils.cpp
+++ b/sources/utils/qetutils.cpp
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #include "qetutils.h"
 #include <QString>
diff --git a/sources/utils/qetutils.h b/sources/utils/qetutils.h
index de4884b55..aba43d16d 100644
--- a/sources/utils/qetutils.h
+++ b/sources/utils/qetutils.h
@@ -1,19 +1,19 @@
 /*
-        Copyright 2006-2020 The QElectroTech Team
-        This file is part of QElectroTech.
+	Copyright 2006-2020 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 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.
+	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/>.
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef QETUTILS_H
 #define QETUTILS_H