AutoNum: a lot of changes

Schemas now get saved with a UUID and do not have to be looked up according to the form. They can be renamed and it gets reflected in existing elements. The GUI for
editing them is now much easier, e.g. forms can be reshuffled. A formula can be applied. Many options now also for conductors and sheets.

sources/diagramevent/diagrameventaddpaste.cpp

@@ -16,6 +16,7 @@
 	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "diagrameventaddpaste.h"
+#include "../autoNum/ui/pastenumberingimport.h"
 
 #include "../diagram.h"
 #include "../diagramcommands.h"
@@ -74,6 +75,7 @@
 
 		//Load items at their original XML coordinates.
 	m_diagram->fromXml(document_xml, QPointF(), false, &m_content);
+	m_copied_schemes = PasteNumberingImport::copiedBy(document_xml);
 
 	if (db) {
 		db->blockSignals(false);
@@ -385,7 +387,10 @@ void DiagramEventAddPaste::commit()
 	m_finished = true;
 	m_running = false;
 
-	m_diagram->undoStack().push(new PasteDiagramCommand(m_diagram, m_content));
+		//Asks whether to import the numberings the copy brings, if the
+		//project has not got them
+	PasteNumberingImport::push(m_diagram->views().isEmpty() ? nullptr : m_diagram->views().first(),
+							   m_diagram, m_content, m_copied_schemes);
 	emit finish();
 }