try to use TerminalData in Terminal and PartTerminal, sou the code must not be written double

sources/properties/terminaldata.cpp

@@ -0,0 +1,82 @@
+#include "terminaldata.h"
+
+#include <QGraphicsObject>
+
+TerminalData::TerminalData():
+    PropertiesInterface()
+{
+
+}
+
+TerminalData::TerminalData(QGraphicsObject *parent):
+    PropertiesInterface(),
+    q(parent)
+{
+
+}
+
+TerminalData::~TerminalData()
+{
+
+}
+
+void TerminalData::setParent(QGraphicsObject* parent)
+{
+    q = parent;
+}
+
+void TerminalData::toSettings(QSettings &settings, const QString) const
+{
+
+}
+
+void TerminalData::fromSettings(const QSettings &settings, const QString)
+{
+
+}
+
+QDomElement TerminalData::toXml(QDomDocument &xml_document) const
+{
+    QDomElement xml_element = xml_document.createElement("terminal");
+
+    // ecrit la position de la borne
+    xml_element.setAttribute("x", QString("%1").arg(q->scenePos().x()));
+    xml_element.setAttribute("y", QString("%1").arg(q->scenePos().y()));
+
+
+    xml_element.setAttribute("uuid", m_uuid.toString());
+    xml_element.setAttribute("name", m_name);
+
+    // ecrit l'orientation de la borne
+    xml_element.setAttribute("orientation", Qet::orientationToString(m_orientation));
+    // Write name and number to XML
+
+    return(xml_element);
+}
+bool TerminalData::fromXml (const QDomElement &xml_element)
+{
+    // lit la position de la borne
+    qreal term_x = 0.0, term_y = 0.0;
+    if (!QET::attributeIsAReal(xml_element, "x", &term_x))
+        return false;
+
+    if (!QET::attributeIsAReal(xml_element, "y", &term_y))
+        return false;
+
+    m_pos = QPointF(term_x, term_y);
+
+    //emit posFromXML(QPointF(term_x, term_y));
+
+    QString uuid = xml_element.attribute("uuid");
+    // update part and add uuid, which is used in the new version to connect terminals together
+    // if the attribute not exists, in the constructor of PartTerminal already one is created
+    if (!uuid.isEmpty())
+        m_uuid = QUuid(uuid);
+
+    m_name = xml_element.attribute("name");
+
+    // lit l'orientation de la borne
+    m_orientation = Qet::orientationFromString(xml_element.attribute("orientation"));
+
+    return true;
+}