User can edit the label of terminal inside the terminal strip editor

sources/TerminalStrip/ui/terminalstripeditor.cpp

@@ -442,6 +442,7 @@ void TerminalStripEditor::on_m_dialog_button_box_clicked(QAbstractButton *button
 						current_data.setTerminalType(modified_data.type_);
 						current_data.setTerminalFunction(modified_data.function_);
 						current_data.setTerminalLED(modified_data.led_);
+						current_data.m_informations.addValue(QStringLiteral("label"), modified_data.label_);
 
 						m_project->undoStack()->push(new ChangeElementDataCommand(element, current_data));
 					}

sources/TerminalStrip/ui/terminalstripmodel.cpp

@@ -154,6 +154,13 @@ bool TerminalStripModel::setData(const QModelIndex &index, const QVariant &value
 		modified_ = true;
 		modified_cell = FUNCTION_CELL;
 	}
+	else if (column_ == LABEL_CELL &&
+			 role == Qt::EditRole)
+	{
+		rtd.label_ = value.toString();
+		modified_ = true;
+		modified_cell = LABEL_CELL;
+	}
 
 		//Set the modification to the terminal data
 	if (modified_)
@@ -384,5 +391,8 @@ void TerminalStripModelDelegate::setModelData(QWidget *editor, QAbstractItemMode
 				model->setData(index, qcb->currentData(), Qt::EditRole);
 			}
 		}
+		else {
+			QStyledItemDelegate::setModelData(editor, model, index);
+		}
 	}
 }

sources/qetgraphicsitem/element.cpp

@@ -1327,6 +1327,26 @@ ElementData Element::elementData() const
 	return m_data;
 }
 
+/**
+ * @brief Element::setElementData
+ * Set new data for this element.
+ * If m_information of \p data is changed, emit elementInfoChange
+ * @param data
+ */
+void Element::setElementData(ElementData data)
+{
+	auto old_info = m_data.m_informations;
+	m_data = data;
+
+	if (old_info != m_data.m_informations) {
+		m_data.m_informations.addValue(QStringLiteral("label"), actualLabel()); //Update the label if there is a formula
+		if (diagram()) {
+			diagram()->project()->dataBase()->elementInfoChanged(this);
+		}
+		emit elementInfoChange(old_info, m_data.m_informations);
+	}
+}
+
 /**
 	@brief comparPos
 	Compare position of the two elements. Compare 3 points:

sources/qetgraphicsitem/element.h

@@ -42,7 +42,6 @@ class ElementTextItemGroup;
 class Element : public QetGraphicsItem
 {
 	friend class DiagramEventAddElement;
-	friend class ChangeElementDataCommand;
 
 	Q_OBJECT
 	public:
@@ -106,6 +105,7 @@ class Element : public QetGraphicsItem
 		virtual void setElementInformations(DiagramContext dc);
 
 		ElementData elementData() const;
+		void setElementData (ElementData data);
 
 		/**
 		 * @brief kindInformations

sources/undocommand/changeelementdatacommand.cpp

@@ -28,12 +28,12 @@ ChangeElementDataCommand::ChangeElementDataCommand(Element *element, ElementData
 
 void ChangeElementDataCommand::undo() {
     if (m_element) {
-        m_element.data()->m_data = m_old_data;
+		m_element.data()->setElementData(m_old_data);
     }
 }
 
 void ChangeElementDataCommand::redo() {
     if (m_element) {
-        m_element.data()->m_data = m_new_data;
+		m_element.data()->setElementData(m_new_data);
     }
 }