Fix crash

When we create a summary table and uncheck the option "adjust the size
of the table to the folio" an infinity of new diagram are added to the
project.

CMakeLists.txt

@@ -19,7 +19,7 @@ include(cmake/hoto_update_cmake_message.cmake)
 cmake_minimum_required(VERSION 3.14...3.19 FATAL_ERROR)
 
 project(qelectrotech
-  VERSION 0.8.0
+  VERSION 0.9.0
   DESCRIPTION "QET is a CAD/CAE editor focusing on schematics drawing features."
   HOMEPAGE_URL "https://qelectrotech.org/"
   LANGUAGES CXX)
@@ -131,3 +131,28 @@ target_include_directories(
   ${QET_DIR}/sources/factory/ui
   ${QET_DIR}/sources/print
   )
+
+install(TARGETS ${PROJECT_NAME})
+install(DIRECTORY ico/breeze-icons/16x16 DESTINATION ${QET_ICONS_PATH})
+install(DIRECTORY ico/breeze-icons/22x22 DESTINATION ${QET_ICONS_PATH})
+install(DIRECTORY ico/breeze-icons/32x32 DESTINATION ${QET_ICONS_PATH})
+install(DIRECTORY ico/breeze-icons/48x48 DESTINATION ${QET_ICONS_PATH})
+install(DIRECTORY ico/breeze-icons/64x64 DESTINATION ${QET_ICONS_PATH})
+install(DIRECTORY ico/breeze-icons/128x128 DESTINATION ${QET_ICONS_PATH})
+install(DIRECTORY ico/breeze-icons/256x256 DESTINATION ${QET_ICONS_PATH})
+install(DIRECTORY elements DESTINATION share/qelectrotech)
+install(DIRECTORY examples DESTINATION share/qelectrotech)
+install(DIRECTORY titleblocks DESTINATION share/qelectrotech)
+install(FILES LICENSE ELEMENTS.LICENSE CREDIT README ChangeLog DESTINATION share/doc/qelectrotech)
+install(FILES misc/qelectrotech.desktop DESTINATION share/applications)
+install(FILES misc/x-qet-element.xml
+              misc/x-qet-project.xml
+              misc/x-qet-titleblock.xml
+              DESTINATION share/mime/application)
+install(FILES misc/x-qet-element.desktop
+              misc/x-qet-project.desktop
+              misc/x-qet-titleblock.desktop
+              DESTINATION share/mimelnk/application)
+install(FILES misc/qelectrotech.xml DESTINATION share/mime/packages)
+install(FILES misc/qelectrotech.appdata.xml DESTINATION ${QET_APPDATA_PATH})
+install(FILES ${QM_FILES} DESTINATION ${QET_LANG_PATH})

cmake/fetch_kdeaddons.cmake

@@ -19,9 +19,9 @@ message(" - fetch_kdeaddons")
 if(DEFINED BUILD_WITH_KF5)
   Include(FetchContent)
 
-  set(BUILD_KF5_YES "YES")
+  option(BUILD_KF5 "Build KF5 libraries, use system ones otherwise" YES)
 
-  if(DEFINED BUILD_KF5_YES)
+  if(BUILD_KF5)
 
     if(NOT DEFINED KF5_GIT_TAG)
       #https://qelectrotech.org/forum/viewtopic.php?pid=13924#p13924

cmake/fetch_pugixml.cmake

@@ -18,9 +18,16 @@ message(" - fetch_pugixml")
 
 Include(FetchContent)
 
-FetchContent_Declare(
-  pugixml
-  GIT_REPOSITORY https://github.com/zeux/pugixml.git
-  GIT_TAG        v1.11.1)
+option(BUILD_PUGIXML "Build pugixml library, use system one otherwise" YES)
 
-FetchContent_MakeAvailable(pugixml)
+if(BUILD_PUGIXML)
+
+  FetchContent_Declare(
+    pugixml
+    GIT_REPOSITORY https://github.com/zeux/pugixml.git
+    GIT_TAG        v1.11.4)
+
+  FetchContent_MakeAvailable(pugixml)
+else()
+  find_package(pugixml REQUIRED)
+endif()

cmake/fetch_singleapplication.cmake

@@ -26,6 +26,6 @@ Include(FetchContent)
 FetchContent_Declare(
   SingleApplication
   GIT_REPOSITORY https://github.com/itay-grudev/SingleApplication.git
-  GIT_TAG        v3.1.5)
+  GIT_TAG        v3.2.0)
 
 FetchContent_MakeAvailable(SingleApplication)

cmake/git_last_commit_sha.cmake

@@ -28,9 +28,6 @@ if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
   # This strips terminating newline in the variable
   string(REGEX REPLACE "\n$" "" GIT_COMMIT_SHA "${GIT_COMMIT_SHA}")
 
-  # This adds to definitions => .cpp
-  add_definitions(-DGIT_COMMIT_SHA="${GIT_COMMIT_SHA}")
-
   if(NOT GIT_COMMIT_RESULT EQUAL "0")
     message(
       FATAL_ERROR
@@ -39,3 +36,6 @@ if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
       ", please check")
   endif()
 endif()
+
+# This adds to definitions => .cpp
+add_definitions(-DGIT_COMMIT_SHA="${GIT_COMMIT_SHA}")

cmake/qet_compilation_vars.cmake

@@ -52,6 +52,8 @@ set(QET_RES_FILES
   ${QET_DIR}/sources/editor/ui/lineeditor.ui
   ${QET_DIR}/sources/editor/ui/polygoneditor.ui
   ${QET_DIR}/sources/editor/ui/rectangleeditor.ui
+  ${QET_DIR}/sources/editor/ui/qetelementeditor.ui
+  ${QET_DIR}/sources/editor/ui/terminaleditor.ui
   ${QET_DIR}/sources/ElementsCollection/ui/renamedialog.ui
   ${QET_DIR}/sources/factory/ui/addtabledialog.ui
   ${QET_DIR}/sources/NameList/ui/namelistdialog.ui
@@ -260,12 +262,8 @@ set(QET_SRC_FILES
   ${QET_DIR}/sources/editor/elementscene.h
   ${QET_DIR}/sources/editor/elementview.cpp
   ${QET_DIR}/sources/editor/elementview.h
-  ${QET_DIR}/sources/editor/qetelementeditor.cpp
-  ${QET_DIR}/sources/editor/qetelementeditor.h
   ${QET_DIR}/sources/editor/styleeditor.cpp
   ${QET_DIR}/sources/editor/styleeditor.h
-  ${QET_DIR}/sources/editor/terminaleditor.cpp
-  ${QET_DIR}/sources/editor/terminaleditor.h
 
   ${QET_DIR}/sources/editor/esevent/eseventaddarc.cpp
   ${QET_DIR}/sources/editor/esevent/eseventaddarc.h
@@ -320,8 +318,12 @@ set(QET_SRC_FILES
   ${QET_DIR}/sources/editor/ui/polygoneditor.h
   ${QET_DIR}/sources/editor/ui/rectangleeditor.cpp
   ${QET_DIR}/sources/editor/ui/rectangleeditor.h
+  ${QET_DIR}/sources/editor/ui/terminaleditor.cpp
+  ${QET_DIR}/sources/editor/ui/terminaleditor.h
   ${QET_DIR}/sources/editor/ui/texteditor.cpp
   ${QET_DIR}/sources/editor/ui/texteditor.h
+  ${QET_DIR}/sources/editor/ui/qetelementeditor.h
+  ${QET_DIR}/sources/editor/ui/qetelementeditor.cpp
 
   ${QET_DIR}/sources/editor/UndoCommand/pastepartscommand.cpp
   ${QET_DIR}/sources/editor/UndoCommand/pastepartscommand.h
@@ -371,6 +373,8 @@ set(QET_SRC_FILES
   ${QET_DIR}/sources/print/projectprintwindow.cpp
   ${QET_DIR}/sources/print/projectprintwindow.h
 
+  ${QET_DIR}/sources/properties/elementdata.cpp
+  ${QET_DIR}/sources/properties/elementdata.h
   ${QET_DIR}/sources/properties/propertiesinterface.cpp
   ${QET_DIR}/sources/properties/propertiesinterface.h
   ${QET_DIR}/sources/properties/reportproperties.cpp
@@ -379,6 +383,8 @@ set(QET_SRC_FILES
   ${QET_DIR}/sources/properties/terminaldata.h
   ${QET_DIR}/sources/properties/xrefproperties.cpp
   ${QET_DIR}/sources/properties/xrefproperties.h
+  ${QET_DIR}/sources/properties/userproperties.cpp
+  ${QET_DIR}/sources/properties/userproperties.h
 
   ${QET_DIR}/sources/PropertiesEditor/propertieseditordialog.h
   ${QET_DIR}/sources/PropertiesEditor/propertieseditordockwidget.cpp

sources/bordertitleblock.cpp

@@ -331,6 +331,7 @@ void BorderTitleBlock::importTitleBlock(const TitleBlockProperties &ip) {
 	// through setFolioData(),
 	// which in turn calls updateDiagramContextForTitleBlock().
 	emit(needTitleBlockTemplate(ip.template_name));
+	emit informationChanged();
 }
 
 /**

sources/bordertitleblock.h

@@ -245,6 +245,12 @@ class BorderTitleBlock : public QObject
 			since it does not know of its parent project.
 		*/
 		void needTitleBlockTemplate(const QString &);
+
+		/**
+		 * @brief infoChanged
+		 * Signal emitted when the informations changed.
+		 */
+		void informationChanged();
 	
 	// attributes
 	private:

sources/configdialog.cpp

@@ -27,7 +27,6 @@
 	@param parent QWidget parent
 */
 ConfigDialog::ConfigDialog(QWidget *parent) : QDialog(parent) {
-	Machine_info *mymachineinfo= new Machine_info(this);
 	//ScrollArea for low screens
 	QScrollArea *scroll = new QScrollArea(this);
 	scroll->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
@@ -36,7 +35,7 @@ ConfigDialog::ConfigDialog(QWidget *parent) : QDialog(parent) {
 	// liste des pages
 	pages_list = new QListWidget();
 	pages_list -> setViewMode(QListView::IconMode);
-	if(mymachineinfo->i_max_screen_height()<1000){
+	if(MachineInfo::instance()->i_max_screen_height()<1000){
 		pages_list -> setIconSize(QSize(64, 64));
 	} else {
 		pages_list -> setIconSize(QSize(128, 128));
@@ -80,8 +79,8 @@ ConfigDialog::ConfigDialog(QWidget *parent) : QDialog(parent) {
 	connect(pages_list, SIGNAL(currentRowChanged(int)),
 		pages_widget, SLOT(setCurrentIndex(int)));
 
-	setMaximumSize(mymachineinfo->i_max_screen_width(),
-		       mymachineinfo->i_max_screen_height());
+	setMaximumSize(MachineInfo::instance()->i_max_screen_width(),
+				   MachineInfo::instance()->i_max_screen_height());
 	resize(1400,1000);
 
 #ifdef Q_OS_MACOS

sources/dataBase/ui/elementquerywidget.cpp

@@ -157,40 +157,41 @@ void ElementQueryWidget::setQuery(const QString &query)
 			//Element type filter
 		if (where.contains("element_sub_type") || where.contains("element_type"))
 		{
-			int c=0;
-			ui->m_simple_cb->setChecked    (where.contains("Simple")     ? true : false);
-			if (ui->m_simple_cb->isChecked()) {
-				++c;
-				where.remove("element_type = 'Simple' ");
-			}
-			ui->m_terminal_cb->setChecked  (where.contains("Terminale")  ? true : false);
-			if (ui->m_terminal_cb->isChecked()) {
-				++c;
-				where.remove("element_type = 'Terminale'");
-			}
-			ui->m_coil_cb->setChecked      (where.contains("coil")       ? true : false);
-			if (ui->m_coil_cb->isChecked()) {
-				++c;
-				where.remove("element_sub_type = 'coil' ");
-			}
-			ui->m_button_cb->setChecked    (where.contains("commutator") ? true : false);
-			if (ui->m_button_cb->isChecked()) {
-				++c;
-				where.remove("element_sub_type = 'commutator' ");
-			}
-			ui->m_protection_cb->setChecked(where.contains("protection") ? true : false);
-			if (ui->m_protection_cb) {
-				++c;
-				where.remove("element_sub_type = 'protection'");
-			}
+			QRegularExpression rx("^(\\( .+?\\))");
+			auto rxm = rx.match(where);
+			if (rxm.hasMatch())
+			{
+				auto str_type = rxm.captured(1);
+				where.remove(str_type);
 
-			if (c == 5) {
-				ui->m_all_cb->setCheckState(Qt::Checked);
-			} else if (c > 0) {
-				ui->m_all_cb->setCheckState(Qt::PartiallyChecked);
-			}
+				int c=0;
+				ui->m_simple_cb->setChecked    (str_type.contains("Simple")     ? true : false);
+				if (ui->m_simple_cb->isChecked()) {
+					++c;
+				}
+				ui->m_terminal_cb->setChecked  (str_type.contains("Terminale")  ? true : false);
+				if (ui->m_terminal_cb->isChecked()) {
+					++c;
+				}
+				ui->m_coil_cb->setChecked      (str_type.contains("coil")       ? true : false);
+				if (ui->m_coil_cb->isChecked()) {
+					++c;
+				}
+				ui->m_button_cb->setChecked    (str_type.contains("commutator") ? true : false);
+				if (ui->m_button_cb->isChecked()) {
+					++c;
+				}
+				ui->m_protection_cb->setChecked(str_type.contains("protection") ? true : false);
+				if (ui->m_protection_cb) {
+					++c;
+				}
 
-			where.remove("OR");
+				if (c == 5) {
+					ui->m_all_cb->setCheckState(Qt::Checked);
+				} else if (c > 0) {
+					ui->m_all_cb->setCheckState(Qt::PartiallyChecked);
+				}
+			}
 		}
 		else // There is not "element_sub_type" or "element_type" that mean every element are selected
 		{
@@ -206,20 +207,16 @@ void ElementQueryWidget::setQuery(const QString &query)
 			strl.append(item->data(Qt::UserRole).toString());
 		}
 
-		QString beginning_rx;
-		beginning_rx.append(QString("^(").append(strl.join("|")));
-		beginning_rx.append(")");
-
-		QRegularExpression rx_is_not_null(beginning_rx + " IS NOT NULL$");
-		QRegularExpression rx_is_null (beginning_rx + " IS NULL$");
-		QRegularExpression rx_like (beginning_rx + QString(" LIKE'%(.+)%'$"));
-		QRegularExpression rx_not_like (beginning_rx + QString(" NOT LIKE'%(.+)%'$"));
-		QRegularExpression rx_equal (beginning_rx + QString("='(.+)'$"));
-		QRegularExpression rx_not_equal (beginning_rx + QString("!='(.+)'$"));
+		QString join_str = strl.join("|");
 
+		QRegularExpression rx_is_not_null(QStringLiteral("^(%1) != ''$").arg(join_str));
+		QRegularExpression rx_is_null    (QStringLiteral("^\\((%1) IS NULL OR (%1) = ''\\)").arg(join_str));
+		QRegularExpression rx_like       (QStringLiteral("^(%1) LIKE'%(.+)%'$").arg(join_str));
+		QRegularExpression rx_not_like   (QStringLiteral("^(%1) NOT LIKE'%(.+)%'$").arg(join_str));
+		QRegularExpression rx_equal      (QStringLiteral("^(%1)='(.+)'$").arg(join_str));
+		QRegularExpression rx_not_equal  (QStringLiteral("^(%1)!='(.+)'$").arg(join_str));
 
 		QStringList split_where;
-
 			//Remove the white space at begin and end of each string
 		for (auto str : where.split("AND "))
 		{
@@ -310,22 +307,22 @@ QString ElementQueryWidget::queryStr() const
 			case 0: //No filter
 				break;
 			case 1: //Not empty
-				filter_ += QString(" AND ") += key += " IS NOT NULL";
+				filter_ += QStringLiteral(" AND ") += key += " != ''";
 				break;
 			case 2: //empty
-				filter_ += QString(" AND ") += key += " IS NULL";
+				filter_ += QStringLiteral(" AND (%1 IS NULL OR %1 = '')").arg(key);
 				break;
 			case 3: // contain
-				filter_ += QString(" AND ") += key += QString(" LIKE'%") += f.second += "%'";
+				filter_ += QStringLiteral(" AND ") += key += QStringLiteral(" LIKE'%") += f.second += "%'";
 				break;
 			case 4: // not contain
-				filter_ += QString(" AND ") += key += QString(" NOT LIKE'%") += f.second += "%'";
+				filter_ += QStringLiteral(" AND ") += key += QStringLiteral(" NOT LIKE'%") += f.second += "%'";
 				break;
 			case 5: // is equal
-				filter_ += QString(" AND ") += key += QString("='") += f.second += "'";
+				filter_ += QStringLiteral(" AND ") += key += QStringLiteral("='") += f.second += "'";
 				break;
 			case 6: // is not equal
-				filter_ += QString(" AND ") += key += QString("!='") += f.second += "'";
+				filter_ += QStringLiteral(" AND ") += key += QStringLiteral("!='") += f.second += "'";
 				break;
 		}
 	}

sources/diagram.cpp

@@ -92,6 +92,9 @@ Diagram::Diagram(QETProject *project) :
 	pen.setColor(Qt::black);
 	conductor_setter_ -> setPen(pen);
 
+	connect(&border_and_titleblock,
+			&BorderTitleBlock::informationChanged,
+			this, &Diagram::diagramInformationChanged);
 	connect(&border_and_titleblock,
 		&BorderTitleBlock::needTitleBlockTemplate,
 		this, &Diagram::setTitleBlockTemplate);
@@ -134,15 +137,20 @@ Diagram::~Diagram()
 	delete m_event_interface;
 
 	// list removable items
-	QList<QGraphicsItem *> deletable_items;
-	for(QGraphicsItem *qgi : items())
+	QVector<QGraphicsItem *> deletable_items;
+	for(const auto &qgi : items())
 	{
-		if (qgi -> parentItem()) continue;
-		if (qgraphicsitem_cast<Conductor *>(qgi)) continue;
-		deletable_items << qgi;
+		if (qgi->parentItem())
+			continue;
+		if (qgraphicsitem_cast<Conductor *>(qgi))
+			continue;
+		deletable_items.append(qgi);
+	}
+	for (const auto &item : qAsConst(deletable_items))
+	{
+		removeItem(item);
+		delete item;
 	}
-
-	qDeleteAll (deletable_items);
 }
 
 /**
@@ -189,12 +197,12 @@ void Diagram::drawBackground(QPainter *p, const QRectF &r) {
 		// If user allow zoom out beyond of folio,
 		// we draw grid outside of border.
 		QSettings settings;
-		int xGrid = settings.value("diagrameditor/Xgrid",
-					   Diagram::xGrid).toInt();
-		int yGrid = settings.value("diagrameditor/Ygrid",
-					   Diagram::yGrid).toInt();
+		int xGrid = settings.value(QStringLiteral("diagrameditor/Xgrid"),
+								   Diagram::xGrid).toInt();
+		int yGrid = settings.value(QStringLiteral("diagrameditor/Ygrid"),
+								   Diagram::yGrid).toInt();
 		QRectF rect = settings.value(
-					"diagrameditor/zoom-out-beyond-of-folio",
+					QStringLiteral("diagrameditor/zoom-out-beyond-of-folio"),
 					false).toBool() ? r
 							: border_and_titleblock
 							  .insideBorderRect()
@@ -324,15 +332,6 @@ void Diagram::wheelEvent(QGraphicsSceneWheelEvent *event)
 */
 void Diagram::keyPressEvent(QKeyEvent *event)
 {
-	QSettings settings;
-	int xKeyGrid = settings.value("diagrameditor/key_Xgrid",
-				      Diagram::xKeyGrid).toInt();
-	int yKeyGrid = settings.value("diagrameditor/key_Ygrid",
-				      Diagram::yKeyGrid).toInt();
-	int xKeyGridFine = settings.value("diagrameditor/key_fine_Xgrid",
-					  Diagram::xKeyGridFine).toInt();
-	int yKeyGridFine = settings.value("diagrameditor/key_fine_Ygrid",
-					  Diagram::yKeyGridFine).toInt();
 	event->setAccepted(false);
 
 	if (m_event_interface) {
@@ -361,6 +360,11 @@ void Diagram::keyPressEvent(QKeyEvent *event)
 	//Move item with the keyboard arrow
 	if(event->modifiers() == Qt::NoModifier)
 	{
+		QSettings settings;
+		int xKeyGrid = settings.value(QStringLiteral("diagrameditor/key_Xgrid"),
+									  Diagram::xKeyGrid).toInt();
+		int yKeyGrid = settings.value(QStringLiteral("diagrameditor/key_Ygrid"),
+									  Diagram::yKeyGrid).toInt();
 		switch(event->key())
 		{
 			case Qt::Key_Left:
@@ -399,6 +403,11 @@ void Diagram::keyPressEvent(QKeyEvent *event)
 	}
 	else if(event->modifiers() == Qt::AltModifier)
 	{
+		QSettings settings;
+		int xKeyGridFine = settings.value(QStringLiteral("diagrameditor/key_fine_Xgrid"),
+										  Diagram::xKeyGridFine).toInt();
+		int yKeyGridFine = settings.value(QStringLiteral("diagrameditor/key_fine_Ygrid"),
+										  Diagram::yKeyGridFine).toInt();
 		switch(event->key())
 		{
 			case Qt::Key_Left:
@@ -732,7 +741,7 @@ QDomDocument Diagram::toXml(bool whole_content) {
 
 	// XML tree root
 	// racine de l'arbre XML
-	auto dom_root = document.createElement("diagram");
+	auto dom_root = document.createElement(QStringLiteral("diagram"));
 
 	// schema properties
 	// proprietes du schema
@@ -742,24 +751,24 @@ QDomDocument Diagram::toXml(bool whole_content) {
 
 		// Default conductor properties
 		QDomElement default_conductor =
-				document.createElement("defaultconductor");
+				document.createElement(QStringLiteral("defaultconductor"));
 		defaultConductorProperties.toXml(default_conductor);
 		dom_root.appendChild(default_conductor);
 
 		// Conductor autonum
 		if (!m_conductors_autonum_name.isEmpty()) {
-			dom_root.setAttribute("conductorAutonum",
+			dom_root.setAttribute(QStringLiteral("conductorAutonum"),
 					      m_conductors_autonum_name);
 		}
 
 		//Default New Element
-		dom_root.setAttribute("freezeNewElement",
-				      m_freeze_new_elements ? "true" : "false");
+		dom_root.setAttribute(QStringLiteral("freezeNewElement"),
+					  m_freeze_new_elements ? QStringLiteral("true") : QStringLiteral("false"));
 
 		//Default New Conductor
-		dom_root.setAttribute("freezeNewConductor",
+		dom_root.setAttribute(QStringLiteral("freezeNewConductor"),
 				      m_freeze_new_conductors_
-				      ? "true" : "false");
+					  ? QStringLiteral("true") : QStringLiteral("false"));
 
 		//Element Folio Sequential Variables
 		if (!m_elmt_unitfolio_max.isEmpty()
@@ -767,37 +776,37 @@ QDomDocument Diagram::toXml(bool whole_content) {
 				|| !m_elmt_hundredfolio_max.isEmpty()) {
 			QDomElement elmtfoliosequential =
 					document.createElement(
-						"elementautonumfoliosequentials");
+						QStringLiteral("elementautonumfoliosequentials"));
 			if (!m_elmt_unitfolio_max.isEmpty()) {
 				QDomElement elmtfolioseq =
 						document.createElement(
-							"elementunitfolioseq");
+							QStringLiteral("elementunitfolioseq"));
 				folioSequentialsToXml(&m_elmt_unitfolio_max,
 						      &elmtfolioseq,
-						      "sequf_",
-						      "unitfolioseq",
+							  QStringLiteral("sequf_"),
+							  QStringLiteral("unitfolioseq"),
 						      &document);
 				elmtfoliosequential.appendChild(elmtfolioseq);
 			}
 			if (!m_elmt_tenfolio_max.isEmpty()) {
 				QDomElement elmtfolioseq =
 						document.createElement(
-							"elementtenfolioseq");
+							QStringLiteral("elementtenfolioseq"));
 				folioSequentialsToXml(&m_elmt_tenfolio_max,
 						      &elmtfolioseq,
-						      "seqtf_",
-						      "tenfolioseq",
+							  QStringLiteral("seqtf_"),
+							  QStringLiteral("tenfolioseq"),
 						      &document);
 				elmtfoliosequential.appendChild(elmtfolioseq);
 			}
 			if (!m_elmt_hundredfolio_max.isEmpty()) {
 				QDomElement elmtfolioseq =
 						document.createElement(
-							"elementhundredfolioseq");
+							QStringLiteral("elementhundredfolioseq"));
 				folioSequentialsToXml(&m_elmt_hundredfolio_max,
 						      &elmtfolioseq,
-						      "seqhf_",
-						      "hundredfolioseq",
+							  QStringLiteral("seqhf_"),
+							  QStringLiteral("hundredfolioseq"),
 						      &document);
 				elmtfoliosequential.appendChild(elmtfolioseq);
 			}
@@ -809,38 +818,38 @@ QDomDocument Diagram::toXml(bool whole_content) {
 				!m_cnd_hundredfolio_max.isEmpty()) {
 			QDomElement cndfoliosequential =
 					document.createElement(
-						"conductorautonumfoliosequentials");
+						QStringLiteral("conductorautonumfoliosequentials"));
 			QHash<QString, QStringList>::iterator i;
 			if (!m_cnd_unitfolio_max.isEmpty()) {
 				QDomElement cndfolioseq =
 						document.createElement(
-							"conductorunitfolioseq");
+							QStringLiteral("conductorunitfolioseq"));
 				folioSequentialsToXml(&m_cnd_unitfolio_max,
 						      &cndfolioseq,
-						      "sequf_",
-						      "unitfolioseq",
+							  QStringLiteral("sequf_"),
+							  QStringLiteral("unitfolioseq"),
 						      &document);
 				cndfoliosequential.appendChild(cndfolioseq);
 			}
 			if (!m_cnd_tenfolio_max.isEmpty()) {
 				QDomElement cndfolioseq =
 						document.createElement(
-							"conductortenfolioseq");
+							QStringLiteral("conductortenfolioseq"));
 				folioSequentialsToXml(&m_cnd_tenfolio_max,
 						      &cndfolioseq,
-						      "seqtf_",
-						      "tenfolioseq",
+							  QStringLiteral("seqtf_"),
+							  QStringLiteral("tenfolioseq"),
 						      &document);
 				cndfoliosequential.appendChild(cndfolioseq);
 			}
 			if (!m_cnd_hundredfolio_max.isEmpty()) {
 				QDomElement cndfolioseq =
 						document.createElement(
-							"conductorhundredfolioseq");
+							QStringLiteral("conductorhundredfolioseq"));
 				folioSequentialsToXml(&m_cnd_hundredfolio_max,
 						      &cndfolioseq,
-						      "seqhf_",
-						      "hundredfolioseq",
+							  QStringLiteral("seqhf_"),
+							  QStringLiteral("hundredfolioseq"),
 						      &document);
 				cndfoliosequential.appendChild(cndfolioseq);
 			}
@@ -851,7 +860,7 @@ QDomDocument Diagram::toXml(bool whole_content) {
 		//this method with whole_content to false,
 		//is often use to copy and paste the current selection
 		//so we add the id of the project where copy occur.
-		dom_root.setAttribute("projectId", QETApp::projectId(m_project));
+		dom_root.setAttribute(QStringLiteral("projectId"), QETApp::projectId(m_project));
 	}
 	document.appendChild(dom_root);
 
@@ -921,7 +930,7 @@ QDomDocument Diagram::toXml(bool whole_content) {
 	QHash<Terminal *, int> table_adr_id;
 
 	if (!list_elements.isEmpty()) {
-		auto dom_elements = document.createElement("elements");
+		auto dom_elements = document.createElement(QStringLiteral("elements"));
 		for (auto elmt : list_elements) {
 			dom_elements.appendChild(elmt->toXml(document,
 							     table_adr_id));
@@ -930,7 +939,7 @@ QDomDocument Diagram::toXml(bool whole_content) {
 	}
 
 	if (!list_conductors.isEmpty()) {
-		auto dom_conductors = document.createElement("conductors");
+		auto dom_conductors = document.createElement(QStringLiteral("conductors"));
 		for (auto cond : list_conductors) {
 			dom_conductors.appendChild(cond->toXml(document,
 							       table_adr_id));
@@ -939,7 +948,7 @@ QDomDocument Diagram::toXml(bool whole_content) {
 	}
 
 	if (!list_texts.isEmpty()) {
-		auto dom_texts = document.createElement("inputs");
+		auto dom_texts = document.createElement(QStringLiteral("inputs"));
 		for (auto dti : list_texts) {
 			dom_texts.appendChild(dti->toXml(document));
 		}
@@ -947,7 +956,7 @@ QDomDocument Diagram::toXml(bool whole_content) {
 	}
 
 	if (!list_images.isEmpty()) {
-		auto dom_images = document.createElement("images");
+		auto dom_images = document.createElement(QStringLiteral("images"));
 		for (auto dii : list_images) {
 			dom_images.appendChild(dii->toXml(document));
 		}
@@ -955,7 +964,7 @@ QDomDocument Diagram::toXml(bool whole_content) {
 	}
 
 	if (!list_shapes.isEmpty()) {
-		auto dom_shapes = document.createElement("shapes");
+		auto dom_shapes = document.createElement(QStringLiteral("shapes"));
 		for (auto dii : list_shapes) {
 			dom_shapes.appendChild(dii -> toXml(document));
 		}
@@ -963,7 +972,7 @@ QDomDocument Diagram::toXml(bool whole_content) {
 	}
 
 	if (table_vector.size()) {
-		auto tables = document.createElement("tables");
+		auto tables = document.createElement(QStringLiteral("tables"));
 		for (auto table : table_vector) {
 			tables.appendChild(table->toXml(document));
 		}
@@ -987,11 +996,15 @@ void Diagram::folioSequentialsToXml(QHash<QString,
 				    QDomElement *domElement,
 				    const QString& seq_type,
 				    const QString& type,
-				    QDomDocument *doc) {
+					QDomDocument *doc)
+{
 	QHash<QString, QStringList>::iterator i;
-	for (i = hash->begin(); i != hash->end(); i++) {
+
+	for (i = hash->begin(); i != hash->end(); i++)
+	{
 		QDomElement folioseq = doc->createElement(type);
-		folioseq.setAttribute("title", i.key());
+		folioseq.setAttribute(QStringLiteral("title"), i.key());
+
 		for (int j = 0; j < i.value().size(); j++) {
 			folioseq.setAttribute(seq_type + QString::number(j+1),
 					      i.value().at(j));
@@ -1096,14 +1109,15 @@ bool Diagram::initFromXml(QDomElement &document,
 	@return
 */
 Terminal* findTerminal(int conductor_index,
-		       QDomElement& f,
-		       QHash<int,
-		       Terminal *>& table_adr_id,
-		       QList<Element *>& added_elements) {
+					   QDomElement& f,
+					   QHash<int,Terminal *>& table_adr_id,
+					   QList<Element *>& added_elements)
+{
 	assert(conductor_index == 1 || conductor_index == 2);
 
-	QString element_index = "element" + QString::number(conductor_index);
-	QString terminal_index = "terminal" + QString::number(conductor_index);
+	auto str_index = QString::number(conductor_index);
+	QString element_index  = QStringLiteral("element")  + str_index;
+	QString terminal_index = QStringLiteral("terminal") + str_index;
 
 	if (f.hasAttribute(element_index)) {
 		QUuid element_uuid = QUuid(f.attribute(element_index));
@@ -1185,10 +1199,13 @@ Terminal* findTerminal(int conductor_index,
 bool Diagram::fromXml(QDomElement &document,
 		      QPointF position,
 		      bool consider_informations,
-		      DiagramContent *content_ptr) {
+			  DiagramContent *content_ptr)
+{
 	const QDomElement& root = document;
-	// The first element must be a diagram
-	if (root.tagName() != "diagram") return(false);
+		// The first element must be a diagram
+	if (root.tagName() != QLatin1String("diagram")) {
+		return(false);
+	}
 
 		// Read attributes of this diagram
 	if (consider_informations)
@@ -1197,56 +1214,57 @@ bool Diagram::fromXml(QDomElement &document,
 		border_and_titleblock.titleBlockFromXml(root);
 		border_and_titleblock.borderFromXml(root);
 
-		// Find the element "defaultconductor".
-		// If found, load default conductor properties.
+			// Find the element "defaultconductor".
+			// If found, load default conductor properties.
 		QDomElement default_conductor_elmt =
-				root.firstChildElement("defaultconductor");
+				root.firstChildElement(QStringLiteral("defaultconductor"));
 		if (!default_conductor_elmt.isNull()) {
 			defaultConductorProperties.fromXml(default_conductor_elmt);
 		}
 
-		// Load the autonum
-		m_conductors_autonum_name = root.attribute("conductorAutonum");
+			// Load the autonum
+		m_conductors_autonum_name = root.attribute(QStringLiteral("conductorAutonum"));
 
-		// Load Freeze New Element
-		m_freeze_new_elements = root.attribute("freezeNewElement").toInt();
+			// Load Freeze New Element
+		m_freeze_new_elements = root.attribute(QStringLiteral("freezeNewElement")).toInt();
 
-		// Load Freeze New Conductor
-		m_freeze_new_conductors_ = root.attribute("freezeNewConductor").toInt();
+			// Load Freeze New Conductor
+		m_freeze_new_conductors_ = root.attribute(QStringLiteral("freezeNewConductor")).toInt();
 
-		//Load Element Folio Sequential
+			//Load Element Folio Sequential
 		folioSequentialsFromXml(root,
 					&m_elmt_unitfolio_max,
-					"elementunitfolioseq",
-					"sequf_",
-					"unitfolioseq",
-					"elementautonumfoliosequentials");
+					QStringLiteral("elementunitfolioseq"),
+					QStringLiteral("sequf_"),
+					QStringLiteral("unitfolioseq"),
+					QStringLiteral("elementautonumfoliosequentials"));
 		folioSequentialsFromXml(root, &m_elmt_tenfolio_max,
-					"elementtenfolioseq",
-					"seqtf_",
-					"tenfolioseq",
-					"elementautonumfoliosequentials");
+					QStringLiteral("elementtenfolioseq"),
+					QStringLiteral("seqtf_"),
+					QStringLiteral("tenfolioseq"),
+					QStringLiteral("elementautonumfoliosequentials"));
 		folioSequentialsFromXml(root, &m_elmt_hundredfolio_max,
-					"elementhundredfolioseq",
-					"seqhf_",
-					"hundredfolioseq",
-					"elementautonumfoliosequentials");
+					QStringLiteral("elementhundredfolioseq"),
+					QStringLiteral("seqhf_"),
+					QStringLiteral("hundredfolioseq"),
+					QStringLiteral("elementautonumfoliosequentials"));
 
-		//Load Conductor Folio Sequential
+			//Load Conductor Folio Sequential
 		folioSequentialsFromXml(root, &m_cnd_unitfolio_max,
-					"conductorunitfolioseq",
-					"sequf_",
-					"unitfolioseq",
-					"conductorautonumfoliosequentials");
+					QStringLiteral("conductorunitfolioseq"),
+					QStringLiteral("sequf_"),
+					QStringLiteral("unitfolioseq"),
+					QStringLiteral("conductorautonumfoliosequentials"));
 		folioSequentialsFromXml(root, &m_cnd_tenfolio_max,
-					"conductortenfolioseq",
-					"seqtf_","tenfolioseq",
-					"conductorautonumfoliosequentials");
+					QStringLiteral("conductortenfolioseq"),
+					QStringLiteral("seqtf_"),
+					QStringLiteral("tenfolioseq"),
+					QStringLiteral("conductorautonumfoliosequentials"));
 		folioSequentialsFromXml(root, &m_cnd_hundredfolio_max,
-					"conductorhundredfolioseq",
-					"seqhf_",
-					"hundredfolioseq",
-					"conductorautonumfoliosequentials");
+					QStringLiteral("conductorhundredfolioseq"),
+					QStringLiteral("seqhf_"),
+					QStringLiteral("hundredfolioseq"),
+					QStringLiteral("conductorautonumfoliosequentials"));
 	}
 
 	// if child haven't got a child, loading is finish (diagram is empty)
@@ -1255,10 +1273,10 @@ bool Diagram::fromXml(QDomElement &document,
 	}
 
 		//If paste from another project
-	if (root.hasAttribute("projectId")) {
-		QETProject *other_project = QETApp::project(
-					root.attribute("projectId",
-						       "-1").toInt());
+	if (root.hasAttribute(QStringLiteral("projectId")))
+	{
+		QETProject *other_project = QETApp::project(root.attribute(QStringLiteral("projectId"),
+																   QStringLiteral("-1")).toInt());
 
 		/* We try to paste from another project,
 		 *  then befor paste elements,
@@ -1266,17 +1284,18 @@ bool Diagram::fromXml(QDomElement &document,
 		 *  (owned by other project)
 		 *  in the embedded collection of this project
 		 */
-		if (other_project && other_project != m_project) {
+		if (other_project && other_project != m_project)
+		{
 			ElementCollectionHandler ech;
-			foreach (QDomElement element_xml,
+			for (auto element_xml :
 				 QET::findInDomElement(root,
-						       "elements",
-						       "element")) {
+							   QStringLiteral("elements"),
+							   QStringLiteral("element"))) {
 				if (!Element::valideXml(element_xml)) continue;
 
-				QString type_id = element_xml.attribute("type");
+				QString type_id = element_xml.attribute(QStringLiteral("type"));
 
-				if (type_id.startsWith("embed://")) {
+				if (type_id.startsWith(QStringLiteral("embed://"))) {
 					ElementsLocation location(
 								type_id,
 								other_project);
@@ -1289,15 +1308,15 @@ bool Diagram::fromXml(QDomElement &document,
 		//Load all elements from the XML
 	QList<Element *> added_elements;
 	QHash<int, Terminal *> table_adr_id;
-	foreach (QDomElement element_xml,
-		 QET::findInDomElement(root, "elements", "element"))
+	for (auto element_xml :
+		 QET::findInDomElement(root, QStringLiteral("elements"), QStringLiteral("element")))
 	{
 		if (!Element::valideXml(element_xml)) continue;
 
 		// cree un element dont le type correspond a l'id type
-		QString type_id = element_xml.attribute("type");
+		QString type_id = element_xml.attribute(QStringLiteral("type"));
 		ElementsLocation element_location;
-		if (type_id.startsWith("embed://")) {
+		if (type_id.startsWith(QStringLiteral("embed://"))) {
 			element_location = ElementsLocation(type_id, m_project);
 		}
 		else {
@@ -1326,8 +1345,7 @@ bool Diagram::fromXml(QDomElement &document,
 		{
 			removeItem(nvel_elmt);
 			delete nvel_elmt;
-			qDebug() << "Diagram::fromXml() : Le chargement des "
-				    "parametres d'un element a echoue";
+			qDebug() << QStringLiteral("Diagram::fromXml() : Le chargement des parametres d'un element a echoue");
 		} else {
 			added_elements << nvel_elmt;
 		}
@@ -1335,9 +1353,9 @@ bool Diagram::fromXml(QDomElement &document,
 
 		// Load text
 	QList<IndependentTextItem *> added_texts;
-	foreach (QDomElement text_xml, QET::findInDomElement(root,
-							     "inputs",
-							     "input")) {
+	for (auto text_xml : QET::findInDomElement(root,
+											   QStringLiteral("inputs"),
+											   QStringLiteral("input"))) {
 		IndependentTextItem *iti = new IndependentTextItem();
 		iti -> fromXml(text_xml);
 		addItem(iti);
@@ -1346,9 +1364,9 @@ bool Diagram::fromXml(QDomElement &document,
 
 		// Load image
 	QList<DiagramImageItem *> added_images;
-	foreach (QDomElement image_xml, QET::findInDomElement(root,
-							      "images",
-							      "image")) {
+	for (auto image_xml : QET::findInDomElement(root,
+												QStringLiteral("images"),
+												QStringLiteral("image"))) {
 		DiagramImageItem *dii = new DiagramImageItem ();
 		dii -> fromXml(image_xml);
 		addItem(dii);
@@ -1357,9 +1375,9 @@ bool Diagram::fromXml(QDomElement &document,
 
 		// Load shape
 	QList<QetShapeItem *> added_shapes;
-	foreach (QDomElement shape_xml, QET::findInDomElement(root,
-							      "shapes",
-							      "shape")) {
+	for (auto shape_xml : QET::findInDomElement(root,
+												QStringLiteral("shapes"),
+												QStringLiteral("shape"))) {
 		QetShapeItem *dii = new QetShapeItem (QPointF(0,0));
 		dii -> fromXml(shape_xml);
 		addItem(dii);
@@ -1368,9 +1386,9 @@ bool Diagram::fromXml(QDomElement &document,
 
 		// Load conductor
 	QList<Conductor *> added_conductors;
-	foreach (QDomElement f, QET::findInDomElement(root,
-						      "conductors",
-						      "conductor"))
+	for (auto f : QET::findInDomElement(root,
+										QStringLiteral("conductors"),
+										QStringLiteral("conductor")))
 	{
 		if (!Conductor::valideXml(f)) continue;
 
@@ -1395,10 +1413,9 @@ bool Diagram::fromXml(QDomElement &document,
 
 		//Load tables
 	QVector<QetGraphicsTableItem *> added_tables;
-	for (auto dom_table
-	     : QETXML::subChild(root,
-				"tables",
-				QetGraphicsTableItem::xmlTagName()))
+	for (const auto &dom_table : QETXML::subChild(root,
+												  QStringLiteral("tables"),
+												  QetGraphicsTableItem::xmlTagName()))
 	{
 		auto table = new QetGraphicsTableItem();
 		addItem(table);
@@ -1410,12 +1427,12 @@ bool Diagram::fromXml(QDomElement &document,
 	if (position != QPointF())
 	{
 		QVector <QGraphicsItem *> added_items;
-		for (auto element : added_elements  ) added_items << element;
-		for (auto cond    : added_conductors) added_items << cond;
-		for (auto shape   : added_shapes    ) added_items << shape;
-		for (auto text    : added_texts     ) added_items << text;
-		for (auto image   : added_images    ) added_items << image;
-		for (auto table   : added_tables    ) added_items << table;
+		for (auto element : qAsConst(added_elements   )) added_items << element;
+		for (auto cond    : qAsConst(added_conductors )) added_items << cond;
+		for (auto shape   : qAsConst(added_shapes     )) added_items << shape;
+		for (auto text    : qAsConst(added_texts      )) added_items << text;
+		for (auto image   : qAsConst(added_images     )) added_items << image;
+		for (auto table   : qAsConst(added_tables     )) added_items << table;
 
 		//Get the top left corner of the rectangle that contain all added items
 		QRectF items_rect;
@@ -1487,7 +1504,7 @@ void Diagram::folioSequentialsFromXml(const QDomElement &root,
 		    = folioSeqAutoNum.firstChildElement(type);
 		    !folioseq.isNull();
 		    folioseq = folioseq.nextSiblingElement(type)) {
-			QString title = folioseq.attribute("title");
+			QString title = folioseq.attribute(QStringLiteral("title"));
 			QStringList list;
 			int i = 1;
 			while (folioseq.hasAttribute(seq
@@ -1871,10 +1888,10 @@ void Diagram::loadElmtFolioSeq()
 			|| !m_elmt_unitfolio_max.contains(title)) {
 		//Insert Initial Value
 		if (project()->elementAutoNumCurrentFormula().contains(
-					"%sequf_")) {
+					QStringLiteral("%sequf_"))) {
 			insertFolioSeqHash(&m_elmt_unitfolio_max,
 					   title,
-					   "unitfolio",
+					   QStringLiteral("unitfolio"),
 					   &nc);
 			project()->addElementAutoNum(title,nc);
 		}
@@ -1882,10 +1899,10 @@ void Diagram::loadElmtFolioSeq()
 	else if (m_elmt_unitfolio_max.contains(title)) {
 		//Load Folio Current Value
 		if (project()->elementAutoNumCurrentFormula().contains(
-					"%sequf_")) {
+					QStringLiteral("%sequf_"))) {
 			loadFolioSeqHash(&m_elmt_unitfolio_max,
 					 title,
-					 "unitfolio",
+					 QStringLiteral("unitfolio"),
 					 &nc);
 			project()->addElementAutoNum(title,nc);
 		}
@@ -1896,10 +1913,10 @@ void Diagram::loadElmtFolioSeq()
 			|| !m_elmt_tenfolio_max.contains(title)) {
 		//Insert Initial Value
 		if (project()->elementAutoNumCurrentFormula().contains(
-					"%seqtf_")) {
+					QStringLiteral("%seqtf_"))) {
 			insertFolioSeqHash(&m_elmt_tenfolio_max,
 					   title,
-					   "tenfolio",
+					   QStringLiteral("tenfolio"),
 					   &nc);
 			project()->addElementAutoNum(title,nc);
 		}
@@ -1907,10 +1924,10 @@ void Diagram::loadElmtFolioSeq()
 	else if (m_elmt_tenfolio_max.contains(title)) {
 		//Load Folio Current Value
 		if (project()->elementAutoNumCurrentFormula().contains(
-					"%seqtf_")) {
+					QStringLiteral("%seqtf_"))) {
 			loadFolioSeqHash(&m_elmt_tenfolio_max,
 					 title,
-					 "tenfolio",
+					 QStringLiteral("tenfolio"),
 					 &nc);
 			project()->addElementAutoNum(title,nc);
 		}
@@ -1921,10 +1938,10 @@ void Diagram::loadElmtFolioSeq()
 			|| !m_elmt_hundredfolio_max.contains(title)) {
 		//Insert Initial Value
 		if (project()->elementAutoNumCurrentFormula().contains(
-					"%seqhf_")) {
+					QStringLiteral("%seqhf_"))) {
 			insertFolioSeqHash(&m_elmt_hundredfolio_max,
 					   title,
-					   "hundredfolio",
+					   QStringLiteral("hundredfolio"),
 					   &nc);
 			project()->addElementAutoNum(title,nc);
 		}
@@ -1932,10 +1949,10 @@ void Diagram::loadElmtFolioSeq()
 	else if (m_elmt_hundredfolio_max.contains(title)) {
 		//Load Folio Current Value
 		if (project()->elementAutoNumCurrentFormula().contains(
-					"%seqhf_")) {
+					QStringLiteral("%seqhf_"))) {
 			loadFolioSeqHash(&m_elmt_hundredfolio_max,
 					 title,
-					 "hundredfolio",
+					 QStringLiteral("hundredfolio"),
 					 &nc);
 			project()->addElementAutoNum(title,nc);
 		}
@@ -1958,20 +1975,20 @@ void Diagram::loadCndFolioSeq()
 	if (m_cnd_unitfolio_max.isEmpty()
 			|| !m_cnd_unitfolio_max.contains(title)) {
 		//Insert Initial Value
-		if (formula.contains("%sequf_")) {
+		if (formula.contains(QStringLiteral("%sequf_"))) {
 			insertFolioSeqHash(&m_cnd_unitfolio_max,
 					   title,
-					   "unitfolio",
+					   QStringLiteral("unitfolio"),
 					   &nc);
 			project()->addConductorAutoNum(title,nc);
 		}
 	}
 	else if (m_cnd_unitfolio_max.contains(title)) {
 		//Load Folio Current Value
-		if (formula.contains("%sequf_")) {
+		if (formula.contains(QStringLiteral("%sequf_"))) {
 			loadFolioSeqHash(&m_cnd_unitfolio_max,
 					 title,
-					 "unitfolio",
+					 QStringLiteral("unitfolio"),
 					 &nc);
 			project()->addConductorAutoNum(title,nc);
 		}
@@ -1981,20 +1998,20 @@ void Diagram::loadCndFolioSeq()
 	if (m_cnd_tenfolio_max.isEmpty()
 			|| !m_cnd_tenfolio_max.contains(title)) {
 		//Insert Initial Value
-		if (formula.contains("%seqtf_")) {
+		if (formula.contains(QStringLiteral("%seqtf_"))) {
 			insertFolioSeqHash(&m_cnd_tenfolio_max,
 					   title,
-					   "tenfolio",
+					   QStringLiteral("tenfolio"),
 					   &nc);
 			project()->addConductorAutoNum(title,nc);
 		}
 	}
 	else if (m_cnd_tenfolio_max.contains(title)) {
 		//Load Folio Current Value
-		if (formula.contains("%seqtf_")) {
+		if (formula.contains(QStringLiteral("%seqtf_"))) {
 			loadFolioSeqHash(&m_cnd_tenfolio_max,
 					 title,
-					 "tenfolio",
+					 QStringLiteral("tenfolio"),
 					 &nc);
 			project()->addConductorAutoNum(title,nc);
 		}
@@ -2004,20 +2021,20 @@ void Diagram::loadCndFolioSeq()
 	if (m_cnd_hundredfolio_max.isEmpty()
 			|| !m_cnd_hundredfolio_max.contains(title)) {
 		//Insert Initial Value
-		if (formula.contains("%seqhf_")) {
+		if (formula.contains(QStringLiteral("%seqhf_"))) {
 			insertFolioSeqHash(&m_cnd_hundredfolio_max,
 					   title,
-					   "hundredfolio",
+					   QStringLiteral("hundredfolio"),
 					   &nc);
 			project()->addConductorAutoNum(title,nc);
 		}
 	}
 	else if (m_cnd_hundredfolio_max.contains(title)) {
 		//Load Folio Current Value
-		if (formula.contains("%seqhf_")) {
+		if (formula.contains(QStringLiteral("%seqhf_"))) {
 			loadFolioSeqHash(&m_cnd_hundredfolio_max,
 					 title,
-					 "hundredfolio",
+					 QStringLiteral("hundredfolio"),
 					 &nc);
 			project()->addConductorAutoNum(title,nc);
 		}
@@ -2257,10 +2274,10 @@ DiagramPosition Diagram::convertPosition(const QPointF &pos) {
 QPointF Diagram::snapToGrid(const QPointF &p)
 {
 	QSettings settings;
-	int xGrid = settings.value("diagrameditor/Xgrid",
-				   Diagram::xGrid).toInt();
-	int yGrid = settings.value("diagrameditor/Ygrid",
-				   Diagram::yGrid).toInt();
+	int xGrid = settings.value(QStringLiteral("diagrameditor/Xgrid"),
+							   Diagram::xGrid).toInt();
+	int yGrid = settings.value(QStringLiteral("diagrameditor/Ygrid"),
+							   Diagram::yGrid).toInt();
 
 	//Return a point rounded to the nearest pixel
 	if (QApplication::keyboardModifiers().testFlag(Qt::ControlModifier))
@@ -2330,8 +2347,8 @@ QSet<Conductor *> Diagram::selectedConductors() const
 bool Diagram::clipboardMayContainDiagram()
 {
 	QString clipboard_text = QApplication::clipboard() -> text().trimmed();
-	bool may_be_diagram = clipboard_text.startsWith("<diagram")
-			&& clipboard_text.endsWith("</diagram>");
+	bool may_be_diagram = clipboard_text.startsWith(QStringLiteral("<diagram"))
+			&& clipboard_text.endsWith(QStringLiteral("</diagram>"));
 	return(may_be_diagram);
 }
 

sources/diagram.h

@@ -283,6 +283,7 @@ class Diagram : public QGraphicsScene
 		void findElementRequired(const ElementsLocation &);
 
 		void diagramActivated();
+		void diagramInformationChanged();
 };
 Q_DECLARE_METATYPE(Diagram *)
 

sources/diagramview.cpp

@@ -1219,13 +1219,20 @@ QList<QAction *> DiagramView::contextMenuActions() const
 */
 void DiagramView::contextMenuEvent(QContextMenuEvent *e)
 {
-	if (QGraphicsItem *qgi = m_diagram->itemAt(mapToScene(e->pos()), transform()))
+	if (auto qgi = m_diagram->itemAt(mapToScene(e->pos()), transform()))
 	{
-		if (!qgi -> isSelected()) {
+		if (!qgi->isSelected()) {
 			m_diagram->clearSelection();
 		}
 
-		qgi->setSelected(true);
+			// At this step qgi can be deleted for exemple if qgi is a QetGraphicsHandlerItem.
+			// When we call clearSelection the parent item of the handler
+			// is deselected and so delete all handlers, in this case,
+			// qgi become a dangling pointer.
+			// we need to call again itemAt.
+		if (auto item_ = m_diagram->itemAt(mapToScene(e->pos()), transform())) {
+			item_->setSelected(true);
+		}
 	}
 
 	if (m_diagram->selectedItems().isEmpty())

sources/editor/graphicspart/customelementgraphicpart.cpp

@@ -1308,14 +1308,29 @@ void CustomElementGraphicPart::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
 
 void CustomElementGraphicPart::mousePressEvent(QGraphicsSceneMouseEvent *event)
 {
-	if(event->button() == Qt::LeftButton)
+	if(event->button() == Qt::LeftButton) {
 		m_origin_pos = this->pos();
+		m_first_move = true;
+	}
 
 	QGraphicsObject::mousePressEvent(event);
 }
 
 void CustomElementGraphicPart::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
 {
+		//m_first_move is used to avoid an unwanted behavior
+		//when the properties dock widget is displayed :
+		//1 there is no selection
+		//2 the dock widget width is set to minimum
+		//3 select a part, the dock widget gain new widgets used to edit
+		//the current selected part and the width of the dock grow
+		//so the width of the QGraphicsView is reduced and cause a mouse move event.
+		//When this case occur the part is moved but they should not. This bool fix it.
+	if (Q_UNLIKELY(m_first_move)) {
+		m_first_move = false;
+		return;
+	}
+
 	if((event->buttons() & Qt::LeftButton) && (flags() & QGraphicsItem::ItemIsMovable))
 	{
 		QPointF pos = event->scenePos() + (m_origin_pos - event->buttonDownScenePos(Qt::LeftButton));

sources/editor/graphicspart/customelementgraphicpart.h

@@ -328,6 +328,7 @@ class CustomElementGraphicPart : public QGraphicsObject, public CustomElementPar
 		Color _color;
 		bool _antialiased;
 		QPointF m_origin_pos;
+		bool m_first_move;
 };
 
 typedef CustomElementGraphicPart CEGP;

sources/editor/styleeditor.cpp

@@ -389,12 +389,12 @@ StyleEditor::StyleEditor(QETElementEditor *editor, CustomElementGraphicPart *p,
 	auto grid_layout = new QGridLayout(this);
 	grid_layout->addWidget(new QLabel(tr("Contour :")), 0,0, Qt::AlignRight);
 	grid_layout->addWidget(outline_color, 0, 1);
-	grid_layout->addWidget(new QLabel(tr("Remplissage :")), 0, 2, Qt::AlignRight);
-	grid_layout->addWidget(filling_color, 0, 3);
-	grid_layout->addWidget(new QLabel(tr("Style :")), 1, 0, Qt::AlignRight);
-	grid_layout->addWidget(line_style, 1, 1);
-	grid_layout->addWidget(new QLabel(tr("Épaisseur :")), 1, 2, Qt::AlignRight);
-	grid_layout->addWidget(size_weight, 1 ,3);
+	grid_layout->addWidget(new QLabel(tr("Remplissage :")), 1, 0, Qt::AlignRight);
+	grid_layout->addWidget(filling_color, 1, 1);
+	grid_layout->addWidget(new QLabel(tr("Style :")), 2, 0, Qt::AlignRight);
+	grid_layout->addWidget(line_style, 2, 1);
+	grid_layout->addWidget(new QLabel(tr("Épaisseur :")), 3, 0, Qt::AlignRight);
+	grid_layout->addWidget(size_weight, 3 ,1);
 	main_layout->addItem(grid_layout);
 
 	main_layout -> addWidget(antialiasing);

sources/factory/qetgraphicstablefactory.cpp

@@ -79,10 +79,9 @@ void QetGraphicsTableFactory::create(Diagram *diagram, AddTableDialog *dialog)
 	}
 
 		//Add new table if needed and option checked
-	dialog->addNewTableToNewDiagram();
-	table_->model()->rowCount();
-	table_->displayNRow();
-	if (dialog->addNewTableToNewDiagram() && table_->model()->rowCount() > table_->displayNRow())
+	if (dialog->addNewTableToNewDiagram()
+		&& table_->displayNRow() > 0
+		&& table_->model()->rowCount() > table_->displayNRow())
 	{
 		auto already_displayed_rows = table_->displayNRow();
 		auto project_ = diagram->project();

sources/machine_info.cpp

@@ -29,20 +29,21 @@
 #endif
 #include "qet.h"
 
+MachineInfo *MachineInfo::m_instance = nullptr;
 /**
-	@brief Machine_info::Machine_info
+	@brief MachineInfo::MachineInfo
 	@param parent
 */
-Machine_info::Machine_info(QObject *parent) : QObject(parent)
+MachineInfo::MachineInfo()
 {
 	init_get_Screen_info();
 	init_get_cpu_info();
 }
 
 /**
-	@brief Machine_info::send_info_to_debug
+	@brief MachineInfo::send_info_to_debug
 */
-void Machine_info::send_info_to_debug()
+void MachineInfo::send_info_to_debug()
 {
 	qInfo()<<"debugging enabled:"
 		<< QLibraryInfo::isDebugBuild();
@@ -120,7 +121,7 @@ void Machine_info::send_info_to_debug()
 #endif
 	qInfo() << "GitRevision " + QString(GIT_COMMIT_SHA);
 	qInfo()<< "QElectroTech V " + QET::displayedVersion;
-	qInfo()<< tr("Compilation : ") + pc.built.version;
+	qInfo()<< QObject::tr("Compilation : ") + pc.built.version;
 	qInfo()<< "Built with Qt " + pc.built.QT
 		  + " - Date : " + pc.built.date
 		  + " : " + pc.built.time;
@@ -151,10 +152,10 @@ void Machine_info::send_info_to_debug()
 }
 
 /**
-	@brief Machine_info::init_get_Screen_info
+	@brief MachineInfo::init_get_Screen_info
 	Finds the largest screen and saves the values
 */
-void Machine_info::init_get_Screen_info()
+void MachineInfo::init_get_Screen_info()
 {
 	const auto screens = qApp->screens();
 	pc.screen.count=screens.count();
@@ -174,9 +175,9 @@ void Machine_info::init_get_Screen_info()
 }
 
 /**
-	@brief Machine_info::init_get_cpu_info
+	@brief MachineInfo::init_get_cpu_info
 */
-void Machine_info::init_get_cpu_info()
+void MachineInfo::init_get_cpu_info()
 {
 #ifdef __GNUC__
 #ifdef __APPLE_CC__
@@ -191,9 +192,9 @@ void Machine_info::init_get_cpu_info()
 }
 
 /**
-	@brief Machine_info::init_get_cpu_info_linux
+	@brief MachineInfo::init_get_cpu_info_linux
 */
-void Machine_info::init_get_cpu_info_linux()
+void MachineInfo::init_get_cpu_info_linux()
 {
 	QProcess linuxcpuinfo;
 	linuxcpuinfo.start("bash", QStringList()
@@ -237,9 +238,9 @@ void Machine_info::init_get_cpu_info_linux()
 }
 
 /**
-	@brief Machine_info::init_get_cpu_info_winnt
+	@brief MachineInfo::init_get_cpu_info_winnt
 */
-void Machine_info::init_get_cpu_info_winnt()
+void MachineInfo::init_get_cpu_info_winnt()
 {
 	QProcess wincpuinfo;
 	wincpuinfo.start("wmic",
@@ -291,9 +292,9 @@ void Machine_info::init_get_cpu_info_winnt()
 }
 
 /**
-	@brief Machine_info::init_get_cpu_info_macos
+	@brief MachineInfo::init_get_cpu_info_macos
 */
-void Machine_info::init_get_cpu_info_macos()
+void MachineInfo::init_get_cpu_info_macos()
 {
 	QProcess macoscpuinfo;
 	macoscpuinfo.start("bash",
@@ -317,30 +318,28 @@ void Machine_info::init_get_cpu_info_macos()
 }
 
 /**
-	@brief Machine_info::i_max_screen_width
+	@brief MachineInfo::i_max_screen_width
 	@return max screen width
 */
-int32_t Machine_info::i_max_screen_width()
-{
+int32_t MachineInfo::i_max_screen_width() {
 	return pc.screen.Max_width;
 }
 
 /**
-	@brief Machine_info::i_max_screen_height
+	@brief MachineInfo::i_max_screen_height
 	@return max screen height
 */
-int32_t Machine_info::i_max_screen_height()
-{
+int32_t MachineInfo::i_max_screen_height() {
 	return pc.screen.Max_height;
 }
 
 /**
-	@brief Machine_info::compilation_info
+	@brief MachineInfo::compilation_info
 	@return compilation_info
 */
-QString Machine_info::compilation_info()
+QString MachineInfo::compilation_info()
 {
-	QString compilation_info = "<br />" + tr("Compilation :   ");
+	QString compilation_info = "<br />" + QObject::tr("Compilation :   ");
 	compilation_info +=pc.built.version;
 	compilation_info += "<br>Built with Qt " + pc.built.QT;
 	compilation_info += " - Date : " + pc.built.date;

sources/machine_info.h

@@ -18,31 +18,57 @@
 #ifndef MACHINE_INFO_H
 #define MACHINE_INFO_H
 
-#include <QObject>
 #include <QThread>
+#include <QMutex>
 
 /**
-	@brief The Machine_info class
+	@brief The MachineInfo class
 	This class hold information from your PC.
 */
-class Machine_info : public QObject
+class MachineInfo
 {
-	Q_OBJECT
-public:
-	explicit Machine_info(QObject *parent = nullptr);
-	int32_t i_max_screen_width();
-	int32_t i_max_screen_height();
-	QString compilation_info();
-	void send_info_to_debug();
+		static MachineInfo *m_instance;
+	public:
+		static MachineInfo *instance()
+		{
+			static QMutex mutex;
+			if (!m_instance)
+			{
+				mutex.lock();
+				if (!m_instance) {
+					m_instance = new MachineInfo();
+				}
+				mutex.unlock();
+			}
 
-signals:
+			return m_instance;
+		}
+
+		static void dropInstance()
+		{
+			static QMutex mutex;
+			if (m_instance) {
+				mutex.lock();
+				delete m_instance;
+				m_instance = nullptr;
+				mutex.unlock();
+			}
+		}
+
+		int32_t i_max_screen_width();
+		int32_t i_max_screen_height();
+		QString compilation_info();
+		void send_info_to_debug();
+
+
+	private:
+		MachineInfo();
+		void init_get_Screen_info();
+		void init_get_cpu_info();
+		void init_get_cpu_info_linux();
+		void init_get_cpu_info_winnt();
+		void init_get_cpu_info_macos();
 
-private:
-	void init_get_Screen_info();
-	void init_get_cpu_info();
-	void init_get_cpu_info_linux();
-	void init_get_cpu_info_winnt();
-	void init_get_cpu_info_macos();
 	struct Pc
 	{
 		struct Screen

sources/main.cpp

@@ -22,6 +22,7 @@
 #include "utils/macosxopenevent.h"
 
 #include <QStyleFactory>
+#include <QtConcurrent>
 
 /**
 	@brief myMessageOutput
@@ -200,16 +201,15 @@ int main(int argc, char **argv)
 	QObject::connect(&app, &SingleApplication::receivedMessage,
 			 &qetapp, &QETApp::receiveMessage);
 
-	// for debugging
-	qInstallMessageHandler(myMessageOutput);
-	qInfo("Start-up");
-	// delete old log files of max 7 days old.
-	delete_old_log_files(7);
-	{
-		Machine_info *my_ma =new Machine_info();
-		my_ma->send_info_to_debug();
-		delete my_ma;
-	}
+    QtConcurrent::run([=]()
+    {
+            // for debugging
+        qInstallMessageHandler(myMessageOutput);
+        qInfo("Start-up");
+            // delete old log files of max 7 days old.
+        delete_old_log_files(7);
+		MachineInfo::instance()->send_info_to_debug();
+    });
 	return app.exec();
 }
 

sources/properties/xrefproperties.cpp

@@ -187,13 +187,14 @@ QHash<QString, XRefProperties> XRefProperties::defaultProperties()
 }
 
 bool XRefProperties::operator ==(const XRefProperties &xrp) const{
-	return (m_show_power_ctc == xrp.m_show_power_ctc &&
-			m_display == xrp.m_display &&
-			m_snap_to == xrp.m_snap_to &&
-			m_prefix == xrp.m_prefix &&
-			m_master_label == xrp.m_master_label &&
-			 m_offset == xrp.m_offset &&
-			m_xref_pos == xrp.m_xref_pos );
+	return (m_show_power_ctc == xrp.m_show_power_ctc
+			&& m_display     == xrp.m_display
+			&& m_snap_to     == xrp.m_snap_to
+			&& m_prefix      == xrp.m_prefix
+			&& m_master_label== xrp.m_master_label
+			&& m_offset      == xrp.m_offset
+			&& m_xref_pos    == xrp.m_xref_pos
+			&& m_slave_label == xrp.m_slave_label);
 }
 
 bool XRefProperties::operator !=(const XRefProperties &xrp) const

sources/qet.h

@@ -29,9 +29,9 @@ class QActionGroup;
 */
 namespace QET {
 	/// QElectroTech version (as string, used to mark projects and elements XML documents)
-	const QString version = "0.80";
+	const QString version = "0.81";
 	/// QElectroTech displayed version
-	const QString displayedVersion = "0.80";
+	const QString displayedVersion = "0.81";
 	QString license();
 	
 		//Describe the current state of a graphic item

sources/qetapp.cpp

@@ -35,6 +35,7 @@
 #include "titleblocktemplate.h"
 #include "ui/aboutqetdialog.h"
 #include "ui/configpage/generalconfigurationpage.h"
+#include "machine_info.h"
 
 #include <cstdlib>
 #include <iostream>
@@ -70,6 +71,9 @@ QString QETApp::m_user_custom_elements_dir = QString();
 QString QETApp::m_user_custom_tbt_dir = QString();
 QETApp *QETApp::m_qetapp = nullptr;
 
+bool lang_is_set = false;
+QString system_language = QString();
+
 
 /**
 	@brief QETApp::QETApp
@@ -146,6 +150,7 @@ QETApp::~QETApp()
 
 	ElementFactory::dropInstance();
 	ElementPictureFactory::dropInstance();
+	MachineInfo::dropInstance();
 }
 
 
@@ -225,11 +230,16 @@ void QETApp::setLanguage(const QString &desired_language) {
 */
 QString QETApp::langFromSetting()
 {
-	QSettings settings;
-	QString system_language = settings.value("lang", "system").toString();
-	if(system_language == "system") {
-		system_language = QLocale::system().name().left(2);
+	if (!lang_is_set)
+	{
+		QSettings settings;
+		system_language = settings.value("lang", "system").toString();
+		if(system_language == "system") {
+			system_language = QLocale::system().name().left(2);
+		}
+		lang_is_set = true;
 	}
+
 	return system_language;
 }
 /**

sources/qetgraphicsitem/ViewItem/qetgraphicsheaderitem.h

@@ -84,7 +84,7 @@ class QetGraphicsHeaderItem : public QGraphicsObject
 
 		QRect m_current_rect;
 		QRectF m_bounding_rect;
-		QAbstractItemModel *m_model = nullptr;
+		QPointer<QAbstractItemModel> m_model;
 
 		QVector<int>
 		m_sections_minimum_width,

sources/qetgraphicsitem/ViewItem/qetgraphicstableitem.cpp

@@ -156,7 +156,17 @@ QetGraphicsTableItem::QetGraphicsTableItem(QGraphicsItem *parent) :
 }
 
 QetGraphicsTableItem::~QetGraphicsTableItem()
-{}
+{
+	if (m_previous_table) {
+		if (m_next_table) {
+			m_previous_table->setNextTable(m_next_table);
+		} else {
+			m_previous_table->setNextTable(nullptr);
+		}
+	} else if (m_next_table) {
+		m_next_table->setPreviousTable(nullptr);
+	}
+}
 
 /**
 	@brief QetGraphicsTableItem::setModel
@@ -175,7 +185,7 @@ void QetGraphicsTableItem::setModel(QAbstractItemModel *model)
 			   this, &QetGraphicsTableItem::modelReseted);
 	}
 	m_model = model;
-	m_header_item->setModel(model);
+	m_header_item->setModel(m_model);
 
 	setUpColumnAndRowMinimumSize();
 	adjustSize();
@@ -200,7 +210,7 @@ void QetGraphicsTableItem::setModel(QAbstractItemModel *model)
 */
 QAbstractItemModel *QetGraphicsTableItem::model() const
 {
-	return m_model;
+	return m_model.data();
 }
 
 /**
@@ -270,8 +280,8 @@ void QetGraphicsTableItem::paint(
 	if (m_previous_table) //Remove the number of row already displayed by previous tables
 		row_count -= m_previous_table->displayNRowOffset();
 
-	if (m_number_of_displayed_row > 0) //User override the number of row to display
-		row_count = std::min(row_count, m_number_of_displayed_row);
+	if (m_number_of_row_to_display > 0) //User override the number of row to display
+		row_count = std::min(row_count, m_number_of_row_to_display);
 
 		//Draw horizontal lines
 	auto cell_height =  static_cast<double>(m_current_size.height())/static_cast<double>(row_count);
@@ -364,8 +374,8 @@ QSize QetGraphicsTableItem::minimumSize() const
 		row_count -= m_previous_table->displayNRowOffset();
 	}
 
-	if (m_number_of_displayed_row > 0)
-		row_count = std::min(row_count, m_number_of_displayed_row);
+	if (m_number_of_row_to_display > 0)
+		row_count = std::min(row_count, m_number_of_row_to_display);
 
 
 		//m_minimum_column_width already take in count the minimum size of header
@@ -389,7 +399,7 @@ QSize QetGraphicsTableItem::minimumSize() const
 */
 void QetGraphicsTableItem::setDisplayNRow(const int &number)
 {
-	m_number_of_displayed_row = number;
+	m_number_of_row_to_display = number;
 	setToMinimumHeight();
 	if (m_next_table)
 		m_next_table->previousTableDisplayRowChanged();
@@ -402,7 +412,7 @@ void QetGraphicsTableItem::setDisplayNRow(const int &number)
 */
 int QetGraphicsTableItem::displayNRow() const
 {
-	return m_number_of_displayed_row;
+	return m_number_of_row_to_display;
 }
 
 /**
@@ -489,19 +499,41 @@ QString QetGraphicsTableItem::tableName() const
 */
 int QetGraphicsTableItem::displayNRowOffset() const
 {
-	auto offset_ = m_number_of_displayed_row;
+	auto offset_ = m_number_of_row_to_display;
 	if(m_previous_table)
 		offset_ += m_previous_table->displayNRowOffset();
 
 	return offset_;
 }
 
-QetGraphicsTableItem *QetGraphicsTableItem::previousTable() const
+/**
+ * @brief QetGraphicsTableItem::displayedRowCount
+ * @return the number of row displayed by this table
+ */
+int QetGraphicsTableItem::displayedRowCount() const
+{
+	if (!m_model) {
+		return 0;
+	}
+
+		//Calcule the number of rows to display.
+	auto row_count = m_model->rowCount();
+
+	if (m_previous_table) //Remove the number of row already displayed by previous tables
+		row_count -= m_previous_table->displayNRowOffset();
+
+	if (m_number_of_row_to_display > 0) //User override the number of row to display
+		row_count = std::min(row_count, m_number_of_row_to_display);
+
+	return row_count;
+}
+
+QPointer<QetGraphicsTableItem> QetGraphicsTableItem::previousTable() const
 {
 	return m_previous_table;
 }
 
-QetGraphicsTableItem *QetGraphicsTableItem::nextTable() const
+QPointer<QetGraphicsTableItem> QetGraphicsTableItem::nextTable() const
 {
 	return m_next_table;
 }
@@ -555,7 +587,7 @@ QDomElement QetGraphicsTableItem::toXml(QDomDocument &dom_document) const
 	dom_table.setAttribute("height", QString::number(m_current_size.height()));
 	dom_table.setAttribute("uuid", m_uuid.toString());
 	dom_table.setAttribute("name", m_name);
-	dom_table.setAttribute("display_n_row", QString::number(m_number_of_displayed_row));
+	dom_table.setAttribute("display_n_row", QString::number(m_number_of_row_to_display));
 
 		//Add the header xml
 	dom_table.appendChild(m_header_item->toXml(dom_document));
@@ -571,7 +603,7 @@ QDomElement QetGraphicsTableItem::toXml(QDomDocument &dom_document) const
 	{
 			//Add model
 		auto dom_model = dom_document.createElement("model");
-		auto project_db_model = static_cast<ProjectDBModel *>(m_model);
+		auto project_db_model = static_cast<ProjectDBModel *>(m_model.data());
 		dom_model.appendChild(project_db_model->toXml(dom_document));
 		dom_table.appendChild(dom_model);
 
@@ -613,7 +645,7 @@ void QetGraphicsTableItem::fromXml(const QDomElement &dom_element)
 					"uuid",
 					QUuid::createUuid().toString()));
 	m_name = dom_element.attribute("name");
-	m_number_of_displayed_row = dom_element.attribute(
+	m_number_of_row_to_display = dom_element.attribute(
 				"display_n_row",
 				QString::number(0)).toInt();
 
@@ -678,8 +710,8 @@ bool QetGraphicsTableItem::toDXF(const QString &filepath)
 	if (m_previous_table) //Remove the number of row already displayed by previous tables
 		row_count -= m_previous_table->displayNRowOffset();
 
-	if (m_number_of_displayed_row > 0) //User override the number of row to display
-		row_count = std::min(row_count, m_number_of_displayed_row);
+	if (m_number_of_row_to_display > 0) //User override the number of row to display
+		row_count = std::min(row_count, m_number_of_row_to_display);
 
 		//Draw horizontal lines
 	auto cell_height =  static_cast<double>(m_current_size.height())/static_cast<double>(row_count);
@@ -806,13 +838,18 @@ QVariant QetGraphicsTableItem::itemChange(
 	return QetGraphicsItem::itemChange(change, value);
 }
 
+/**
+ * @brief QetGraphicsTableItem::modelReseted
+ */
 void QetGraphicsTableItem::modelReseted()
 {
 	dataChanged(m_model->index(0,0), m_model->index(0,0), QVector<int>());
 	setToMinimumHeight();
 
-	if (!previousTable()) { //this is the head table
+	if (!previousTable()) //this is the head table
+	{
 		checkInsufficientRowsCount(this);
+		removeUselessNextTable();
 	}
 }
 
@@ -1046,3 +1083,24 @@ void QetGraphicsTableItem::previousTableDisplayRowChanged()
 		m_next_table->previousTableDisplayRowChanged();
 	}
 }
+
+/**
+ * @brief QetGraphicsTableItem::removeUselessNextTable
+ * Remove next table if useless, an useless table with 0 row displayed.
+ * If \p recursive is true check and remove for all sub next table.
+ * @param recursive
+ */
+void QetGraphicsTableItem::removeUselessNextTable(bool recursive)
+{
+	if (m_next_table)
+	{
+		if (recursive) {
+			m_next_table->removeUselessNextTable();
+		}
+		if (m_next_table->displayedRowCount() <= 0)
+		{
+			m_next_table.data()->deleteLater();
+			m_next_table.clear();
+		}
+	}
+}

sources/qetgraphicsitem/ViewItem/qetgraphicstableitem.h

@@ -79,8 +79,9 @@ class QetGraphicsTableItem : public QetGraphicsItem
 		void setTableName(const QString &name);
 		QString tableName() const;
 		int displayNRowOffset() const;
-		QetGraphicsTableItem *previousTable() const;
-		QetGraphicsTableItem *nextTable() const;
+		int displayedRowCount() const;
+		QPointer<QetGraphicsTableItem> previousTable() const;
+		QPointer<QetGraphicsTableItem> nextTable() const;
 		void setToMinimumHeight();
 		void initLink();
 		QUuid uuid() const {return m_uuid;}
@@ -120,13 +121,14 @@ class QetGraphicsTableItem : public QetGraphicsItem
 		void headerSectionResized();
 		void adjustSize();
 		void previousTableDisplayRowChanged();
+		void removeUselessNextTable(bool recursive = true);
 
-		QAbstractItemModel *m_model= nullptr;
+		QPointer<QAbstractItemModel> m_model;
 
 		QVector<int> m_minimum_column_width;
 		int
 		m_minimum_row_height,
-		m_number_of_displayed_row = 0,
+		m_number_of_row_to_display = 0,
 		m_br_margin = 10;
 
 		QSize
@@ -139,9 +141,8 @@ class QetGraphicsTableItem : public QetGraphicsItem
 		QetGraphicsHandlerItem m_handler_item;
 		QetGraphicsHeaderItem *m_header_item = nullptr;
 
-		QetGraphicsTableItem
-		*m_previous_table = nullptr,
-		*m_next_table = nullptr;
+		QPointer<QetGraphicsTableItem> m_previous_table,
+		m_next_table;
 
 		QString m_name;
 		QUuid

sources/qetgraphicsitem/crossrefitem.cpp

@@ -128,6 +128,15 @@ void CrossRefItem::setUpConnection()
 		m_update_connection << connect(m_element,
 					       &Element::linkedElementChanged,
 					       this, &CrossRefItem::linkedChanged);
+
+		auto diagram_ = dynamic_cast<Diagram *>(this->scene());
+		auto formula_ = m_properties.masterLabel();
+		if (diagram_ &&
+			formula_.contains("%F"))
+		{
+			m_update_connection << connect(diagram_ , &Diagram::diagramInformationChanged,
+										   this, &CrossRefItem::updateLabel);
+		}
 		linkedChanged();
 		updateLabel();
 	}
@@ -161,13 +170,9 @@ QPainterPath CrossRefItem::shape() const{
 QString CrossRefItem::elementPositionText(
 		const Element *elmt, const bool &add_prefix) const
 {
-	XRefProperties xrp =
-			m_element->diagram()->project()->defaultXRefProperties(
-				m_element->kindInformations()["type"].toString());
-	QString formula = xrp.masterLabel();
 	autonum::sequentialNumbers seq;
 	QString txt = autonum::AssignVariables::formulaToLabel(
-				formula,
+				m_properties.masterLabel(),
 				seq, elmt->diagram(),
 				elmt);
 

sources/qetgraphicsitem/dynamicelementtextitem.cpp

@@ -1326,6 +1326,7 @@ void DynamicElementTextItem::updateXref()
 					m_update_slave_Xref_connection << connect(m_master_element.data(), &Element::xChanged,                       this, &DynamicElementTextItem::updateXref);
 					m_update_slave_Xref_connection << connect(m_master_element.data(), &Element::yChanged,                       this, &DynamicElementTextItem::updateXref);
 					m_update_slave_Xref_connection << connect(m_master_element.data(), &Element::elementInfoChange,              this, &DynamicElementTextItem::updateXref);
+					m_update_slave_Xref_connection << connect(diagram(), &Diagram::diagramInformationChanged,                    this, &DynamicElementTextItem::updateXref);
 					m_update_slave_Xref_connection << connect(diagram()->project(),    &QETProject::projectDiagramsOrderChanged, this, &DynamicElementTextItem::updateXref);
 					m_update_slave_Xref_connection << connect(diagram()->project(),    &QETProject::diagramRemoved,              this, &DynamicElementTextItem::updateXref);
 					m_update_slave_Xref_connection << connect(diagram()->project(),    &QETProject::XRefPropertiesChanged,       this, &DynamicElementTextItem::updateXref);

sources/qetgraphicsitem/element.cpp

@@ -736,50 +736,40 @@ bool Element::fromXml(
 	}
 
 	QHash<int, Terminal *> priv_id_adr;
-	int terminals_non_trouvees = 0;
-	foreach(QGraphicsItem *qgi, childItems()) {
-		if (Terminal *p = qgraphicsitem_cast<Terminal *>(qgi)) {
-			bool terminal_trouvee = false;
-			foreach(QDomElement qde, liste_terminals) {
-				if (p -> fromXml(qde)) {
-					priv_id_adr.insert(
-							qde.attribute(
-								"id").toInt(),
-							p);
-					terminal_trouvee = true;
-					// We used to break here, because we did not expect
-					// several terminals to share the same position.
-					// Of course, it finally happened.
+
+	for (auto *qgi : childItems())
+	{
+		if (auto terminal_ = qgraphicsitem_cast<Terminal *>(qgi))
+		{
+			for(auto qde : liste_terminals)
+			{
+				if (terminal_ -> fromXml(qde))
+				{
+					priv_id_adr.insert(qde.attribute(QStringLiteral("id")).toInt(),
+									   terminal_);
 				}
 			}
-			if (!terminal_trouvee) ++ terminals_non_trouvees;
 		}
 	}
 
-	if (terminals_non_trouvees > 0)
+
+		//Check that associated id/adress doesn't conflict with table_id_adr
+	for(auto found_id : priv_id_adr.keys())
 	{
-		m_state = QET::GIOK;
-		return(false);
-	}
-	else
-	{
-		// verifie que les associations id / adr n'entrent pas en conflit avec table_id_adr
-		foreach(int id_trouve, priv_id_adr.keys())
+		if (table_id_adr.contains(found_id))
 		{
-			if (table_id_adr.contains(id_trouve))
-			{
-				// cet element possede un id qui est deja reference (= conflit)
-				m_state = QET::GIOK;
-				return(false);
-			}
-		}
-		// copie des associations id / adr
-		foreach(int id_trouve, priv_id_adr.keys()) {
-			table_id_adr.insert(id_trouve,
-						priv_id_adr.value(id_trouve));
+				//This element got an id who is already referenced (= conflict)
+			m_state = QET::GIOK;
+			return(false);
 		}
 	}
 
+		//Copie the association id/adress
+	for(auto found_id : priv_id_adr.keys()) {
+		table_id_adr.insert(found_id,
+							priv_id_adr.value(found_id));
+	}
+
 	//load uuid of connected elements
 	QList <QDomElement> uuid_list = QET::findInDomElement(e,
 								  "links_uuids",

sources/qetproject.cpp

@@ -120,8 +120,19 @@ QETProject::QETProject(KAutoSaveFile *backup, QObject *parent) :
 */
 QETProject::~QETProject()
 {
-	for (auto diagram : m_diagrams_list)
+		//Each time a diagram is deleted we also remove it from m_diagram_list
+		//because a lot of thing append during the destructor of a diagram class
+		//and one of these thing (not directly in the destructor of the diagram
+		//but in another destructor called by the diagram destructor)
+		//is to get the diagram list of the project to make some updates @see QList<Diagram *> QETProject::diagrams() const.
+		//So we need to remove the freshly deleted diagram from the list
+		//in each iteration of the loop to avoid  the use of a dangling pointer.
+	const auto diag_list = m_diagrams_list;
+	for (const auto &diagram : diag_list)
+	{
 		delete  diagram;
+		m_diagrams_list.removeOne(diagram);
+	}
 }
 
 /**
@@ -159,7 +170,7 @@ void QETProject::init()
 	writeBackup();
 
 	QSettings settings;
-	int autosave_interval = settings.value("diagrameditor/autosave-interval", 0).toInt();
+	int autosave_interval = settings.value(QStringLiteral("diagrameditor/autosave-interval"), 0).toInt();
 	if(autosave_interval > 0)
 	{
 		int ms = autosave_interval*60*1000;
@@ -1280,13 +1291,13 @@ void QETProject::readProjectXml(QDomDocument &xml_project)
 	m_state = ProjectParsingRunning;
 
 	//The roots of the xml document must be a "project" element
-	if (root_elmt.tagName() == "project")
+	if (root_elmt.tagName() == QLatin1String("project"))
 	{
 		//Normal opening mode
-		if (root_elmt.hasAttribute("version"))
+		if (root_elmt.hasAttribute(QStringLiteral("version")))
 		{
 			bool conv_ok;
-			m_project_qet_version = root_elmt.attribute("version").toDouble(&conv_ok);
+			m_project_qet_version = root_elmt.attribute(QStringLiteral("version")).toDouble(&conv_ok);
 #if TODO_LIST
 #pragma message("@TODO use of version convert")
 #endif
@@ -1312,7 +1323,7 @@ void QETProject::readProjectXml(QDomDocument &xml_project)
 				}
 			}
 		}
-		setTitle(root_elmt.attribute("title"));
+		setTitle(root_elmt.attribute(QStringLiteral("title")));
 	}
 	else
 	{
@@ -1362,7 +1373,7 @@ void QETProject::readDiagramsXml(QDomDocument &xml_project)
 	}
 
 	//Search the diagrams in the project
-	QDomNodeList diagram_nodes = xml_project.elementsByTagName("diagram");
+	QDomNodeList diagram_nodes = xml_project.elementsByTagName(QStringLiteral("diagram"));
 
 	if(dlgWaiting)
 		dlgWaiting->setProgressBarRange(0, diagram_nodes.length()*3);
@@ -1381,7 +1392,7 @@ void QETProject::readDiagramsXml(QDomDocument &xml_project)
 
 			int diagram_order = -1;
 			if (!QET::attributeIsAnInteger(diagram_xml_element,
-							   "order",
+							   QStringLiteral("order"),
 							   &diagram_order))
 				diagram_order = 500000;
 
@@ -1424,7 +1435,7 @@ void QETProject::readDiagramsXml(QDomDocument &xml_project)
 void QETProject::readElementsCollectionXml(QDomDocument &xml_project)
 {
 		//Get the embedded elements collection of the project
-	QDomNodeList collection_roots = xml_project.elementsByTagName("collection");
+	QDomNodeList collection_roots = xml_project.elementsByTagName(QStringLiteral("collection"));
 	QDomElement collection_root;
 
 	if (!collection_roots.isEmpty())
@@ -1449,8 +1460,8 @@ void QETProject::readElementsCollectionXml(QDomDocument &xml_project)
 */
 void QETProject::readProjectPropertiesXml(QDomDocument &xml_project)
 {
-	foreach (QDomElement e, QET::findInDomElement(xml_project.documentElement(), "properties"))
-		m_project_properties.fromXml(e);
+	for (auto dom_elmt : QET::findInDomElement(xml_project.documentElement(), QStringLiteral("properties")))
+		m_project_properties.fromXml(dom_elmt);
 }
 
 /**
@@ -1462,7 +1473,7 @@ void QETProject::readProjectPropertiesXml(QDomDocument &xml_project)
 void QETProject::readDefaultPropertiesXml(QDomDocument &xml_project)
 {
 		// Find xml element where is stored properties for new diagram
-	QDomNodeList newdiagrams_nodes = xml_project.elementsByTagName("newdiagrams");
+	QDomNodeList newdiagrams_nodes = xml_project.elementsByTagName(QStringLiteral("newdiagrams"));
 	if (newdiagrams_nodes.isEmpty()) return;
 
 	QDomElement newdiagrams_elmt = newdiagrams_nodes.at(0).toElement();
@@ -1482,21 +1493,21 @@ void QETProject::readDefaultPropertiesXml(QDomDocument &xml_project)
 		QDomElement child_elmt = child.toElement();
 		if (child_elmt.isNull()) continue;
 
-		if (child_elmt.tagName() == "border")
+		if (child_elmt.tagName() == QLatin1String("border"))
 			border_elmt = child_elmt;
-		else if (child_elmt.tagName() == "inset")
+		else if (child_elmt.tagName() == QLatin1String("inset"))
 			titleblock_elmt = child_elmt;
-		else if (child_elmt.tagName() == "conductors")
+		else if (child_elmt.tagName() == QLatin1String("conductors"))
 			conductors_elmt = child_elmt;
-		else if (child_elmt.tagName() == "report")
+		else if (child_elmt.tagName() == QLatin1String("report"))
 			report_elmt = child_elmt;
-		else if (child_elmt.tagName() == "xrefs")
+		else if (child_elmt.tagName() == QLatin1String("xrefs"))
 			xref_elmt = child_elmt;
-		else if (child_elmt.tagName() == "conductors_autonums")
+		else if (child_elmt.tagName() == QLatin1String("conductors_autonums"))
 			conds_autonums = child_elmt;
-		else if (child_elmt.tagName()== "folio_autonums")
+		else if (child_elmt.tagName()== QLatin1String("folio_autonums"))
 			folio_autonums = child_elmt;
-		else if (child_elmt.tagName()== "element_autonums")
+		else if (child_elmt.tagName()== QLatin1String("element_autonums"))
 			element_autonums = child_elmt;
 	}
 
@@ -1504,21 +1515,21 @@ void QETProject::readDefaultPropertiesXml(QDomDocument &xml_project)
 	if (!border_elmt.isNull())	   default_border_properties_.fromXml(border_elmt);
 	if (!titleblock_elmt.isNull()) default_titleblock_properties_.fromXml(titleblock_elmt);
 	if (!conductors_elmt.isNull()) default_conductor_properties_.fromXml(conductors_elmt);
-	if (!report_elmt.isNull())	   setDefaultReportProperties(report_elmt.attribute("label"));
+	if (!report_elmt.isNull())	   setDefaultReportProperties(report_elmt.attribute(QStringLiteral("label")));
 	if (!xref_elmt.isNull())
 	{
-		foreach(QDomElement elmt, QET::findInDomElement(xref_elmt, "xref"))
+		for (auto elmt : QET::findInDomElement(xref_elmt, QStringLiteral("xref")))
 		{
 			XRefProperties xrp;
 			xrp.fromXml(elmt);
-			m_default_xref_properties.insert(elmt.attribute("type"), xrp);
+			m_default_xref_properties.insert(elmt.attribute(QStringLiteral("type")), xrp);
 		}
 	}
 	if (!conds_autonums.isNull())
 	{
-		m_current_conductor_autonum = conds_autonums.attribute("current_autonum");
-		m_freeze_new_conductors = conds_autonums.attribute("freeze_new_conductors") == "true";
-		foreach (QDomElement elmt, QET::findInDomElement(conds_autonums, "conductor_autonum"))
+		m_current_conductor_autonum = conds_autonums.attribute(QStringLiteral("current_autonum"));
+		m_freeze_new_conductors = conds_autonums.attribute(QStringLiteral("freeze_new_conductors")) == QLatin1String("true");
+		for (auto elmt : QET::findInDomElement(conds_autonums, QStringLiteral("conductor_autonum")))
 		{
 			NumerotationContext nc;
 			nc.fromXml(elmt);
@@ -1527,22 +1538,22 @@ void QETProject::readDefaultPropertiesXml(QDomDocument &xml_project)
 	}
 	if (!folio_autonums.isNull())
 	{
-		foreach (QDomElement elmt, QET::findInDomElement(folio_autonums, "folio_autonum"))
+		for (auto elmt : QET::findInDomElement(folio_autonums, QStringLiteral("folio_autonum")))
 		{
 			NumerotationContext nc;
 			nc.fromXml(elmt);
-			m_folio_autonum.insert(elmt.attribute("title"), nc);
+			m_folio_autonum.insert(elmt.attribute(QStringLiteral("title")), nc);
 		}
 	}
 	if (!element_autonums.isNull())
 	{
-		m_current_element_autonum = element_autonums.attribute("current_autonum");
-		m_freeze_new_elements = element_autonums.attribute("freeze_new_elements") == "true";
-		foreach (QDomElement elmt, QET::findInDomElement(element_autonums, "element_autonum"))
+		m_current_element_autonum = element_autonums.attribute(QStringLiteral("current_autonum"));
+		m_freeze_new_elements = element_autonums.attribute(QStringLiteral("freeze_new_elements")) == QLatin1String("true");
+		for (auto elmt : QET::findInDomElement(element_autonums, QStringLiteral("element_autonum")))
 		{
 			NumerotationContext nc;
 			nc.fromXml(elmt);
-			m_element_autonum.insert(elmt.attribute("title"), nc);
+			m_element_autonum.insert(elmt.attribute(QStringLiteral("title")), nc);
 		}
 	}
 }

sources/ui/aboutqetdialog.cpp

@@ -152,8 +152,7 @@ void AboutQETDialog::setVersion()
 	QString str = "<span style=\"font-weight:bold;font-size:16pt;\">QElectroTech V "
 			+ QET::displayedVersion
 			+ "</span>";
-	Machine_info *my_ma =new Machine_info(this);
-	ui->m_version_label->setText(str + my_ma->compilation_info());
+	ui->m_version_label->setText(str + MachineInfo::instance()->compilation_info());
 }
 
 /**