Try Clazy fix-its

clazy is a compiler plugin which allows clang to understand Qt
semantics. You get more than 50 Qt related compiler warnings, ranging
from unneeded memory allocations to misusage of API, including fix-its
for automatic refactoring.

https://invent.kde.org/sdk/clazy

sources/SearchAndReplace/searchandreplaceworker.cpp

@@ -128,7 +128,7 @@ void SearchAndReplaceWorker::replaceElement(QList<Element *> list)
 		{
 			DiagramContext old_context;
 			DiagramContext new_context =  old_context = elmt->elementInformations();
-			for (QString key : QETInformation::elementInfoKeys())
+			for (const QString& key : QETInformation::elementInfoKeys())
 			{
 				new_context.addValue(key, applyChange(old_context.value(key).toString(),
 													  m_element_context.value(key).toString()));
@@ -219,7 +219,7 @@ void SearchAndReplaceWorker::replaceConductor(QList<Conductor *> list)
 		{
 			QSet <Conductor *> conductors_list = c->relatedPotentialConductors(true);
 			conductors_list << c;
-			for (Conductor *cc : conductors_list)
+			for (Conductor* cc : std::as_const(conductors_list))
 			{
 				QVariant old_value, new_value;
 				old_value.setValue(cc->properties());
@@ -270,22 +270,26 @@ void SearchAndReplaceWorker::replaceAdvanced(
 		return;
 	}
 
-	for (Diagram *dd : diagrams) {
+	for (Diagram* dd : std::as_const(diagrams))
+	{
 		if (dd->project() != project_) {
 			return;
 		}
 	}
-	for (Element *elmt : elements) {
+	for (Element* elmt : std::as_const(elements))
+	{
 		if (!elmt->diagram() || elmt->diagram()->project() != project_) {
 			return;
 		}
 	}
-	for (IndependentTextItem *text : texts) {
+	for (IndependentTextItem* text : std::as_const(texts))
+	{
 		if (!text->diagram() || text->diagram()->project() != project_) {
 			return;
 		}
 	}
-	for (Conductor *cc : conductors) {
+	for (Conductor* cc : std::as_const(conductors))
+	{
 		if (!cc->diagram() || cc->diagram()->project() != project_) {
 			return;
 		}
@@ -300,7 +304,7 @@ void SearchAndReplaceWorker::replaceAdvanced(
 	project_->undoStack()->beginMacro(QObject::tr("Rechercher / remplacer avancé"));
 	if (who == 0)
 	{
-		for (Diagram *diagram : diagrams)
+		for (Diagram* diagram : std::as_const(diagrams))
 		{
 			TitleBlockProperties old_properties = diagram->border_and_titleblock.exportTitleBlock();
 			TitleBlockProperties new_properties = replaceAdvanced(diagram);
@@ -311,7 +315,7 @@ void SearchAndReplaceWorker::replaceAdvanced(
 	}
 	else if (who == 1)
 	{
-		for (Element *element : elements)
+		for (Element* element : std::as_const(elements))
 		{
 			DiagramContext old_context = element->elementInformations();
 			DiagramContext new_context = replaceAdvanced(element);
@@ -322,7 +326,7 @@ void SearchAndReplaceWorker::replaceAdvanced(
 	}
 	else if (who == 2)
 	{
-		for (Conductor *conductor : conductors)
+		for (Conductor* conductor : std::as_const(conductors))
 		{
 			ConductorProperties old_properties = conductor->properties();
 			ConductorProperties new_properties = replaceAdvanced(conductor);
@@ -331,7 +335,7 @@ void SearchAndReplaceWorker::replaceAdvanced(
 				QSet <Conductor *> potential_conductors = conductor->relatedPotentialConductors(true);
 				potential_conductors << conductor;
 
-				for (Conductor *c : potential_conductors)
+				for (Conductor* c : std::as_const(potential_conductors))
 				{
 					QVariant old_value, new_value;
 					old_value.setValue(c->properties());
@@ -343,7 +347,7 @@ void SearchAndReplaceWorker::replaceAdvanced(
 	}
 	else if (who == 3)
 	{
-		for (IndependentTextItem *text : texts)
+		for (IndependentTextItem* text : std::as_const(texts))
 		{
 			QRegularExpression rx(m_advanced_struct.search);
 			if (!rx.isValid())

sources/SearchAndReplace/ui/replaceadvanceddialog.cpp

@@ -95,17 +95,20 @@ void replaceAdvancedDialog::fillWhatComboBox(int index)
 	
 	if (index == 0)
 	{
-		for (QString str : QETInformation::diagramInfoKeys()) {
+		for (const QString& str : QETInformation::diagramInfoKeys())
+		{
 			ui->m_what_cb->addItem(QETInformation::translatedInfoKey(str), str);
 		}
 	}
 	else if (index == 1) {
-		for (QString str : QETInformation::elementInfoKeys()) {
+		for (const QString& str : QETInformation::elementInfoKeys())
+		{
 			ui->m_what_cb->addItem(QETInformation::translatedInfoKey(str), str);
 		}
 	}
 	else if (index == 2) {
-		for (auto str : QETInformation::conductorInfoKeys()) {
+		for (const auto& str : QETInformation::conductorInfoKeys())
+		{
 			ui->m_what_cb->addItem(QETInformation::translatedInfoKey(str), str);
 		}
 	}

sources/SearchAndReplace/ui/replaceelementdialog.cpp

@@ -48,8 +48,9 @@ ReplaceElementDialog::~ReplaceElementDialog()
 void ReplaceElementDialog::setContext(DiagramContext context)
 {
 	m_context = context;
-	
-	for (ElementInfoPartWidget *eipw : m_eipw_list) {
+
+	for (ElementInfoPartWidget* eipw : std::as_const(m_eipw_list))
+	{
 		eipw->setText(m_context[eipw->key()].toString());
 	}
 }
@@ -73,8 +74,8 @@ void ReplaceElementDialog::buildWidget()
 	connect(ui->m_button_box, &QDialogButtonBox::clicked, [this](QAbstractButton *button_) {
 		this->done(ui->m_button_box->buttonRole(button_));
 	});
-	
-	for (QString str : QETInformation::elementInfoKeys())
+
+	for (const QString& str : QETInformation::elementInfoKeys())
 	{
 		ElementInfoPartWidget *eipw = new ElementInfoPartWidget(str, QETInformation::translatedInfoKey(str), this);
 		eipw->setEraseTextVisible(true);

sources/SearchAndReplace/ui/searchandreplacewidget.cpp

@@ -127,7 +127,7 @@ void SearchAndReplaceWidget::clear()
 	qDeleteAll(m_conductor_hash.keys());
 	m_conductor_hash.clear();
 
-	for (QTreeWidgetItem *qtwi : m_category_qtwi)
+	for (QTreeWidgetItem* qtwi : std::as_const(m_category_qtwi))
 		qtwi->setHidden(false);
 
 	ui->m_tree_widget->collapseAll();
@@ -284,18 +284,17 @@ void SearchAndReplaceWidget::fillItemsList()
 		dc += DiagramContent(diagram, false);
 	}
 
-	for (Element *elmt : dc.m_elements)
-		addElement(elmt);
+	for (Element* elmt : std::as_const(dc.m_elements)) addElement(elmt);
 
 	//Sort child of each "element type" tree item.
 	//we hide, "element type" tree item, if they do not have children
-	for(QTreeWidgetItem *qtwi : m_qtwi_elmts)
+	for (QTreeWidgetItem* qtwi : std::as_const(m_qtwi_elmts))
 	{
 		qtwi->sortChildren(0, Qt::AscendingOrder);
 		qtwi->setHidden(qtwi->childCount() ? false : true);
 	}
 
-	for (IndependentTextItem *iti : dc.m_text_fields)
+	for (IndependentTextItem* iti : std::as_const(dc.m_text_fields))
 	{
 		QTreeWidgetItem *qtwi = new QTreeWidgetItem(m_indi_text_qtwi);
 		qtwi->setText(0, iti->toPlainText());
@@ -306,7 +305,7 @@ void SearchAndReplaceWidget::fillItemsList()
 
 	m_indi_text_qtwi->sortChildren(0, Qt::AscendingOrder);
 
-	for (Conductor *c : dc.m_potential_conductors)
+	for (Conductor* c : std::as_const(dc.m_potential_conductors))
 	{
 		QTreeWidgetItem *qtwi = new QTreeWidgetItem(m_conductor_qtwi);
 		qtwi->setText(0, c->properties().text);
@@ -379,7 +378,8 @@ void SearchAndReplaceWidget::search()
 			(*it)->setHidden(false);
 		}
 
-		for (QTreeWidgetItem *item : m_category_qtwi) {
+		for (QTreeWidgetItem* item : std::as_const(m_category_qtwi))
+		{
 			item->setExpanded(false);
 		}
 		m_root_qtwi->setExpanded(true);
@@ -442,9 +442,9 @@ void SearchAndReplaceWidget::search()
 		}
 
 		QPalette background = ui->m_search_le->palette();
-		background.setColor(QPalette::Base, match
-				    ? QColor("#E0FFF0")
-				    : QColor("#FFE0EF"));
+		background.setColor(
+			QPalette::Base,
+			match ? QColor(0xE0FFF0) : QColor(0xFFE0EF));
 		ui->m_search_le->setPalette(background);
 
 			//Go to the first occurrence
@@ -488,7 +488,8 @@ void SearchAndReplaceWidget::setUpConenctions()
 	connect(m_select_elements, &QAction::triggered, [this]()
 	{
 		DiagramContent dc(m_diagram_hash.value(ui->m_tree_widget->currentItem()), false);
-		for (auto elmt : dc.m_elements) {
+		for (auto elmt : std::as_const(dc.m_elements))
+		{
 			if (auto item = m_element_hash.key(elmt)) {
 				item->setCheckState(0, Qt::Checked);
 			}
@@ -508,7 +509,8 @@ void SearchAndReplaceWidget::setUpConenctions()
 	connect(m_select_texts, &QAction::triggered, [this]()
 	{
 		DiagramContent dc(m_diagram_hash.value(ui->m_tree_widget->currentItem()), false);
-		for (auto text : dc.m_text_fields) {
+		for (auto text : std::as_const(dc.m_text_fields))
+		{
 			if (auto item = m_text_hash.key(text)) {
 				item->setCheckState(0, Qt::Checked);
 			}
@@ -858,7 +860,8 @@ QStringList SearchAndReplaceWidget::searchTerms(Diagram *diagram)
 	list.append(prop.indexrev);
 	list.append(prop.folio);
 	list.append(prop.date.toString());
-	for (QString key : prop.context.keys()) {
+	for (const QString& key : prop.context.keys())
+	{
 		list.append(prop.context.value(key).toString());
 	}
 
@@ -874,7 +877,7 @@ QStringList SearchAndReplaceWidget::searchTerms(Element *element)
 {
 	QStringList list;
 	DiagramContext context = element->elementInformations();
-	for (QString key : QETInformation::elementInfoKeys())
+	for (const QString& key : QETInformation::elementInfoKeys())
 	{
 		QString str = context.value(key).toString();
 		if (!str.isEmpty()) {