Some clang-tidy -use-modernize-nullptr

Change-Id: I1bed5e85a5b7948d08502a72a10f80baa075c204
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/designer/editordata.h

@@ -36,7 +36,7 @@ namespace Internal {
 class EditorData
 {
 public:
-    explicit operator bool() const { return formWindowEditor != 0; }
+    explicit operator bool() const { return formWindowEditor != nullptr; }
 
     FormWindowEditor *formWindowEditor = nullptr;
     SharedTools::WidgetHost *widgetHost = nullptr;

src/plugins/designer/formeditorstack.cpp

@@ -65,7 +65,7 @@ FormEditorStack::~FormEditorStack()
 
 void FormEditorStack::add(const EditorData &data)
 {
-    if (m_designerCore == 0) { // Initialize first time here
+    if (m_designerCore == nullptr) { // Initialize first time here
         m_designerCore = data.widgetHost->formWindow()->core();
         connect(m_designerCore->formWindowManager(), &QDesignerFormWindowManagerInterface::activeFormWindowChanged,
                 this, &FormEditorStack::updateFormWindowSelectionHandles);
@@ -128,7 +128,7 @@ EditorData FormEditorStack::activeEditor() const
 SharedTools::WidgetHost *FormEditorStack::formWindowEditorForFormWindow(const QDesignerFormWindowInterface *fw) const
 {
     const int i = indexOfFormWindow(fw);
-    return i != -1 ? m_formEditors[i].widgetHost : static_cast<SharedTools::WidgetHost *>(0);
+    return i != -1 ? m_formEditors[i].widgetHost : static_cast<SharedTools::WidgetHost *>(nullptr);
 }
 
 void FormEditorStack::removeFormWindowEditor(QObject *xmlEditor)
@@ -183,7 +183,7 @@ void FormEditorStack::formSizeChanged(int w, int h)
 SharedTools::WidgetHost *FormEditorStack::formWindowEditorForXmlEditor(const Core::IEditor *xmlEditor) const
 {
     const int i = indexOfFormEditor(xmlEditor);
-    return i != -1 ? m_formEditors.at(i).widgetHost : static_cast<SharedTools::WidgetHost *>(0);
+    return i != -1 ? m_formEditors.at(i).widgetHost : static_cast<SharedTools::WidgetHost *>(nullptr);
 }
 
 void FormEditorStack::modeAboutToChange(Core::Id mode)

src/plugins/designer/formeditorw.cpp

@@ -229,7 +229,7 @@ static FormEditorData *d = nullptr;
 static FormEditorW *m_instance = nullptr;
 
 FormEditorData::FormEditorData() :
-    m_formeditor(QDesignerComponents::createFormEditor(0)),
+    m_formeditor(QDesignerComponents::createFormEditor(nullptr)),
     m_initStage(FormEditorW::RegisterPlugins)
 {
     if (Designer::Constants::Internal::debug)
@@ -238,7 +238,7 @@ FormEditorData::FormEditorData() :
     d = this;
 
     std::fill(m_designerSubWindows, m_designerSubWindows + DesignerSubWindowCount,
-              static_cast<QWidget *>(0));
+              static_cast<QWidget *>(nullptr));
 
     m_formeditor->setTopLevel(ICore::mainWindow());
     m_formeditor->setSettingsManager(new SettingsManager());
@@ -352,7 +352,7 @@ void FormEditorData::setupViewActions()
 void FormEditorData::fullInit()
 {
     QTC_ASSERT(m_initStage == FormEditorW::RegisterPlugins, return);
-    QElapsedTimer *initTime = 0;
+    QElapsedTimer *initTime = nullptr;
     if (Designer::Constants::Internal::debug) {
         initTime = new QElapsedTimer;
         initTime->start();
@@ -437,32 +437,32 @@ void FormEditorData::fullInit()
 
 void FormEditorData::initDesignerSubWindows()
 {
-    std::fill(m_designerSubWindows, m_designerSubWindows + DesignerSubWindowCount, static_cast<QWidget*>(0));
+    std::fill(m_designerSubWindows, m_designerSubWindows + DesignerSubWindowCount, static_cast<QWidget*>(nullptr));
 
-    QDesignerWidgetBoxInterface *wb = QDesignerComponents::createWidgetBox(m_formeditor, 0);
+    QDesignerWidgetBoxInterface *wb = QDesignerComponents::createWidgetBox(m_formeditor, nullptr);
     wb->setWindowTitle(tr("Widget Box"));
     wb->setObjectName("WidgetBox");
     m_formeditor->setWidgetBox(wb);
     m_designerSubWindows[WidgetBoxSubWindow] = wb;
 
-    QDesignerObjectInspectorInterface *oi = QDesignerComponents::createObjectInspector(m_formeditor, 0);
+    QDesignerObjectInspectorInterface *oi = QDesignerComponents::createObjectInspector(m_formeditor, nullptr);
     oi->setWindowTitle(tr("Object Inspector"));
     oi->setObjectName("ObjectInspector");
     m_formeditor->setObjectInspector(oi);
     m_designerSubWindows[ObjectInspectorSubWindow] = oi;
 
-    QDesignerPropertyEditorInterface *pe = QDesignerComponents::createPropertyEditor(m_formeditor, 0);
+    QDesignerPropertyEditorInterface *pe = QDesignerComponents::createPropertyEditor(m_formeditor, nullptr);
     pe->setWindowTitle(tr("Property Editor"));
     pe->setObjectName("PropertyEditor");
     m_formeditor->setPropertyEditor(pe);
     m_designerSubWindows[PropertyEditorSubWindow] = pe;
 
-    QWidget *se = QDesignerComponents::createSignalSlotEditor(m_formeditor, 0);
+    QWidget *se = QDesignerComponents::createSignalSlotEditor(m_formeditor, nullptr);
     se->setWindowTitle(tr("Signals && Slots Editor"));
     se->setObjectName("SignalsAndSlotsEditor");
     m_designerSubWindows[SignalSlotEditorSubWindow] = se;
 
-    QDesignerActionEditorInterface *ae = QDesignerComponents::createActionEditor(m_formeditor, 0);
+    QDesignerActionEditorInterface *ae = QDesignerComponents::createActionEditor(m_formeditor, nullptr);
     ae->setWindowTitle(tr("Action Editor"));
     ae->setObjectName("ActionEditor");
     m_formeditor->setActionEditor(ae);
@@ -641,7 +641,7 @@ void FormEditorData::setupActions()
     QObject::connect(m_fwm, &QDesignerFormWindowManagerInterface::activeFormWindowChanged,
         [this] (QDesignerFormWindowInterface *afw) {
             m_fwm->closeAllPreviews();
-            setPreviewMenuEnabled(afw != 0);
+            setPreviewMenuEnabled(afw != nullptr);
         });
 }
 
@@ -770,11 +770,11 @@ IEditor *FormEditorData::createEditor()
         qDebug() << "FormEditorW::createEditor";
     // Create and associate form and text editor.
     m_fwm->closeAllPreviews();
-    QDesignerFormWindowInterface *form = m_fwm->createFormWindow(0);
-    QTC_ASSERT(form, return 0);
+    QDesignerFormWindowInterface *form = m_fwm->createFormWindow(nullptr);
+    QTC_ASSERT(form, return nullptr);
     QObject::connect(form, &QDesignerFormWindowInterface::toolChanged, [this] (int i) { toolChanged(i); });
 
-    SharedTools::WidgetHost *widgetHost = new SharedTools::WidgetHost( /* parent */ 0, form);
+    SharedTools::WidgetHost *widgetHost = new SharedTools::WidgetHost( /* parent */ nullptr, form);
     FormWindowEditor *formWindowEditor = m_xmlEditorFactory->create(form);
 
     m_editorWidget->add(widgetHost, formWindowEditor);
@@ -806,7 +806,7 @@ SharedTools::WidgetHost *FormEditorW::activeWidgetHost()
     ensureInitStage(FullyInitialized);
     if (d->m_editorWidget)
         return d->m_editorWidget->activeEditor().widgetHost;
-    return 0;
+    return nullptr;
 }
 
 FormWindowEditor *FormEditorW::activeEditor()
@@ -814,7 +814,7 @@ FormWindowEditor *FormEditorW::activeEditor()
     ensureInitStage(FullyInitialized);
     if (d->m_editorWidget)
         return d->m_editorWidget->activeEditor().formWindowEditor;
-    return 0;
+    return nullptr;
 }
 
 void FormEditorData::updateShortcut(Command *command)

src/plugins/designer/formtemplatewizardpage.cpp

@@ -58,7 +58,7 @@ Utils::WizardPage *FormPageFactory::create(ProjectExplorer::JsonWizard *wizard,
     Q_UNUSED(wizard)
     Q_UNUSED(data)
 
-    QTC_ASSERT(canCreate(typeId), return 0);
+    QTC_ASSERT(canCreate(typeId), return nullptr);
 
     FormTemplateWizardPage *page = new FormTemplateWizardPage;
     return page;

src/plugins/designer/formwindoweditor.cpp

@@ -50,7 +50,7 @@ FormWindowEditor::~FormWindowEditor()
 
 QWidget *FormWindowEditor::toolBar()
 {
-    return 0;
+    return nullptr;
 }
 
 QString FormWindowEditor::contents() const

src/plugins/designer/formwindowfile.cpp

@@ -286,7 +286,7 @@ void FormWindowFile::slotFormWindowRemoved(QDesignerFormWindowInterface *w)
     // as calls to isDirty() are triggered at arbitrary times
     // while building.
     if (w == m_formWindow)
-        m_formWindow = 0;
+        m_formWindow = nullptr;
 }
 
 } // namespace Internal

src/plugins/designer/qtcreatorintegration.cpp

@@ -114,7 +114,7 @@ QWidget *QtCreatorIntegration::containerWindow(QWidget * /*widget*/) const
 {
     if (SharedTools::WidgetHost *host = FormEditorW::activeWidgetHost())
         return host->integrationContainer();
-    return 0;
+    return nullptr;
 }
 
 static QList<Document::Ptr> findDocumentsIncluding(const Snapshot &docTable,
@@ -212,7 +212,7 @@ static const Class *findClass(const Namespace *parentNameSpace, const LookupCont
             } // member is namespave
         } // member is no class
     } // for members
-    return 0;
+    return nullptr;
 }
 
 static Function *findDeclaration(const Class *cl, const QString &functionName)
@@ -242,7 +242,7 @@ static Function *findDeclaration(const Class *cl, const QString &functionName)
                     return fun;
             }
     }
-    return 0;
+    return nullptr;
 }
 
 // TODO: remove me, this is taken from cppeditor.cpp. Find some common place for this function
@@ -555,7 +555,7 @@ bool QtCreatorIntegration::navigateToSlot(const QString &objectName,
     // Find the class definition (ui class defined as member or base class)
     // in the file itself or in the directly included files (order 1).
     QString namespaceName;
-    const Class *cl = 0;
+    const Class *cl = nullptr;
     Document::Ptr doc;
 
     for (const Document::Ptr &d : qAsConst(docMap)) {

src/plugins/designer/settingspage.cpp

@@ -48,7 +48,7 @@ QWidget *SettingsPage::widget()
 {
     m_initialized = true;
     if (!m_widget)
-        m_widget = m_designerPage->createPage(0);
+        m_widget = m_designerPage->createPage(nullptr);
     return m_widget;
 
 }