functor-based Qt signal-slot syntax wizard

apps/wizard/componentselectionpage.cpp

@@ -18,8 +18,8 @@ Wizard::ComponentSelectionPage::ComponentSelectionPage(QWidget *parent) :
 
     registerField(QLatin1String("installation.components"), componentsList);
 
-    connect(componentsList, SIGNAL(itemChanged(QListWidgetItem *)),
-            this, SLOT(updateButton(QListWidgetItem *)));
+    connect(componentsList, &ComponentListWidget::itemChanged,
+            this, &ComponentSelectionPage::updateButton);
 
 }
 

apps/wizard/existinginstallationpage.cpp

@@ -39,11 +39,11 @@ void Wizard::ExistingInstallationPage::initializePage()
         }
     }
 
-    connect(installationsList, SIGNAL(currentTextChanged(QString)),
-            this, SLOT(textChanged(QString)));
+    connect(installationsList, &QListWidget::currentTextChanged,
+            this, &ExistingInstallationPage::textChanged);
 
-    connect(installationsList,SIGNAL(itemSelectionChanged()),
-            this, SIGNAL(completeChanged()));
+    connect(installationsList, &QListWidget::itemSelectionChanged,
+            this, &ExistingInstallationPage::completeChanged);
 }
 
 bool Wizard::ExistingInstallationPage::validatePage()

apps/wizard/installationpage.cpp

@@ -21,36 +21,35 @@ Wizard::InstallationPage::InstallationPage(QWidget *parent, Config::GameSettings
     mUnshield = std::make_unique<UnshieldWorker>(mGameSettings.value("morrowind-bsa-filesize").toLongLong());
     mUnshield->moveToThread(mThread.get());
 
-    connect(mThread.get(), SIGNAL(started()),
-            mUnshield.get(), SLOT(extract()));
+    connect(mThread.get(), &QThread::started,
+            mUnshield.get(), &UnshieldWorker::extract);
 
-    connect(mUnshield.get(), SIGNAL(finished()),
-            mThread.get(), SLOT(quit()));
+    connect(mUnshield.get(), &UnshieldWorker::finished,
+            mThread.get(), &QThread::quit);
 
-    connect(mUnshield.get(), SIGNAL(finished()),
-            this, SLOT(installationFinished()), Qt::QueuedConnection);
+    connect(mUnshield.get(), &UnshieldWorker::finished,
+            this, &InstallationPage::installationFinished, Qt::QueuedConnection);
 
-    connect(mUnshield.get(), SIGNAL(error(QString, QString)),
-            this, SLOT(installationError(QString, QString)), Qt::QueuedConnection);
+    connect(mUnshield.get(), &UnshieldWorker::error,
+            this, &InstallationPage::installationError, Qt::QueuedConnection);
 
-    connect(mUnshield.get(), SIGNAL(textChanged(QString)),
-            installProgressLabel, SLOT(setText(QString)), Qt::QueuedConnection);
+    connect(mUnshield.get(), &UnshieldWorker::textChanged,
+            installProgressLabel, &QLabel::setText, Qt::QueuedConnection);
 
-    connect(mUnshield.get(), SIGNAL(textChanged(QString)),
-            logTextEdit, SLOT(appendPlainText(QString)),  Qt::QueuedConnection);
+    connect(mUnshield.get(), &UnshieldWorker::textChanged,
+            logTextEdit, &QPlainTextEdit::appendPlainText,  Qt::QueuedConnection);
 
-    connect(mUnshield.get(), SIGNAL(textChanged(QString)),
-            mWizard, SLOT(addLogText(QString)),  Qt::QueuedConnection);
+    connect(mUnshield.get(), &UnshieldWorker::textChanged,
+            mWizard, &MainWizard::addLogText,  Qt::QueuedConnection);
 
-    connect(mUnshield.get(), SIGNAL(progressChanged(int)),
-            installProgressBar, SLOT(setValue(int)),  Qt::QueuedConnection);
+    connect(mUnshield.get(), &UnshieldWorker::progressChanged,
+            installProgressBar, &QProgressBar::setValue,  Qt::QueuedConnection);
 
-    connect(mUnshield.get(), SIGNAL(requestFileDialog(Wizard::Component)),
-            this, SLOT(showFileDialog(Wizard::Component)), Qt::QueuedConnection);
+    connect(mUnshield.get(), &UnshieldWorker::requestFileDialog,
+            this, &InstallationPage::showFileDialog, Qt::QueuedConnection);
 
-    connect(mUnshield.get(), SIGNAL(requestOldVersionDialog()),
-            this, SLOT(showOldVersionDialog())
-            , Qt::QueuedConnection);
+    connect(mUnshield.get(), &UnshieldWorker::requestOldVersionDialog,
+                this, &InstallationPage::showOldVersionDialog, Qt::QueuedConnection);
 }
 
 Wizard::InstallationPage::~InstallationPage()

apps/wizard/mainwizard.cpp

@@ -44,11 +44,11 @@ Wizard::MainWizard::MainWizard(QWidget *parent) :
 
     mImporterInvoker = new ProcessInvoker();
 
-    connect(mImporterInvoker->getProcess(), SIGNAL(started()),
-            this, SLOT(importerStarted()));
+    connect(mImporterInvoker->getProcess(), &QProcess::started,
+            this, &MainWizard::importerStarted);
 
-    connect(mImporterInvoker->getProcess(), SIGNAL(finished(int,QProcess::ExitStatus)),
-            this, SLOT(importerFinished(int,QProcess::ExitStatus)));
+    connect(mImporterInvoker->getProcess(), qOverload<int, QProcess::ExitStatus>(&QProcess::finished),
+            this, &MainWizard::importerFinished);
 
     mLogError = tr("<html><head/><body><p><b>Could not open %1 for writing</b></p> \
                    <p>Please make sure you have the right permissions \

apps/wizard/methodselectionpage.cpp

@@ -19,7 +19,7 @@ Wizard::MethodSelectionPage::MethodSelectionPage(QWidget *parent) :
     
     registerField(QLatin1String("installation.retailDisc"), retailDiscRadioButton);
     
-    connect(buyLinkButton, SIGNAL(released()), this, SLOT(handleBuyButton()));
+    connect(buyLinkButton, &QCommandLinkButton::released, this, &MethodSelectionPage::handleBuyButton);
 }
 
 int Wizard::MethodSelectionPage::nextId() const

apps/wizard/utils/componentlistwidget.cpp

@@ -7,11 +7,11 @@ ComponentListWidget::ComponentListWidget(QWidget *parent) :
 {
     mCheckedItems = QStringList();
 
-    connect(this, SIGNAL(itemChanged(QListWidgetItem *)),
-            this, SLOT(updateCheckedItems(QListWidgetItem *)));
+    connect(this, &ComponentListWidget::itemChanged,
+            this, qOverload<QListWidgetItem*>(&ComponentListWidget::updateCheckedItems));
 
-    connect(model(), SIGNAL(rowsInserted(QModelIndex, int, int)),
-            this, SLOT(updateCheckedItems(QModelIndex, int, int)));
+    connect(model(), &QAbstractItemModel::rowsInserted,
+            this,  qOverload<const QModelIndex &, int, int>(&ComponentListWidget::updateCheckedItems));
 }
 
 QStringList ComponentListWidget::checkedItems()