Replace deprecated QSignalMapper class

src/gui/properties/speedwidget.cpp

@@ -32,7 +32,6 @@
 #include <QHBoxLayout>
 #include <QLabel>
 #include <QMenu>
-#include <QSignalMapper>
 #include <QTimer>
 
 #include <libtorrent/session_status.hpp>
@@ -89,18 +88,13 @@ SpeedWidget::SpeedWidget(PropertiesWidget *parent)
     m_graphsMenu->addAction(tr("Tracker Download"));
 
     m_graphsMenuActions = m_graphsMenu->actions();
-    m_graphsSignalMapper = new QSignalMapper(this);
 
     for (int id = SpeedPlotView::UP; id < SpeedPlotView::NB_GRAPHS; ++id) {
         QAction *action = m_graphsMenuActions.at(id);
         action->setCheckable(true);
         action->setChecked(true);
-        connect(action, &QAction::changed, m_graphsSignalMapper
-            , static_cast<void (QSignalMapper::*)()>(&QSignalMapper::map));
-        m_graphsSignalMapper->setMapping(action, id);
+        connect(action, &QAction::changed, this, [this, id]() { onGraphChange(id); });
     }
-    connect(m_graphsSignalMapper, static_cast<void (QSignalMapper::*)(int)>(&QSignalMapper::mapped)
-        , this, &SpeedWidget::onGraphChange);
 
     m_graphsButton = new ComboBoxMenuButton(this, m_graphsMenu);
     m_graphsButton->addItem(tr("Select Graphs"));

src/gui/properties/speedwidget.h

@@ -38,7 +38,6 @@ class QVBoxLayout;
 class QHBoxLayout;
 class QLabel;
 class QMenu;
-class QSignalMapper;
 class PropertiesWidget;
 
 class ComboBoxMenuButton : public QComboBox
@@ -80,7 +79,6 @@ private:
     ComboBoxMenuButton *m_graphsButton;
     QMenu *m_graphsMenu;
     QList<QAction *> m_graphsMenuActions;
-    QSignalMapper *m_graphsSignalMapper;
 };
 
 #endif // SPEEDWIDGET_H

src/gui/search/searchwidget.cpp

@@ -42,7 +42,6 @@
 #include <QProcess>
 #include <QRegularExpression>
 #include <QShortcut>
-#include <QSignalMapper>
 #include <QSortFilterProxyModel>
 #include <QStandardItemModel>
 #include <QTextStream>
@@ -91,7 +90,6 @@ namespace
 SearchWidget::SearchWidget(MainWindow *mainWindow)
     : QWidget(mainWindow)
     , m_ui(new Ui::SearchWidget())
-    , m_tabStatusChangedMapper(new QSignalMapper(this))
     , m_mainWindow(mainWindow)
     , m_isNewQueryString(false)
 {
@@ -131,9 +129,6 @@ SearchWidget::SearchWidget(MainWindow *mainWindow)
     connect(m_ui->tabWidget, &QTabWidget::tabCloseRequested, this, &SearchWidget::closeTab);
     connect(m_ui->tabWidget, &QTabWidget::currentChanged, this, &SearchWidget::tabChanged);
 
-    connect(m_tabStatusChangedMapper, static_cast<void (QSignalMapper::*)(QWidget *)>(&QSignalMapper::mapped)
-            , this, &SearchWidget::tabStatusChanged);
-
     const auto *searchManager = SearchPluginManager::instance();
     const auto onPluginChanged = [this]()
     {
@@ -342,9 +337,7 @@ void SearchWidget::on_searchButton_clicked()
     m_ui->tabWidget->setCurrentWidget(newTab);
 
     connect(newTab, &SearchJobWidget::resultsCountUpdated, this, &SearchWidget::resultsCountUpdated);
-    connect(newTab, &SearchJobWidget::statusChanged
-            , m_tabStatusChangedMapper, static_cast<void (QSignalMapper::*)()>(&QSignalMapper::map));
-    m_tabStatusChangedMapper->setMapping(newTab, newTab);
+    connect(newTab, &SearchJobWidget::statusChanged, this, [this, &newTab]() { tabStatusChanged(newTab); });
 
     m_ui->searchButton->setText(tr("Stop"));
     m_activeSearchTab = newTab;

src/gui/search/searchwidget.h

@@ -34,7 +34,6 @@
 #include <QWidget>
 
 class QShortcut;
-class QSignalMapper;
 class QTabWidget;
 
 class MainWindow;
@@ -81,7 +80,6 @@ private:
     QString selectedPlugin() const;
 
     Ui::SearchWidget *m_ui;
-    QSignalMapper *m_tabStatusChangedMapper;
     QPointer<SearchJobWidget> m_currentSearchTab; // Selected tab
     QPointer<SearchJobWidget> m_activeSearchTab; // Tab with running search
     QList<SearchJobWidget *> m_allTabs; // To store all tabs