Port some deprecated methods

renderer/renderjob.cpp

@@ -164,7 +164,7 @@ void RenderJob::start()
     if ((interface != nullptr) && m_usekuiserver) {
         if (!interface->isServiceRegistered(QStringLiteral("org.kde.JobViewServer"))) {
             qWarning() << "No org.kde.JobViewServer registered, trying to start kuiserver";
-            if (QProcess::startDetached(QStringLiteral("kuiserver"))) {
+            if (QProcess::startDetached(QStringLiteral("kuiserver"), QStringList())) {
                 // Give it a couple of seconds to start
                 QElapsedTimer t;
                 t.start();

src/assets/view/widgets/keywordparamwidget.cpp

@@ -56,7 +56,11 @@ KeywordParamWidget::KeywordParamWidget(std::shared_ptr<AssetParameterModel> mode
     connect(lineeditwidget, &QLineEdit::editingFinished, [this]() { 
         emit valueChanged(m_index, lineeditwidget->text(), true);
     });
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(comboboxwidget, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
+#else
+    connect(comboboxwidget, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) ,
+#endif
             [this](int ix) {
             if (ix > 0) {
                 QString comboval = comboboxwidget->itemData(ix).toString();

src/assets/view/widgets/listparamwidget.cpp

@@ -46,7 +46,11 @@ ListParamWidget::ListParamWidget(std::shared_ptr<AssetParameterModel> model, QMo
 
     // emit the signal of the base class when appropriate
     // The connection is ugly because the signal "currentIndexChanged" is overloaded in QComboBox
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(this->m_list, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
+#else
+    connect(this->m_list, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) ,
+#endif
             [this](int) {
                 emit valueChanged(m_index, m_list->itemData(m_list->currentIndex()).toString(), true);
     });

src/audiomixer/mixerwidget.cpp

@@ -323,7 +323,7 @@ void MixerWidget::buildUI(Mlt::Tractor *service, const QString &trackTag)
     });
     QVBoxLayout *lay = new QVBoxLayout;
     setContentsMargins(0, 0, 0, 0);
-    lay->setMargin(0);
+    lay->setContentsMargins(0, 0, 0, 0);
     lay->addWidget(m_trackLabel);
     QHBoxLayout *buttonslay = new QHBoxLayout;
     buttonslay->setSpacing(0);

src/dialogs/encodingprofilesdialog.cpp

@@ -46,7 +46,11 @@ EncodingProfilesDialog::EncodingProfilesDialog(int profileType, QWidget *parent)
 
     m_configFile = new KConfig(QStringLiteral("encodingprofiles.rc"), KConfig::CascadeConfig, QStandardPaths::AppDataLocation);
     profile_type->setCurrentIndex(profileType);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(profile_type, static_cast<void (KComboBox::*)(int)>(&KComboBox::currentIndexChanged), this, &EncodingProfilesDialog::slotLoadProfiles);
+#else
+    connect(profile_type, static_cast<void (KComboBox::*)(int, const QString &)>(&KComboBox::currentIndexChanged) , this, &EncodingProfilesDialog::slotLoadProfiles);
+#endif
     connect(profile_list, &QListWidget::currentRowChanged, this, &EncodingProfilesDialog::slotShowParams);
     connect(button_delete, &QAbstractButton::clicked, this, &EncodingProfilesDialog::slotDeleteProfile);
     connect(button_add, &QAbstractButton::clicked, this, &EncodingProfilesDialog::slotAddProfile);

src/dialogs/kdenlivesettingsdialog.cpp

@@ -155,9 +155,17 @@ KdenliveSettingsDialog::KdenliveSettingsDialog(QMap<QString, QString> mappable_a
             }
         }
     }
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configCapture.kcfg_detectedv4ldevices, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+#else
+    connect(m_configCapture.kcfg_detectedv4ldevices, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this,
+#endif
             &KdenliveSettingsDialog::slotUpdatev4lDevice);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configCapture.kcfg_v4l_format, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+#else
+    connect(m_configCapture.kcfg_v4l_format, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this,
+#endif
             &KdenliveSettingsDialog::slotUpdatev4lCaptureProfile);
     connect(m_configCapture.config_v4l, &QAbstractButton::clicked, this, &KdenliveSettingsDialog::slotEditVideo4LinuxProfile);
 
@@ -247,12 +255,24 @@ KdenliveSettingsDialog::KdenliveSettingsDialog(QMap<QString, QString> mappable_a
 
     loadEncodingProfiles();
 
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configSdl.kcfg_audio_driver, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+#else
+    connect(m_configSdl.kcfg_audio_driver, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this,
+#endif
             &KdenliveSettingsDialog::slotCheckAlsaDriver);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configSdl.kcfg_audio_backend, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+#else
+    connect(m_configSdl.kcfg_audio_backend, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this,
+#endif
             &KdenliveSettingsDialog::slotCheckAudioBackend);
     initDevices();
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configCapture.kcfg_grab_capture_type, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+#else
+    connect(m_configCapture.kcfg_grab_capture_type, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this,
+#endif
             &KdenliveSettingsDialog::slotUpdateGrabRegionStatus);
 
     slotUpdateGrabRegionStatus();
@@ -267,7 +287,11 @@ KdenliveSettingsDialog::KdenliveSettingsDialog(QMap<QString, QString> mappable_a
     m_configCapture.decklink_parameters->setVisible(false);
     m_configCapture.decklink_parameters->setMaximumHeight(QFontMetrics(font()).lineSpacing() * 4);
     m_configCapture.decklink_parameters->setPlainText(KdenliveSettings::decklink_parameters());
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configCapture.kcfg_decklink_profile, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+#else
+    connect(m_configCapture.kcfg_decklink_profile, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this,
+#endif
             &KdenliveSettingsDialog::slotUpdateDecklinkProfile);
     connect(m_configCapture.decklink_showprofileinfo, &QAbstractButton::clicked, m_configCapture.decklink_parameters, &QWidget::setVisible);
 
@@ -281,7 +305,11 @@ KdenliveSettingsDialog::KdenliveSettingsDialog(QMap<QString, QString> mappable_a
     act->setData(2);
     connect(act, &QAction::triggered, this, &KdenliveSettingsDialog::slotManageEncodingProfile);
     m_configCapture.v4l_manageprofile->setDefaultAction(act);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configCapture.kcfg_v4l_profile, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+#else
+    connect(m_configCapture.kcfg_v4l_profile, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this,
+#endif
             &KdenliveSettingsDialog::slotUpdateV4lProfile);
     connect(m_configCapture.v4l_showprofileinfo, &QAbstractButton::clicked, m_configCapture.v4l_parameters, &QWidget::setVisible);
 
@@ -294,7 +322,11 @@ KdenliveSettingsDialog::KdenliveSettingsDialog(QMap<QString, QString> mappable_a
     act->setData(3);
     connect(act, &QAction::triggered, this, &KdenliveSettingsDialog::slotManageEncodingProfile);
     m_configCapture.grab_manageprofile->setDefaultAction(act);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configCapture.kcfg_grab_profile, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+#else
+    connect(m_configCapture.kcfg_grab_profile, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this,
+#endif
             &KdenliveSettingsDialog::slotUpdateGrabProfile);
     connect(m_configCapture.grab_showprofileinfo, &QAbstractButton::clicked, m_configCapture.grab_parameters, &QWidget::setVisible);
 
@@ -305,7 +337,11 @@ KdenliveSettingsDialog::KdenliveSettingsDialog(QMap<QString, QString> mappable_a
 
     int channelsIndex = m_configCapture.audiocapturechannels->findData(KdenliveSettings::audiocapturechannels());
     m_configCapture.audiocapturechannels->setCurrentIndex(qMax(channelsIndex, 0));
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configCapture.audiocapturechannels, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+#else
+    connect(m_configCapture.audiocapturechannels, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this,
+#endif
             &KdenliveSettingsDialog::slotUpdateAudioCaptureChannels);
 
     // audio capture sample rate
@@ -315,7 +351,11 @@ KdenliveSettingsDialog::KdenliveSettingsDialog(QMap<QString, QString> mappable_a
 
     int sampleRateIndex = m_configCapture.audiocapturesamplerate->findData(KdenliveSettings::audiocapturesamplerate());
     m_configCapture.audiocapturesamplerate->setCurrentIndex(qMax(sampleRateIndex, 0));
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configCapture.audiocapturesamplerate, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+#else
+    connect(m_configCapture.audiocapturesamplerate, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this,
+#endif
             &KdenliveSettingsDialog::slotUpdateAudioCaptureSampleRate);
 
     m_configCapture.labelNoAudioDevices->setVisible(false);
@@ -325,7 +365,11 @@ KdenliveSettingsDialog::KdenliveSettingsDialog(QMap<QString, QString> mappable_a
     act->setData(1);
     connect(act, &QAction::triggered, this, &KdenliveSettingsDialog::slotManageEncodingProfile);
     m_configProject.preview_manageprofile->setDefaultAction(act);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configProject.kcfg_preview_profile, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+#else
+    connect(m_configProject.kcfg_preview_profile, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this,
+#endif
             &KdenliveSettingsDialog::slotUpdatePreviewProfile);
     connect(m_configProject.preview_showprofileinfo, &QAbstractButton::clicked, m_configProject.previewparams, &QWidget::setVisible);
     m_configProject.previewparams->setVisible(false);
@@ -353,7 +397,11 @@ KdenliveSettingsDialog::KdenliveSettingsDialog(QMap<QString, QString> mappable_a
     m_configProxy.proxy_manageprofile->setDefaultAction(act);
 
     connect(m_configProxy.proxy_showprofileinfo, &QAbstractButton::clicked, m_configProxy.proxyparams, &QWidget::setVisible);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configProxy.kcfg_proxy_profile, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+#else
+    connect(m_configProxy.kcfg_proxy_profile, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this,
+#endif
             &KdenliveSettingsDialog::slotUpdateProxyProfile);
 
     slotUpdateProxyProfile(-1);
@@ -425,7 +473,11 @@ bool KdenliveSettingsDialog::initAudioRecDevice()
     m_configCapture.labelNoAudioDevices->setVisible(audioDevices.empty());
 
     m_configCapture.kcfg_defaultaudiocapture->addItems(audioDevices);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_configCapture.kcfg_defaultaudiocapture, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), [&]() {
+#else
+    connect(m_configCapture.kcfg_defaultaudiocapture, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , [&]() {
+#endif
         QString currentDevice = m_configCapture.kcfg_defaultaudiocapture->currentText();
         KdenliveSettings::setDefaultaudiocapture(currentDevice);
     });

src/dialogs/renderwidget.cpp

@@ -361,7 +361,11 @@ RenderWidget::RenderWidget(bool enableProxy, QWidget *parent)
         m_view.parallel_process->setEnabled(false);
     }
     m_view.field_order->setEnabled(false);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_view.scanning_list, QOverload<int>::of(&QComboBox::currentIndexChanged), [this](int index) { m_view.field_order->setEnabled(index == 2); });
+#else
+    connect(m_view.scanning_list, QOverload<int, const QString &>::of(&QComboBox::currentIndexChanged), [this](int index) { m_view.field_order->setEnabled(index == 2); });
+#endif
     refreshView();
     focusFirstVisibleItem();
     adjustSize();

src/dialogs/titletemplatedialog.cpp

@@ -63,7 +63,11 @@ TitleTemplateDialog::TitleTemplateDialog(const QString &folder, QWidget *parent)
     }
     const QStringList mimeTypeFilters = {QStringLiteral("application/x-kdenlivetitle")};
     m_view.template_list->setMimeTypeFilters(mimeTypeFilters);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_view.template_list->comboBox(), static_cast<void (KComboBox::*)(int)>(&KComboBox::currentIndexChanged), this,
+#else
+    connect(m_view.template_list->comboBox(), static_cast<void (KComboBox::*)(int, const QString &)>(&KComboBox::currentIndexChanged) , this,
+#endif
             &TitleTemplateDialog::updatePreview);
     updatePreview();
 }

src/dvdwizard/dvdwizardchapters.cpp

@@ -27,7 +27,11 @@ DvdWizardChapters::DvdWizardChapters(MonitorManager *manager, DVDFORMAT format,
 
 {
     m_view.setupUi(this);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_view.vob_list, static_cast<void (KComboBox::*)(int)>(&KComboBox::currentIndexChanged), this, &DvdWizardChapters::slotUpdateChaptersList);
+#else
+    connect(m_view.vob_list, static_cast<void (KComboBox::*)(int, const QString &)>(&KComboBox::currentIndexChanged) , this, &DvdWizardChapters::slotUpdateChaptersList);
+#endif
     connect(m_view.button_add, &QAbstractButton::clicked, this, &DvdWizardChapters::slotAddChapter);
     connect(m_view.button_delete, &QAbstractButton::clicked, this, &DvdWizardChapters::slotRemoveChapter);
     connect(m_view.chapters_list, &QListWidget::itemSelectionChanged, this, &DvdWizardChapters::slotGoToChapter);

src/dvdwizard/dvdwizardmenu.cpp

@@ -238,7 +238,11 @@ DvdWizardMenu::DvdWizardMenu(DVDFORMAT format, QWidget *parent)
     connect(m_view.background_image, &KUrlRequester::textChanged, this, &DvdWizardMenu::buildImage);
     connect(m_view.background_color, &KColorButton::changed, this, &DvdWizardMenu::buildColor);
 
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_view.background_list, static_cast<void (KComboBox::*)(int)>(&KComboBox::currentIndexChanged), this, &DvdWizardMenu::checkBackgroundType);
+#else
+    connect(m_view.background_list, static_cast<void (KComboBox::*)(int, const QString &)>(&KComboBox::currentIndexChanged) , this, &DvdWizardMenu::checkBackgroundType);
+#endif
 
     connect(m_view.target_list, static_cast<void (KComboBox::*)(int)>(&KComboBox::activated), this, &DvdWizardMenu::setButtonTarget);
     connect(m_view.back_to_menu, &QAbstractButton::toggled, this, &DvdWizardMenu::setBackToMenu);

src/mainwindow.cpp

@@ -291,7 +291,11 @@ void MainWindow::init()
         for (int ix = 0; ix < screens; ix++) {
             screenCombo->addItem(i18n("Monitor %1", ix));
         }
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
         connect(screenCombo, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), m_clipMonitor, &Monitor::slotSetScreen);
+#else
+        connect(screenCombo, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , m_clipMonitor, &Monitor::slotSetScreen);
+#endif
         recToolbar->addWidget(screenCombo);
         // Update screen grab monitor choice in case we changed from fullscreen
         screenCombo->setEnabled(KdenliveSettings::grab_capture_type() == 0);

src/mltcontroller/clippropertiescontroller.cpp

@@ -478,7 +478,11 @@ ClipPropertiesController::ClipPropertiesController(ClipController *controller, Q
         auto *combo = new QComboBox(this);
         combo->addItem(i18n("Interlaced"), 0);
         combo->addItem(i18n("Progressive"), 1);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
         connect(combo, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &ClipPropertiesController::slotComboValueChanged);
+#else
+        connect(combo, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this, &ClipPropertiesController::slotComboValueChanged);
+#endif
         combo->setObjectName(QStringLiteral("force_progressive_value"));
         if (!force_prog.isEmpty()) {
             combo->setCurrentIndex(force_prog.toInt());
@@ -500,7 +504,11 @@ ClipPropertiesController::ClipPropertiesController(ClipController *controller, Q
         combo = new QComboBox(this);
         combo->addItem(i18n("Bottom first"), 0);
         combo->addItem(i18n("Top first"), 1);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
         connect(combo, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &ClipPropertiesController::slotComboValueChanged);
+#else
+        connect(combo, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this, &ClipPropertiesController::slotComboValueChanged);
+#endif
         combo->setObjectName(QStringLiteral("force_tff_value"));
         if (!force_tff.isEmpty()) {
             combo->setCurrentIndex(force_tff.toInt());
@@ -583,7 +591,11 @@ ClipPropertiesController::ClipPropertiesController(ClipController *controller, Q
                 emit updateClipProperties(m_id, m_originalProperties, properties);
                 m_originalProperties = properties;
             });
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
             QObject::connect(videoStream, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), [this, videoStream]() {
+#else
+            QObject::connect(videoStream, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , [this, videoStream]() {
+#endif
                 QMap<QString, QString> properties;
                 properties.insert(QStringLiteral("video_index"), QString::number(videoStream->currentData().toInt()));
                 emit updateClipProperties(m_id, m_originalProperties, properties);
@@ -638,7 +650,11 @@ ClipPropertiesController::ClipPropertiesController(ClipController *controller, Q
                 emit updateClipProperties(m_id, m_originalProperties, properties);
                 m_originalProperties = properties;
             });
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
             QObject::connect(audioStream, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), [this, audioStream]() {
+#else
+            QObject::connect(audioStream, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , [this, audioStream]() {
+#endif
                 QMap<QString, QString> properties;
                 properties.insert(QStringLiteral("audio_index"), QString::number(audioStream->currentData().toInt()));
                 emit updateClipProperties(m_id, m_originalProperties, properties);
@@ -693,7 +709,11 @@ ClipPropertiesController::ClipPropertiesController(ClipController *controller, Q
             combo->setEnabled(false);
         }
         connect(box, &QAbstractButton::toggled, combo, &QWidget::setEnabled);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
         connect(combo, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &ClipPropertiesController::slotComboValueChanged);
+#else
+        connect(combo, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this, &ClipPropertiesController::slotComboValueChanged);
+#endif
         hlay->addWidget(box);
         hlay->addWidget(combo);
         vbox->addLayout(hlay);

src/monitor/recmanager.cpp

@@ -73,7 +73,11 @@ RecManager::RecManager(Monitor *parent)
     m_audio_device = new QComboBox(parent);
     QStringList audioDevices = pCore->getAudioCaptureDevices();
     m_audio_device->addItems(audioDevices);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_audio_device, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &RecManager::slotAudioDeviceChanged);
+#else
+    connect(m_audio_device, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this, &RecManager::slotAudioDeviceChanged);
+#endif
     QString selectedDevice = KdenliveSettings::defaultaudiocapture();
     int selectedIndex = m_audio_device->findText(selectedDevice);
     if (!selectedDevice.isNull() && selectedIndex > -1) {
@@ -114,7 +118,11 @@ RecManager::RecManager(Monitor *parent)
     if (selectedIndex > -1) {
         m_device_selector->setCurrentIndex(selectedIndex);
     }
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_device_selector, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &RecManager::slotVideoDeviceChanged);
+#else
+    connect(m_device_selector, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , this, &RecManager::slotVideoDeviceChanged);
+#endif
     m_recToolbar->addWidget(m_device_selector);
 
     QAction *configureRec = m_recToolbar->addAction(QIcon::fromTheme(QStringLiteral("configure")), i18n("Configure Recording"));

src/project/dialogs/profilewidget.cpp

@@ -111,7 +111,11 @@ ProfileWidget::ProfileWidget(QWidget *parent)
         m_filter->setFilterFps(current > 0, current);
         slotFilterChanged();
     };
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_fpsFilt, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), updateFps);
+#else
+    connect(m_fpsFilt, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , updateFps);
+#endif
     int ix = m_fpsFilt->findText(KdenliveSettings::profile_fps_filter());
     if (ix > -1) {
         m_fpsFilt->setCurrentIndex(ix);
@@ -126,7 +130,11 @@ ProfileWidget::ProfileWidget(QWidget *parent)
         m_filter->setFilterInterlaced(current != -1, current == 0);
         slotFilterChanged();
     };
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(m_scanningFilt, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), updateScanning);
+#else
+    connect(m_scanningFilt, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , updateScanning);
+#endif
 
     ix = m_scanningFilt->findText(KdenliveSettings::profile_scanning_filter());
     if (ix > -1) {

src/project/dialogs/projectsettings.cpp

@@ -153,7 +153,11 @@ ProjectSettings::ProjectSettings(KdenliveDoc *doc, QMap<QString, QString> metada
     connect(proxy_manageprofile, &QAbstractButton::clicked, this, &ProjectSettings::slotManageEncodingProfile);
     proxy_profile->setToolTip(i18n("Select default proxy profile"));
 
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(proxy_profile, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &ProjectSettings::slotUpdateProxyParams);
+#else
+    connect(proxy_profile, QOverload<int, const QString &>::of(&QComboBox::currentIndexChanged), this, &ProjectSettings::slotUpdateProxyParams);
+#endif
     proxyparams->setVisible(false);
     proxyparams->setMaximumHeight(QFontMetrics(font()).lineSpacing() * 5);
     connect(proxy_showprofileinfo, &QAbstractButton::clicked, proxyparams, &QWidget::setVisible);
@@ -169,7 +173,11 @@ ProjectSettings::ProjectSettings(KdenliveDoc *doc, QMap<QString, QString> metada
     connect(preview_manageprofile, &QAbstractButton::clicked, this, &ProjectSettings::slotManagePreviewProfile);
     preview_profile->setToolTip(i18n("Select default preview profile"));
 
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(preview_profile, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &ProjectSettings::slotUpdatePreviewParams);
+#else
+    connect(preview_profile, QOverload<int, const QString &>::of(&QComboBox::currentIndexChanged), this, &ProjectSettings::slotUpdatePreviewParams);
+#endif
     previewparams->setVisible(false);
     previewparams->setMaximumHeight(QFontMetrics(font()).lineSpacing() * 5);
     connect(preview_showprofileinfo, &QAbstractButton::clicked, previewparams, &QWidget::setVisible);

src/titler/titlewidget.cpp

@@ -490,7 +490,11 @@ TitleWidget::TitleWidget(const QUrl &url, const Timecode &tc, QString projectTit
     graphicsView->scene()->addItem(m_frameImage);
 
     bgBox->setCurrentIndex(KdenliveSettings::titlerbg());
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     connect(bgBox, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), [&] (int ix) {
+#else
+    connect(bgBox, static_cast<void (QComboBox::*)(int, const QString &)>(&QComboBox::currentIndexChanged) , [&] (int ix) {
+#endif
         KdenliveSettings::setTitlerbg(ix);
         displayBackgroundFrame();
     });
@@ -3118,7 +3122,7 @@ void TitleWidget::updateGuides(int)
     for (int i = 0; i < max; i++) {
         auto *line1 = new QGraphicsLineItem(0, (i + 1) * m_frameHeight / (max + 1), m_frameWidth, (i + 1) * m_frameHeight / (max + 1), m_frameBorder);
         line1->setPen(framepen);
-        line1->setFlags(nullptr);
+        line1->setFlags({});
         line1->setData(-1, -1);
         line1->setVisible(guideVisible);
         m_guides << line1;
@@ -3127,7 +3131,7 @@ void TitleWidget::updateGuides(int)
     for (int i = 0; i < max; i++) {
         auto *line1 = new QGraphicsLineItem((i + 1) * m_frameWidth / (max + 1), 0, (i + 1) * m_frameWidth / (max + 1), m_frameHeight, m_frameBorder);
         line1->setPen(framepen);
-        line1->setFlags(nullptr);
+        line1->setFlags({});
         line1->setData(-1, -1);
         line1->setVisible(guideVisible);
         m_guides << line1;
@@ -3138,14 +3142,14 @@ void TitleWidget::updateGuides(int)
 
     auto *line6 = new QGraphicsLineItem(0, 0, m_frameWidth, m_frameHeight, m_frameBorder);
     line6->setPen(framepen);
-    line6->setFlags(nullptr);
+    line6->setFlags({});
     line6->setData(-1, -1);
     line6->setVisible(guideVisible);
     m_guides << line6;
 
     auto *line7 = new QGraphicsLineItem(m_frameWidth, 0, 0, m_frameHeight, m_frameBorder);
     line7->setPen(framepen);
-    line7->setFlags(nullptr);
+    line7->setFlags({});
     line7->setData(-1, -1);
     line7->setVisible(guideVisible);
     m_guides << line7;