Use qOverload in Qt signal/slots.

CMakeLists.txt

@@ -30,6 +30,9 @@ set(VERSION_RELEASE "1")
 set(VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_RELEASE})
 add_definitions(-D'VERSION="${VERSION}"') #"
 
+set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
 find_package(ECM 1.0.0 REQUIRED NO_MODULE)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${CMAKE_MODULE_PATH})
 include(ECMInstallIcons)

src/config/configureoptionsdialog.cpp

@@ -37,6 +37,7 @@
 #include <KLocalizedString>
 #include <KMessageBox>
 
+#include <QtGlobal>
 #include <QIcon>
 
 #include <config.h>
@@ -55,7 +56,7 @@ ConfigureOptionsDialog::ConfigureOptionsDialog(QWidget* parent, const OperationS
     item = addPage(&generalPageWidget(), xi18nc("@title:tab general application settings", "General"), QString(), i18n("General Settings"));
     item->setIcon(QIcon::fromTheme(QStringLiteral("partitionmanager")).pixmap(IconSize(KIconLoader::Desktop)));
 
-    connect(&generalPageWidget().comboDefaultFileSystem(), static_cast<void(QComboBox::*)(int)>(&QComboBox::activated), this, &ConfigureOptionsDialog::onComboDefaultFileSystemActivated);
+    connect(&generalPageWidget().comboDefaultFileSystem(), qOverload<int>(&QComboBox::activated), this, &ConfigureOptionsDialog::onComboDefaultFileSystemActivated);
     connect(generalPageWidget().radioButton, &QRadioButton::toggled, this, &ConfigureOptionsDialog::onShredSourceActivated);
 
     item = addPage(&fileSystemColorsPageWidget(), xi18nc("@title:tab", "File System Colors"), QString(), i18n("File System Color Settings"));
@@ -65,7 +66,7 @@ ConfigureOptionsDialog::ConfigureOptionsDialog(QWidget* parent, const OperationS
         item = addPage(&advancedPageWidget(), xi18nc("@title:tab advanced application settings", "Advanced"), QString(), i18n("Advanced Settings"));
         item->setIcon(QIcon::fromTheme(QStringLiteral("configure")).pixmap(IconSize(KIconLoader::Desktop)));
 
-        connect(&advancedPageWidget().comboBackend(), static_cast<void(QComboBox::*)(int)>(&QComboBox::activated), this, &ConfigureOptionsDialog::onComboDefaultFileSystemActivated);
+        connect(&advancedPageWidget().comboBackend(), qOverload<int>(&QComboBox::activated), this, &ConfigureOptionsDialog::onComboDefaultFileSystemActivated);
     } else
         advancedPageWidget().setVisible(false);
 

src/gui/createvolumegroupdialog.cpp

@@ -26,6 +26,8 @@
 #include <util/capacity.h>
 #include <util/helpers.h>
 
+#include <QtGlobal>
+
 #include <KConfigGroup>
 #include <KLocalizedString>
 #include <KSharedConfig>
@@ -58,7 +60,7 @@ void CreateVolumeGroupDialog::setupDialog()
 void CreateVolumeGroupDialog::setupConnections()
 {
     connect(&dialogWidget().vgName(), &QLineEdit::textChanged, this, &CreateVolumeGroupDialog::onVGNameChanged);
-    connect(&dialogWidget().spinPESize(), static_cast<void(QSpinBox::*)(int)>(&QSpinBox::valueChanged), this, &CreateVolumeGroupDialog::onSpinPESizeChanged);
+    connect(&dialogWidget().spinPESize(), qOverload<int>(&QSpinBox::valueChanged), this, &CreateVolumeGroupDialog::onSpinPESizeChanged);
 }
 
 void  CreateVolumeGroupDialog::accept()

src/gui/mainwindow.cpp

@@ -65,6 +65,7 @@
 #include <QDateTime>
 #include <QFile>
 #include <QFileDialog>
+#include <QtGlobal>
 #include <QMenu>
 #include <QPointer>
 #include <QPushButton>
@@ -453,7 +454,7 @@ void MainWindow::setupActions()
 
 void MainWindow::setupConnections()
 {
-    connect(&listDevices(), &ListDevices::selectionChanged, &pmWidget(), static_cast<void(PartitionManagerWidget::*)(const QString&)>(&PartitionManagerWidget::setSelectedDevice));
+    connect(&listDevices(), &ListDevices::selectionChanged, &pmWidget(), qOverload<const QString&>(&PartitionManagerWidget::setSelectedDevice));
     connect(&listDevices(), &ListDevices::deviceDoubleClicked, this, &MainWindow::onPropertiesDevice);
 }
 

src/gui/newdialog.cpp

@@ -32,8 +32,8 @@
 #include <util/helpers.h>
 #include "util/guihelpers.h"
 
+#include <QtGlobal>
 #include <QFontDatabase>
-#include <QtAlgorithms>
 
 #include <KColorScheme>
 #include <KConfigGroup>
@@ -137,7 +137,7 @@ void NewDialog::setupConnections()
     connect(&dialogWidget().radioExtended(), &QRadioButton::toggled, this, &NewDialog::onRoleChanged);
     connect(&dialogWidget().radioLogical(), &QRadioButton::toggled, this, &NewDialog::onRoleChanged);
     connect(&dialogWidget().checkBoxEncrypt(), &QCheckBox::toggled, this, &NewDialog::onRoleChanged);
-    connect(&dialogWidget().comboFileSystem(), static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &NewDialog::onFilesystemChanged);
+    connect(&dialogWidget().comboFileSystem(), qOverload<int>(&QComboBox::currentIndexChanged), this, &NewDialog::onFilesystemChanged);
     connect(&dialogWidget().label(), &QLineEdit::textChanged, this, &NewDialog::onLabelChanged);
     // listen to password status updates
     connect(&dialogWidget().editPassphrase(), &KNewPasswordWidget::passwordStatusChanged, this, &NewDialog::slotPasswordStatusChanged);

src/gui/partpropsdialog.cpp

@@ -30,10 +30,10 @@
 
 #include <QComboBox>
 #include <QFontDatabase>
+#include <QtGlobal>
 #include <QLineEdit>
 #include <QLocale>
 #include <QPushButton>
-#include <QtAlgorithms>
 
 #include <KConfigGroup>
 #include <KLocalizedString>
@@ -256,7 +256,7 @@ void PartPropsDialog::updateHideAndShow()
 void PartPropsDialog::setupConnections()
 {
     connect(&dialogWidget().label(), &QLineEdit::textEdited, [this] (const QString &) {setDirty();});
-    connect(&dialogWidget().fileSystem(), static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &PartPropsDialog::onFilesystemChanged);
+    connect(&dialogWidget().fileSystem(), qOverload<int>(&QComboBox::currentIndexChanged), this, &PartPropsDialog::onFilesystemChanged);
     connect(&dialogWidget().checkRecreate(), &QCheckBox::stateChanged, this, &PartPropsDialog::onRecreate);
 
     // We want to enable the OK-button whenever the user checks or unchecks a flag in the flag list.
@@ -349,7 +349,7 @@ void PartPropsDialog::onFilesystemChanged(int)
     } else {
         dialogWidget().fileSystem().disconnect(this);
         setupFileSystemComboBox();
-        connect(&dialogWidget().fileSystem(), static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &PartPropsDialog::onFilesystemChanged);
+        connect(&dialogWidget().fileSystem(), qOverload<int>(&QComboBox::currentIndexChanged), this, &PartPropsDialog::onFilesystemChanged);
     }
 }
 

src/gui/sizedialogbase.cpp

@@ -36,8 +36,9 @@
 
 #include <KLocalizedString>
 
-#include <QFrame>
 #include <QDialogButtonBox>
+#include <QFrame>
+#include <QtGlobal>
 #include <QPushButton>
 #include <QVBoxLayout>
 
@@ -150,12 +151,12 @@ void SizeDialogBase::setupConnections()
     connect(&dialogWidget().partResizerWidget(), &PartResizerWidget::firstSectorChanged, this, &SizeDialogBase::onResizerWidgetFirstSectorChanged);
     connect(&dialogWidget().partResizerWidget(), &PartResizerWidget::lastSectorChanged, this, &SizeDialogBase::onResizerWidgetLastSectorChanged);
 
-    connect(&dialogWidget().spinFreeBefore(), static_cast<void(QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged), this, &SizeDialogBase::onSpinFreeBeforeChanged);
+    connect(&dialogWidget().spinFreeBefore(), qOverload<double>(&QDoubleSpinBox::valueChanged), this, &SizeDialogBase::onSpinFreeBeforeChanged);
-    connect(&dialogWidget().spinFreeAfter(), static_cast<void(QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged), this, &SizeDialogBase::onSpinFreeAfterChanged);
+    connect(&dialogWidget().spinFreeAfter(), qOverload<double>(&QDoubleSpinBox::valueChanged), this, &SizeDialogBase::onSpinFreeAfterChanged);
-    connect(&dialogWidget().spinCapacity(), static_cast<void(QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged), this, &SizeDialogBase::onSpinCapacityChanged);
+    connect(&dialogWidget().spinCapacity(), qOverload<double>(&QDoubleSpinBox::valueChanged), this, &SizeDialogBase::onSpinCapacityChanged);
 
-    connect(&detailsWidget().spinFirstSector(), static_cast<void(QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged), this, &SizeDialogBase::onSpinFirstSectorChanged);
+    connect(&detailsWidget().spinFirstSector(), qOverload<double>(&QDoubleSpinBox::valueChanged), this, &SizeDialogBase::onSpinFirstSectorChanged);
-    connect(&detailsWidget().spinLastSector(), static_cast<void(QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged), this, &SizeDialogBase::onSpinLastSectorChanged);
+    connect(&detailsWidget().spinLastSector(), qOverload<double>(&QDoubleSpinBox::valueChanged), this, &SizeDialogBase::onSpinLastSectorChanged);
     connect(&detailsWidget().checkAlign(), &QCheckBox::toggled, this, &SizeDialogBase::onAlignToggled);
 }
 

src/gui/volumegroupdialog.cpp

@@ -30,6 +30,7 @@
 #include <KLocalizedString>
 #include <KSharedConfig>
 
+#include <QtGlobal>
 #include <QListWidgetItem>
 #include <QRegularExpressionValidator>
 
@@ -95,7 +96,7 @@ void VolumeGroupDialog::setupConnections()
 {
     connect(dialogButtonBox, &QDialogButtonBox::accepted, this, &VolumeGroupDialog::accept);
     connect(dialogButtonBox, &QDialogButtonBox::rejected, this, &VolumeGroupDialog::reject);
-    connect(&dialogWidget().volumeType(), static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &VolumeGroupDialog::onVolumeTypeChanged);
+    connect(&dialogWidget().volumeType(), qOverload<int>(&QComboBox::currentIndexChanged), this, &VolumeGroupDialog::onVolumeTypeChanged);
     connect(&dialogWidget().listPV().listPhysicalVolumes(), &QListWidget::itemChanged,
             this, [=] ( QListWidgetItem*) {
                 updateSizeInfos();