Remove unused X11 dep (#235)

* Remove unused X11 dep

* Clazy fixes, 1st step

* Partially reverting previous commit.

CMakeLists.txt

@@ -23,7 +23,6 @@ find_package(Qt5DBus ${QT_MINIMUM_VERSION} REQUIRED)
 find_package(Qt5LinguistTools ${QT_MINIMUM_VERSION} REQUIRED)
 find_package(Qt5Svg ${QT_MINIMUM_VERSION} REQUIRED)
 find_package(Qt5Widgets ${QT_MINIMUM_VERSION} REQUIRED)
-find_package(Qt5X11Extras ${QT_MINIMUM_VERSION} REQUIRED)
 find_package(KF5IdleTime ${KF5_MINIMUM_VERSION} REQUIRED)
 find_package(KF5Solid ${KF5_MINIMUM_VERSION} REQUIRED)
 find_package(lxqt ${LXQT_MINIMUM_VERSION} REQUIRED)

src/CMakeLists.txt

@@ -1,6 +1,6 @@
 project(lxqt-powermanagement)
 
-set(QTX_LIBRARIES Qt5::Widgets Qt5::DBus Qt5::Svg Qt5::X11Extras)
+set(QTX_LIBRARIES Qt5::Widgets Qt5::DBus Qt5::Svg)
 
 set(SOURCES
     watcher.cpp

src/batteryinfoframe.cpp

@@ -44,7 +44,7 @@ BatteryInfoFrame::BatteryInfoFrame(Solid::Battery *battery) :
     mUi->typeValue->setText(BatteryHelper::typeToString(mBattery->type()));
     mUi->technologyValue->setText(BatteryHelper::technologyToString(mBattery->technology()));
 
-    QString vendor = QString::fromLatin1("%1 %2").arg(battery->recallVendor()).arg(battery->serial());
+    QString vendor = QString::fromLatin1("%1 %2").arg( battery->recallVendor() , battery->serial() );
     if (vendor.trimmed().isEmpty())
         vendor = QSL("Unknown");
     mUi->vendorValue->setText(vendor);

src/idlenesswatcher.cpp

@@ -141,7 +141,7 @@ void IdlenessWatcher::timeoutReached(int identifier,int /*msec*/)
     if(identifier == mIdleBacklightWatcher && mBacklightActualValue < 0) {
         if(mBacklight == nullptr) {
             mBacklight = new LXQt::Backlight();
-            connect(mBacklight, &QObject::destroyed, [this](QObject *) {mBacklight = nullptr;} );
+            connect(mBacklight, &QObject::destroyed, this, [this](QObject *) {mBacklight = nullptr;} );
         }
 
         //LXQt::Notification::notify(QStringLiteral("IdlenessWatcher::timeoutReached"),
@@ -165,7 +165,7 @@ void IdlenessWatcher::resumingFromIdle()
         if(mPSettings.isIdlenessBacklightWatcherEnabled()) {
             if(mBacklight == nullptr) {
                 mBacklight = new LXQt::Backlight();
-                connect(mBacklight, &QObject::destroyed, [this](QObject *) {mBacklight = nullptr;} );
+                connect(mBacklight, &QObject::destroyed, this, [this](QObject *) {mBacklight = nullptr;} );
             }
 
             if(mBacklight->isBacklightAvailable() && !mBacklight->isBacklightOff())