Qt5 connects

Author: nyalldawson

src/app/qgisapp.cpp

@@ -2477,7 +2477,7 @@ void QgisApp::createStatusBar()
   mScaleWidget = new QgsStatusBarScaleWidget( mMapCanvas, statusBar() );
   mScaleWidget->setObjectName( QStringLiteral( "mScaleWidget" ) );
   mScaleWidget->setFont( myFont );
-  connect( mScaleWidget, SIGNAL( scaleLockChanged( bool ) ), mMapCanvas, SLOT( setScaleLocked( bool ) ) );
+  connect( mScaleWidget, &QgsStatusBarScaleWidget::scaleLockChanged, mMapCanvas, &QgsMapCanvas::setScaleLocked );
   statusBar()->addPermanentWidget( mScaleWidget, 0 );
 
   // zoom widget
@@ -10513,8 +10513,8 @@ void QgisApp::projectProperties()
   connect( pp, SIGNAL( displayPrecisionChanged() ), this,
            SLOT( updateMouseCoordinatePrecision() ) );
 
-  connect( pp, SIGNAL( scalesChanged( const QStringList & ) ), mScaleWidget,
-           SLOT( updateScales( const QStringList & ) ) );
+  connect( pp, &QgsProjectProperties::scalesChanged, mScaleWidget,
+           &QgsStatusBarScaleWidget::updateScales );
   QApplication::restoreOverrideCursor();
 
   //pass any refresh signals off to canvases

src/app/qgsstatusbarscalewidget.cpp

@@ -67,10 +67,10 @@ QgsStatusBarScaleWidget::QgsStatusBarScaleWidget( QgsMapCanvas *canvas, QWidget
 
   setLayout( mLayout );
 
-  connect( mScale, SIGNAL( scaleChanged( double ) ), this, SLOT( userScale() ) );
+  connect( mScale, &QgsScaleComboBox::scaleChanged, this, &QgsStatusBarScaleWidget::userScale );
 
-  connect( mLockButton, SIGNAL( toggled( bool ) ), this, SIGNAL( scaleLockChanged( bool ) ) );
-  connect( mLockButton, SIGNAL( toggled( bool ) ), mScale, SLOT( setDisabled( bool ) ) );
+  connect( mLockButton, &QAbstractButton::toggled, this, &QgsStatusBarScaleWidget::scaleLockChanged );
+  connect( mLockButton, &QAbstractButton::toggled, mScale, &QWidget::setDisabled );
 }
 
 QgsStatusBarScaleWidget::~QgsStatusBarScaleWidget()