diff --git a/kdecoration/breezebutton.cpp b/kdecoration/breezebutton.cpp
--- a/kdecoration/breezebutton.cpp
+++ b/kdecoration/breezebutton.cpp
@@ -206,27 +206,27 @@
                         pen.setJoinStyle( Qt::RoundJoin );
                         painter->setPen( pen );
 
-                        painter->drawPolygon( QPolygonF()
-                            << QPointF( 4, 9 )
-                            << QPointF( 9, 4 )
-                            << QPointF( 14, 9 )
-                            << QPointF( 9, 14 ) );
+                        painter->drawPolygon( QVector<QPointF>{
+                            QPointF( 4, 9 ),
+                            QPointF( 9, 4 ),
+                            QPointF( 14, 9 ),
+                            QPointF( 9, 14 )} );
 
                     } else {
-                        painter->drawPolyline( QPolygonF()
-                            << QPointF( 4, 11 )
-                            << QPointF( 9, 6 )
-                            << QPointF( 14, 11 ) );
+                        painter->drawPolyline( QVector<QPointF>{
+                            QPointF( 4, 11 ),
+                            QPointF( 9, 6 ),
+                            QPointF( 14, 11 )});
                     }
                     break;
                 }
 
                 case DecorationButtonType::Minimize:
                 {
-                    painter->drawPolyline( QPolygonF()
-                        << QPointF( 4, 7 )
-                        << QPointF( 9, 12 )
-                        << QPointF( 14, 7 ) );
+                    painter->drawPolyline( QVector<QPointF>{
+                        QPointF( 4, 7 ),
+                        QPointF( 9, 12 ),
+                        QPointF( 14, 7 ) });
                     break;
                 }
 
@@ -254,11 +254,11 @@
 
                     } else {
 
-                        painter->drawPolygon( QPolygonF()
-                            << QPointF( 6.5, 8.5 )
-                            << QPointF( 12, 3 )
-                            << QPointF( 15, 6 )
-                            << QPointF( 9.5, 11.5 ) );
+                        painter->drawPolygon( QVector<QPointF> {
+                            QPointF( 6.5, 8.5 ),
+                            QPointF( 12, 3 ),
+                            QPointF( 15, 6 ),
+                            QPointF( 9.5, 11.5 )} );
 
                         painter->setPen( pen );
                         painter->drawLine( QPointF( 5.5, 7.5 ), QPointF( 10.5, 12.5 ) );
@@ -274,18 +274,18 @@
                     {
 
                         painter->drawLine( 4, 5, 14, 5 );
-                        painter->drawPolyline( QPolygonF()
-                            << QPointF( 4, 8 )
-                            << QPointF( 9, 13 )
-                            << QPointF( 14, 8 ) );
+                        painter->drawPolyline( QVector<QPointF> {
+                            QPointF( 4, 8 ),
+                            QPointF( 9, 13 ),
+                            QPointF( 14, 8 )} );
 
                     } else {
 
                         painter->drawLine( 4, 5, 14, 5 );
-                        painter->drawPolyline( QPolygonF()
-                            << QPointF( 4, 13 )
-                            << QPointF( 9, 8 )
-                            << QPointF( 14, 13 ) );
+                        painter->drawPolyline(  QVector<QPointF> {
+                            QPointF( 4, 13 ),
+                            QPointF( 9, 8 ),
+                            QPointF( 14, 13 ) });
                     }
 
                     break;
@@ -295,30 +295,30 @@
                 case DecorationButtonType::KeepBelow:
                 {
 
-                    painter->drawPolyline( QPolygonF()
-                        << QPointF( 4, 5 )
-                        << QPointF( 9, 10 )
-                        << QPointF( 14, 5 ) );
+                    painter->drawPolyline(  QVector<QPointF> {
+                        QPointF( 4, 5 ),
+                        QPointF( 9, 10 ),
+                        QPointF( 14, 5 ) });
 
-                    painter->drawPolyline( QPolygonF()
-                        << QPointF( 4, 9 )
-                        << QPointF( 9, 14 )
-                        << QPointF( 14, 9 ) );
+                    painter->drawPolyline(  QVector<QPointF> {
+                        QPointF( 4, 9 ),
+                        QPointF( 9, 14 ),
+                        QPointF( 14, 9 ) });
                     break;
 
                 }
 
                 case DecorationButtonType::KeepAbove:
                 {
-                    painter->drawPolyline( QPolygonF()
-                        << QPointF( 4, 9 )
-                        << QPointF( 9, 4 )
-                        << QPointF( 14, 9 ) );
-
-                    painter->drawPolyline( QPolygonF()
-                        << QPointF( 4, 13 )
-                        << QPointF( 9, 8 )
-                        << QPointF( 14, 13 ) );
+                    painter->drawPolyline(  QVector<QPointF> {
+                        QPointF( 4, 9 ),
+                        QPointF( 9, 4 ),
+                        QPointF( 14, 9 ) });
+
+                    painter->drawPolyline(  QVector<QPointF> {
+                        QPointF( 4, 13 ),
+                        QPointF( 9, 8 ),
+                        QPointF( 14, 13 ) });
                     break;
                 }
 
diff --git a/kdecoration/breezesizegrip.cpp b/kdecoration/breezesizegrip.cpp
--- a/kdecoration/breezesizegrip.cpp
+++ b/kdecoration/breezesizegrip.cpp
@@ -51,11 +51,11 @@
         setFixedSize( QSize( GripSize, GripSize ) );
 
         // mask
-        QPolygon p;
-        p << QPoint( 0, GripSize )
-            << QPoint( GripSize, 0 )
-            << QPoint( GripSize, GripSize )
-            << QPoint( 0, GripSize );
+        QPolygon p = QVector<QPoint>{
+            QPoint( 0, GripSize ),
+            QPoint( GripSize, 0 ),
+            QPoint( GripSize, GripSize ),
+            QPoint( 0, GripSize )};
 
         setMask( QRegion( p ) );
 
@@ -147,13 +147,12 @@
         painter.setBrush( backgroundColor );
 
         // polygon
-        QPolygon p;
-        p << QPoint( 0, GripSize )
-            << QPoint( GripSize, 0 )
-            << QPoint( GripSize, GripSize )
-            << QPoint( 0, GripSize );
+        QPolygon p = QVector<QPoint> {
+            QPoint( 0, GripSize ),
+            QPoint( GripSize, 0 ),
+            QPoint( GripSize, GripSize ),
+            QPoint( 0, GripSize )};
         painter.drawPolygon( p );
-
     }
 
     //_____________________________________________
diff --git a/kstyle/breezehelper.cpp b/kstyle/breezehelper.cpp
--- a/kstyle/breezehelper.cpp
+++ b/kstyle/breezehelper.cpp
@@ -1302,10 +1302,10 @@
         QPolygonF arrow;
         switch( orientation )
         {
-            case ArrowUp: arrow << QPointF( -4, 2 ) << QPointF( 0, -2 ) << QPointF( 4, 2 ); break;
-            case ArrowDown: arrow << QPointF( -4, -2 ) << QPointF( 0, 2 ) << QPointF( 4, -2 ); break;
-            case ArrowLeft: arrow << QPointF( 2, -4 ) << QPointF( -2, 0 ) << QPointF( 2, 4 ); break;
-            case ArrowRight: arrow << QPointF( -2, -4 ) << QPointF( 2, 0 ) << QPointF( -2, 4 ); break;
+            case ArrowUp: arrow = QVector<QPointF>{QPointF( -4, 2 ), QPointF( 0, -2 ), QPointF( 4, 2 )}; break;
+            case ArrowDown: arrow = QVector<QPointF>{QPointF( -4, -2 ), QPointF( 0, 2 ), QPointF( 4, -2 )}; break;
+            case ArrowLeft: arrow = QVector<QPointF>{QPointF( 2, -4 ), QPointF( -2, 0 ), QPointF( 2, 4 )}; break;
+            case ArrowRight: arrow = QVector<QPointF>{QPointF( -2, -4 ), QPointF( 2, 0 ), QPointF( -2, 4 )}; break;
             default: break;
         }
 
@@ -1367,32 +1367,32 @@
 
             case ButtonMaximize:
             {
-                painter->drawPolyline( QPolygonF()
-                    << QPointF( 4, 11 )
-                    << QPointF( 9, 6 )
-                    << QPointF( 14, 11 ) );
+                painter->drawPolyline( QVector<QPointF>{
+                    QPointF( 4, 11 ),
+                    QPointF( 9, 6 ),
+                    QPointF( 14, 11 )});
                 break;
             }
 
             case ButtonMinimize:
             {
 
-                painter->drawPolyline( QPolygonF()
-                    << QPointF( 4, 7 )
-                    << QPointF( 9, 12 )
-                    << QPointF( 14, 7 ) );
+                painter->drawPolyline(QVector<QPointF>{
+                    QPointF( 4, 7 ),
+                    QPointF( 9, 12 ),
+                    QPointF( 14, 7 )} );
                 break;
             }
 
             case ButtonRestore:
             {
                 pen.setJoinStyle( Qt::RoundJoin );
                 painter->setPen( pen );
-                painter->drawPolygon( QPolygonF()
-                    << QPointF( 4.5, 9 )
-                    << QPointF( 9, 4.5 )
-                    << QPointF( 13.5, 9 )
-                    << QPointF( 9, 13.5 ) );
+                painter->drawPolygon( QVector<QPointF>{
+                    QPointF( 4.5, 9 ),
+                    QPointF( 9, 4.5 ),
+                    QPointF( 13.5, 9 ),
+                    QPointF( 9, 13.5 )});
                 break;
             }
 
diff --git a/kstyle/breezeshadowhelper.cpp b/kstyle/breezeshadowhelper.cpp
--- a/kstyle/breezeshadowhelper.cpp
+++ b/kstyle/breezeshadowhelper.cpp
@@ -455,18 +455,16 @@
 
         // create data
         // add pixmap handles
-        QVector<quint32> data;
-        foreach( const quint32& value, pixmaps )
-        { data.append( value ); }
+        QVector<quint32> data = pixmaps;
 
         const QMargins margins = shadowMargins( widget );
-        const int topSize = margins.top();
-        const int bottomSize = margins.bottom();
-        const int leftSize( margins.left() );
-        const int rightSize( margins.right() );
+        const quint32 topSize = margins.top();
+        const quint32 bottomSize = margins.bottom();
+        const quint32 leftSize( margins.left() );
+        const quint32 rightSize( margins.right() );
 
         // assign to data and xcb property
-        data << topSize << rightSize << bottomSize << leftSize;
+        data << QVector<quint32>{topSize, rightSize, bottomSize, leftSize};
         xcb_change_property( Helper::connection(), XCB_PROP_MODE_REPLACE, widget->winId(), _atom, XCB_ATOM_CARDINAL, 32, data.size(), data.constData() );
         xcb_flush( Helper::connection() );