support inverted layout

src/declarativeimports/plasmacomponents/qml/Button.qml

@@ -114,6 +114,8 @@ Item {
         }
     }
 
+    LayoutMirroring.enabled: (Qt.application.layoutDirection === Qt.RightToLeft)
+    LayoutMirroring.childrenInherit: true
     implicitHeight: Math.floor(Math.max(theme.mSize(theme.defaultFont).height*1.6, minimumHeight))
 
     // TODO: needs to define if there will be specific graphics for

src/declarativeimports/plasmacomponents/qml/ToolButton.qml

@@ -94,6 +94,8 @@ Item {
      */
     property real minimumHeight: Math.max(units.iconSizes.small, label.paintedHeight) + delegate.margins.top + delegate.margins.top
 
+    LayoutMirroring.enabled: (Qt.application.layoutDirection === Qt.RightToLeft)
+    LayoutMirroring.childrenInherit: true
     implicitWidth: {
         if (label.text.length == 0) {
             height;