full updates for setting skinlet or margin

src/controls/QskQuickItem.cpp

@@ -603,9 +603,14 @@ bool QskQuickItem::event( QEvent* event )
         }
         case QEvent::ContentsRectChange:
         {
+            resetImplicitSize();
+
             if ( polishOnResize() )
                 polish();
 
+            if ( flags() & QQuickItem::ItemHasContents )
+                update();
+
             changeEvent( event );
             return true;
         }
@@ -779,9 +784,10 @@ void QskQuickItem::itemChange( QQuickItem::ItemChange change,
         case QQuickItem::ItemChildAddedChange:
         case QQuickItem::ItemChildRemovedChange:
         {
-            // do we want to have events for thos ???
+            // do we want to have events for those ???
             break;
         }
+
         case QQuickItem::ItemOpacityHasChanged:
         case QQuickItem::ItemActiveFocusHasChanged:
         case QQuickItem::ItemRotationHasChanged:

src/controls/QskSkinnable.cpp

@@ -258,7 +258,14 @@ void QskSkinnable::setSkinlet( const QskSkinlet* skinlet )
     m_data->skinlet = skinlet;
     m_data->hasLocalSkinlet = ( skinlet != nullptr );
 
-    owningControl()->update();
+    if ( auto control = owningControl() )
+    {
+        control->resetImplicitSize();
+        control->polish();
+
+        if ( control->flags() & QQuickItem::ItemHasContents )
+            control->update();
+    }
 }
 
 const QskSkinlet* QskSkinnable::skinlet() const

src/controls/QskSkinnable.h

@@ -72,7 +72,7 @@ class QSK_EXPORT QskSkinnable
     QskSkinnable();
     virtual ~QskSkinnable();
 
-    void setSkinlet( const QskSkinlet* skinlet );
+    void setSkinlet( const QskSkinlet* );
     const QskSkinlet* skinlet() const;
 
     QFont effectiveFont( QskAspect ) const;