trigger updates on eometry changes (

https://github.com/uwerat/qskinny/issues/379 )

src/controls/QskGraphicLabel.cpp

@@ -10,6 +10,7 @@
 #include "QskGraphicProvider.h"
 #include "QskSkinManager.h"
 #include "QskSkin.h"
+#include "QskEvent.h"
 
 QSK_SUBCONTROL( QskGraphicLabel, Panel )
 QSK_SUBCONTROL( QskGraphicLabel, Graphic )
@@ -305,6 +306,25 @@ QSizeF QskGraphicLabel::effectiveSourceSize() const
     return sz;
 }
 
+void QskGraphicLabel::geometryChangeEvent( QskGeometryChangeEvent* event )
+{
+    /*
+        textures will finally be scaled into a target rectangle in integer
+        coordinates. This rectangle might have a different size - depending
+        on how its coordinates are rounded ( ceiled/floored ) - even if
+        the site in floating point coordinates is the same.
+
+        So we always trigger updates - even for translations.
+
+        Note that an update triggers the checks, that are needed to decide if
+        the texture needs to be recreated - it does not necessarily
+        result in actually doing it.
+     */
+    update();
+
+    Inherited::geometryChangeEvent( event );
+}
+
 void QskGraphicLabel::changeEvent( QEvent* event )
 {
     if ( event->type() == QEvent::StyleChange )

src/controls/QskGraphicLabel.h

@@ -105,7 +105,9 @@ class QSK_EXPORT QskGraphicLabel : public QskControl
     void setGraphic( const QskGraphic& );
 
   protected:
+    void geometryChangeEvent( QskGeometryChangeEvent* ) override;
     void changeEvent( QEvent* ) override;
+
     void updateResources() override;
     virtual QskGraphic loadSource( const QUrl& ) const;