A little refactoring.

code/nel/include/nel/gui/ctrl_text_button.h

@@ -126,6 +126,7 @@ namespace NLGUI
 
 		void onRemoved();
 		void onWidgetDeleted( CInterfaceElement *e );
+		void moveBy( sint32 x, sint32 y );
 
 	protected:
 

code/nel/include/nel/gui/interface_element.h

@@ -510,6 +510,14 @@ namespace NLGUI
 		/// so other widgets in the group can check if it belongs to them
 		virtual void onWidgetDeleted( CInterfaceElement *e ){}
 
+		/// Move the element by x in the X direction and y in the Y direction
+		//  Uses real coordinates
+		virtual void moveBy( sint32 x, sint32 y )
+		{
+			_XReal += x;
+			_YReal += y;
+		}
+
 	protected:
 
 		bool editorSelected;

code/nel/src/gui/ctrl_text_button.cpp

@@ -863,10 +863,6 @@ namespace NLGUI
 			if(getFrozen() && getFrozenHalfTone())
 				_ViewText->setAlpha(_ViewText->getAlpha()>>2);
 
-			// When dragging the button, the text needs to move too
-			if( CInterfaceElement::editorMode )
-				_ViewText->updateCoords();
-
 			_ViewText->draw();
 		}
 	}
@@ -1017,5 +1013,13 @@ namespace NLGUI
 	void CCtrlTextButton::onWidgetDeleted( CInterfaceElement *e )
 	{
 	}
+
+	void CCtrlTextButton::moveBy( sint32 x, sint32 y )
+	{
+		CInterfaceElement::moveBy( x, y );
+
+		if( _ViewText != NULL )
+			_ViewText->updateCoords();
+	}
 }
 

code/nel/src/gui/widget_manager.cpp

@@ -2633,9 +2633,7 @@ namespace NLGUI
 				sint32 dx = newX - oldX;
 				sint32 dy = newY - oldY;
 
-				draggedElement->setXReal( draggedElement->getXReal() + dx );
+				draggedElement->moveBy( dx, dy );
-				draggedElement->setYReal( draggedElement->getYReal() + dy );
-				draggedElement->invalidateCoords();
 			}
 		}