An image-forming apparatus includes a database storing a layout template made up of containers, each representing a display area for a part of a user interface (UI). The user interface is configured by embedding display content in each container of the layout template in the database. On the occurrence of an event for changing arrangement of the user interface, the user interface is reconfigured by calculating arrangement of each container according to the size of the display content in one of the containers and embedding the display content in each container subjected to the calculation.