allocate_available_size

Allocates this taking into account the Actor's preferred size, but limiting it to the maximum available width and height provided.

This function will do the right thing when dealing with the actor's request mode.

The implementation of this function is equivalent to:

  if (request_mode == CLUTTER_REQUEST_HEIGHT_FOR_WIDTH)
    {
      clutter_actor_get_preferred_width (self, available_height,
                                         &min_width,
                                         &natural_width);
      width = CLAMP (natural_width, min_width, available_width);

      clutter_actor_get_preferred_height (self, width,
                                          &min_height,
                                          &natural_height);
      height = CLAMP (natural_height, min_height, available_height);
    }
  else if (request_mode == CLUTTER_REQUEST_WIDTH_FOR_HEIGHT)
    {
      clutter_actor_get_preferred_height (self, available_width,
                                          &min_height,
                                          &natural_height);
      height = CLAMP (natural_height, min_height, available_height);

      clutter_actor_get_preferred_width (self, height,
                                         &min_width,
                                         &natural_width);
      width = CLAMP (natural_width, min_width, available_width);
    }
  else if (request_mode == CLUTTER_REQUEST_CONTENT_SIZE)
    {
      clutter_content_get_preferred_size (content, &natural_width, &natural_height);

      width = CLAMP (natural_width, 0, available_width);
      height = CLAMP (natural_height, 0, available_height);
    }

  box.x1 = x; box.y1 = y;
  box.x2 = box.x1 + available_width;
  box.y2 = box.y1 + available_height;
  clutter_actor_allocate (self, &box, flags);

This function can be used by fluid layout managers to allocate an actor's preferred size without making it bigger than the area available for the container.

Parameters: