Subversion Repositories openrisc

struct w

{

  int top;

  int left;

  int height;

  int width;

  struct w *next;

  struct w *parent;

  struct w *child;

};

extern struct w *Qnil;

void

set_size (struct w *w, int new_size, int nodelete, int set_height)

{

  int old_size = set_height? w->height : w->width;

  if (nodelete || w->parent == Qnil)

    {

      int last_pos, last_old_pos, pos, old_pos, first;

      int div_val = old_size << 1;

      struct w *c;

      last_pos = first = set_height? w->top : w->left;

      last_old_pos = 0;

      for (c = w->child; c != Qnil; c = c->next)

        {

          if (set_height)

            old_pos = last_old_pos + c->height;

          else

            old_pos = last_old_pos + c->width;

          pos = (((old_pos * new_size) << 1) + old_size) / div_val;

          set_size (c, pos + first - last_pos, 1, set_height);

          last_pos = pos + first;

          last_old_pos = old_pos;

        }

      if (!nodelete)

        for (c = w->child; c != Qnil; c = c->next)

          use (c);

    }

}