Original:
static gint get_real_pos(window_settings * ws, gint tobj, decor_t * d)
{
    gint width = d->width;
    gint base=ws->left_space;
    switch(d->tobj_item_state[tobj])
    {
        case 1:
            base=(width-ws->left_space-ws->right_space-d->tobj_size[0]-d->tobj_size[2])/2-
                (d->tobj_size[1]/2)+ws->left_space+d->tobj_size[0];
            break;
        case 2:
            base=width-ws->right_space-d->tobj_size[2];
            break;
        case 3:
            return -1;
        default:
            break;
    }
    return base+d->tobj_item_pos[tobj];
}


Mine:
static gint get_real_pos(window_settings * ws, gint tobj, decor_t * d)
{
    switch(d->tobj_item_state[tobj])
    {
        case 1:
            return ( 1 + (d->width + ws->left_space - ws->right_space +
                d->tobj_size[0] - d->tobj_size[1] - d->tobj_size[2]) / 2 );
        case 2:
            return ( 2 + d->width - ws->right_space - d->tobj_size[2] );
        case 3:
            return -1;
        default:
            return ( d->tobj_item_pos[tobj] + ws->left_space );
    }
}