/**************************************************
 Module GraphicButton
 Server part
 Version: 1.0
 Author: Julien Zorko
 Last update: 01/06/2001 
 Roll over button with customisable bitmap
**************************************************/

/*******************************************************************************
 the client part of the module has been deleted
 cli -> CLIENT : the client
     <- I      : nothing special (always 0)
*******************************************************************************/
fun cbDeleteClient (cli) =
  _DMSeventTag this CtoU cli "out" nil nil nil;
  0
;;

/*******************************************************************************
 destroy a client
 from   -> DMI       : not used
 user   -> User      : the user that run the action
 action -> S         : not used
 param  -> S         : not used
 others -> [User r1] : not used
 tag    -> Tag       : not used
        <- I         : nothing special
*******************************************************************************/
fun cbDestroy (from, user, action, param, others, tag) =
  let UtoC user -> cli in
  (
    _DMSdelClientDMI this cli;
    cbDeleteClient cli
  );
  0
;;

/*******************************************************************************
 create a client
 from   -> DMI       : not used
 user   -> User      : the user that run the action
 action -> S         : not used
 param  -> S         : parameters of the action
 others -> [User r1] : not used
 tag    -> Tag       : not used
        <- I         : nothing special
*******************************************************************************/
fun cbStart (from, user, action, param, others, tag, params) =
  if _DMScreateClientDMI this UtoC user params then
    _DMSeventTag this user "entering" nil nil nil
  else
    nil
;;

/*******************************************************************************
  Module instanciation
*******************************************************************************/
fun IniDMI(s)=
  let _DMSgetDef this "params" -> params in
  let getInfo params "picture" -> sBitmap in
  (
    _DMSregister this nil @cbDeleteClient nil;
    _DMSdefineActions this (["start" (mkfun7 @cbStart strbuild params)])::(["destroy" @cbDestroy])::nil;

    /* register button bitmap for client loading */
    _RSregister this sBitmap RSfile+RScontrol sBitmap
  );
  0
;;