Re: MulleEOInterface

[Marcus Müller]

Hi Dirk,

On Friday, May 23, 2003, at 17:51 Europe/Berlin, Dirk Lattermann wrote:

> Hello,
>
> I succeeded in compiling MulleEOInterface with GNUstep and
> GDL2.  I fixed several bugs (I think) and got a few things to work,
> but didn't try the much.
>
> There are some doubtful things I have done:
>
> - I replaced
> objc_msgSend(bla, selector, argument) with
> [bla performSelector: selector withObject: argument]
> but this occurs in code that I didn't use in tests.

this stuff was probably there to speed things up (Nat! is a well-respected speed optimization fanatic). 

You can use the following on Apple/GNUstep:

#ifndef GNU_RUNTIME /* NeXT RUNTIME */

#define EDObjcMsgSend(obj, sel) objc_msgSend((obj), (sel))
#define EDObjcMsgSend1(obj, sel, obj1) objc_msgSend((obj), (sel), (obj1))
#define EDObjcMsgSend2(obj, sel, obj1, obj2) objc_msgSend((obj), (sel), (obj1), (obj2))
#define EDObjcMsgSend3(obj, sel, obj1, obj2, obj3) objc_msgSend((obj), (sel), (obj1), (obj2), (obj3))

#else /* GNU_RUNTIME */

#define EDObjcMsgSend(obj, sel) objc_msg_lookup((obj), (sel))((obj), (sel))
#define EDObjcMsgSend1(obj, sel, obj1) objc_msg_lookup((obj), (sel))((obj), (sel), (obj1))
#define EDObjcMsgSend2(obj, sel, obj1, obj2) objc_msg_lookup((obj), (sel))((obj), (sel), (obj1), (obj2))
#define EDObjcMsgSend3(obj, sel, obj1, obj2, obj3) objc_msg_lookup((obj), (sel))((obj), (sel), (obj1), (obj2), (obj3))

#endif

These are all taken from EDCommon/EDObjcRuntime.h, also available from Mulle kybernetiK (http://www.mulle-kybernetik.com/software/EDFrameworks/).


> All works only by creating and connecting the classes programmatically,
> I've never used Gorm, but I presume getting this to work with Gorm
> (creating palettes?) is much work.

We've provided a demonstration on FOSDEM 2003 how that could be done in Gorm. The MulleConnectInspector (http://www.mulle-kybernetik.com/software/MCI/) provides the whole infrastructure for associations and a palette (for OS X only). In its current incarnation, the MulleEOInterface isn't running on top of MCI, but could be ported easily to do so.

> I had to modify the queueing mechanisms of EODelayedObserverQueue
> because it was broken.  Will post a bug report.

That sounds strange, because it definitely works on OS X. MulleEOInterface is used in a commercial application for several years now. It's most probably a GNUstep related issue I think.


> As I don't have access to a Cocoa system, I don't know if it still
> compiles there.  Can I simply replace #import by #include with
> #ifndef-protection there as well?

Yes, sure. The only exception are system framework headers (Foundation, AppKit) as Apple doesn't provide 'safeguarding' for these.


> If someone is interested, I will put the code somewhere (and tell the
> location :-) ).  Need to clean it up a bit before, though.
>
> I find this very exciting, so I thought I should write about it
> right now!
>
> Thanks, Nat (or whomever at Mulle Kybernetik I have to thank)!!

Nat! is the one. For MCI contact Erik Dörnenburg <erik AT mulle-kybernetik.com>.


Cheers,

Marcus

-- 
Marcus Mueller  .  .  .  crack-admin/coder ;-)
Mulle kybernetiK  .  http://www.mulle-kybernetik.com
Current projects: finger znek@mulle-kybernetik.com