As long as you don't call [NSApplication sharedApplication] (or, in
fact, initialize NSApplication at all), you can use classes in the gui
without a backend. But you have to be careful not to use any
classes/methods that cause any display or drawing. Also you could
create a dummy backend (something like gsc in gnustep-back). That does
nothing or does what you want it (see documentation for GSDisplayServer
and NSGraphicsContext).
On Sep 10, 2006, at 2:09 PM, [EMAIL PROTECTED] wrote:
Gregory,
Thanks for your answer.
I dont want to make a 'gnustep application', but an 'application
using gnustep' ;-)
Actually i want to make a tiny 3D game in objective C. You may see
that as a training (for me) and a test of the efficiency of
objective c for that kind of application. SDL is imho a good choice
for a game, and gnustep is a good choice for objective C.
Basically i need a simple cross-platform multimedia library, with
_joystick_support_, fullscreen display, custom resolution... Gnustep
cant do that, but can do many other useful things. And I'd like to
write some code that might be run/resuse later on a full gnustep
system, and then i have to write some NS-compatible classes.
In brief I need something like a NSApplication class that does not
need any NSWindow object. I could (try to) write it from scratch,
but i'd prefer reuse gnustep classes if i can : they are better than
anything i could make...
TIA
Xavier
Selon Gregory John Casamento <[EMAIL PROTECTED]>:
Xavier,
You've given little information about what you're actually trying to
do.
Your email details how you would like to solve the issue, but doesn't
clearly
define what the issue is.
Based on the fact that you briefly mention OpenGL, I assume you
want to make
a GNUstep application which displays OpenGL graphics. GNUstep has an
implementation of NSOpenGLView which allows OpenGL to be directly
displayed
in the view. GNUstep does this by creating an OpenGL window and
reparenting
it to the view, thus not incurring any overhead.
Is there some issue with using this?
Later, GJC
--Gregory Casamento
----- Original Message ----
From: [EMAIL PROTECTED]
To: gnustep-dev@gnu.org
Sent: Sunday, September 10, 2006 11:59:00 AM
Subject: question to backend/gui guru...
Hello
I intend to write a SDL+OpenGL application based on gnustep.
I can use gnustep-base without problem, but i'd like to use some
parts of
gnustep-gui (event management, ...) without any graphic or window
class/function.
SDL dont provides any graphic function, and I dont want to write Ã
full
SDL+OpenGL backend !!
I dont want to rewrite gnustep in any way. I only want to compile the
classes
i
need in gnustep-gui. But I understand I would have to write a partial
backend,
a "SDL-server", like "win32" or "X11" ones (i hope i can do that...)
I wonder if it would be easy (or at least feasible) to split/compile
gnustep-back and gnustep-gui in two parts : "server" and "system" on
one
side,
and "graphics" and "gui" on the other side.
(and then use only (SDL-)server/system)
Any informations about dependances between classes will be welcome !
Its
quite
obscur for me... :o\
In brief : feasible or not ? thnks in advance !
Xavier
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