Re: GWorkspace as windowmanager?

[Gregory John Casamento]

My apologies for replying to myself this time...

Alternatively you could, of course, post a patch which would let others examine
the issue without disturbing the repository.

GJC
 
--- Gregory John Casamento <greg_casamento@yahoo.com> wrote:
> 
> --- Enrico Sersale <enrico@imago.ro> wrote:
> > On 2004-06-12 18:33:14 +0300 Enrico Sersale <enrico@imago.ro> wrote:
> > 
> > > On 2004-06-12 18:10:27 +0300 Enrico Sersale <enrico@imago.ro> wrote:
> > > 
> > >> On 2004-06-12 15:03:49 +0300 Enrico Sersale <enrico@imago.ro> wrote:
> > >> 
> > >>> On 2004-06-12 14:05:37 +0300 Gregory John Casamento 
> > >>> <greg_casamento@yahoo.com> wrote:
> > >>> 
> > >>>> 
> > >>>>>> <snip>
> > >>>>> 
> > >>>>> Is there a way to have a NSWindow which _windowNum is 0, that is, the
> X
> > 
> > >>>>> root
> > >>>>> window?
> > >>>>> In XGServerWindow we have a -_rootWindowForScreen: method returning a
> > >>>>> gswindow_device_t structure that represents the root window; it is
> used
> > 
> > >>>>> in
> > >>>>> -window::: to set the root window for all the new windows.
> > >>>>> I've tried to subclass NSWindow to override -_initBackendWindow: and 
> > >>>>> then add
> > >>>>> something in XGServerWindow to setup all the stuff, but I can't
> because
> > >>>>> -_initBackendWindow: accesses windowmaps, a class variable of
> NSWindow.
> > >>>> 
> > >>>> If you find the answer to this, please let me know as well. 
> > >>>> InnerSpace.app,
> > >>>> the screensaver in my GAP project, needs to have a window which sits
> at 
> > >>>> this
> > >>>> level as well.
> > >>> 
> > >>> Only a idea...
> > >>> 
> > >>> If a window is deferred, NSWindow calls -_initBackendWindow: only in 
> > >>> -orderWindow:relativeTo:.
> > >>> NSDesktopWindowLevel is a GNUstep addition, so, the case of a window
> that
> > 
> > >>> is deferred *and* which level is NSDesktopWindowLevel could be used to 
> > >>> identify the root window.
> > >>> In this case NSWindow, instead of -_initBackendWindow:, could use a
> other
> > 
> > >>> method, say "-_initRootBackendWindow:", that, throught a appropiate
> > method 
> > >>> in GSDisplayServer (instead of -window:::, -rootwindow:::, for
> example), 
> > >>> let the backend class setup the window. (The backend part should be
> easy 
> > >>> to write, I think).
> > >> 
> > >> This seems to work, but I'm getting a "Desktop[9837] X-Windows error - 
> > >> BadAccess (attempt to access private resource denied)" in the new
> backend 
> > >> method. I'm doing something wrong with some X function. Could somebody a
> 
> > >> little more expert in X take a look at this? Gregory?
> > > 
> > > The problem is here:
> > > 
> > >   XSelectInput(dpy, window->ident, ExposureMask | KeyPressMask |
> > >                           KeyReleaseMask | ButtonPressMask |
> > >                        ButtonReleaseMask | ButtonMotionMask |
> > >                      StructureNotifyMask | PointerMotionMask |
> > >                          EnterWindowMask | LeaveWindowMask |
> > >                          FocusChangeMask | PropertyChangeMask |
> > >                       ColormapChangeMask | KeymapStateMask |
> > >                       VisibilityChangeMask);
> > > 
> > > Anyway, I can confirm that this works; I'm adding NSViews in the root
> > window 
> > > and drawing in them. The only thing that doesn't work are the events.
> > 
> > Excuse me. This is the third time I reply to my mail :-)
> > 
> > It seems that there are some restrictions in setting the event-mask in
> > XSelectInput(); I never used XLib and I didn't know this. I can't get mouse
> > and key events beacause the window manager has already selected them.
> > 
> > Is there any way to go around this?
> > 
> > All the other things work perfectly, the Desktop.app window is now the real
> X
> > root window (windowNumber = 0); and this only with four lines added in
> > NSWindow.m, a little method in GSDisplayServer and the rest in
> > XGServerWindow.
> > I think that it would be a pity not make it to work...
> 
> I'm wondering if changing this would cause issues with the window manager.  
> What do you think? :/   
> 
> You should probably go ahead and commit what you've changed, so that the rest
> of us can take a look at it.  My knowledge of "pure" X is a little rusty, but
> I
> might be able to figure it out.
> 
> GJC
> 
> =====
> Gregory John Casamento -- CEO/President Open Logic Corp.
> #### Maintainer of Gorm for GNUstep.
> 
> 
>       
>               
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=====
Gregory John Casamento -- CEO/President Open Logic Corp.
#### Maintainer of Gorm for GNUstep.


        
                
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