Re: [MACTCL] Mac OS X: help with C app which uses Tk?

[Ashley W. <ash...@nt...>]

>on 10/1/02 1:47 AM, Jim Ingham at ji...@ap... wrote:
>> On 1/9/02 9:07 AM, "Ashley Ward" <ash...@nt...> wrote:
>> linking my application with them.  (By the way: can anyone tell me the
>> equivalent of 'ldd' on Mac OS X so I can check this?).
> 
> otool -L
> 
> Is what you want, I think.
>
>> I still get the SetFrontProcess error, every time I try to give my app
>> focus.
> 
> Are you building your app as an app package (I may have asked this before, I
> forget).  There are problems with getting the WindowServer to recognize you
> if you are not wrapped in a proper App package.  It is easy to get PB to do
> this for you.  You don't even need to use PB to build your App.  If you are
> already using a Makefile, then make one target that is a "Legacy Makefile
> Target" that builds your App, and an App target that builds the App package,
> and copies the binary into the correct place in the package.

Ah -- yup, thanks -- that was it.

My app now runs :) :), but I've got a bunch of minor bugs, which I'll
describe below.  First, though, I'm trying to figure out how to make the
Application package portable from machine to machine, even if the Tcl/Tk
Frameworks are not installed on the machine.

To do this, I think I need to include the Tcl and Tk Frameworks in my
application bundle in Contents/Frameworks or perhaps even
Contents/SharedFrameworks.

However, I can't even convince the linker to link with the Tcl/Tk Frameworks
that I've compiled up from CVS (in /Users/ashley/TclTkCVS/tcl and tk).  My
link line currently looks like this:

cc -o tkeden Eden/libeden.a Misc/libmisc.a Donald/libdonald.a
Sasami/libsasami.a EX/libex.a Scout/libscout.a
/Users/ashley/TclTkCVS/tk/macosx/build/Tk.framework/Tk
/Users/ashley/TclTkCVS/tk/macosx/build/Tcl.framework/Tcl
/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundatio
n /System/Library/Frameworks/Carbon.framework/Carbon nothing.c

(I seem to need CoreFoundation and Carbon as I'm using a few CFBundle calls
to get a reference to some library files in Contents/Resources, similar to
the code in tkMacOSXAppInit.c).

which succeeds, despite this warning:

/usr/bin/ld: warning unused multiple definitions of symbol _matherr
/Users/ashley/TclTkCVS/tk/macosx/build/Tcl.framework/Tcl(tclMtherr.o)
definition of _matherr
/usr/lib/libSystem.dylib(s_matherr.o) unused definition of _matherr

...but 'otool -L' shows that it has actually picked the Tcl/Tk Frameworks
that I installed from the binary Wish package in /Library:

[localhost:~/tkeden] ashley% otool -L tkeden
tkeden:
        /Library/Frameworks/Tk.framework/Versions/8.4/Tk (compatibility
version 8.4.0, current version 8.4.0)
        /Library/Frameworks/Tcl.framework/Versions/8.4/Tcl (compatibility
version 8.4.0, current version 8.4.0)
    
/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundatio
n (compatibility version 150.0.0, current version 227.2.0)
        /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
(compatibility version 2.0.0, current version 122.0.0)
        /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
version 55.0.0)

If I temporarily rename /Library/Frameworks to something else, my app then
won't load.

So:

1) How do I convince the linker to use the Frameworks I've specified?
2) (Presumably having achieved this...) How do I set the linker up to link
with a Framework within the final application bundle?

I'm using plain command line cc and make etc as I'd like to use the same
build setup that I have on other platforms.  In vain, last night I tried to
get it into ProjectBuilder, but I can't even compile it there -- currently
tk.h seems to be looking for a load of X and other stuff:

/Users/ashley/TclTkCVS/tk/macosx/build/Tk.framework/Versions/8.4/Headers/tk.
h:86: header file 'X11/Xlib.h' not found
/Users/ashley/TclTkCVS/tk/macosx/build/Tk.framework/Versions/8.4/Headers/tk.
h:561: undefined type, found `XEvent'
/Users/ashley/TclTkCVS/tk/macosx/build/Tk.framework/Versions/8.4/Headers/tk.
h:570: undefined type, found `Tk_ClassCreateProc'
[etc etc]

I've tried to look through all the docs I downloaded with the Developer
Tools, but nothing seems to explain linker issues (and much of man ld goes
over my head).

Any hints would be appreciated!

Also, I have a few bugs in my app which, now I've noticed them, seem to also
occur in Wish, so I assume they are Tcl/Tk bugs.

- Cut and paste from other applications doesn't work (it seems OK within the
app).

- In the scroll bar, the down button is only slightly visible: it is
obscured by the window resize widget.

- When dragging the title bar of a window in order to move it, it seems
necessary to give it focus first.

- 'Hide tkeden' (in the left most menu) doesn't work.  Wish seems to die
unexpectedly when this is chosen.

- I have some menus with -tearoff set.  This is implemented as a
"(Tear-off)" menu option, which creates a torn off menu at the extreme
top-left of the screen, with the first item behind the Apple menu bar :(

- Maximise (+) button doesn't work.

- The Aqua close / minimise / maximise buttons in the title bar don't show
their x - + inners when the mouse is moved over them.

Finally, the other bug which I could do with some help on (I have lots more,
but I hope I can fix these myself!) is that the About option in the left
most menu for my app is actually "About Tcl & Tk" and leads to that
information.  How do I override this to show my own About information?

Many thanks for any help...

Ash.

-- 
          Ashley Ward - Graduate Teaching Assistant - PhD student
     as...@dc... - http://www.dcs.warwick.ac.uk/~ashley/
Room 3.16, Department of Computer Science, University of Warwick, Coventry