Re: Tkinter problem on Mac OS X
In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED] (Andrew Trevorrow) wrote: > Our app uses embedded Python to allow users to run arbitrary scripts. > Scripts that import Tkinter run fine on Windows, but on Mac OS X there > is a serious problem. After a script does "root = Tk()" our app's menus > are permanently changed in the following way: > > - The top item in the application menu changes to "About Tcl & Tk...". > - The Quit item is disabled. > - The File and Edit menus are completely replaced. > - All further menus (except Help) are removed. > > Is there a way to prevent Tkinter clobbering our app's menus? > Or perhaps a way to restore them after the root.mainloop() call? > > I've read Fredrik Lundh's excellent tutorial on Tkinter and done a lot > of googling but haven't been able to find a solution. > > I can probably add some Mac-specific code to detect a menu change after > a script ends and then rebuild our menus, but I'm hoping there's a > simpler Tkinter (or Tcl?) solution. I am pretty sure it's the underlying Tcl/Tk that's causing you grief. Does your application itself use Tcl/Tk anywhere? I'm guessing not, as I'd expect you'd already have gone to some trouble to get the menus right. Unfortunately, I can't offer a solution. You may want to post to the Tkinter mailing list (via news you can use gmane, group gmane.comp.python.tkinter; I'm not sure if you have to sign up for the list before posting). You could import Tcl/Tk yourself "up front" and then fix your application's menus once. But Aqua Tcl/Tk is painfully slow to start up, so this could really slow down startup of your own application. (Note that you'd have to be prepared for Tkinter to be missing (it certainly is by default on 10.3). You might also have to make users use one mainloop (see next paragraph) for this to work. James Stroud also brings up an interesting point--that it could be dangerous if there are multiple scripts each trying to run their own mainloop. But if only one runs at a time, and cleans up after itself, you're probably OK. If that's not the case, you may want to start a Tk main loop yourself and ask users to use that loop. Again, though--it'll take time, and it'll only help those users who use Tkinter in their scripts. -- Russell -- http://mail.python.org/mailman/listinfo/python-list
Re: Tkinter problem on Mac OS X
Andrew Trevorrow wrote: > Our app uses embedded Python to allow users to run arbitrary scripts. > Scripts that import Tkinter run fine on Windows, but on Mac OS X there > is a serious problem. After a script does "root = Tk()" our app's menus > are permanently changed in the following way: > > - The top item in the application menu changes to "About Tcl & Tk...". > - The Quit item is disabled. > - The File and Edit menus are completely replaced. > - All further menus (except Help) are removed. > > Is there a way to prevent Tkinter clobbering our app's menus? > Or perhaps a way to restore them after the root.mainloop() call? > > I've read Fredrik Lundh's excellent tutorial on Tkinter and done a lot > of googling but haven't been able to find a solution. > > I can probably add some Mac-specific code to detect a menu change after > a script ends and then rebuild our menus, but I'm hoping there's a > simpler Tkinter (or Tcl?) solution. > > Andrew This menu mashing is a problem. This really has nothing to do with programing in Tcl, Tk, Python, or Tkinter. First of all, the "About Tcl & Tk" is hard-wired during the build of Aqua Tk. To fix this will require downloading the sources and building your own Aqua Tk from scratch: http://tcltkaqua.sourceforge.net/8.4.10/ Alternatively, you can res-edit the appropriate files. The "About Tcl & Tk" menu item is held in an rsrc file. I forget exactly where, but I can take a look on my ibook if you are interested in this route. To do this, you will want a working copy of resknife. I had some trouble with it, so I had to build it for my ibook with xcode--IIRC, the build I downloaded had problems saving. Getting the source and building on my computer fixed it. Its a great program. I'm guessing the best way to get around destroying your menus is to intercept calls to Tk(). I've had bad luck with multiple Tk() instances running in the same session (this is the case with EVERY implementation of Tkinter I've seen, Linux, Mac, etc.). StringVar and IntVar instances get very screwy with multiple Tk()s. You might want to re-define Tk() to return the root instance created by your program. Also, knew Toplevel()s will have their own menus, resulting in your application's menus becoming replaced while the Toplevel() is in the foreground, that's just how Aqua Tk works. This may be something you have to live with if you want your students (I'm guessing) to learn about python in your environment. James -- James Stroud UCLA-DOE Institute for Genomics and Proteomics Box 951570 Los Angeles, CA 90095 http://www.jamesstroud.com/ -- http://mail.python.org/mailman/listinfo/python-list
Tkinter problem on Mac OS X
Our app uses embedded Python to allow users to run arbitrary scripts. Scripts that import Tkinter run fine on Windows, but on Mac OS X there is a serious problem. After a script does "root = Tk()" our app's menus are permanently changed in the following way: - The top item in the application menu changes to "About Tcl & Tk...". - The Quit item is disabled. - The File and Edit menus are completely replaced. - All further menus (except Help) are removed. Is there a way to prevent Tkinter clobbering our app's menus? Or perhaps a way to restore them after the root.mainloop() call? I've read Fredrik Lundh's excellent tutorial on Tkinter and done a lot of googling but haven't been able to find a solution. I can probably add some Mac-specific code to detect a menu change after a script ends and then rebuild our menus, but I'm hoping there's a simpler Tkinter (or Tcl?) solution. Andrew -- http://mail.python.org/mailman/listinfo/python-list
