[PyKDE] about QPEApplication and QMainWindow

[David Douard]

Hi !

I am developping a little app (for the zaurus contest) using PyQt. And I have 
found several problems...

First, I am still obliged to comment out a few lines in the sip files in order 
to compile PyQt... (gcc complains about accessing vars which are declared 
private in the master C++ class and thus not availbale in any derived 
class---which is normal. So I still do not understand how PyQt can be 
compiled out of the box. NB: I am using Qtopia as available to Trolltech's 
site, GPL version).

Then I have spent almost a day to realize that I had many problems with the 
Qtopia integration of my app which where du to the fact that the 
/tmp/qcop-msg file was not opened, read end destroyed by my app... Which was 
due to the fact that, in the QApplication code (file qapplication.cpp), the 
name of the program (argv[0]) is filtered (to remove full path and so) AFTER 
the file /tmp/qcop-msg/appname if opened... And Python gives the fullpath as 
argv[0]...
So I could solve this easily just by filtering the args given to my 
QPEApplication constructor...

It's trivial but one can spen time on it (as I did). Maybe a little TIP file 
(or FAQ entry) on the PyQt site would be nice ?

Last, I use a QMainWindow derived class as main widget. But the problem is 
that the QMainApplication does NOT declare slots which are used by 
QApplication to send messages like "newDocument" or "accept". In the C++ 
world, you just have to subclass QMainApplication declaring thoses 
fuctions... But if I subclass it with a python class, messages are not 
transmited... I haven't looked deeply, but I  guess it is not possible for a 
C++ class to send a message (at the c++ level. When I say send, I mean 
calling the slot function as done in QPEApplication code for "setDocument", 
for example) to a purely python defined slot... (Am I wrong ?)
In this case you (I mean Phil) should provide a QPEMainApplication class with 
an associated  python  binding which just declare thoses required slot 
functions as virtual, so user can redefine them at Python level. 
It is what I have done for my little app, but it would be nice to have that 
explained and implemented in PyQt...

Thanks for any answer...

David Douard

PS: I am not on the ML, so please CC me back. Thank you.