Different behaviour on different distributions

[Kumula]

Qt3 has such plugins also.

Okay, but I couldn't find them. But both Gentoo boxes have nearly the same USE flags (except of some workstation-related stuff like "cups" or "xinerama"), so the support for various image format should be there. Additionally, I can't believe that a binary distribution like SUSE has Qt's PNG support missing... (SUSE has *everything* )

Could you tell us a bit more about your project?

Well, it's a small business suite to be enhanced to fit the needs of various branches. You can visit http://www.kumula.org to find out more, and if you think "Why another business software?" please read http://www.kumula.org/docs/?title=Paradigm

As promised, I post a development version here: http://www.kumula.org/kumula-2006.02alpha.tar.gz
Extract it anywhere, and run "./Kumula/bin/configurator.py", because the Configurator program is the one and only which doesn't need a database. You should see the Kumula icon on the left side of the menubar, and the QMessageBoxes shouldn't have visible HTML tags...

Thanks for any help!

[jacek]

You should see the Kumula icon on the left side of the menubar, and the QMessageBoxes shouldn't have visible HTML tags...

I can't see the icon, but message boxes are OK.

[Kumula]

Okay, now it's 3:1 for an invisible PNG icon in the menubar... Did I implement something wrong? The menubar for all applications is defined in ./Kumula/lib/KumulaMainWindow.py, in class "KKumulaMainWindow", in method "createMenuBar()". The Python code

self.MenuBar.insertItem(kumula.getMenuBarIcon("kumula",1), self.menuProg, -1)

self.MenuBar.insertItem(kumula.getMenuBarIcon("kumula",1), self.menuProg, -1)

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should be equivalent to the following Qt method:

int insertItem ( const QPixmap & pixmap, QPopupMenu * popup, int id = -1, int index = -1 )

int insertItem ( const QPixmap & pixmap, QPopupMenu * popup, int id = -1, int index = -1 )

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What did I wrong? Or is it a PyQt issue?

And what could be the reason for the not-interpreted HTML tags in the QMessageBox?
Curious, things that should be visible are not, and vice versa...

Anyway, thank you for testing!

[jacek]

What did I wrong? Or is it a PyQt issue?

This might be a Qt bug similar to this one: http://www.trolltech.com/developer/t...entry&id=82181

And what could be the reason for the not-interpreted HTML tags in the QMessageBox?

I don't know, but it works on my system.

Are you sure that you have exactly the same version of Qt on both Gentoo systems?

[Kumula]

Yep, both have "qt-3.3.5" installed. The only difference are some
qt-unrelated USE variables, like "xinerama" or "cups".

But I wonder why it doesn't work on binary distributions like SUSE.
In the meanwhile I tried it on a Kubuntu machine, and there the icon is invisible, too.

Maybe I'm calling the wrong PyQt method? Or PyQt is calling the wrong Qt method?
Or the right method with wrong parameters? I don't have a clue...

[jacek]

Yep, both have "qt-3.3.5" installed. The only difference are some
qt-unrelated USE variables, like "xinerama" or "cups".

Maybe there were some patches applied to one of those versions?

[Kumula]

That's improbable, because Gentoo would increase
the version number like "qt-3.3.5-r1". Additionally,
my workstation is nearly a fresh install (with no
Qt update since them), so everything should be working...

But... what's the correct Qt behaviour?
In my opinion, the icon should be visible everywhere,
and the visible icon on my notebook shouldn't be the exception.

Is it possible for you to do this in a little C++ program?
Maybe we can narrow down the error to Qt or PyQt...
(I don't have so much C++ experience at all)

[jacek]

Is it possible for you to do this in a little C++ program?
Maybe we can narrow down the error to Qt or PyQt...

#include <qapplication.h>
#include <qiconset.h>
#include <qmainwindow.h>
#include <qmenubar.h>
#include <qpixmap.h>
 
int main( int argc, char **argv )
{
   QApplication app( argc, argv );
 
   QPixmap icon( "m_kumula.png" );
   qWarning( "icon.isNull == %d", icon.isNull() );
 
   QMainWindow mw;
   QMenuBar *menuBar = mw.menuBar();
 
   menuBar->insertItem( icon );
   menuBar->insertItem( QIconSet( icon ), icon );
   menuBar->insertItem( QIconSet( icon, QIconSet::Small ), icon );
   menuBar->insertItem( QIconSet( icon, QIconSet::Large ), icon );
   menuBar->insertItem( QIconSet( icon ), "test" );
 
   app.setMainWidget( &mw );
   mw.show();
 
   return app.exec();
}

#include <qapplication.h>
#include <qiconset.h>
#include <qmainwindow.h>
#include <qmenubar.h>
#include <qpixmap.h>

int main( int argc, char **argv )
{
   QApplication app( argc, argv );

   QPixmap icon( "m_kumula.png" );
   qWarning( "icon.isNull == %d", icon.isNull() );

   QMainWindow mw;
   QMenuBar *menuBar = mw.menuBar();

   menuBar->insertItem( icon );
   menuBar->insertItem( QIconSet( icon ), icon );
   menuBar->insertItem( QIconSet( icon, QIconSet::Small ), icon );
   menuBar->insertItem( QIconSet( icon, QIconSet::Large ), icon );
   menuBar->insertItem( QIconSet( icon ), "test" );

   app.setMainWidget( &mw );
   mw.show();

   return app.exec();
}

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I guess it's Qt bug.

[Kumula]

Sorry for re-activating this thread after a long time, but I guess the problem is solved. I happened to try different widget styles, and with some of them the error occurs (pixmap is invisible), and with other styles the pixmap is shown correctly.

Some widget styles known to draw pixmaps in the menubar:
Keramik, Active Heart, ThinKeramik, Phase

Some widget styles known to NOT supporting this:
Plastik, Baghira, .NET

Hope this helps anyone someday.

Greets,
Juergen