[Kmon-devel] Track bug.

[Brett B. <br...@in...>]

Summary of what I am asking/observed:
Forgive me if I don't remember C++ very well.  But is it bad to have the 
variable name the same name as a variable passed to the method.  In PHP I 
think it would just reassign it but I wasn't sure that was okay in C++.  
void MainWindowImpl::showPopup(QListViewItem *item, const QPoint& p , int i) {
   if (item) {
     KMonListViewItem* item = dynamic_cast<KMonListViewItem*>(item);
     item->showPopup(p);
   }
}

I changed it to this and it seems to be working better:
void MainWindowImpl::showPopup(QListViewItem *item, const QPoint& p , int i) {
   if (item) {
     KMonListViewItem* myitem = dynamic_cast<KMonListViewItem*>(item);
     myitem->showPopup(p);
   }
}

It still wont work but seems to be crashing somewhere else now. 


When I changed the name of the KMonListViewItem* from item to myitem (line 
numbers 189,190) in mainwindowimpl.cpp I was able to prevent crashes at the 
_node->showPopupMenu( p ) in kmonnotifierlistviewitem.cpp  But now I get them 
at KMonNode::showPopupMenu (QPoint const&) on kmonnode.cpp:144.  (see 
backtrace)  Is it really getting futher?

[New Thread 1024 (LWP 13193)]
0x41131909 in wait4 () from /lib/libc.so.6
#0  0x41131909 in wait4 () from /lib/libc.so.6
#1  0x411b59e4 in __DTOR_END__ () from /lib/libc.so.6
#2  0x410630b3 in waitpid () from /lib/libpthread.so.0
#3  0x406a748e in KCrash::defaultCrashHandler(int) ()
   from /usr/kde/3.1/lib/libkdecore.so.4
#4  0x41060e1b in pthread_sighandler () from /lib/libpthread.so.0
#5  <signal handler called>
#6  0x40bf3076 in QMenuData::clear() () from /usr/qt/3/lib/libqt-mt.so.3
#7  0x08055794 in KMonNode::showPopupMenu(QPoint const&) (this=0x8115d10, 
    p=@0xfffffe00) at kmonnode.cpp:144
#8  0x080543e9 in KMonListViewItem::showPopup(QPoint const&) (this=0xfffffe00, 
    p=@0xfffffe00) at kmonnotifierlistviewitem.cpp:36

So I thought I would comment out the _popupMenu->clear(); just to see where it 
would get me. (line 144 in KMonNode)  

[New Thread 1024 (LWP 15595)]
0x41131909 in wait4 () from /lib/libc.so.6
#0  0x41131909 in wait4 () from /lib/libc.so.6
#1  0x411b59e4 in __DTOR_END__ () from /lib/libc.so.6
#2  0x410630b3 in waitpid () from /lib/libpthread.so.0
#3  0x406a748e in KCrash::defaultCrashHandler(int) ()
   from /usr/kde/3.1/lib/libkdecore.so.4
#4  0x41060e1b in pthread_sighandler () from /lib/libpthread.so.0
#5  <signal handler called>
#6  0x40bf25f8 in QMenuData::insertAny(QString const*, QPixmap const*, 
QPopupMenu*, QIconSet const*, int, int, QWidget*, QCustomMenuItem*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#7  0x40bf2792 in QMenuData::insertItem(QString const&, QObject const*, char 
const*, QKeySequence const&, int, int) () from /usr/qt/3/lib/libqt-mt.so.3
#8  0x080557f5 in KMonNode::showPopupMenu(QPoint const&) (this=0x8116c70, 
    p=@0xfffffe00) at kmonnode.cpp:147
#9  0x080543e9 in KMonListViewItem::showPopup(QPoint const&) (this=0xfffffe00, 
    p=@0xfffffe00) at kmonnotifierlistviewitem.cpp:36

It just got me to the next line it uses _popupMenu

Patrik, I CC'd you just incase the mailing list still wont let me send.