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List: kde-pim
Subject: Re: [Kde-pim] D-Pointer problem
From: Ingo =?iso-8859-15?q?Kl=F6cker?= <kloecker () kde ! org>
Date: 2008-05-31 21:44:56
Message-ID: 200805312345.04900 () erwin ! ingo-kloecker ! de
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On Saturday 31 May 2008, Tom Albers wrote:
> Hi,
>
> I've added d-pointers for two classes in kpimidentities, but i can
> not get it to work properly. The stuff compiles ok, but as soon as i
> open the config from mailody it crashes in the identititymanager.
>
> If i revert the patch for the signature files, it won't crash. This
> is all with recompilation of mailody in between. I've spent some
> hours in trying to fix it, but I failed.
>
> Maybe someone with 'fresh' eyes, is willing to try the patch, see if
> it crashes too and if so spot the error I made.
>
> Diff is attached, please note that 'patch' did not make a very
> readable diff this time.
One thing I noticed is that you have (accidentally) moved the
initialization of mReadOnly after readConfig().
- mReadOnly = readonly;
mConfig = new KConfig( "emailidentities" );
- readConfig( mConfig );
+ d->readConfig( mConfig );
+ d->readOnly = readonly;
Another thing that might cause problems is that the virtual method
IdentityManager::createDefaultIdentity() is called (indirectly via
IdentityManager::Private::createDefaultIdentity()) in the c'tor
IdentityManager::IdentityManager(). This will not work as expected
because by the time IdentityManager::IdentityManager() is executed a
subclass derived from IdentityManager will not yet have been fully
initialized. But since d->createDefaultIdentity() is called after
d->readConfig( mConfig ) this does not explain the crash.
I suggest to move mIdentities and mShadowIdentities also to
IdentityManager::Private. And why is mConfig not in Private? If you
want to use pimpl then please don't do it half-heartedly.
The following code snippet is really ugly (which isn't your fault):
q->mIdentities << Identity();
q->mIdentities.last().readConfig( configGroup );
if ( !haveDefault && q->mIdentities.last().uoid() ==
defaultIdentity ) {
haveDefault = true;
q->mIdentities.last().setIsDefault( true );
}
Instead of using QList::last() all the time I'd use a temporary
variable:
Identity identity;
identity.readConfig( configGroup );
if ( !haveDefault && identity.uoid() == defaultIdentity ) {
haveDefault = true;
identity.setIsDefault( true );
}
q->mIdentities << identity;
Regards,
Ingo
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