[Kde-pim] Using an EntityMimeTypeFilterModel to show Items only

[Marcus Harrison]

On Sunday 26 Aug 2012 01:46:22 Dan Vratil wrote:
> On Saturday 25 of August 2012 23:51:21 Marcus Harrison wrote:
> > Hello everyone,
> 
> Hi,
> 
> > I've started writing an E-mail client using Akonadi and I'm having
> > trouble.
> > I'm trying to configure a model that only contains E-mail items, not
> > collections.
> > To do this, I'm trying to use an EntityMimeTypeFilterModel on top of an
> > EntityTreeModel, but it's behaving very oddly.
> > 
> > If I don't configure it at all, the documentation says it should have all
> > mimetypes in the include filters, but in practice it's only showing
> > Collections. It should show Items as well, shouldn't it?
> > 
> > Anyway, adding an inclusion filter of "message/rfc822" filters the
> > Collections out, but because it's not including any Items anyway it then
> > just displays nothing.
> > 
> > Can anyone explain just what's going on, please?
> 
> I remember fighting this problem for quite a while when I was writing an RSS
> reader.
> 
> Check
> http://gitorious.org/kgooglereader/kgooglereader/blobs/master/part/readervie
> w.cpp#line245
> 
> maybe it will help :) The usecase is slightly different then what you
> describe here, but the main idea is the same.
> 
> > A paste of my test code so far:
> > 
> > 
> > MainWindow::MainWindow()
> > {
> > 
> >     foldersDock = new FoldersDock(this); // Some other configured widget
> >     
> >     changeRecorder = new Akonadi::ChangeRecorder(this);
> >     changeRecorder->setCollectionMonitored(Akonadi::Collection::root());
> 
> Specifically, adding
> 
> changeRecorder->setMimeTypeMonitored("message/rfc822");
> 
> might solve your problem.
> 
> >     model = new Akonadi::EntityTreeModel(changeRecorder, this);
> >     mailsModel = new Akonadi::EntityMimeTypeFilterModel(this);
> >     mailsModel->setSourceModel(model);
> >     mailsModel->addMimeTypeInclusionFilter("message/rfc822");
> >     
> >     mailsView = new Akonadi::EntityTreeView(this, this);
> >     mailsView->setModel(mailsModel);
> >     
> >     connect(foldersDock, SIGNAL(currentChanged(Akonadi::Collection)),
> >     
> >             this, SLOT(currentChanged(Akonadi::Collection)));
> >     
> >     addDockWidget(Qt::LeftDockWidgetArea, foldersDock);
> >     setCentralWidget(mailsView);
> >     setupGUI();
> > 
> > }
> 
> Hope it helps,
> 
> Cheers

Thanks for the advice. I had tried this before, but the filtermodel still 
seems to be broken for me for some inexplicable reason.

Marcus Harrison
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