[PyQt] connection to list view and combo pyqt

[Peter Liedler]

I am still fighting to get connected to a selectionChanged signal of a
listView.
If I understand the qt documentation, the QItemSelection is generated
automatically by filling the index to the model and defining the model
to the list.

I think I do so by:

Defining the model class:

class myListModel(QAbstractListModel): 
    def __init__(self, datain, parent=None, *args): 
        """ datain: a list where each item is a row
        """
        QAbstractTableModel.__init__(self, parent, *args) 
        self.listdata = datain
 
In the main view I call a subfunction to set the index to the model:


	self.listModel = myListModel(TitleTrack, self)
		
	#init listView
	self.listViewTitleFill()

Where TitleTrack is a python list.


    def listViewTitleFill(self):
	""" init ListViews and build list models """
	self.listModel = myListModel(TitleTrack, self)
	self.listViewTitle.setModel(self.listModel)
	self.listViewTitle.setSelectionMode(QAbstractItemView.SingleSelection)


This part works fine. The list is filled and I can select items in
there. 

	self.connect(self.listViewTitle,
SIGNAL("selectionChanged(QItemSelection, QItemSelection)"),
self.titleSelected)

With this connect string I try to connect to the signal that is emitted
when the selection is changed. But it is never called.
What am I missing here.

Thanks

Peter

On Son, 2008-01-20 at 01:26 +0100, David Boddie wrote:
> On Sat Jan 19 13:41:12 GMT 2008, Peter Liedler wrote:
> 
> > In my main view I have several connect strings to buttons and
> > checkBoxes. They work fine.
> > 
> >         self.connect(self.checkBoxRipLongest, SIGNAL("clicked()"),
> > self.toggleRipLongest)
> >         self.connect(self.listViewTitle, SIGNAL("selectionChanged()"),
> > self.titleSelected)
> >         self.connect(self.comboBoxLanguage, SIGNAL("currentIndexChanged()"),
> > self.languageSelected)
> 
> Are you sure they all work? The problem below would make me suspicious that
> the third one wouldn't work.
> 
> > But the connection string to a QComboBox and a QListView do not work.
> > What am I doing wrong here?
> > 
> >         self.connect(self.listViewTitle, SIGNAL("selectionChanged()"),
> > self.titleSelected)
> >         self.connect(self.comboBoxLanguage, SIGNAL("currentIndexChanged()"),
> > self.languageSelected)
> > 
> > I want to call the self.titleSelected function when another index in the
> > list is filled, but obviously the signal is never emitted. (I have put a
> > print statement there). Same with the comboBox.
> 
> You need to include the argument types in the signal declaration. For
> example, currentIndexChanged() is actually available in two forms:
> 
>   currentIndexChanged(int)
>   currentIndexChanged(const QString&)
> 
> I believe you can simplify the second form to
> 
>   currentIndexChanged(QString)
> 
> if that's the one you want.
> 
> Which class provides the selectionChanged() signal?
> 
> > Please forgive me to ask such a simple question.
> 
> That's what we're here for!
> 
> David
> 
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