[Qt-jambi-interest] Error on connecting QCheckBox.toggled with QDialog.setVisible(boolean)

[Waldemar Wittmann]

Am Freitag, den 04.07.2008, 08:45 +0200 schrieb Eskil Abrahamsen
Blomfeldt:
> Curt Nowak wrote:
> > I'm trying to toggle the visibility of a QDialog 'dialog' when a QCheckBox 'checkBox' is toggled.
> > So I thought
> >  
> > <code>
> > checkBox.toggled.connect(dialog, "setVisible(boolean)");
> > </code>
> >  
> > would do the trick. But instead I get a com.trolltech.qt.QNoSuchSlotException.
> > Misteriously 
> >  
> > <code>
> > checkBox.toggled.connect(dialog, "setEnabled(boolean)");
> > </code>
> >  
> > works fine. What's up with that?
> >   
> 
> Hi, Curt.
> 
> This is a bug in the Qt Jambi generator. If the Generator sees a 
> function in a QObject subclass (such as QDialog) which is not set as a 
> slot in C++, and thus not intended to be a slot in the API, then it will 
> mark it with a @QtBlockedSlot annotation in Java. This means the method 
> will not be connectable and will not turn up in lists over available 
> slots in Designer etc. The bug your case has revealed is that when the 
> slot is virtual and is reimplemented in a subclass, then the Generator 
> will not realize that the new implementation is also considered a slot 
> in the original API.
> 
> QDialog reimplements setVisible() which causes this problem to occur in 
> your case.
> 
> Thanks for the report!
> 
> -- Eskil

Hi Eskil and all,

i think the same or a bit different problem is with QTreeView ->
setAnimated(boolean)

If I do (in the constructor) of an arbitrary Class with a reference
"view" on QTreeView: checkBox.toggled.connect(view,
"setAnimated(boolean)");

i get: Exception in thread "main" com.trolltech.qt.QNoSuchSlotException:
public final void com.trolltech.qt.gui.QTreeView.setAnimated(boolean)

I do simply:

checkBox.toggled.connect(this, "mySetAnimated(boolean)");
...
}

mySetAnimated(boolean b) {
view.setAnimated(b);
}

and it works ...

regards,
Waldemar