[Qt-jambi-interest] QComboBox + signals

[Florian Hübner]

Thanks for the hints, I still have some problems with the connect method 
though:

**************************************************************************
searchComboBox_.setEditText(tr("Enter search expression..."));
searchComboBox_.setFocusPolicy(FocusPolicy.StrongFocus);
QFocusEvent fevent = new QFocusEvent(QEvent.Type.FocusIn); 
searchComboBox_.focusInEvent(fevent).connect(this,"clearSearchBox()");

  public Signal0 mySig = new Signal0();
     class myQComboBox extends QComboBox{

         public myQComboBox(QWidget widget) {
             super(widget);
         }

         protected void focusInEvent(QFocusEvent arg__1){
             mySig.emit();
             super.focusInEvent(arg__1);
         }
     }
**************************************************************************

Eclipse complains in line 4:
"Cannot invoke connect(MainWindow, String) on the primitive type void"
but I don't know what what the return value of focusInEvent should be 
instead.
I am also unsure about the mySig.emit part.



best regards
Florian



Curt Nowak wrote:
> Sorry about those links in my last mail. (Copy&Paste mistake)
> Also, don't forget to set the focusPolicy of your ComboBox correctly. (See Qt.FocusPolicy)
> 
> ________________________________
> 
> Von: qt-jambi-interest-bounces at trolltech.com im Auftrag von Curt Nowak
> Gesendet: Di 19.08.2008 12:34
> An: qt-jambi-interest at trolltech.com
> Betreff: Re: [Qt-jambi-interest] QComboBox + signals
> 
> 
> 
> Hi Florian,
> 
> the first idea that pops into my head is to
> 
> 
> *       subclass QComboBox and to
> *       overwrite protected void focusInEvent(QFocusEvent <file:///D:/java/qt/qtjambi-win32-gpl-4.4.0_01/doc/html/com/trolltech/qt/gui/QFocusEvent.html>  arg__1)
> 
> into something like
> 
> protected void focusInEvent(QFocusEvent <file:///D:/java/qt/qtjambi-win32-gpl-4.4.0_01/doc/html/com/trolltech/qt/gui/QFocusEvent.html>  arg__1){
>         mySignal.emit(...);
>         super.focusInEvent(QFocusEvent <file:///D:/java/qt/qtjambi-win32-gpl-4.4.0_01/doc/html/com/trolltech/qt/gui/QFocusEvent.html>  arg__1);
> }
> 
> That should do. Cheers,
> 
> Curt
> 
> ________________________________
> 
> Von: qt-jambi-interest-bounces at trolltech.com im Auftrag von Florian Hübner
> Gesendet: Di 19.08.2008 12:25
> An: qt-jambi-interest at trolltech.com
> Betreff: [Qt-jambi-interest] QComboBox + signals
> 
> 
> 
> Hi everyone,
> I try to send a signal whenever a QComboBox receives focus but I
> couldn't find out how to do it. Anybody know an easy way for that?
> 
> best regards
> Florian
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