[Qgis-developer] Connecting composer closure with another window focus

[Vincent Damoy]

Thanks a lot Bernhard for your answer.
This was the solution!
Instead of

/        composerView = diffList[0]//
//        composition = self.composerView.composition()//
////composerView.composerViewHide.connect(self.operationOnTop)////
/
I tried

/*self.*composerView = diffList[0]//
//*self.*composition = *self.*composerView.composition()//
////*self.*composerView.composerViewHide.connect(self.operationOnTop)////
/

And now it works!! The signal is connected with the operationOnTop 
function, and my form comes back in front of the main QGIS window after 
the composer closure.
Thank you very much!
Best regards
Vincent

-- 

---------------------------

Vincent Damoy - Responsable SIG
Conservatoire d'Espaces Naturels du Nord et du Pas-de-Calais
152 bd de Paris - 62190 Lillers
Tél : 03.21.54.75.00 - Fax : 03.21.54.56.07
/*Pour adhérer au Conservatoire :* 
www.cen-npdc.org/nous-rejoindre/adherent.html/


Le 16/12/2013 15:17, Bernhard Ströbl a écrit :
> Hi,
>
> I often had the problem that connecting to a signal did not work, too. 
> My solution always was to make the object which throws the signal an 
> object of the class
> so instead of
> QgsComposerView....
> try
> self.QgsComposerView....
>
> I have no idea if this is generally true neither can did I investigate 
> why it worked in my cases
>
> Bernhard
>
> Am 16.12.2013 15:02, schrieb Vincent Damoy:
>> Hi all,
>>
>> I'm running QGIS 2.0.1 on Ubuntu 12.04, 64 bits (installed with
>> ubuntugis-unstable repository).
>>
>> I've created a form, which shows a composer when I click on a button.
>> This form stays active while the composer is showed, but is located
>> behind the QGIS main window.
>> I'd like it to come back in front of the screen when the composer is
>> closed by user.
>>
>> After several web searchs and tests, it seems that the following
>> function works :
>>
>> /def operationOnTop(self): //
>> //self.raise_() //
>> //self.activateWindow()/
>>
>> My problem is to connect a « composer closed » signal with this 
>> function.
>> I think the signal should be QgsComposerView.composerViewHide. I'm 
>> right ?
>>
>> * I tried to connect it with the above slot :
>>
>> /QgsComposerView.composerViewHide.connect(self.operationOnTop)/
>>
>> But QGIS returns :
>> AttributeError: 'PyQt4.QtCore.pyqtSignal' object has no attribute 
>> 'connect'
>> I can't understand this error message : all signals should have «
>> connect » attribute, right ?
>>
>> * Trying with the old « connect » way :
>>
>> /self.connect(QgsComposerView(), QtCore.SIGNAL('composerViewHide'),
>> self.operationOnTop)/
>>
>> My plugin doesn't crash during loading, but nothing happens when I close
>> the composer.
>> I've added « print 'operationOnTop' » to the end of the function, to
>> test its loading. Apparently, the signal is not catched, as I have no
>> return in the Python pannel.
>>
>> Can you see what I've missed in each case ?
>>
>> Any help would be greatly appreciated.
>> Kind regards
>>
>>
>> PS : I've tried to make the connection in the class constructor :
>>
>> /class OperationDialog(QtGui.QDialog): //
>> //def __init__(self, iface): //
>> //QtGui.QDialog.__init__(self) //
>> //self.ui = Ui_operation() //
>> //self.ui.setupUi(self) //
>> //self.iface = iface //
>> //self.canvas = self.iface.mapCanvas()//
>> //…//
>> //QgsComposerView.composerViewHide.connect(self.operationOnTop)//
>> ///
>> Should I put it in the function which creates the composer?
>>
>>
>>
>> -- 
>>
>> -- 
>>
>> ---------------------------
>>
>> Vincent Damoy - Responsable SIG
>> Conservatoire d'Espaces Naturels du Nord et du Pas-de-Calais
>> 152 bd de Paris - 62190 Lillers
>> Tél : 03.21.54.75.00 - Fax : 03.21.54.56.07
>> /*Pour adhérer au Conservatoire :*
>> www.cen-npdc.org/nous-rejoindre/adherent.html/
>>
>>
>>
>>     /Pour le respect de l'environnement, n'imprimez ce message qu'en 
>> cas de
>> nécessité !/
>>
>>
>>
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