[PyQt] help with dip and PyQt4 widgets

[Lic. José M. Rodriguez Bacallao]

I tried that before and still getting the same error. I thinks is
something like the C++ part of the widget is not created at the time
when the properties methods are called to set my initial values as
this  happen before __init__ is called.

On Fri, Jul 8, 2011 at 12:05 PM, Demetrius Cassidy <dcassidy36 at gmail.com> wrote:
> You need to call QToolButton's __init__() method.
>
> class Indicator(QtGui.QToolButton, Model):
>     def __init__(self)
>        super(Indicator, self).__init__()
> On Fri, Jul 8, 2011 at 1:49 PM, Lic. José M. Rodriguez Bacallao
> <jmrbcu at gmail.com> wrote:
>>
>> hi folks, I am creating a composite widget with PyQt4 and Dip, the
>> problem I have is that when I use dip properties for setting PyQt4
>> properties in the constructor I am getting an error saying that the
>> underlying C++ object has been delete, I think this is due to the way
>> dip works because it call properties methods before the actual Qt4
>> widget as been created when I pass an initial value in the
>> constructor. When I construct the object with properties initial
>> values and the use the properties accesors to set the value, this
>> doens't happen. So, my question is, which is the right way to
>> construct a custom composite widget with dip?
>>
>> # dip imports
>> from dip.model import Model, Instance, Str
>>
>> # PyQt4 imports
>> from PyQt4 import QtCore, QtGui
>>
>> class Indicator(QtGui.QToolButton, Model):
>>
>>    # the indicator identifier, it must be unique for all indicators
>>    id = Str()
>>
>>    # the indicator text, this text will be shown
>>    # beside the icon if one is defined
>>    text = Str()
>>
>>    # the indicator tooltip
>>    tooltip = Str()
>>
>>    # the indicator icon
>>    icon = Instance(QtGui.QIcon)
>>
>>    @id.getter
>>    def id(self):
>>        print 'getting value'
>>        return self.objectName()
>>
>>    @id.setter
>>    def id(self, id):
>>        print 'setting value'
>>        self.setObjectName(id)
>>
>>    @text.getter
>>    def text(self):
>>        return self.text()
>>
>>    @text.setter
>>    def text(self, text):
>>        self.setText(text)
>>
>>    @tooltip.getter
>>    def tooltip(self):
>>        return self.toolTip()
>>
>>    @tooltip.setter
>>    def tooltip(self, tooltip):
>>        self.setToolTip(tooltip)
>>
>>    @icon.getter
>>    def icon(self):
>>        return self.icon()
>>
>>    @icon.setter
>>    def icon(self, icon):
>>        self.icon = icon
>>
>>    def perform(self):
>>        raise NotImplementedError
>>
>> if __name__ == '__main__':
>>    app = QtGui.QApplication([])
>>
>>    i = Indicator(text='xxx')
>>    i.show()
>>
>>    app.exec_()
>>
>> --
>> Lic. José M. Rodriguez Bacallao
>> Centro de Biofisica Medica
>> -----------------------------------------------------------------
>> Todos somos muy ignorantes, lo que ocurre es que no todos ignoramos lo
>> mismo.
>>
>> Recuerda: El arca de Noe fue construida por aficionados, el titanic
>> por profesionales
>> -----------------------------------------------------------------
>> _______________________________________________
>> PyQt mailing list    PyQt at riverbankcomputing.com
>> http://www.riverbankcomputing.com/mailman/listinfo/pyqt
>



-- 
Lic. José M. Rodriguez Bacallao
Centro de Biofisica Medica
-----------------------------------------------------------------
Todos somos muy ignorantes, lo que ocurre es que no todos ignoramos lo mismo.

Recuerda: El arca de Noe fue construida por aficionados, el titanic
por profesionales
-----------------------------------------------------------------