PyQt - multiple window instances?

[gregarican]

I have an PyQt app were I need one of the windows to be able to be
opened more than one at a time. When I try to open it I only get one
instance at the same time. The main class is the QWidget() class with a
QGridLayout() displaying the various window components.

Is there a certain flag I need to set or different constructor I need
to use to allow the window to be opened more than one at a time?

Here's a brief snippet of the code that displays the window:

def new_showing(sel f):
""" This method creates a new contact showing record. """

if self.flag == 'KNOWN':
try:
test_contact = self.entry_id
except:
QMessageBox.war ning(self, "Qt CRAM", "There is no
contact record loaded.\nPlease select a contact record first.")
return

self.new_show_w idget=QWidget()
self.new_show_w idget.resize(24 0, 280)
self.new_show_w idget.setCaptio n('Qt CRAM - Contact Showings')

# Define the Qt layout to be used for the window.
self.new_show_g rid=QGridLayout (self.new_show_ widget, 8, 2)

# bunch of widgets displaying stuff

self.new_show_w idget.show()

[Diez B. Roggisch]

Re: PyQt - multiple window instances?

gregarican schrieb:[color=blue]
> I have an PyQt app were I need one of the windows to be able to be
> opened more than one at a time. When I try to open it I only get one
> instance at the same time. The main class is the QWidget() class with a
> QGridLayout() displaying the various window components.
>
> Is there a certain flag I need to set or different constructor I need
> to use to allow the window to be opened more than one at a time?[/color]

No. Must be something you're doing - I guess it might be that you should keep a reference to the old windows, otherwise
they might go away when garbage-collected.

Diez

[gregarican]

Re: PyQt - multiple window instances?

The window isn't being created as a new class instance or anything. The
main class is the application main window as a whole and this
particular window is just part of that class. I have typed data into
the window, then tried to open up a new window. But when I do the
window where I have typed data disappears and is replaced by a new
window that's blank. What's the easiest way to keep a reference to the
old window?

[Diez B. Roggisch]

Re: PyQt - multiple window instances?

gregarican schrieb:[color=blue]
> The window isn't being created as a new class instance or anything.[/color]

Yes it is. QWidget() creates a new instance of QWidget.
[color=blue]
> The
> main class is the application main window as a whole and this
> particular window is just part of that class. I have typed data into
> the window, then tried to open up a new window. But when I do the
> window where I have typed data disappears and is replaced by a new
> window that's blank. What's the easiest way to keep a reference to the
> old window?[/color]

By putting it into a list for example?


Diez

[gregarican]

Re: PyQt - multiple window instances?

Diez B. Roggisch wrote:
[color=blue][color=green]
> > The window isn't being created as a new class instance or anything.[/color]
>
>
> Yes it is. QWidget() creates a new instance of QWidget.
>[color=green]
> > The[/color]
>
>
>[color=green]
> > main class is the application main window as a whole and this
> > particular window is just part of that class. I have typed data into
> > the window, then tried to open up a new window. But when I do the
> > window where I have typed data disappears and is replaced by a new
> > window that's blank. What's the easiest way to keep a reference to the
> > old window?[/color]
>
>
> By putting it into a list for example?
>
> Diez[/color]

Perfect! Thanks for the tip. That worked perfectly.