[PyQt] best practices for MDI app

[Lic. José M. Rodriguez Bacallao]

how to view different windows at the same time using dock widgets?
We are developing a medical image viewer and we need to have the
possibility of viewing several images(series) at the same time. We
have tried MdiAre but it doesn't work nicely with vtk and I don't like
tab widgets.

On Wed, Jul 14, 2010 at 5:22 AM, Mark Summerfield <list at qtrac.plus.com> wrote:
> On 2010-07-13, Danny Shevitz wrote:
>> Howdy,
>>
>> I'm a newbie and struggling with developing an MDI app. The basic question
>> is this: each of my documents
>>
>> looks and acts like a dialog.  When I create my child class, should I
>> subclass QDialog or QWidget?
>>
>> I am currently using QDialog and add a QDialogButtonBox at the bottom.
> This
>> doesn't work as expected.
>>
>> When I click close, the MDI child blanks but doesn't disappear. It is as
> if
>> the QDialog is closing itself,
>>
>> but the MDI page still exists fine. If I subclass QWidget, then do I need
>> to reimplement all the button functionality?
>
> QDialog should only be used for dialogs (i.e., top-level windows). Use
> QWidget for MDI windows. Or better still use the new MDI classes:
> QMdiArea instead of QWorkspace and subclass QMdiSubWindow for the
> MDI windows themselves.
>
> Be aware that MDI has been out of fashion for several years so many
> people frown upon its use. The fashionable way to do things is to use a
> tab widget (which is utterly useless if you want to see two or more
> documents at the same time of course) and dock windows. If you need two
> or more windows visible and want to be fashionable then you can either
> use SDI (multiple top-level main windows -- which duplicate their menus
> and toolbars etc. of course) or use splitters.
>
> PS When you "close" a QDialog by default it is hidden not deleted.
>
> --
> Mark Summerfield, Qtrac Ltd, www.qtrac.eu
>    C++, Python, Qt, PyQt - training and consultancy
>        "Advanced Qt Programming" - ISBN 0321635906
>            http://www.qtrac.eu/aqpbook.html
> _______________________________________________
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>



-- 
Lic. José M. Rodriguez Bacallao
Centro de Biofisica Medica
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