Qt-interest Archive, June 2007
programatically hiding, showing and manipulating widget sizes
Message 1 in thread
Hi,
I have a problem in my application that I hope somebody here can help me
with. Thanks in advance. This is my first post on the list, sorry if
this was already answered.
In my application I am programatically hiding and showing widgets in a
dialog. After the hide (or show) I need to know how the layout left the
sizes of all the widgets in the dialog.
Querying for size() after a hide() or show() doesn't work. That is, I
found, because hide() and show() operations need several Message Loop
iterations.
Doing it after hideEvent() or showEvent() are called didn't work it
either. It seems (but I am not sure) that those might be invoked before
all the widgets get resized.
Right now I am inserting
QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
but I don't like it because it makes my methods reentrant and they are
not. And sometimes I found out that I need more than 1 call to
processEvents (even weirder).
I really, really, really appreciate some help regards this. I would like
much to know the Qt's legal way of doing what I need to (programatically
hiding, showing and manipulating widget sizes).
Thanks a lot.
--
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Message 2 in thread
> I really, really, really appreciate some help regards this. I would
like
> much to know the Qt's legal way of doing what I need to
(programatically
> hiding, showing and manipulating widget sizes).
Hi,
May i ask why are you manipulating widget sizes? This sounds very much
like you are doing something that Qt should do for you. Aren't you using
any layouts?
Cheers,
Peter
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Message 3 in thread
Please reply to the list, not to me in private.
You can give the other widgets fixed sizes with QWidget::setFixedSize.
also tell the layout of your main window to adjust sizes:
layout()->setSizeConstraint(QLayout::SetMinAndMaxSize);
now your main window should grow and shrink as needed.
Cheers,
Peter
> -----Original Message-----
> From: Hernan Tylim [mailto:htylim@xxxxxxxxxxxx]
> Sent: Wednesday, June 06, 2007 8:12 PM
> To: Peter Prade
> Subject: Re: programatically hiding, showing and manipulating widget
sizes
>
> Hi. Like for example to adjust the window size after an inner widget
> dissapear so the other widgets will keep their same size.
>
> Thanks
>
>
> Peter Prade wrote:
> >> I really, really, really appreciate some help regards this. I would
> > like
> >> much to know the Qt's legal way of doing what I need to
> > (programatically
> >> hiding, showing and manipulating widget sizes).
> >
> > Hi,
> > May i ask why are you manipulating widget sizes? This sounds very
much
> > like you are doing something that Qt should do for you. Aren't you
using
> > any layouts?
> >
> > Cheers,
> > Peter
> >
> > --
> > To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx
with
> "unsubscribe" in the subject or the body.
> > List archive and information:
http://lists.trolltech.com/qt-interest/
> >
> >
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Message 4 in thread
Thanks, I didn't realize that I was replying to you privately.
I will try what you said.
Thanks again.
Regards,
Hernán
Peter Prade wrote:
> Please reply to the list, not to me in private.
>
> You can give the other widgets fixed sizes with QWidget::setFixedSize.
>
> also tell the layout of your main window to adjust sizes:
>
> layout()->setSizeConstraint(QLayout::SetMinAndMaxSize);
>
> now your main window should grow and shrink as needed.
>
> Cheers,
> Peter
>
>> -----Original Message-----
>> From: Hernan Tylim [mailto:htylim@xxxxxxxxxxxx]
>> Sent: Wednesday, June 06, 2007 8:12 PM
>> To: Peter Prade
>> Subject: Re: programatically hiding, showing and manipulating widget
> sizes
>> Hi. Like for example to adjust the window size after an inner widget
>> dissapear so the other widgets will keep their same size.
>>
>> Thanks
>>
>>
>> Peter Prade wrote:
>>>> I really, really, really appreciate some help regards this. I would
>>> like
>>>> much to know the Qt's legal way of doing what I need to
>>> (programatically
>>>> hiding, showing and manipulating widget sizes).
>>> Hi,
>>> May i ask why are you manipulating widget sizes? This sounds very
> much
>>> like you are doing something that Qt should do for you. Aren't you
> using
>>> any layouts?
>>>
>>> Cheers,
>>> Peter
>>>
>>> --
>>> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx
> with
>> "unsubscribe" in the subject or the body.
>>> List archive and information:
> http://lists.trolltech.com/qt-interest/
>>>
>
> --
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the subject or the body.
> List archive and information: http://lists.trolltech.com/qt-interest/
>
>
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