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wxDesigner: Strange Limitation

DeMarco, Paul

David Elliott

From:	DeMarco, Paul
Subject:	wxDesigner: Strange Limitation
Date:	Wed, 19 Jan 2005 19:58:09 +0000 (UTC)

Is there some reason in wxDesigner that I cannot choose for a =
wxTextCtrl:

Alignment->Expand Horizontally

AND

Alignment->Center Vertically

This is a really annoying problem because I want to take advantage of =
the space left to right, but not in height because it makes the control =
look awkward.

It seems that there may be some bug that has to do with this allignment =
stuff because sometimes I see Center Horizontally and Expand =
Horizontally checked at the same time. --> seems illogical.

I have tested on Windows and Linux both are the same.

Version 2.10b

Thanks,

-- Paul

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From:	David Elliott
Subject:	Re: wxDesigner: Strange Limitation
Date:	Wed, 19 Jan 2005 20:39:34 +0000 (UTC)

On Jan 19, 2005, at 2:57 PM, DeMarco, Paul wrote:

> Is there some reason in wxDesigner that I cannot choose for a
> wxTextCtrl:
>
> Alignment->Expand Horizontally
>
> AND
>
> Alignment->Center Vertically
>
Read the wxSizer documentation and you'll realize that this isn't
possible. These aren't springs and struts (or constraints if you
prefer to call them that) but sizers. They work differently.

> This is a really annoying problem because I want to take advantage of
> the space left to right, but not in height because it makes the
> control look awkward.
>
> It seems that there may be some bug that has to do with this
> allignment stuff because sometimes I see Center Horizontally and
> Expand Horizontally checked at the same time. --> seems illogical.
>
No idea why both of these are allowed, indeed they are mutually
exclusive AFAIK.

> I have tested on Windows and Linux both are the same.
>
Of course, the sizer code is common between all platforms.

What you need to do is insert another sizer into your hierarchy such
that you can tell the main sizer to grow the child sizer to take all
available space both horizontally and vertically then tell the child
sizer (which should be a vertical sizer) to add a space with portion of
x (typically 1), the real text control with portion of 0 (so it doesn't
grow) and another space with portion of x (must be same as first,
typically 1).

In this manner the sizer will not change the vertical size of the text
control (as it has a portion of 0) but will change the sizes of both
spacers above and below the text control such that the text control is
effectively centered within this vertical sizer.

-Dave

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