'Re: [Kde-perl] Sub form issues.'

[prev in list] [next in list] [prev in thread] [next in thread] 

List: kde-perl
Subject: Re: [Kde-perl] Sub form issues.
From: Roy Souther <roy () SiliconTao ! com>
Date: 2005-06-02 16:33:25
Message-ID: 1117730005.18032.4.camel () UtopiaPlanetia
[Download RAW message or body]

[Attachment #2 (multipart/signed)]

[Attachment #4 (multipart/alternative)]

That solution works great, thanks.

The reason I don't create the sub form with the connection to the
parrent is because in Qt C++ doing so causes the sub form to be embedded
in the parent form rather then a new popup form like a dialog.

Is there a better way? Perl should clean up the garbage when it is
done. 
Is there a destructor for Object Perl? Like 
delete(this->{SubForm});

On Wed, 2005-06-01 at 20:14 -0700, Ashley Winters wrote:

> --- Roy Souther <roy@SiliconTao.com> wrote:
> 
> > Corrections to my message. I shortend the code to simplify it and did
> > not look at what I was typing.
> 
> Howdy Roy.
> 
> The problem is that the code "$SubForm1 = SubForm" when at the global
> scope in a module (anything like Foo.pm) is being run at *compile*
> time, before the Qt::Application is constructed. That's going to fail.
> 
> If you want to store the variable inside your 'this' object as a
> private variable, you could use this->{SubForm}
> 
> sub NEW {
>     ...
>     this->{SubForm} = SubForm;
>     ...
> }
> 
> sub OnWhatever {
>     ...
>     this->{Subform}->show;
>     ...
> }
> 
> My concern there would be that you're not passing a parent object to
> SubForm. Normally, you construct subwindows using Widget(this) so that
> when the 'this' window is closed, all its child windows (including that
> Widget) get closed as well.
> 
> Qt tries to take care of closing windows for you, but if you have
> reasons to do otherwise, just make sure it's taken care of.
> 
> Good luck!
> 
> Ashley Winters
> 
> 
> 
> 		
> __________________________________ 
> Discover Yahoo! 
> Find restaurants, movies, travel and more fun for the weekend. Check it out! 
> http://discover.yahoo.com/weekend.html 
> 
> _______________________________________________
> Kde-perl mailing list
> Kde-perl@kde.org
> https://mail.kde.org/mailman/listinfo/kde-perl
> 

Roy Souther
www.SiliconTao.com
Let Open Source help your business move beyond.

For security this message is digitally authenticated by GnuPG.

[Attachment #7 (text/html)]

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 TRANSITIONAL//EN">
<HTML>
<HEAD>
 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=UTF-8">
 <META NAME="GENERATOR" CONTENT="GtkHTML/3.2.2">
</HEAD>
<BODY>
That solution works great, thanks. 
 
The reason I don't create the sub form with the connection to the parrent is because \
in Qt C++ doing so causes the sub form to be embedded in the parent form rather then \
a new popup form like a dialog. 
Is there a better way? Perl should clean up the garbage when it is done. 
Is there a destructor for Object Perl? Like 
delete(this-&gt;{SubForm}); 
 
 
On Wed, 2005-06-01 at 20:14 -0700, Ashley Winters wrote:
<BLOCKQUOTE TYPE=CITE>
<PRE>
--- Roy Souther &lt;<A \
HREF="mailto:roy@SiliconTao.com">roy@SiliconTao.com</A>&gt; wrote:

&gt; Corrections to my message. I shortend the code to simplify \
it and did &gt; not look at what I was typing.

<FONT COLOR="#000000">Howdy Roy.</FONT>

The problem is that the code &quot;$SubForm1 = SubForm&quot; \
when at the global scope in a module (anything like \
Foo.pm) is being run at *compile* time, before the \
Qt::Application is constructed. That's going to fail.

<FONT COLOR="#000000">If you want to store the variable inside your 'this' object as \
a</FONT> <FONT COLOR="#000000">private variable, you could use \
this-&gt;{SubForm}</FONT>

<FONT COLOR="#000000">sub NEW {</FONT>
<FONT COLOR="#000000">    ...</FONT>
<FONT COLOR="#000000">    this-&gt;{SubForm} = SubForm;</FONT>
<FONT COLOR="#000000">    ...</FONT>
<FONT COLOR="#000000">}</FONT>

<FONT COLOR="#000000">sub OnWhatever {</FONT>
<FONT COLOR="#000000">    ...</FONT>
<FONT COLOR="#000000">    this-&gt;{Subform}-&gt;show;</FONT>
<FONT COLOR="#000000">    ...</FONT>
<FONT COLOR="#000000">}</FONT>

My concern there would be that you're not passing a parent \
object to SubForm. Normally, you construct subwindows \
using Widget(this) so that when the 'this' window is \
closed, all its child windows (including that Widget) \
get closed as well.

<FONT COLOR="#000000">Qt tries to take care of closing windows for you, but if you \
have</FONT> <FONT COLOR="#000000">reasons to do otherwise, just make sure it's taken \
care of.</FONT>

<FONT COLOR="#000000">Good luck!</FONT>

<FONT COLOR="#000000">Ashley Winters</FONT>

__________________________________ 
Discover Yahoo! 
Find restaurants, movies, travel and more fun for the weekend. \
Check it out! <A \
HREF="http://discover.yahoo.com/weekend.html">http://discover.yahoo.com/weekend.html</A> \

<FONT COLOR="#000000">_______________________________________________</FONT>
<FONT COLOR="#000000">Kde-perl mailing list</FONT>
<FONT COLOR="#000000"><A HREF="mailto:Kde-perl@kde.org">Kde-perl@kde.org</A></FONT>
<FONT COLOR="#000000"><A \
HREF="https://mail.kde.org/mailman/listinfo/kde-perl">https://mail.kde.org/mailman/listinfo/kde-perl</A></FONT>

</PRE>
</BLOCKQUOTE>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%">
<TR>
<TD>
<BR>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%">
<TR>
<TD>
<U><A HREF="mailto:roy@SiliconTao.com">Roy Souther</A></U><BR>
<U><A HREF="http://www.SiliconTao.com">www.SiliconTao.com</A></U><BR>
Let Open Source help your business move beyond.<BR>
<BR>
For security this message is digitally authenticated by <U><A \
HREF="http://www.gnupg.org">GnuPG</A></U>. </TD>
</TR>
</TABLE>
<BR>
<BR>
<BR>
</TD>
</TR>
</TABLE>
</BODY>
</HTML>

["signature.asc" (application/pgp-signature)]

_______________________________________________
Kde-perl mailing list
Kde-perl@kde.org
https://mail.kde.org/mailman/listinfo/kde-perl

[prev in list] [next in list] [prev in thread] [next in thread] 