Re: Destructors eg wxBitmap::~wxBitmap

2009-09-08 Thread Mattia Barbon 

Steve Cookson wrote:

  Hi,

I can't see any obvious samples that tell you how the Perl syntax works 
for removing an element, like a bitmap, a textctrl or a button.


Any pointers would be welcome.


  For all classes derived from wxWindow you can use -Destroy.  Most 
other classes (including wxBitmap) do not need to be explicitly 
destroyed (the ones that do should have a note detailing it).


HTH,
Mattia

Re: Destructors

2009-08-08 Thread Mattia Barbon 

Steve Cookson wrote:

  Hi,


Thanks to everyone for their help.

Here is an answer that works:

$self-{Notebook_tab_1}-DestroyChildren();
$self-{Notebook}-RemovePage(0);


  Doing it like this will leak the page object; unless you later reuse 
the window in Notebook_tab_1, the correct solution is either:



$self-{Notebook}-DeletePage(0);

or

$self-{Notebook}-RemovePage(0);
$self-{Notebook_tab_1}-Destroy();

Regards,
Mattia

RE: Destructors

2009-08-07 Thread Steve Cookson 
Hi Andri,

Thanks for this. 

So my frame is called $self, and I have a TextCtrl on it 
called $self-{Field_Txt}.  

I tried to do:

 DESTROY($self-{Field_Txt});
.
.
.
.
.

sub DESTROY{


}

but it doesn't work.

Maybe because I am only trying to delete part of an object, I should use a
different command.

Regards

Steve



-Original Message-
From: Andri Möll [mailto:an...@dot.ee] 
Sent: 07 August 2009 13:53
To: Steve Cookson
Cc: wxperl-users
Subject: Re: Destructors

On Fri, 2009-08-07 at 13:23 -0300, Steve Cookson wrote:
 Hi Guys,
 
 Does anyone know what the correct syntax for a Perl destructor is, if
 I want to remove a field, sizer or tab from a pane? 
 
 Any suggestions welcome!
 
 Regards
 
 Steve

Use the DESTROY subroutine with your Perl blessed object and invoke the
appropriate method on your panel/sizer.  wxSizer has Detach, wxWindow
has Destroy and so on.

Both the online WxWidgets' manual page at
http://docs.wxwidgets.org/trunk/index.html and the perlobj(1) manual
page might help you.


Andri

RE: Destructors

2009-08-07 Thread Steve Cookson 
Hi,

Thanks to everyone for their help.

Here is an answer that works:

$self-{Notebook_tab_1}-DestroyChildren();
$self-{Notebook}-RemovePage(0);

Regards

Steve



-Original Message-
From: Steve Cookson [mailto:steve.cook...@sca-uk.com] 
Sent: 07 August 2009 14:31
To: wxperl-users@perl.org
Cc: 'Andri Möll'
Subject: RE: Destructors

Hi Andri,

Thanks for this. 

So my frame is called $self, and I have a TextCtrl on it 
called $self-{Field_Txt}.  

I tried to do:

 DESTROY($self-{Field_Txt});
.
.
.
.
.

sub DESTROY{


}

but it doesn't work.

Maybe because I am only trying to delete part of an object, I should use a
different command.

Regards

Steve



-Original Message-
From: Andri Möll [mailto:an...@dot.ee] 
Sent: 07 August 2009 13:53
To: Steve Cookson
Cc: wxperl-users
Subject: Re: Destructors

On Fri, 2009-08-07 at 13:23 -0300, Steve Cookson wrote:
 Hi Guys,
 
 Does anyone know what the correct syntax for a Perl destructor is, if
 I want to remove a field, sizer or tab from a pane? 
 
 Any suggestions welcome!
 
 Regards
 
 Steve

Use the DESTROY subroutine with your Perl blessed object and invoke the
appropriate method on your panel/sizer.  wxSizer has Detach, wxWindow
has Destroy and so on.

Both the online WxWidgets' manual page at
http://docs.wxwidgets.org/trunk/index.html and the perlobj(1) manual
page might help you.


Andri