fxruby users - Apr 2006 - FXListBox ...connect(SEL_COMMAND)

Hi,

    I think I got a  problem  with the FXListBox widget. ( ruby 1.8.4
(2005-12-24) [i386-mswin32]) )

      FXListBox.new(parent, nil, 0) do |libo4|
       libo4.appendItem("0 very weird")
       libo4.appendItem("1 very weird")
       libo4.appendItem("2 very weird")
       libo4.appendItem("3 very weird")
       libo4.appendItem("4 very weird")
       libo4.appendItem("5 very weird")
       libo4.appendItem("6 very weird")
       libo4.appendItem("7 very weird")
       libo4.appendItem("8 very weird")
       libo4.numVisible = 6
       libo4.connect(SEL_COMMAND) do |sender,selector,data|
            puts data
       end

 The data value  printed is always 1.  Not always, sometimes true, false .....

  I am amazed. It''s a very common widget. I Hope I''m wrong
somewhere

  Regards

 G?rard M?nochet

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On Tue, 25 Apr 2006 23:48:19 +0200, G?rard M?nochet
<gerard.menochet at wanadoo.fr> wrote :
>     I think I got a  problem  with the FXListBox widget...
Gerard, would you please consider submitting a bug report about this? The
bug tracker for FXRuby can be found here:

    http://rubyforge.org/tracker/index.php?group_id=300&atid=1223

Thanks,

Lyle

I forgot

    To turn the problem around :    sender.currentItem      it''s ok
  ----- Original Message ----- 
  From: G?rard M?nochet 
  To: fxruby-users at rubyforge.org 
  Sent: Tuesday, April 25, 2006 11:48 PM
  Subject: [fxruby-users] FXListBox ...connect(SEL_COMMAND)


  Hi,

      I think I got a  problem  with the FXListBox widget. ( ruby 1.8.4
(2005-12-24) [i386-mswin32]) )

        FXListBox.new(parent, nil, 0) do |libo4|
         libo4.appendItem("0 very weird")
         libo4.appendItem("1 very weird")
         libo4.appendItem("2 very weird")
         libo4.appendItem("3 very weird")
         libo4.appendItem("4 very weird")
         libo4.appendItem("5 very weird")
         libo4.appendItem("6 very weird")
         libo4.appendItem("7 very weird")
         libo4.appendItem("8 very weird")
         libo4.numVisible = 6
         libo4.connect(SEL_COMMAND) do |sender,selector,data|
              puts data
         end

   The data value  printed is always 1.  Not always, sometimes true, false .....

    I am amazed. It''s a very common widget. I Hope I''m wrong
somewhere

    Regards

   G?rard M?nochet




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On Apr 26, 2006, at 6:02 PM, G?rard M?nochet wrote:
>     I have the same problem. I tried to use the currentItem,
> setCurrentItem() method (i guess the same thing that currentItem= ), 
> that
> works but apparently, no call to
> makeItemVisible(). (fxruby version 1.4.4   - ruby 1.8.4 - win32)
I just checked the source code for FXListBox in FOX 1.4.29, and calling 
setCurrentItem() on an FXListBox does in fact call makeItemVisible() on 
the embedded FXList:

	// Change current item
	void FXListBox::setCurrentItem(FXint index){
		list->setCurrentItem(index);
		list->makeItemVisible(index);
		if(0<=index){
			field->setIcon(list->getItemIcon(index));
			field->setText(list->getItemText(index));
		} else {
			field->setIcon(NULL);
			field->setText(" ");
		}
	}

Do you have an example program that demonstrates the problem?

Lyle

An example

      libo = FXListBox.new(parent, nil, 0)
      libo.numVisible = 6
      (1980..2050).each do |i| libo.appendItem(i.to_s) end
      libo.currentItem=26

    No ''makeItemVisible'' at the first show. If you click one
year, it will
always do it .

    To workaround, I do that

      libo.connect(SEL_CONFIGURE) do |sender,selector,data|
        begin ;   libo.currentItem  =  libo.currentItem   ;  rescue ;  end #
force the makeItemVisible
      end

Thanks

G?rard M?nochet

----- Original Message -----
From: "Lyle Johnson" <lyle at knology.net>
To: "G?rard M?nochet" <gerard.menochet at wanadoo.fr>
Cc: <fxruby-users at rubyforge.org>
Sent: Thursday, April 27, 2006 2:29 AM
Subject: Re: FXListBox makeItemVisible



On Apr 26, 2006, at 6:02 PM, G?rard M?nochet wrote:
>     I have the same problem. I tried to use the currentItem,
> setCurrentItem() method (i guess the same thing that currentItem= ),
> that
> works but apparently, no call to
> makeItemVisible(). (fxruby version 1.4.4   - ruby 1.8.4 - win32)
I just checked the source code for FXListBox in FOX 1.4.29, and calling
setCurrentItem() on an FXListBox does in fact call makeItemVisible() on
the embedded FXList:

// Change current item
void FXListBox::setCurrentItem(FXint index){
list->setCurrentItem(index);
list->makeItemVisible(index);
if(0<=index){
field->setIcon(list->getItemIcon(index));
field->setText(list->getItemText(index));
} else {
field->setIcon(NULL);
field->setText(" ");
}
}

Do you have an example program that demonstrates the problem?

Lyle

On Apr 26, 2006, at 8:35 PM, G?rard M?nochet wrote:
> An example
>
>       libo = FXListBox.new(parent, nil, 0)
>       libo.numVisible = 6
>       (1980..2050).each do |i| libo.appendItem(i.to_s) end
>       libo.currentItem=26
>
>     No ''makeItemVisible'' at the first show. If you click
one year, it
> will
> always do it .
Ah, OK. Yes, I can believe that calling makeItemVisible() before the 
list (or list box) is actually shown probably doesn''t have any effect. 
I think your workaround is probably the best bet.