RE: [Fxruby-users] FXPopup questions

[Adam W. <ad...@ta...>]

At 10:45 AM -0700 5/17/04, Oliver Smith wrote:
>  > 1. How can I remove all items from a FXPopup? I've tried destroying
>>  its children, but then I get empty menu items:
>>
>  >   	myPopup.children.each { | option |
>>   		option.destroy
>>   	}
>
>You should probably use 'myPopup.removeChild(child)'.  I believe the destroy
>function is always handled by Fox or FXRuby internally, so you don't ever
>need to call it.  Watch out for 'children.each', though...the iterator can
>screw up when you remove a child from the array in the middle of recursing
>through it.  You may want to duplicate the array first.

Thanks for the quick reply!

I used children.each instead of each_child for that reason. 
children.dup.each doesn't seems to behave any differently.

As for removeChild, I should have mentioned that I had tried it. The 
result is a Segmentation Fault (in Windows 98) when I click on the 
popup.

I tried rewriting the loop to avoid the iteration issue, with no 
better results:

     while myPopup.children.length > 0
    	myPopup.removeChild myPopup.children[0]
     end


>  > Now I'd like to choose which one is selected. How can I do that?
>
>I'm not sure what FXOption/FXOptionMenu are...I thought FXOption was a radio
>button at first, but now it looks like something else.  If what you want is
>a radio button in a menu; i.e. you have a few options and the selected one
>has a little circle next to it, you should do:

The class takes care of selecting the appropriate item automatically 
when the user clicks it -- it becomes the item displayed when the 
user lets go of the mouse button and menu pops closed. I should have 
been clearer about what I want to do, which is to select an item in 
the same way, but programmatically. That said, checkRadio and 
uncheckRadio might be the way to do it -- I'll experiment!

>So I guess I don't know what FXOption is, but the sample program dialog.rb
>seems to use it, if that helps.

I cribbed my initial code from the samples, as usual...

-- 
Adam Wildavsky  Extreme Programmer  Tameware, LLC
ad...@ta...         http://www.tameware.com