wxruby users - Jun 2004 - some wxruby questions

so I''ve been using wxruby for a bit, and I have some questions.  Before
I start, I do want to say, that I am really liking wxruby, these 
questions are a result if really putting it through it''s paces.


1) how do you assign accelerator keys?

this kind of works if I add a menu item like "&New\tCtrl-N", but
this
only works for commands in the menu, and for some reason won''t work for
function keys, arrow keys, and translates many keys across platforms.  
For example, it translates a "ctrl" key to the "command" key
on a mac,
but sometimes I actually want to assign the control key

I think that the accelerator class is the key to this, but it seems to 
not be ported, is this correct?


2) I need to use a fixed width font, and I was trying to use FontList, 
to find it, but it seems to not be ported as well, is this true?  and 
if not, is there a work around?  MODERN fonts are NOT fixed width, 
especially on debian


3) Are there some memory problems with tree control?  I instantiate a 
tree control, add some items and then if I call this code several 
minutes later, I often get a seg fault :

	            get_item_data(get_selection).absolute_filename

(where absolute_filename is a method on the item data)

this works, for a while and then it starts seg faulting.  I''m guessing 
that somewhere the ruby garbage collection is prematurely collecting 
these items?  has anyone else seen this.  It''s really annoying


5) this might be more of a wxwindows question, but it seems on OSX, I 
can''t give focus to a button, which means that I can''t tab
through a
bunch of buttons, nor does the ''&'' in &Ok, &Cancel
work.  Does this
mean that you can not write keyboard driven apps for the mac in 
wxWindows?


4) this isn''t so much a wxruby question, but if anyone knows, I would 
love to hear the answer.  On OSX, how do you change the name of the 
application that is displayed in the menu bar from "ruby" to the name 
of your app?


thanks,

Jeremy

Here''s a few Mac specific answers for you.

Jeremy Stell-Smith wrote:
> so I''ve been using wxruby for a bit, and I have some questions.  
> Before I start, I do want to say, that I am really liking wxruby, 
> these questions are a result if really putting it through it''s
paces.
>
>
> 1) how do you assign accelerator keys?
>
> this kind of works if I add a menu item like "&New\tCtrl-N",
but this
> only works for commands in the menu, and for some reason won''t
work
> for function keys, arrow keys, and translates many keys across 
> platforms.  For example, it translates a "ctrl" key to the
"command"
> key on a mac, but sometimes I actually want to assign the control key
>
> I think that the accelerator class is the key to this, but it seems to 
> not be ported, is this correct?
>
True
>
> 2) I need to use a fixed width font, and I was trying to use FontList, 
> to find it, but it seems to not be ported as well, is this true?  and 
> if not, is there a work around?  MODERN fonts are NOT fixed width, 
> especially on debian
>
True
>
> 3) Are there some memory problems with tree control?  I instantiate a 
> tree control, add some items and then if I call this code several 
> minutes later, I often get a seg fault :
>
>                 get_item_data(get_selection).absolute_filename
>
> (where absolute_filename is a method on the item data)
>
> this works, for a while and then it starts seg faulting.  I''m
guessing
> that somewhere the ruby garbage collection is prematurely collecting 
> these items?  has anyone else seen this.  It''s really annoying
>
This is a GC bug with wxruby - it has to do with wxWindows deleting 
item_data objects. The current workaround is to use ruby hashtables 
instead of g/set_item_data. wxruby-swig should have more robust memory 
management.
>
> 5) this might be more of a wxwindows question, but it seems on OSX, I 
> can''t give focus to a button, which means that I can''t
tab through a
> bunch of buttons, nor does the ''&'' in &Ok,
&Cancel work.  Does this
> mean that you can not write keyboard driven apps for the mac in 
> wxWindows?
>
Hmmm - can''t say I''ve tried it actually.
>
> 4) this isn''t so much a wxruby question, but if anyone knows, I
would
> love to hear the answer.  On OSX, how do you change the name of the 
> application that is displayed in the menu bar from "ruby" to the
name
> of your app?


You need to "Bundle" your app, which is a tutorial I''ve been
meaning to
write. What I did was write my own ruby startup c program that looked in 
the resources folder for "start.rb", and then executed that file. That
binary goes in Contents/MacOS, the ruby scripts and wxruby go in 
Contents/Resources, and the Info.plist works as it always does. I can 
send you a sample bundle if you like.

Another of my intentions has been to move wxruby into a framework, but 
I''ve been buried in contract work. My time is freeing up again, and if 
your interested I can get it done.

Nick
>
>
> thanks,
>
> Jeremy
>
>
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