Forum: wxRuby Validator data transfer

Hi all,

I'm working on a dialog box for a SketchUp plug-in using wxSU with 
several text
controls that accept numerical input only and need a little help with 
the
validators.

After going through the docs for wxRuby and wxWidgets I tried the 
following:

class SpurGearDialog < Wx::Dialog

   attr_accessor :gear_teeth

   def create_gear_parameter_controls

...

      #set validators
      val = Wx::TextValidator.new(Wx::FILTER_INCLUDE_CHAR_LIST, 
@gear_teeth)
      val.set_includes(@arr_int)
      @tc_gTeeth.set_validator(val)

...

   end
end

With @tc_gTeeth being the text control, @gear_teeth the instance 
variable that I
want the validator to save data to and @arr_int is my list of acceptable
characters.

When I attempt to open the dialog box, SketchUp crashes at the third 
line. I
found I can only get the validator to work by removing @gear_teeth when 
creating
the validator. However, if I do this I do not see how the validator can 
transfer
data between the control and my dialog class.

I'm a Ruby newbie so the problem might be my code but if not, is there a 
way to
get data from the control using validators in wxRuby or is data transfer 
just
not supported at this time?

TIA!

Walter

Hello Walter,

On Tue, Sep 7, 2010 at 8:35 PM, Walter Barnes 
<walter_barnes05@yahoo.com>wrote:

>
>       @tc_gTeeth.set_validator(val)
> When I attempt to open the dialog box, SketchUp crashes at the third line.
> Walter
>

When your dialog is accepted by the user, (Eg: Wx::ID_OK is returned 
from
show_modal), you use text_ctrl.value to retrieve the data that is stored 
in
the field.  You need to put an attr_reader on your dialog class, for 
your
tc_gTeeth.  Afterwhich, once your dialog is accepted, you use
myDialog.tc_gTeeth.value to retrieve the value that the user has 
inputed.

Hope this helps and makes sense.

hth,

Mario

It would appear then that validators are not fully implemented in 
wxRuby. From
the wxWidgets docs, I think it's possible to have a public String 
variable in
the dialog class that the validator sends the value of the text control 
to.
Basically then you can do MyDialog.my_variable without dealing directly 
with the
dialog controls.

If that's not possible in wxRuby I'll go ahead and do as you suggest and 
set up
accessors for the text controls.

Thanks Mario!




________________________________
From: Mario Steele <mario@ruby-im.net>
To: General discussion of wxRuby <wxruby-users@rubyforge.org>
Sent: Tue, September 7, 2010 8:18:29 PM
Subject: Re: [wxruby-users] Validator data transfer

Hello Walter,


On Tue, Sep 7, 2010 at 8:35 PM, Walter Barnes 
<walter_barnes05@yahoo.com> wrote:

Hi all,
>
>
>data between the control and my dialog class.
>
>I'm a Ruby newbie so the problem might be my code but if not, is there a way to 
>get data from the control using validators in wxRuby or is data transfer just 
>not supported at this time?
>
>TIA!
>
>Walter

When your dialog is accepted by the user, (Eg: Wx::ID_OK is returned 
from
show_modal), you use text_ctrl.value to retrieve the data that is stored 
in the
field.  You need to put an attr_reader on your dialog class, for your 
tc_gTeeth.
 Afterwhich, once your dialog is accepted, you use 
myDialog.tc_gTeeth.value to
retrieve the value that the user has inputed.

Hope this helps and makes sense.

hth,

Mario