fxruby users - Dec 2008 - FXText and FXDataTarget

Hi,

I''d like to ask if it is possible to control the length of the text
displayed in FXText via the FXDataTarget object?
I tried something like that but it did not work:

require "rubygems"
require "fox16"
include Fox
class MyProject < FXMainWindow
  def initialize (app, title)
    super(app,title, :opts=>DECOR_ALL^(DECOR_SHRINKABLE|
DECOR_STRETCHABLE|DECOR_RESIZE)|
LAYOUT_EXPLICIT,:width=>400,:height=>300)
     @target=FXDataTarget.new("jkjkjk") do |cmd|
      cmd.connect(SEL_CHANGED) do |sender, sel, data|
                 if data.length>10
                    FXApp.instance.beep
                    sender.value=data[0..9]
                 end

      end
    end

    @text=FXText.new
(self,:x=>2, :y=>2,:width=>216, :height=>60,:target =>
@target, :selector => FXDataTarget::ID_VALUE,:opts=>LAYOUT_EXPLICIT)

  end
  def create
    super
    show(PLACEMENT_SCREEN)
  end
end
app = FXApp.new
MyProject.new(app, "test")
app.create
app.run

thanks

Krzys

On Dec 29, 2008, at 6:34 PM, kwicher wrote:
> I''d like to ask if it is possible to control the length of the
text
> displayed in FXText via the FXDataTarget object?
> I tried something like that but it did not work:
<snip>

If I understand your question correctly, the answer is no.

The FXDataTarget only sends a SEL_CHANGED message in response to  
receiving SEL_CHANGED from some other object. So in your example, the  
block that checks the data length will only get triggered if someone  
tries to edit the text in the FXText window.

Now, the block won''t get exercised if you change the
FXDataTarget''s
value directly. But if your goal is to limit the length of the text,  
you can presumably (?) just do that check whenever you change the  
value of the data target in the first place.

Hope this helps. Please follow up if I''ve misunderstood the question.

-- Lyle