wxruby users - Sep 2009 - Filling Wx::ListCtrl with contents

Hi

Maximilian Br?utigam wrote:
> The problem is, that I have to define the on_get_item_text(item, col)
> function. There I would like to use the item and col variables to read
> data from a two-dimensional array. My very problem is, that I do not
> know how to transfer the array from another function to
> on_get_item_text(item, col) or better on_get_item_text(item, col,
> array). I attached a rubyscript showing what I mean.
I''m not 100% sure this is what you want, but if you want the ListCtrl
to
access the data from the frame, you could just write (in your 
on_get_item_text method)

parent.get_contents.at(item).at(col)

"parent" is a method available on all Windows which returns the 
containing frame/panel/etc.

Or you could also split out your listctrl into a separate subclass.

Also, there is much simpler syntax than you''re using for event
handlers,
where you have

    @listctrl.evt_list_item_selected(@listctrl.get_id()) {|event| 
on_item_selected(event)}

you could just writen

evt_list_item_selected(@listctrl, :on_item_selected)

hth
alex

Hi all,

I''ve got a question concerning ListCtrl_virtual of wxRuby since I see
no
way filling the list with dynamic contents. I''m new to Ruby so I maybe
have to apologise for my request.

The problem is, that I have to define the on_get_item_text(item, col)
function. There I would like to use the item and col variables to read
data from a two-dimensional array. My very problem is, that I do not
know how to transfer the array from another function to
on_get_item_text(item, col) or better on_get_item_text(item, col,
array). I attached a rubyscript showing what I mean.

I would be very grateful, if you could give me a solution of this
problem ― maybe modify my testscript. 

And/Or please show me how to use the approach via ListItems because the
samplefile 
http://wxruby.rubyforge.org/doc/samplelistctrl.html
at the website 
http://wxruby.rubyforge.org/doc/listctrl.html
is not accessible. I tinkered with it but it doesn''t really work.

Thank you very much in advance for your kind help.
Kind regards,
der Max
-- 
Maximilian Bräutigam
max-braeu@gmx.de
http://www.jcf.uni-jena.de/



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Alex Fenton wrote:
>
Hi Alex,

Is there any sample code for a Wx::ListCtrl?  On this page:

http://wxruby.rubyforge.org/doc/listctrl.html

the link to the sample code located here:

http://wxruby.rubyforge.org/doc/samplelistctrl.html

produces a 404 Not Found error.

On my own, I could not figure out how to add items to the different 
columns of a "report view" styled Wx::ListCtrl,


require ''rubygems''
require ''wx''

class MyFrame < Wx::Frame

  def initialize
    super(nil,
          :title => "Test",
          :size => [600, 400])

    panel = Wx::Panel.new(self)

    my_list = Wx::ListCtrl.new(panel,
                           :name => "Drinks",
                           :size => [400, 100],
                           :style => Wx::LC_REPORT)

    my_list.insert_column(0, "Drinks")
    my_list.insert_column(1, "Extras")

=begin
    my_list.set_item(0, 0, "coffee")
    my_list.set_item(1, 0, "tea")
    my_list.set_item(2, 0, "water")
=end

    my_list.insert_item(0, "coffee")
    my_list.insert_item(1, "tea")
    my_list.insert_item(2, "water")

    show
  end

end

class MyApp < Wx::App
  def on_init
    MyFrame.new
  end
end

MyApp.new.main_loop


How would I add items to the second column?
-- 
Posted via http://www.ruby-forum.com/.

Am Samstag, den 05.09.2009, 20:22 +0200 schrieb 7stud
--:
> Alex Fenton wrote:
> >
> 
> Hi Alex,
> 
> Is there any sample code for a Wx::ListCtrl?  On this page:
> 
> http://wxruby.rubyforge.org/doc/listctrl.html
> 
> the link to the sample code located here:
> 
> http://wxruby.rubyforge.org/doc/samplelistctrl.html
> 
> produces a 404 Not Found error.
> 
> On my own, I could not figure out how to add items to the different 
> columns of a "report view" styled Wx::ListCtrl,
> 
> 
> require ''rubygems''
> require ''wx''
> 
> class MyFrame < Wx::Frame
> 
>   def initialize
>     super(nil,
>           :title => "Test",
>           :size => [600, 400])
> 
>     panel = Wx::Panel.new(self)
> 
>     my_list = Wx::ListCtrl.new(panel,
>                            :name => "Drinks",
>                            :size => [400, 100],
>                            :style => Wx::LC_REPORT)
> 
>     my_list.insert_column(0, "Drinks")
>     my_list.insert_column(1, "Extras")
> 
> =begin
>     my_list.set_item(0, 0, "coffee")
>     my_list.set_item(1, 0, "tea")
>     my_list.set_item(2, 0, "water")
> =end
> 
>     my_list.insert_item(0, "coffee")
>     my_list.insert_item(1, "tea")
>     my_list.insert_item(2, "water")
> 
>     show
>   end
> 
> end
> 
> class MyApp < Wx::App
>   def on_init
>     MyFrame.new
>   end
> end
> 
> MyApp.new.main_loop
> 
> 
> How would I add items to the second column?
Hi 7stud,

with the help of Alex I was able to modify my testscript so it''s
working. Honestly, I''m not using ListItems but ListCtrl_virtual.

Try it out.
Kind regards,
der Max
-- 
Maximilian Br?utigam
max-braeu at gmx.de
http://www.jcf.uni-jena.de/

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hi

7stud -- wrote:
> On my own, I could not figure out how to add items to the different 
> columns of a "report view" styled Wx::ListCtrl,
>
>   
...
> How would I add items to the second column?
>   
Call insert_item first to create the row, then use set_item to set the 
text in the secondary columns. In your sample, something like:

    my_list.insert_item(0, "coffee")
    my_list.set_item(0, 1, "milk")
    my_list.insert_item(1, "tea")
    my_list.set_item(1, 1, "sugar")
    my_list.insert_item(2, "water")
    my_list.set_item(2, 1, "bubbles")

alex

Alex Fenton wrote:
>
> Call insert_item first to create the row, then use set_item to set the
> text in the secondary columns. In your sample, something like:
> 
>     my_list.insert_item(0, "coffee")
>     my_list.set_item(0, 1, "milk")
>     my_list.insert_item(1, "tea")
>     my_list.set_item(1, 1, "sugar")
>     my_list.insert_item(2, "water")
>     my_list.set_item(2, 1, "bubbles")
> 
> alex
Thanks Alex.  Can you fix that broken link as well?
-- 
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