wxruby users - Mar 2009 - No evt_tree_sel_changed with TR_MULTIPLE

Hi,

I have a problem with evt_tree_sel_changed not getting fired when I''m
selecting a node programatically on a TreeCtrl with the TR_MULTIPLE flag
set.
Is this intended?

I''ve got some code depending on the evt-handler.
Can I work around this? I thought of EvtHandler#add_pending_event but I
can''t figure out the correct commandType parameter to TreeEvent#new.

Here''s a sample app, that demonstrates the above:

require ''wx''
include Wx

class MyFrame < Frame
  def initialize
    super nil, -1, "no sel event"

    @tree = TreeCtrl.new(self, -1, :style => TR_MULTIPLE)

    evt_tree_sel_changed(@tree) do |e|
      puts "sel changed #{@tree.get_item_text(e.get_item)}"
    end

    @root = @tree.add_root ''root'', 0
    child = @tree.insert_item @root, 0, ''child''
    @tree.expand @root

    @tree.select_item child
  end
end

class MyApp < App
    def on_init
         f =  MyFrame.new
   f.show
    end
end

MyApp.new.main_loop


Thanks in advance,
Christian.

Attachments:
http://www.ruby-forum.com/attachment/3480/tree_no_selection_evt.rb

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Posted via http://www.ruby-forum.com/.

Hi Christian

Christian Schmidt wrote:
> I have a problem with evt_tree_sel_changed not getting fired when
I''m
> selecting a node programatically on a TreeCtrl with the TR_MULTIPLE flag
> set.
>   
I think it''s a wxWidgets bug:
http://trac.wxwidgets.org/ticket/9570
> I''ve got some code depending on the evt-handler.
> Can I work around this? I thought of EvtHandler#add_pending_event but I
> can''t figure out the correct commandType parameter to
TreeEvent#new.
The event type is an integer constant which uniquely identifies that 
kind of event. In this case, you want Wx::EVT_COMMAND_TREE_SEL_CHANGED.

For reference, you can see the mapping of all event types to event 
classes in lib/wx/classes/evthandler.rb

http://wxruby.rubyforge.org/svn/branches/wxruby_2_0_stable/lib/wx/classes/evthandler.rb

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