fxruby users - May 2006 - Dynamically removing & adding widgets at runtime

Hi all,

Am facing a problem where I dynamically remove and add widgets at
runtime, but the new widgets are not drawn. Attached is a simple
reproduction script.

Basically, this app helps me manage a particular set of services on
various machines (for easy read, the attached samples just works with
file names). When switching machines I remove all entries from the
groupbox, and add all entries for the new location. What I can see is
that the existing entries are removed, the whole frame is resized to
the new number of entries, but no the groupboxes remain blank - the
new items are not shown.

To reproduce, run the attached script, see the dir listing in the
current directory, click "reload" and select a new dir - and see my
problem.

Am probably missing something obvious. Have tried various things like
update, layout etc but can''t seem to make it work.

Any help much appreciated,
Assaph
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> Am facing a problem where I dynamically remove and add widgets at
> runtime, but the new widgets are not drawn. Attached is a simple
> reproduction script.
Seems like a generic problem with adding widgets. Here is a simpler
reproduction:


require ''fox14''
include Fox

class ControllerWindow < FXMainWindow

  def initialize(app)
    super(app, "Test", nil, nil, DECOR_ALL, 500, 300)
    @reload_btn = FXButton.new(self, "Add")
    @reload_btn.connect(SEL_COMMAND) do
      l = FXLabel.new(self, "Aa")
      self.title = self.numChildren.to_s
      resize(getDefaultWidth(), getDefaultHeight())
    end
  end
end

obj_controller_app = FXApp.new
obj_controller_window = ControllerWindow.new(obj_controller_app)
obj_controller_app.create
obj_controller_window.show
obj_controller_app.run


Using FXRuby 1.4.6.

Thanks,
Assaph

I think you need to call create on the new widgets, like

  def reload_data
    @dir = FXDirDialog.getOpenDirectory(self, "Dir", "Select
path")
    build_service_lists
    [@file_group, @dir_group].each{|grp| grp.children.each{|ch| ch.create} }
    resize(getDefaultWidth(), getDefaultHeight())
  end

best regards,
  Tobias

On 5/19/06, Tobias Herzke <fxrbu1 at gi2.herzkes.de>
wrote:
> I think you need to call create on the new widgets, like
Perfect, thanks!
Also, self.create seems to work just as well, no need to iterate over
the child objects.

Cheers,
Assaph