From: Pierre Baillet <oct@...>
Date: 2003-01-07T06:18:46+09:00
Subject: [BUG][FOX] iconlist and multiple icon usage


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Hi, --

i've encountered a bug in the FOX library from the PragProg installer.
When using a FXIconList, it does not seem to be possible to use the
same FXIcon for more than 1 item in the list. Trying to do so result in
a segfault on win2k (and win98se) at least. 

Attached you will find a simple test case (you just need to set
FOLDER_OPEN to a valid png file on your system).

I've tried to .clone the FXIcon but it says the icon was already
detached or some kind of obscure error message related to, i guess,
reference counting.

FOX does seem to be quite sensitive on the icon topic and i've had hard
time to figure where segfaults where coming from... I even started to
believe that simple ruby code could make sefgault the interpreter :))

Apart from reinstancing an icon everytime, is there a solution to have
icons used more than once on with FOX ?

Thanks a lot,
-- 
Pierre Baillet
Tout avantage a ses inconv�nients et r�ciproquement.
Devise Shadok

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require "fox"
include Fox

class Foo < FXMainWindow

  include Responder

  FOLDER_OPEN = "icon/stock_open.png"

  def redraw_list
    @iconlist.clearItems
    # display empty boxes
    icon = FXPNGIcon.new(getApp(),@@folder_data)
    (1..3).each{ |f|
      item = FXIconItem.new(f.to_s, icon )
      @iconlist.appendItem(item)
    }
  end
  def initialize
    @application = FXApp.new("foo", "Bar")
    @@folder_data= File.open(FOLDER_OPEN,"rb").read()
    super(@application, "COM Marker Viewer "+VERSION, nil, nil, DECOR_ALL,
        0, 0,640, 480, 0, 0)
    frame = FXVerticalFrame.new(self, 
            LAYOUT_FILL_X|LAYOUT_FILL_Y)
    @iconlist = FXIconList.new(frame,nil,0,
                ICONLIST_BIG_ICONS|ICONLIST_ROWS|ICONLIST_COLUMNS|
                LAYOUT_FILL_X|LAYOUT_FILL_Y)
    @application.create()
    self.show(PLACEMENT_SCREEN)

    redraw_list
    @application.run()
  end
  
end
  
Foo.new()

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