[ruby-core:31024] [Bug #3531] segmentation fault caused by etc/activation.rb (wxruby)

Bug #3531: segmentation fault caused by  etc/activation.rb (wxruby)
http://redmine.ruby-lang.org/issues/show/3531

Author: ding ding
Status: Open, Priority: Low
ruby -v: ruby 1.9.1p243 (2009-07-16 revision 24175) [i386-mingw32]

E:\wxruby\samples\etc>ruby activation.rb
Frame 'Tall window' became activated
Frame 'Tall window' became deactivated
Frame 'Wide window' became activated
Frame 'Wide window' became deactivated
Frame 'Tall window' became activated
activation.rb:54: [BUG] Segmentation fault
ruby 1.9.1p243 (2009-07-16 revision 24175) [i386-mingw32]

-- control frame ----------
c:0010 p:---- s:0028 b:0028 l:000027 d:000027 CFUNC  :get_title
c:0009 p:0064 s:0025 b:0023 l:000022 d:000022 METHOD activation.rb:54
c:0008 p:0012 s:0019 b:0019 l:0011b0 d:000018 BLOCK  activation.rb:36
c:0007 p:---- s:0016 b:0016 l:000015 d:000015 FINISH
c:0006 p:---- s:0014 b:0014 l:000013 d:000013 CFUNC  :call
c:0005 p:---- s:0012 b:0012 l:000011 d:000011 CFUNC  :on_run
c:0004 p:---- s:0010 b:0010 l:000009 d:000009 CFUNC  :main_loop
c:0003 p:0092 s:0007 b:0007 l:00095c d:001670 EVAL   activation.rb:101
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:0000 s:0002 b:0002 l:00095c d:00095c TOP
---------------------------
-- Ruby level backtrace information-----------------------------------------
activation.rb:54:in `get_title'
activation.rb:54:in `on_activate'
activation.rb:36:in `block in initialize'
activation.rb:101:in `call'
activation.rb:101:in `on_run'
activation.rb:101:in `main_loop'
activation.rb:101:in `<main>'

[NOTE]
You may encounter a bug of Ruby interpreter. Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html


This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.


E:\wxruby\samples\etc>type activation.rb
#!/usr/bin/env ruby
# wxRuby2 Sample Code. Copyright (c) 2004-2008 wxRuby development team
# Freely reusable code: see SAMPLES-LICENSE.TXT for details
begin
  require 'rubygems'
rescue LoadError
end
require 'wx'

# This sample demonstrates the use of Activate Events. These are
# generated when a frame becomes active or inactive. This is typically
# indicated by a frame's titlebar changing colour, and a widget within
# the frame gainin focus. An event is also generated when a whole wxRuby
# app starts or stops being the current focussed desktop application.

class MinimalFrame < Wx::Frame
  def initialize(title, pos, size, style = Wx::DEFAULT_FRAME_STYLE)
    super(nil, -1, title, pos, size, style)


    menuFile = Wx::Menu.new()
    helpMenu = Wx::Menu.new()
    helpMenu.append(Wx::ID_ABOUT, "&About...\tF1", "Show about dialog")
    menuFile.append(Wx::ID_EXIT, "E&xit\tAlt-X", "Quit this program")
    menuBar = Wx::MenuBar.new()
    menuBar.append(menuFile, "&File")
    menuBar.append(helpMenu, "&Help")
    set_menu_bar(menuBar)

    create_status_bar(2)
    set_status_text("Welcome to wxRuby!")

    evt_menu(Wx::ID_EXIT) { on_quit }
    evt_menu(Wx::ID_ABOUT) { on_about }

    evt_activate { | e | on_activate(e) }
    evt_iconize  { | e | on_iconize(e) }
  end


  def on_iconize(event)
    if event.iconized
      puts "Frame '#{get_title}' was iconized"
    else
      puts "Frame '#{get_title}' was restored"
    end
  end

  def on_activate(event)
    if event.get_active
      puts "Frame '#{get_title}' became activated"
      set_status_text 'Active'
    else
      puts "Frame '#{get_title}' became deactivated"
      set_status_text 'Inactive'
    end
    event.skip # important
  end

  def on_quit
    Wx::get_app.close_all
  end

  def on_about
    msg =  sprintf("This is the About dialog of the activate sample.\n" \
                    "Welcome to wxRuby, version %s", Wx::WXRUBY_VERSION)
    Wx::message_box(msg, "About Activate", Wx::OK|Wx::ICON_INFORMATION, self)
  end
end

class RbApp < Wx::App
  def on_init
    @frame_1 = MinimalFrame.new("Tall window",
                                Wx::Point.new(50, 50),
                                Wx::Size.new(150, 240))
    @frame_2 = MinimalFrame.new("Wide window",
                                Wx::Point.new(100, 100),
                                Wx::Size.new(300, 180))
    evt_activate_app { | e | on_activate_app(e) }
    @frame_1.show()
    @frame_2.show()

  end

  def on_activate_app(event)
    if event.get_active
      puts "The app became active"
    else
      puts "The app became inactive"
    end
    event.skip # important
  end

  def close_all
    @frame_1.close(true)
    @frame_2.close(true)
  end
end

app = RbApp.new
app.main_loop()


####well , maybe it's not ruby's fault.


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