From: Mark Somerville <mark@...>
Date: 2006-01-30T20:46:17+09:00
Subject: Re: install_qtruby_on_mac

On Monday 30 January 2006 10:42, 天野 竜太郎 wrote:
> Hi, I am Ryutaro Amano.
> I am using ruby-1.8.4 on Mac 10.4.4 with XCode-2.2
> I have installed qtruby-1.0.10
<snip>

Hello.

There is a bug in version 1.0.10 when using Ruby 1.8.4 - it is some sort of 
problem with calling super when subclassing the Qt classes, which will create 
the problem you describe below.

An upgrade to 1.0.11 should fix the problem.

Mark

> -----------------------------------------------------------------------
>
> The window of tutorial4 have not button.
> ---------------------------------------------------------------------
> #!/usr/bin/env ruby
> $VERBOSE = true; $:.unshift File.dirname($0)
>
> require 'Qt'
>
> class MyWidget < Qt::Widget
>
> def initialize(parent = nil, name = nil)
> 	super
>      setMinimumSize(200, 120)
>      setMaximumSize(200, 120)
>
>      quit = Qt::PushButton.new('Quit', self, 'quit')
>      quit.setGeometry(62, 40, 75, 30)
>      quit.setFont(Qt::Font.new('Times', 18, Qt::Font::Bold))
>      connect(quit, SIGNAL('clicked()'), $qApp, SLOT('quit()'))
> end
>
> end
>
> a = Qt::Application.new(ARGV)
>
> w = MyWidget.new
> w.setGeometry(100, 100, 200, 120)
> a.setMainWidget(w)
> w.show
> a.exec