Creating GUI with RUBY
I am very impressed with Ruby, and I am experimenting with JRuby in NetBeans. But it's hard to get more than a smattering of information on using JRuby with Swing.  At the moment, I have the following program, which works, except for the commented line.

    require 'java'

    include_class 'java.awt.event.ActionListener'
    include_class 'javax.swing.JButton'
    include_class 'javax.swing.JFrame'

    class ClickAction
       include ActionListener

       def actionPerformed(event)
          puts "Button clicked"
       end
    end #ClickAction

    class MainWindow < JFrame
       def initialize
          super "JRuby Swing Demo"
          setDefaultCloseOperation JFrame::EXIT_ON_CLOSE
          button = JButton.new "Click me"
          button.setSize 30, 100                  #this line does nothing
          button.addActionListener ClickAction.new
          add button		
          pack
       end
    end

    mainWindow = MainWindow.new
    mainWindow.setSize 300, 300
    mainWindow.setVisible(true)

When I run this, the button automatically expands to occupy the whole window.
So why does "setSize" work on the main window, but not on the button.

Also, it there a "setBounds" method analogous to that in Java?

Thanks for any help with this.  I code my own layouts in Java, and that is what I'd like to do  in JRuby.

Creating GUI with RUBY
===

I am very impressed with Ruby, and I am experimenting with JRuby in NetBeans. But it's hard to get more than a smattering of information on using JRuby with Swing.  At the moment, I have the following program, which works, except for the commented line.

    require 'java'

    include_class 'java.awt.event.ActionListener'
    include_class 'javax.swing.JButton'
    include_class 'javax.swing.JFrame'

    class ClickAction
       include ActionListener

       def actionPerformed(event)
          puts "Button clicked"
       end
    end #ClickAction

    class MainWindow < JFrame
       def initialize
          super "JRuby Swing Demo"
          setDefaultCloseOperation JFrame::EXIT_ON_CLOSE
          button = JButton.new "Click me"
          button.setSize 30, 100                  #this line does nothing
          button.addActionListener ClickAction.new
          add button		
          pack
       end
    end

    mainWindow = MainWindow.new
    mainWindow.setSize 300, 300
    mainWindow.setVisible(true)

When I run this, the button automatically expands to occupy the whole window.
So why does "setSize" work on the main window, but not on the button.

Also, it there a "setBounds" method analogous to that in Java?

Thanks for any help with this.  I code my own layouts in Java, and that is what I'd like to do  in JRuby.
