[Kde-bindings] qtruby: Qt::TextView issue?

[Richard Dale]

On Tuesday 21 September 2004 04:12, Arash Abedinzadeh wrote:
> Hi,
>
> I noticed a weird behavior of qtruby and Qt::TextView respectively. I wrote
> a small script (attached), which starts a connection to an IRC server,
> reads everything that comes into the socket and adds the received strings
> to the Qt::TextView object. The problem is that somehow the widget needs
> some kind of signal, like a resize event, a mouseclick or something like
> that to draw the new strings.
>
> But actually I'm not even sure whether it's a qtruby issue or if messed up
> something in my code. Could someone please take a look at it? Thanks.
I think the problem is that you can't mix ruby threads with Qt apps. Instead 
you could use a Qt::Timer to poll the socket every 200 ms or so like this 
code below.

-- Richard

class Client < Qt::Object
 slots 'input()'
 
 private
 def initialize(cfg, gui)
  super()
  @cfg = cfg
  @gui = gui
  @socket = TCPSocket.new(cfg[:server], cfg[:port])
  login
  @timer = Qt::Timer.new
  connect(@timer, SIGNAL('timeout()'), SLOT('input()'))
  @timer.start(200)
 end

 def send(str, flags = 0)
  @socket.send("#{str}\r\n", flags)
 end

 def gets
  @socket.gets("\r\n")
 end

 def login
  send("NICK #{@cfg[:nick]}")
  send("PASS #{@cfg[:pass]}") if @cfg[:pass]
  send("USER #{@cfg[:username]} #{@cfg[:hostname]} #{@cfg[:servername]} 
#{@cfg[:realname]}")
 end

 public

 def input
  io = select([@socket], nil, nil, nil)
  if io
   @gui.out(gets)
  end
 end
end
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