title: What Qt widgets to use to draw a "game-of-life"-like application?
body: <p>For an experiment, I'd like to create a simple graphical application.</p>
  
  <p>My goal isn't complex: I just need to draw single pixels or lines of different colors, and refresh the view regularly. Something like <a href="http://en.wikipedia.org/wiki/Conway%27s_Game_of_Life" rel="nofollow noreferrer">Conway's Game of Life</a>.</p>
  
  <p>I'm used to work with <code>Qt</code> but never for this kind of task.</p>
  
  <p>What widgets/objects should I use to get started ? Is there anything special I should know/do ?</p>
  
  <p>Thank you.</p>