title: GTK+ Dock Panel like visual component
body: <p>I'm developing a small desktop application using python. I want it to be multi platform, and have a GUI similar (but simpler) to Eclipse. I know that the component that works just like eclipse layout are called DockPanel in Microsoft .NET.</p>
  
  <p>Can someone help me out? Since eclipse is developed in GTK+ I guess I need only to discover the name of the GUI component, or maybe tell me another its name on GUI framework like Qt.</p>