title: ExtJS Layout, Horizontally then grow vertically
body: <p>I have a Ext.panel.Panel into which I want to dynamically add other "smaller" panels representing different "things" in my application. This panel is at the top of a grid and it is the same width as the grid. When a "smaller" panel is dynamically added to this "container panel" I want the panels to be added horizontally then vertically if the total width of all the "little" panels is greater than the width of the container. </p>
  
  <p>I've tried 'fit', 'hbox', 'vbox', everything.</p>
  
  <p>Am I missing a layout type?</p>