title: How to view a table of tables in Qt?
body: <p>I using Qt library. And I need to show a table of tables, and sort data in each sub-table. </p>
  
  <p>For examlple something like this (2x2 table of 3x3 tables)</p>
  
  <pre><code>    sub 1   |  sub 2
  -------------------------
  | i | 0 | 0 | c | 0 | 0 |  s
  -------------------------  u
  | j | 0 | 0 | d | 0 | 0 |  b
  -------------------------  1
  | k | 0 | 0 | e | 0 | 0 |
  -------------------------------
  | a | 0 | 0 | c | 0 | 0 |
  -------------------------  s
  | b | 0 | 0 | d | 0 | 0 |  u
  -------------------------  b
  | c | 0 | 0 | e | 0 | 0 |  2
  -------------------------
  </code></pre>
  
  <p>Any solutions are welcome.</p>
  
  <p>ps. My idea is to implement a custom model with 2d array of models. </p>