title: Libgdx Label multiline text height
body: <p>i have done a small test on LibGdx, on Multi-line Label, it seems that i cant get the wrapped line's height. Following is the code. Theoretically, height for aLebel should be > bLabel. But the result appear the same.</p>
  
  <p>code:</p>
  
  <pre><code>aLabel.setText("this is a super long long long text that need wrapping."); // line wrapped into 3 lines
  aLabel.setWrap(true);
  aLabel.setWidth(470);
  doLog("aLabel.getHeight(): " + aLabel.getHeight());
  
  bLabel.setText("this is short."); // unwrapped line
  bLabel.setWrap(true);
  bLabel.setWidth(470);
  doLog("bLabel.getHeight(): " + bLabel.getHeight());
  </code></pre>
  
  <p>result:</p>
  
  <pre><code>aLabel.getHeight(): 45.0
  bLabel.getHeight(): 45.0
  </code></pre>
  
  <p>Do anyone have any idea how to get the actual multi-line height in LibGdx? Thanks in advance.</p>