title: TextTrimming from left
body: <p>Is there a way to specify text trimming on a <code>TextBlock</code> to be from the left side? </p>
  
  <p>I've manage to accomplish two out of three scenarios (the third being the one I need): </p>
  
  <ol>
  <li><p>Regular trimming</p>
  
  <pre><code>&lt;TextBlock 
      VerticalAlignment="Center" 
      Width="80" 
      TextTrimming="WordEllipsis"
      Text="A very long text that requires trimming" /&gt;
  
  // Result: "A very long te..."
  </code></pre></li>
  <li><p>Left trimming</p>
  
  <pre><code>&lt;TextBlock 
      VerticalAlignment="Center" 
      Width="80" 
      FlowDirection="RightToLeft"
      TextTrimming="WordEllipsis"
      Text="A very long text that requires trimming." /&gt;
  
  // Result: "...A very long te"
  </code></pre></li>
  <li><p>Left trimming where the end of the text is seen</p>
  
  <pre><code>// Desired result: "...uires trimming"
  </code></pre></li>
  </ol>
  
  <p>Does anyone know if this is possible? Thanks. </p>