title: How to compose buttons in QScrollArea?
body: <p>I'm creating dynamically unknown number of buttons and put them to QScrollArea.</p>
  
  <pre><code>someDialogButton = new QPushButton();
  usersDialogs.push_back(someDialogButton);
  ui-&gt;usersArea-&gt;setWidget(someDialogButton);
  </code></pre>
  
  <p><code>usersDialogs</code> is <code>QVector&lt;QPushButton*&gt;</code></p>
  
  <p><code>usersArea</code> is <code>QScrollArea</code></p>
  
  <p>But the buttons overlap and can be seen only the last button added. I tried use: <code>setLayout(QLayout* layout)</code> method, but it was useless.</p>
  
  <p>How I can compose the buttons to make all buttons visible?</p>