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📁 《Big C++ 》Third Edition电子书和代码全集-Part1

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	<title>Big C++: Chptr. 27 -- Graphical User Interfaces</title>
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  <meta name="Copyright" content="2005 John Wiley & Sons">
  <meta name="Author" content="Kurt Schmidt">
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<h2><font color='#009999'>27.6 Layout Management (cont.)</font></h2>
<ul>
  <li><font size="+1">You must include commands to turn on auto layout and tell 
    the frame which sizer to use.
	<blockquote>
      <pre>SetAutoLayout(true);
SetSizer(frame_sizer);</pre>
    </blockquote></font></li>
  <li><font size="+1">The additional parameters in the <tt>Add</tt> function explain 
    how the layout is maintained when the user resizes. 
    <blockquote>
      <pre>wxBoxSizer* frame_sizer = new wxBoxSizer(wxVERTICAL);
frame_sizer-&gt;Add(text, 1, wxGROW);
frame_sizer-&gt;Add(button_sizer, 0, wxALIGN_CENTER);</pre>
    </blockquote></font></li>
  <li><font size="+1">The second parameter indicates the ratio of size used in 
    vertical components.</font> 
    <ul>
      <li><font size="+1">0 means don't resize.</font></li>
      <li><font size="+1">If you had a component with parameter 1, and another 
        with parameter 2, the second would always use twice as much (vertical) 
        space as the first.</font></li>
    </ul>
  </li>
  <li><font size="+1">The third parameter describes horizontal growth behavior.</font>
    <ul>
      <li><font size="+1">The text control grows with the window.</font></li>
      <li><font size="+1">The button bar doesn't grow, but should be centered.</font></li>
    </ul>
  </li>
</ul>
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