class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;  <span class="keyword">private</span>:</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    <span class="keywordtype">size_t</span> _width;</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <span class="keywordtype">size_t</span> _height;</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    ::ssize_t _xOff;</div><div class="line"><