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<title>Wt examples: /home/koen/project/wt/public-git/wt/examples/treeview-dragdrop/CsvUtil.h File Reference</title>
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 <span id="projectnumber">3.2.3</span>
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<div class="title">/home/koen/project/wt/public-git/wt/examples/treeview-dragdrop/CsvUtil.h File Reference</div> </div>
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<div class="textblock"><code>#include <iostream></code><br/>
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<p><a href="treeview-dragdrop_2CsvUtil_8h_source.html">Go to the source code of this file.</a></p>
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<tr><td class="memItemLeft" align="right" valign="top">namespace  </td><td class="memItemRight" valign="bottom"><a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/namespaceWt.html">Wt</a></td></tr>
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Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="treeview-dragdrop_2CsvUtil_8h.html#a1ce51cd14c57073cb7839d5e05b59c65">readFromCsv</a> (std::istream &f, <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html">Wt::WAbstractItemModel</a> *model, int numRows=-1, bool firstLineIsHeaders=true)</td></tr>
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<hr/><h2>Function Documentation</h2>
<a class="anchor" id="a1ce51cd14c57073cb7839d5e05b59c65"></a><!-- doxytag: member="CsvUtil.h::readFromCsv" ref="a1ce51cd14c57073cb7839d5e05b59c65" args="(std::istream &f, Wt::WAbstractItemModel *model, int numRows=-1, bool firstLineIsHeaders=true)" -->
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<td class="memname">void readFromCsv </td>
<td>(</td>
<td class="paramtype">std::istream & </td>
<td class="paramname"><em>f</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html">Wt::WAbstractItemModel</a> * </td>
<td class="paramname"><em>model</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>numRows</em> = <code>-1</code>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>firstLineIsHeaders</em> = <code>true</code> </td>
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<td>)</td>
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<p>Definition at line <a class="el" href="treeview-dragdrop_2CsvUtil_8C_source.html#l00009">9</a> of file <a class="el" href="treeview-dragdrop_2CsvUtil_8C_source.html">CsvUtil.C</a>.</p>
<div class="fragment"><pre class="fragment">{
<span class="keywordtype">int</span> csvRow = 0;
<span class="keywordflow">while</span> (f) {
std::string line;
getline(f, line);
<span class="keywordflow">if</span> (f) {
<span class="keyword">typedef</span> boost::tokenizer<boost::escaped_list_separator<char> >
CsvTokenizer;
CsvTokenizer tok(line);
<span class="keywordtype">int</span> col = 0;
<span class="keywordflow">for</span> (CsvTokenizer::iterator i = tok.begin();
i != tok.end(); ++i, ++col) {
<span class="keywordflow">if</span> (col >= model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#abcf7912a95a0a60f8e9b1c37d30b8383">columnCount</a>())
model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#a1eded9eb68b9247ae2ff371f74a5e5f2">insertColumns</a>(model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#abcf7912a95a0a60f8e9b1c37d30b8383">columnCount</a>(),
col + 1 - model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#abcf7912a95a0a60f8e9b1c37d30b8383">columnCount</a>());
<span class="keywordflow">if</span> (firstLineIsHeaders && csvRow == 0)
model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#a57f5d417f933440db0d38ece7dd370f4">setHeaderData</a>(col, boost::any(<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html#a17afc7c43b5b7a710047be4a2c639575">Wt::WString::fromUTF8</a>(*i)));
<span class="keywordflow">else</span> {
<span class="keywordtype">int</span> dataRow = firstLineIsHeaders ? csvRow - 1 : csvRow;
<span class="keywordflow">if</span> (numRows != -1 && dataRow >= numRows)
<span class="keywordflow">return</span>;
<span class="keywordflow">if</span> (dataRow >= model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#ab0709a8f71fd5df882f29bb29fd055f0">rowCount</a>())
model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#abcafc38dc24fd9edf70eafe834ca411d">insertRows</a>(model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#ab0709a8f71fd5df882f29bb29fd055f0">rowCount</a>(),
dataRow + 1 - model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#ab0709a8f71fd5df882f29bb29fd055f0">rowCount</a>());
std::string s = *i;
boost::any data;
<span class="keywordtype">char</span> *end;
<span class="keywordtype">int</span> i = std::strtol(s.c_str(), &end, 10);
<span class="keywordflow">if</span> (*end == 0)
data = boost::any(i);
<span class="keywordflow">else</span> {
<span class="keywordtype">double</span> d = std::strtod(s.c_str(), &end);
<span class="keywordflow">if</span> (*end == 0)
data = boost::any(d);
<span class="keywordflow">else</span>
data = boost::any(<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html#a17afc7c43b5b7a710047be4a2c639575">Wt::WString::fromUTF8</a>(s));
}
model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#a70856db8c322be8c7f397a932165a943">setData</a>(dataRow, col, data);
}
}
}
++csvRow;
}
}
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