<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>Wt examples: /home/koen/project/wt/public-git/wt/examples/charts/CsvUtil.C Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">Wt examples  <span id="projectnumber">3.2.3</span> </div> </td> </tr> </tbody> </table> </div> <!-- Generated by Doxygen 1.7.5.1 --> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <div id="navrow2" class="tabs2"> <ul class="tablist"> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul> </div> <div class="header"> <div class="headertitle"> <div class="title">/home/koen/project/wt/public-git/wt/examples/charts/CsvUtil.C</div> </div> </div> <div class="contents"> <a href="charts_2CsvUtil_8C.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span> <a name="l00002"></a>00002 <span class="comment"> * Copyright (C) 2008 Emweb bvba, Kessel-Lo, Belgium.</span> <a name="l00003"></a>00003 <span class="comment"> *</span> <a name="l00004"></a>00004 <span class="comment"> * See the LICENSE file for terms of use.</span> <a name="l00005"></a>00005 <span class="comment"> */</span> <a name="l00006"></a>00006 <a name="l00007"></a>00007 <span class="preprocessor">#include <stdlib.h></span> <a name="l00008"></a>00008 <span class="preprocessor">#include <boost/tokenizer.hpp></span> <a name="l00009"></a>00009 <a name="l00010"></a>00010 <span class="preprocessor">#include <Wt/WAbstractItemModel></span> <a name="l00011"></a>00011 <span class="preprocessor">#include <Wt/WString></span> <a name="l00012"></a>00012 <a name="l00013"></a>00013 <span class="preprocessor">#include "CsvUtil.h"</span> <a name="l00014"></a>00014 <a name="l00015"></a><a class="code" href="group__chartsexample.html#ga1ce51cd14c57073cb7839d5e05b59c65">00015</a> <span class="keywordtype">void</span> <a class="code" href="group__chartsexample.html#ga1ce51cd14c57073cb7839d5e05b59c65" title="Utility function that reads a model from a CSV file.">readFromCsv</a>(std::istream& f, <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html">Wt::WAbstractItemModel</a> *model, <a name="l00016"></a>00016 <span class="keywordtype">int</span> numRows, <span class="keywordtype">bool</span> firstLineIsHeaders) <a name="l00017"></a>00017 { <a name="l00018"></a>00018 <span class="keywordtype">int</span> csvRow = 0; <a name="l00019"></a>00019 <a name="l00020"></a>00020 <span class="keywordflow">while</span> (f) { <a name="l00021"></a>00021 std::string line; <a name="l00022"></a>00022 getline(f, line); <a name="l00023"></a>00023 <a name="l00024"></a>00024 <span class="keywordflow">if</span> (f) { <a name="l00025"></a>00025 <span class="keyword">typedef</span> boost::tokenizer<boost::escaped_list_separator<char> > <a name="l00026"></a>00026 CsvTokenizer; <a name="l00027"></a>00027 CsvTokenizer tok(line); <a name="l00028"></a>00028 <a name="l00029"></a>00029 <span class="keywordtype">int</span> col = 0; <a name="l00030"></a>00030 <span class="keywordflow">for</span> (CsvTokenizer::iterator i = tok.begin(); <a name="l00031"></a>00031 i != tok.end(); ++i, ++col) { <a name="l00032"></a>00032 <a name="l00033"></a>00033 <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>()) <a name="l00034"></a>00034 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>(), <a name="l00035"></a>00035 col + 1 - model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#abcf7912a95a0a60f8e9b1c37d30b8383">columnCount</a>()); <a name="l00036"></a>00036 <a name="l00037"></a>00037 <span class="keywordflow">if</span> (firstLineIsHeaders && csvRow == 0) <a name="l00038"></a>00038 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))); <a name="l00039"></a>00039 <span class="keywordflow">else</span> { <a name="l00040"></a>00040 <span class="keywordtype">int</span> dataRow = firstLineIsHeaders ? csvRow - 1 : csvRow; <a name="l00041"></a>00041 <a name="l00042"></a>00042 <span class="keywordflow">if</span> (numRows != -1 && dataRow >= numRows) <a name="l00043"></a>00043 <span class="keywordflow">return</span>; <a name="l00044"></a>00044 <a name="l00045"></a>00045 <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>()) <a name="l00046"></a>00046 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>(), <a name="l00047"></a>00047 dataRow + 1 - model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#ab0709a8f71fd5df882f29bb29fd055f0">rowCount</a>()); <a name="l00048"></a>00048 <a name="l00049"></a>00049 boost::any data; <a name="l00050"></a>00050 std::string s = *i; <a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="keywordtype">char</span> *endptr; <a name="l00053"></a>00053 <a name="l00054"></a>00054 <span class="keywordflow">if</span> (s.empty()) <a name="l00055"></a>00055 data = boost::any(); <a name="l00056"></a>00056 <span class="keywordflow">else</span> { <a name="l00057"></a>00057 <span class="keywordtype">double</span> d = strtod(s.c_str(), &endptr); <a name="l00058"></a>00058 <span class="keywordflow">if</span> (*endptr == 0) <a name="l00059"></a>00059 data = boost::any(d); <a name="l00060"></a>00060 <span class="keywordflow">else</span> <a name="l00061"></a>00061 data = boost::any(<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html#a17afc7c43b5b7a710047be4a2c639575">Wt::WString::fromUTF8</a>(s)); <a name="l00062"></a>00062 } <a name="l00063"></a>00063 <a name="l00064"></a>00064 model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#a70856db8c322be8c7f397a932165a943">setData</a>(dataRow, col, data); <a name="l00065"></a>00065 } <a name="l00066"></a>00066 } <a name="l00067"></a>00067 } <a name="l00068"></a>00068 <a name="l00069"></a>00069 ++csvRow; <a name="l00070"></a>00070 } <a name="l00071"></a>00071 } </pre></div></div> </div> <hr size="1"><address style="text-align: right; margin: 3px"><small> Generated on Thu Nov 1 2012 for <a href="http://www.webtoolkit.eu/wt">the C++ Web Toolkit (Wt)</a> by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" border="0" style="vertical-align: middle; display: inline-block; height: 2em"></a> 1.7.5.1</small></address> </body> </html>