<!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: Charts example</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><a href="files.html"><span>Files</span></a></li> </ul> </div> </div> <div class="header"> <div class="summary"> <a href="#nested-classes">Classes</a> | <a href="#func-members">Functions</a> </div> <div class="headertitle"> <div class="title">Charts example</div> </div> </div> <div class="contents"> <table class="memberdecls"> <tr><td colspan="2"><h2><a name="nested-classes"></a> Classes</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classChartConfig.html">ChartConfig</a></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">A class that allows configuration of a cartesian chart. <a href="classChartConfig.html#details">More...</a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classTimeSeriesExample.html">TimeSeriesExample</a></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">A widget that demonstrates a times series chart. <a href="classTimeSeriesExample.html#details">More...</a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classCategoryExample.html">CategoryExample</a></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">A Widget that demonstrates a category chart. <a href="classCategoryExample.html#details">More...</a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classScatterPlotExample.html">ScatterPlotExample</a></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">A Widget that demonstrates a scatter plot. <a href="classScatterPlotExample.html#details">More...</a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classPieExample.html">PieExample</a></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">A Widget that demonstrates a Pie chart. <a href="classPieExample.html#details">More...</a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classChartsExample.html">ChartsExample</a></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">A widget that demonstrates various aspects of the charting lib. <a href="classChartsExample.html#details">More...</a><br/></td></tr> <tr><td colspan="2"><h2><a name="func-members"></a> Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__chartsexample.html#ga1ce51cd14c57073cb7839d5e05b59c65">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> <tr><td class="mdescLeft"> </td><td class="mdescRight">Utility function that reads a model from a CSV file. <a href="#ga1ce51cd14c57073cb7839d5e05b59c65"></a><br/></td></tr> </table> <hr/><h2>Function Documentation</h2> <a class="anchor" id="ga1ce51cd14c57073cb7839d5e05b59c65"></a><!-- doxytag: member="CsvUtil.h::readFromCsv" ref="ga1ce51cd14c57073cb7839d5e05b59c65" args="(std::istream &f, Wt::WAbstractItemModel *model, int numRows=-1, bool firstLineIsHeaders=true)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void readFromCsv </td> <td>(</td> <td class="paramtype">std::istream & </td> <td class="paramname"><em>f</em>, </td> </tr> <tr> <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> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>numRows</em> = <code>-1</code>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">bool </td> <td class="paramname"><em>firstLineIsHeaders</em> = <code>true</code> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>Utility function that reads a model from a CSV file. </p> <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; } } </pre></div> </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>