<!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: Wt::WReadOnlyProxyModel Class Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css" /> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="search/search.js"></script> <script type="text/javascript"> $(document).ready(function() { searchBox.OnSelectItem(0); }); </script> </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  <span id="projectnumber">3.2.3</span> </div> </td> </tr> </tbody> </table> </div> <!-- Generated by Doxygen 1.7.5.1 --> <script type="text/javascript"> var searchBox = new SearchBox("searchBox", "search",false,'Search'); </script> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li class="current"><a href="annotated.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li> <div id="MSearchBox" class="MSearchBoxInactive"> <span class="left"> <img id="MSearchSelect" src="search/mag_sel.png" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" alt=""/> <input type="text" id="MSearchField" value="Search" accesskey="S" onfocus="searchBox.OnSearchFieldFocus(true)" onblur="searchBox.OnSearchFieldFocus(false)" 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href="group__modelview.html">Model/view system</a></div></div> </div> </div> <div class="contents"> <!-- doxytag: class="Wt::WReadOnlyProxyModel" --><!-- doxytag: inherits="Wt::WAbstractProxyModel" --> <p>A read-only wrapper for a source model. <a href="classWt_1_1WReadOnlyProxyModel.html#details">More...</a></p> <p><code>#include <Wt/WReadOnlyProxyModel></code></p> <div class="dynheader"> Inheritance diagram for Wt::WReadOnlyProxyModel:</div> <div class="dyncontent"> <div class="center"><img src="classWt_1_1WReadOnlyProxyModel__inherit__graph.png" border="0" usemap="#Wt_1_1WReadOnlyProxyModel_inherit__map" alt="Inheritance graph"/></div> <map name="Wt_1_1WReadOnlyProxyModel_inherit__map" id="Wt_1_1WReadOnlyProxyModel_inherit__map"> <area shape="rect" href="classWt_1_1WAbstractProxyModel.html" title="An abstract proxy model for Wt's item models." alt="" coords="9,155,185,181"/><area shape="rect" href="classWt_1_1WAbstractItemModel.html" title="An abstract model for use with Wt's view classes." alt="" coords="13,80,181,107"/><area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="49,5,145,32"/></map> <center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div> <p><a href="classWt_1_1WReadOnlyProxyModel-members.html">List of all members.</a></p> <table class="memberdecls"> <tr><td colspan="2"><h2><a name="pub-methods"></a> Public Member Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa47109293e0bb71513d7ae6c489b1d06"></a><!-- doxytag: member="Wt::WReadOnlyProxyModel::WReadOnlyProxyModel" ref="aa47109293e0bb71513d7ae6c489b1d06" args="(WObject *parent=0)" -->  </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#aa47109293e0bb71513d7ae6c489b1d06">WReadOnlyProxyModel</a> (<a class="el" href="classWt_1_1WObject.html">WObject</a> *parent=0)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#a50c17664a8d7a8efe462d9a2c57abb5d">mapFromSource</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &sourceIndex) const </td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Maps a source model index to the proxy model. <a href="#a50c17664a8d7a8efe462d9a2c57abb5d"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#a8db095c055d60c9eabf912dbf399d1ba">mapToSource</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &proxyIndex) const </td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Maps a proxy model index to the source model. <a href="#a8db095c055d60c9eabf912dbf399d1ba"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#a46d0d79621f99ecccd33ccf3c0023fa1">columnCount</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &parent=<a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a>()) const </td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the number of columns. <a href="#a46d0d79621f99ecccd33ccf3c0023fa1"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#a769b530620baa4bc41be931a1e3dde83">rowCount</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &parent=<a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a>()) const </td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the number of rows. <a href="#a769b530620baa4bc41be931a1e3dde83"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#ad8cc8e4d72ba28c37e35d552c94c1271">parent</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &index) const </td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the parent for a model index. <a href="#ad8cc8e4d72ba28c37e35d552c94c1271"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#ae1cffc9438d8d73b89eae554450f595d">index</a> (int row, int column, const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &parent=<a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a>()) const </td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the child index for the given row and column. <a href="#ae1cffc9438d8d73b89eae554450f595d"></a><br/></td></tr> </table> <hr/><a name="details" id="details"></a><h2>Detailed Description</h2> <div class="textblock"><p>A read-only wrapper for a source model. </p> <p>This is a simple proxy model which provides a read-only view on a source model. This is convenient for situations where you want to share a common read-only source model between different sessions. </p> </div><hr/><h2>Member Function Documentation</h2> <a class="anchor" id="a46d0d79621f99ecccd33ccf3c0023fa1"></a><!-- doxytag: member="Wt::WReadOnlyProxyModel::columnCount" ref="a46d0d79621f99ecccd33ccf3c0023fa1" args="(const WModelIndex &parent=WModelIndex()) const " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int Wt::WReadOnlyProxyModel::columnCount </td> <td>(</td> <td class="paramtype">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> & </td> <td class="paramname"><em>parent</em> = <code><a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a>()</code></td><td>)</td> <td> const<code> [virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <p>Returns the number of columns. </p> <p>This returns the number of columns at index <code>parent</code>.</p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#a769b530620baa4bc41be931a1e3dde83" title="Returns the number of rows.">rowCount()</a> </dd></dl> <p>Implements <a class="el" href="classWt_1_1WAbstractItemModel.html#abcf7912a95a0a60f8e9b1c37d30b8383">Wt::WAbstractItemModel</a>.</p> </div> </div> <a class="anchor" id="ae1cffc9438d8d73b89eae554450f595d"></a><!-- doxytag: member="Wt::WReadOnlyProxyModel::index" ref="ae1cffc9438d8d73b89eae554450f595d" args="(int row, int column, const WModelIndex &parent=WModelIndex()) const " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> Wt::WReadOnlyProxyModel::index </td> <td>(</td> <td class="paramtype">int </td> <td class="paramname"><em>row</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>column</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> & </td> <td class="paramname"><em>parent</em> = <code><a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a>()</code> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td> const<code> [virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <p>Returns the child index for the given row and column. </p> <p>When implementing this method, you can use <a class="el" href="classWt_1_1WAbstractItemModel.html#ac837a73fe423255035ffb076946de122" title="Creates a model index for the given row and column.">createIndex()</a> to create an index that corresponds to the item at <code>row</code> and <code>column</code> within <code>parent</code>.</p> <p>If the location is invalid (out of bounds at the parent), then an invalid index must be returned.</p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#ad8cc8e4d72ba28c37e35d552c94c1271" title="Returns the parent for a model index.">parent()</a> </dd></dl> <p>Implements <a class="el" href="classWt_1_1WAbstractItemModel.html#a83f37bf04b8574b328c139b02523b8cb">Wt::WAbstractItemModel</a>.</p> </div> </div> <a class="anchor" id="a50c17664a8d7a8efe462d9a2c57abb5d"></a><!-- doxytag: member="Wt::WReadOnlyProxyModel::mapFromSource" ref="a50c17664a8d7a8efe462d9a2c57abb5d" args="(const WModelIndex &sourceIndex) const " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> Wt::WReadOnlyProxyModel::mapFromSource </td> <td>(</td> <td class="paramtype">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> & </td> <td class="paramname"><em>sourceIndex</em></td><td>)</td> <td> const<code> [virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <p>Maps a source model index to the proxy model. </p> <p>This method returns a model index in the proxy model that corresponds to the model index <code>sourceIndex</code> in the source model. This method must only be implemented for source model indexes that are mapped and thus are the result of <a class="el" href="classWt_1_1WReadOnlyProxyModel.html#a8db095c055d60c9eabf912dbf399d1ba" title="Maps a proxy model index to the source model.">mapToSource()</a>.</p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#a8db095c055d60c9eabf912dbf399d1ba" title="Maps a proxy model index to the source model.">mapToSource()</a> </dd></dl> <p>Implements <a class="el" href="classWt_1_1WAbstractProxyModel.html#a856d190cc66edcf05462e2476f43b01d">Wt::WAbstractProxyModel</a>.</p> </div> </div> <a class="anchor" id="a8db095c055d60c9eabf912dbf399d1ba"></a><!-- doxytag: member="Wt::WReadOnlyProxyModel::mapToSource" ref="a8db095c055d60c9eabf912dbf399d1ba" args="(const WModelIndex &proxyIndex) const " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> Wt::WReadOnlyProxyModel::mapToSource </td> <td>(</td> <td class="paramtype">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> & </td> <td class="paramname"><em>proxyIndex</em></td><td>)</td> <td> const<code> [virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <p>Maps a proxy model index to the source model. </p> <p>This method returns a model index in the source model that corresponds to the proxy model index <code>proxyIndex</code>.</p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#a50c17664a8d7a8efe462d9a2c57abb5d" title="Maps a source model index to the proxy model.">mapFromSource()</a> </dd></dl> <p>Implements <a class="el" href="classWt_1_1WAbstractProxyModel.html#ac36b0ee3110073578da8b999d1882bf7">Wt::WAbstractProxyModel</a>.</p> </div> </div> <a class="anchor" id="ad8cc8e4d72ba28c37e35d552c94c1271"></a><!-- doxytag: member="Wt::WReadOnlyProxyModel::parent" ref="ad8cc8e4d72ba28c37e35d552c94c1271" args="(const WModelIndex &index) const " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> Wt::WReadOnlyProxyModel::parent </td> <td>(</td> <td class="paramtype">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> & </td> <td class="paramname"><em>index</em></td><td>)</td> <td> const<code> [virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <p>Returns the parent for a model index. </p> <p>An implementation should use <a class="el" href="classWt_1_1WAbstractItemModel.html#ac837a73fe423255035ffb076946de122" title="Creates a model index for the given row and column.">createIndex()</a> to create a model index that corresponds to the parent of a given index.</p> <p>Note that the index itself may be stale (referencing a row/column within the parent that is outside the model geometry), but its parent (identified by the <a class="el" href="classWt_1_1WModelIndex.html#a44aabe692bba87ba144c1ab9a7f98eb3" title="Returns the internal pointer.">WModelIndex::internalPointer()</a>) is referencing an existing parent. A stale index can only be used while the model geometry is being updated, i.e. during the emission of the corresponding [rows/columns](Being)[Removed/Inserted]() signals.</p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#ae1cffc9438d8d73b89eae554450f595d" title="Returns the child index for the given row and column.">index()</a> </dd></dl> <p>Implements <a class="el" href="classWt_1_1WAbstractItemModel.html#ada454d45706ca0c1a0921dedd351c48c">Wt::WAbstractItemModel</a>.</p> </div> </div> <a class="anchor" id="a769b530620baa4bc41be931a1e3dde83"></a><!-- doxytag: member="Wt::WReadOnlyProxyModel::rowCount" ref="a769b530620baa4bc41be931a1e3dde83" args="(const WModelIndex &parent=WModelIndex()) const " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int Wt::WReadOnlyProxyModel::rowCount </td> <td>(</td> <td class="paramtype">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> & </td> <td class="paramname"><em>parent</em> = <code><a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a>()</code></td><td>)</td> <td> const<code> [virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <p>Returns the number of rows. </p> <p>This returns the number of rows at index <code>parent</code>.</p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WReadOnlyProxyModel.html#a46d0d79621f99ecccd33ccf3c0023fa1" title="Returns the number of columns.">columnCount()</a> </dd></dl> <p>Implements <a class="el" href="classWt_1_1WAbstractItemModel.html#ab0709a8f71fd5df882f29bb29fd055f0">Wt::WAbstractItemModel</a>.</p> </div> </div> </div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> <a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Enumerator</a></div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </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>