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<div class="navpath"><a class="el" href="namespaceWt.html">Wt</a>::<a class="el" href="classWt_1_1WAggregateProxyModel.html">WAggregateProxyModel</a>
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<h1>Wt::WAggregateProxyModel Class Reference<br>
<small>
[<a class="el" href="group__modelview.html">Model/view system</a>]</small>
</h1><!-- doxytag: class="Wt::WAggregateProxyModel" --><!-- doxytag: inherits="Wt::WAbstractProxyModel" -->A proxy model for Wt's item models that provides column aggregation.
<a href="#_details">More...</a>
<p>
<code>#include <Wt/WAggregateProxyModel></code>
<p>
<div class="dynheader">
Inheritance diagram for Wt::WAggregateProxyModel:</div>
<div class="dynsection">
<p><center><img src="classWt_1_1WAggregateProxyModel__inherit__graph.png" border="0" usemap="#Wt_1_1WAggregateProxyModel__inherit__map" alt="Inheritance graph"></center>
<map name="Wt_1_1WAggregateProxyModel__inherit__map">
<area shape="rect" href="classWt_1_1WAbstractProxyModel.html" title="An abstract proxy model for Wt's item models." alt="" coords="11,155,184,181"><area shape="rect" href="classWt_1_1WAbstractItemModel.html" title="An abstract model for use with Wt's view classes." alt="" coords="15,80,180,107"><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><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>
<p>
<a href="classWt_1_1WAggregateProxyModel-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#6c7afd5908bad7f007f30f100b991c78">WAggregateProxyModel</a> (<a class="el" href="classWt_1_1WObject.html">WObject</a> *parent=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <a href="#6c7afd5908bad7f007f30f100b991c78"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="cecfb768c8cd2fbb0ba7c2aeb90418d0"></a><!-- doxytag: member="Wt::WAggregateProxyModel::~WAggregateProxyModel" ref="cecfb768c8cd2fbb0ba7c2aeb90418d0" args="()" -->
virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#cecfb768c8cd2fbb0ba7c2aeb90418d0">~WAggregateProxyModel</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#dd590f7e0789812c73874ab2bd4161bf">addAggregate</a> (int parentColumn, int firstColumn, int lastColumn)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Adds a new column aggregation definition. <a href="#dd590f7e0789812c73874ab2bd4161bf"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="2bfba95d10664dfecbbf8360c7612f93"></a><!-- doxytag: member="Wt::WAggregateProxyModel::removeAggregate" ref="2bfba95d10664dfecbbf8360c7612f93" args="(int parentColumn)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#2bfba95d10664dfecbbf8360c7612f93">removeAggregate</a> (int parentColumn)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Removes an aggregate that was previously added. <br></td></tr>
<tr><td class="memItemLeft" nowrap 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_1WAggregateProxyModel.html#bd53119f51f426bbf3e332227a7c140f">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="#bd53119f51f426bbf3e332227a7c140f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap 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_1WAggregateProxyModel.html#219cfab137c4e6b5fcdcfdaa00f2c652">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="#219cfab137c4e6b5fcdcfdaa00f2c652"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#dcd5632ba87b439d87b2470bf028cf28">setSourceModel</a> (<a class="el" href="classWt_1_1WAbstractItemModel.html">WAbstractItemModel</a> *sourceModel)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the source model. <a href="#dcd5632ba87b439d87b2470bf028cf28"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#ccddd20f3e9110bb7a1797ec9ed84085">expandColumn</a> (int column)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Expands a column. <a href="#ccddd20f3e9110bb7a1797ec9ed84085"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#44082771ca19bdcd648e4cb6c4cf08be">collapseColumn</a> (int column)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Collapses a column. <a href="#44082771ca19bdcd648e4cb6c4cf08be"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#afec39e7801f9c4b19d6df601a130445">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="#afec39e7801f9c4b19d6df601a130445"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#bef979ff954c636e6a2b5b3d429a06a0">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="#bef979ff954c636e6a2b5b3d429a06a0"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual WFlags< <a class="el" href="group__modelview.html#gfb18b4339442f1327c2a65850f3d8a53">HeaderFlag</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#ad873c5eeb40d473bb7127cfc2022658">headerFlags</a> (int section, <a class="el" href="namespaceWt.html#2a8d45559e16a0185bf61bfad0a67912">Orientation</a> orientation=Horizontal) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the flags for a header. <a href="#ad873c5eeb40d473bb7127cfc2022658"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#e70467185337c5ef4fd1a14a2f1397f8">setHeaderData</a> (int section, <a class="el" href="namespaceWt.html#2a8d45559e16a0185bf61bfad0a67912">Orientation</a> orientation, const boost::any &value, int role=EditRole)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets header data for a column or row. <a href="#e70467185337c5ef4fd1a14a2f1397f8"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual boost::any </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#ccb1c7428e090aa881a30eefa15141c1">headerData</a> (int section, <a class="el" href="namespaceWt.html#2a8d45559e16a0185bf61bfad0a67912">Orientation</a> orientation=Horizontal, int role=DisplayRole) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the row or column header data. <a href="#ccb1c7428e090aa881a30eefa15141c1"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap 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_1WAggregateProxyModel.html#be70985414fe0634927f72dbfb8f5341">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="#be70985414fe0634927f72dbfb8f5341"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap 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_1WAggregateProxyModel.html#7733a1eacce2d55230776d6b472cf14c">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="#7733a1eacce2d55230776d6b472cf14c"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAggregateProxyModel.html#a5fc80d856911d48ed0bd2efd5c376e2">sort</a> (int column, <a class="el" href="group__modelview.html#g4173856040cf108a9c7360927a43ebac">SortOrder</a> order=AscendingOrder)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sorts the model according to a particular column. <a href="#a5fc80d856911d48ed0bd2efd5c376e2"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A proxy model for Wt's item models that provides column aggregation.
<p>
This proxy model does not store data itself, but presents data from a source model, and presents methods to organize columns using aggregation, through which a user may navigate (usually to obtain more detailed results related to a single aggregate quantity).<p>
To use this proxy model, you should provide a source model using <a class="el" href="classWt_1_1WAggregateProxyModel.html#dcd5632ba87b439d87b2470bf028cf28" title="Sets the source model.">setSourceModel()</a>, and define column ranges that can be aggregated using <a class="el" href="classWt_1_1WAggregateProxyModel.html#dd590f7e0789812c73874ab2bd4161bf" title="Adds a new column aggregation definition.">addAggregate()</a>.<p>
Example: <div class="fragment"><pre class="fragment"> <span class="keywordtype">int</span> COLS = 18;
<span class="keywordtype">int</span> ROWS = 20;
<span class="comment">// set up the source model</span>
model_ = <span class="keyword">new</span> WStandardItemModel(0, COLS);
std::string columns[] = {
<span class="stringliteral">"Supplier"</span>,
<span class="stringliteral">"2004"</span>,
<span class="stringliteral">"Q1"</span>,
<span class="stringliteral">"January"</span>,
<span class="stringliteral">"February"</span>,
<span class="stringliteral">"March"</span>,
<span class="stringliteral">"Q2"</span>,
<span class="stringliteral">"April"</span>,
<span class="stringliteral">"May"</span>,
<span class="stringliteral">"June"</span>,
<span class="stringliteral">"Q3"</span>,
<span class="stringliteral">"July"</span>,
<span class="stringliteral">"August"</span>,
<span class="stringliteral">"September"</span>,
<span class="stringliteral">"Q4"</span>,
<span class="stringliteral">"October"</span>,
<span class="stringliteral">"November"</span>,
<span class="stringliteral">"December"</span>
};
<span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i < COLS; ++i) {
model_->setHeaderData(i, <a class="code" href="namespaceWt.html#2a8d45559e16a0185bf61bfad0a67912c2ebf22b096a22b18eef23e736aa2e28" title="Horizontal.">Horizontal</a>, columns[i]);
}
<span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i < ROWS; ++i) {
model_->insertRow(i);
<span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> j = 0; j < COLS; ++j)
model_->setData(i, j, <span class="stringliteral">"col "</span> + boost::lexical_cast<std::string>(j));
}
<span class="comment">// set up the proxy model</span>
<a class="code" href="classWt_1_1WAggregateProxyModel.html#6c7afd5908bad7f007f30f100b991c78" title="Constructor.">WAggregateProxyModel</a> *proxy = <span class="keyword">new</span> <a class="code" href="classWt_1_1WAggregateProxyModel.html#6c7afd5908bad7f007f30f100b991c78" title="Constructor.">WAggregateProxyModel</a>();
proxy->setSourceModel(model_);
proxy->addAggregate(1, 2, 17);
proxy->addAggregate(2, 3, 5);
proxy->addAggregate(6, 7, 9);
proxy->addAggregate(10, 11, 13);
proxy->addAggregate(14, 15, 17);
proxy->expandColumn(1); <span class="comment">// expand 2004 -> Q1 Q2 Q3 Q4</span>
<span class="comment">// define a view</span>
treeView_ = <span class="keyword">new</span> WTreeView(root());
treeView_->setColumnBorder(<a class="code" href="group__style.html#gg9686ea88ce4db2c0a12ea84452f60133cf5dee884803e93b444f8bd222956bd6" title="Color black.">Wt::black</a>);
treeView_->setModel(proxy);
treeView_->setColumnWidth(0, 160);
treeView_->setColumnResizeEnabled(<span class="keyword">true</span>);
treeView_->setSortingEnabled(<span class="keyword">true</span>);
</pre></div><p>
This example would render like this:<p>
<div align="center">
<img src="WAggregateProxyModel-1.png" alt="WAggregateProxyModel-1.png">
<p><strong>A WTreeView using a WAggregateProxyModel</strong></p></div>
<dl class="note" compact><dt><b>Note:</b></dt><dd>This model does not support dynamic changes to the column definition of the source model (i.e. insertions or deletions of source model columns). </dd></dl>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="6c7afd5908bad7f007f30f100b991c78"></a><!-- doxytag: member="Wt::WAggregateProxyModel::WAggregateProxyModel" ref="6c7afd5908bad7f007f30f100b991c78" args="(WObject *parent=0)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">Wt::WAggregateProxyModel::WAggregateProxyModel </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classWt_1_1WObject.html">WObject</a> * </td>
<td class="paramname"> <em>parent</em> = <code>0</code> </td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Constructor.
<p>
Sets up the proxy without aggregation functionality.
</div>
</div><p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="dd590f7e0789812c73874ab2bd4161bf"></a><!-- doxytag: member="Wt::WAggregateProxyModel::addAggregate" ref="dd590f7e0789812c73874ab2bd4161bf" args="(int parentColumn, int firstColumn, int lastColumn)" -->
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<td class="memname">void Wt::WAggregateProxyModel::addAggregate </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>parentColumn</em>, </td>
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<td class="paramtype">int </td>
<td class="paramname"> <em>firstColumn</em>, </td>
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<td class="paramtype">int </td>
<td class="paramname"> <em>lastColumn</em></td><td> </td>
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<p>
Adds a new column aggregation definition.
<p>
The <code>parentColumn</code> is the column index in the source model that acts as an aggregate for columns <code>firstColumn</code> to <code>lastColumn</code>. <code>parentColumn</code> must border the range defined by <code>firstColumn</code> to <code>lastColumn:</code> <div class="fragment"><pre class="fragment"> parentColumn == firstColumn - 1 || parentColumn == lastColumn + 1
</pre></div><p>
Note that column parameters reference column indexes in the source model.<p>
Aggregation definitions can be nested, but should be strictly hierarchical.<p>
The aggregate column will initially be collapsed.<p>
Only one aggregate can be defined per <code>parentColumn</code>.
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<a class="anchor" name="bd53119f51f426bbf3e332227a7c140f"></a><!-- doxytag: member="Wt::WAggregateProxyModel::mapFromSource" ref="bd53119f51f426bbf3e332227a7c140f" args="(const WModelIndex &sourceIndex) const " -->
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<td class="memname"><a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> Wt::WAggregateProxyModel::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>
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<p>
Maps a source model index to the proxy model.
<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_1WAggregateProxyModel.html#219cfab137c4e6b5fcdcfdaa00f2c652" title="Maps a proxy model index to the source model.">mapToSource()</a>.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAggregateProxyModel.html#219cfab137c4e6b5fcdcfdaa00f2c652" title="Maps a proxy model index to the source model.">mapToSource()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractProxyModel.html#856d190cc66edcf05462e2476f43b01d">Wt::WAbstractProxyModel</a>.</p>
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<a class="anchor" name="219cfab137c4e6b5fcdcfdaa00f2c652"></a><!-- doxytag: member="Wt::WAggregateProxyModel::mapToSource" ref="219cfab137c4e6b5fcdcfdaa00f2c652" args="(const WModelIndex &proxyIndex) const " -->
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<td class="memname"><a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> Wt::WAggregateProxyModel::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>
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<p>
Maps a proxy model index to the source model.
<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" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAggregateProxyModel.html#bd53119f51f426bbf3e332227a7c140f" title="Maps a source model index to the proxy model.">mapFromSource()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractProxyModel.html#c36b0ee3110073578da8b999d1882bf7">Wt::WAbstractProxyModel</a>.</p>
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<a class="anchor" name="dcd5632ba87b439d87b2470bf028cf28"></a><!-- doxytag: member="Wt::WAggregateProxyModel::setSourceModel" ref="dcd5632ba87b439d87b2470bf028cf28" args="(WAbstractItemModel *sourceModel)" -->
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<td class="memname">void Wt::WAggregateProxyModel::setSourceModel </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classWt_1_1WAbstractItemModel.html">WAbstractItemModel</a> * </td>
<td class="paramname"> <em>sourceModel</em> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Sets the source model.
<p>
The source model provides the actual data for the proxy model.<p>
Ownership of the source model is <em>not</em> transferred.
<p>Reimplemented from <a class="el" href="classWt_1_1WAbstractProxyModel.html#80f03a23bcd5d34eef1091a4891cda87">Wt::WAbstractProxyModel</a>.</p>
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<a class="anchor" name="ccddd20f3e9110bb7a1797ec9ed84085"></a><!-- doxytag: member="Wt::WAggregateProxyModel::expandColumn" ref="ccddd20f3e9110bb7a1797ec9ed84085" args="(int column)" -->
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<td class="memname">void Wt::WAggregateProxyModel::expandColumn </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>column</em> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Expands a column.
<p>
Expands a column. This may only be called by a view when the <a class="el" href="group__modelview.html#ggfb18b4339442f1327c2a65850f3d8a5355020edcd8019b7fd0b330283b194929" title="Flag that indicates that the column can be expanded.">Wt::ColumnIsCollapsed</a> flag is set.<p>
The default implementation does nothing.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAggregateProxyModel.html" title="A proxy model for Wt's item models that provides column aggregation.">WAggregateProxyModel</a> </dd></dl>
<p>Reimplemented from <a class="el" href="classWt_1_1WAbstractItemModel.html#d7da483e201a6a0d717438049ce1f1d1">Wt::WAbstractItemModel</a>.</p>
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<a class="anchor" name="44082771ca19bdcd648e4cb6c4cf08be"></a><!-- doxytag: member="Wt::WAggregateProxyModel::collapseColumn" ref="44082771ca19bdcd648e4cb6c4cf08be" args="(int column)" -->
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<td class="memname">void Wt::WAggregateProxyModel::collapseColumn </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>column</em> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Collapses a column.
<p>
Collapses a column. This may only be called by a view when the <a class="el" href="group__modelview.html#ggfb18b4339442f1327c2a65850f3d8a53db54e2a704ae37581af6cc33828fef71" title="Flag that indicates that the column was expanded to the left.">Wt::ColumnIsExpandedLeft</a> or <a class="el" href="group__modelview.html#ggfb18b4339442f1327c2a65850f3d8a53b8f2b2845555220afc9c3c24c43194cd" title="Flag that indicates that the column was expanded to the right.">Wt::ColumnIsExpandedRight</a> flag is set.<p>
The default implementation does nothing.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAggregateProxyModel.html" title="A proxy model for Wt's item models that provides column aggregation.">WAggregateProxyModel</a> </dd></dl>
<p>Reimplemented from <a class="el" href="classWt_1_1WAbstractItemModel.html#ccd1f651c0b01ae897a52b9ad4b0f553">Wt::WAbstractItemModel</a>.</p>
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<a class="anchor" name="afec39e7801f9c4b19d6df601a130445"></a><!-- doxytag: member="Wt::WAggregateProxyModel::columnCount" ref="afec39e7801f9c4b19d6df601a130445" args="(const WModelIndex &parent=WModelIndex()) const " -->
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<td class="memname">int Wt::WAggregateProxyModel::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>
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<p>
Returns the number of columns.
<p>
This returns the number of columns at index <code>parent</code>.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAggregateProxyModel.html#bef979ff954c636e6a2b5b3d429a06a0" title="Returns the number of rows.">rowCount()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractItemModel.html#bcf7912a95a0a60f8e9b1c37d30b8383">Wt::WAbstractItemModel</a>.</p>
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<a class="anchor" name="bef979ff954c636e6a2b5b3d429a06a0"></a><!-- doxytag: member="Wt::WAggregateProxyModel::rowCount" ref="bef979ff954c636e6a2b5b3d429a06a0" args="(const WModelIndex &parent=WModelIndex()) const " -->
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<td class="memname">int Wt::WAggregateProxyModel::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>
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<p>
Returns the number of rows.
<p>
This returns the number of rows at index <code>parent</code>.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAggregateProxyModel.html#afec39e7801f9c4b19d6df601a130445" title="Returns the number of columns.">columnCount()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractItemModel.html#b0709a8f71fd5df882f29bb29fd055f0">Wt::WAbstractItemModel</a>.</p>
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<a class="anchor" name="ad873c5eeb40d473bb7127cfc2022658"></a><!-- doxytag: member="Wt::WAggregateProxyModel::headerFlags" ref="ad873c5eeb40d473bb7127cfc2022658" args="(int section, Orientation orientation=Horizontal) const " -->
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<td class="memname">WFlags< <a class="el" href="group__modelview.html#gfb18b4339442f1327c2a65850f3d8a53">HeaderFlag</a> > Wt::WAggregateProxyModel::headerFlags </td>
<td>(</td>
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<td class="paramtype"><a class="el" href="namespaceWt.html#2a8d45559e16a0185bf61bfad0a67912">Orientation</a> </td>
<td class="paramname"> <em>orientation</em> = <code>Horizontal</code></td><td> </td>
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<p>
Returns the flags for a header.
<p>
The default implementation returns no flags set.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="group__modelview.html#gfb18b4339442f1327c2a65850f3d8a53" title="Flags that indicate header options.">Wt::HeaderFlag</a> </dd></dl>
<p>Reimplemented from <a class="el" href="classWt_1_1WAbstractItemModel.html#6bb2a7e70f816606351be4a23c453a49">Wt::WAbstractItemModel</a>.</p>
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<a class="anchor" name="e70467185337c5ef4fd1a14a2f1397f8"></a><!-- doxytag: member="Wt::WAggregateProxyModel::setHeaderData" ref="e70467185337c5ef4fd1a14a2f1397f8" args="(int section, Orientation orientation, const boost::any &value, int role=EditRole)" -->
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<td class="memname">bool Wt::WAggregateProxyModel::setHeaderData </td>
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<td class="paramtype">int </td>
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<td class="paramtype"><a class="el" href="namespaceWt.html#2a8d45559e16a0185bf61bfad0a67912">Orientation</a> </td>
<td class="paramname"> <em>orientation</em>, </td>
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<td class="paramname"> <em>role</em> = <code>EditRole</code></td><td> </td>
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<td></td><td></td><td><code> [virtual]</code></td>
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<p>
Sets header data for a column or row.
<p>
Returns <code>true</code> if the operation was successful.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAggregateProxyModel.html#ccb1c7428e090aa881a30eefa15141c1" title="Returns the row or column header data.">headerData()</a> </dd></dl>
<p>Reimplemented from <a class="el" href="classWt_1_1WAbstractItemModel.html#57f5d417f933440db0d38ece7dd370f4">Wt::WAbstractItemModel</a>.</p>
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<a class="anchor" name="ccb1c7428e090aa881a30eefa15141c1"></a><!-- doxytag: member="Wt::WAggregateProxyModel::headerData" ref="ccb1c7428e090aa881a30eefa15141c1" args="(int section, Orientation orientation=Horizontal, int role=DisplayRole) const " -->
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<td></td>
<td class="paramtype"><a class="el" href="namespaceWt.html#2a8d45559e16a0185bf61bfad0a67912">Orientation</a> </td>
<td class="paramname"> <em>orientation</em> = <code>Horizontal</code>, </td>
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<td class="paramname"> <em>role</em> = <code>DisplayRole</code></td><td> </td>
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<p>
Returns the row or column header data.
<p>
When <code>orientation</code> is <a class="el" href="namespaceWt.html#2a8d45559e16a0185bf61bfad0a67912c2ebf22b096a22b18eef23e736aa2e28">Horizontal</a>, <code>section</code> is a column number, when <code>orientation</code> is <a class="el" href="namespaceWt.html#2a8d45559e16a0185bf61bfad0a67912f916b7ec24727db2d972f0770170c7f5">Vertical</a>, <code>section</code> is a row number.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAbstractProxyModel.html#816f887f847e838e6b2cb3539f1614cd" title="Returns data at a specific model index.">data()</a>, <a class="el" href="classWt_1_1WAggregateProxyModel.html#e70467185337c5ef4fd1a14a2f1397f8" title="Sets header data for a column or row.">setHeaderData()</a> </dd></dl>
<p>Reimplemented from <a class="el" href="classWt_1_1WAbstractItemModel.html#86bbab7c809fce4de9b5cb543b2fb124">Wt::WAbstractItemModel</a>.</p>
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<a class="anchor" name="be70985414fe0634927f72dbfb8f5341"></a><!-- doxytag: member="Wt::WAggregateProxyModel::parent" ref="be70985414fe0634927f72dbfb8f5341" args="(const WModelIndex &index) const " -->
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<td class="memname"><a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> Wt::WAggregateProxyModel::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>
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<p>
Returns the parent for a model index.
<p>
You should use <a class="el" href="classWt_1_1WAbstractItemModel.html#c837a73fe423255035ffb076946de122" 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>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAggregateProxyModel.html#7733a1eacce2d55230776d6b472cf14c" 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#da454d45706ca0c1a0921dedd351c48c">Wt::WAbstractItemModel</a>.</p>
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<a class="anchor" name="7733a1eacce2d55230776d6b472cf14c"></a><!-- doxytag: member="Wt::WAggregateProxyModel::index" ref="7733a1eacce2d55230776d6b472cf14c" args="(int row, int column, const WModelIndex &parent=WModelIndex()) const " -->
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<td class="memname"><a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> Wt::WAggregateProxyModel::index </td>
<td>(</td>
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<td class="paramname"> <em>row</em>, </td>
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<td class="paramtype">int </td>
<td class="paramname"> <em>column</em>, </td>
</tr>
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<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>
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<td></td><td></td><td> const<code> [virtual]</code></td>
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<p>
Returns the child index for the given row and column.
<p>
When implementing this method, you can use <a class="el" href="classWt_1_1WAbstractItemModel.html#c837a73fe423255035ffb076946de122" 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>
If the location is invalid (out of bounds at the parent), then an invalid index must be returned.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAggregateProxyModel.html#be70985414fe0634927f72dbfb8f5341" title="Returns the parent for a model index.">parent()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractItemModel.html#83f37bf04b8574b328c139b02523b8cb">Wt::WAbstractItemModel</a>.</p>
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<a class="anchor" name="a5fc80d856911d48ed0bd2efd5c376e2"></a><!-- doxytag: member="Wt::WAggregateProxyModel::sort" ref="a5fc80d856911d48ed0bd2efd5c376e2" args="(int column, SortOrder order=AscendingOrder)" -->
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<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>column</em>, </td>
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<td></td>
<td class="paramtype"><a class="el" href="group__modelview.html#g4173856040cf108a9c7360927a43ebac">Wt::SortOrder</a> </td>
<td class="paramname"> <em>order</em> = <code>AscendingOrder</code></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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<p>
Sorts the model according to a particular column.
<p>
If the model supports sorting, then it should emit the <a class="el" href="classWt_1_1WAbstractItemModel.html#abe99309231808a48c8f1db2c462f8e2" title="Signal emitted when the layout is about to be changed.">layoutAboutToBeChanged()</a> signal, rearrange its items, and afterwards emit the <a class="el" href="classWt_1_1WAbstractItemModel.html#5a6a3810afb5333405887df52827db02" title="Signal emitted when the layout is changed.">layoutChanged()</a> signal.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAbstractItemModel.html#abe99309231808a48c8f1db2c462f8e2" title="Signal emitted when the layout is about to be changed.">layoutAboutToBeChanged()</a>, <a class="el" href="classWt_1_1WAbstractItemModel.html#5a6a3810afb5333405887df52827db02" title="Signal emitted when the layout is changed.">layoutChanged()</a> </dd></dl>
<p>Reimplemented from <a class="el" href="classWt_1_1WAbstractItemModel.html#133931424d4daa8422bcdea911cda713">Wt::WAbstractItemModel</a>.</p>
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