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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Wt: Wt::WAbstractListModel Class Reference</title>
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<div class="navpath"><a class="el" href="namespaceWt.html">Wt</a>::<a class="el" href="classWt_1_1WAbstractListModel.html">WAbstractListModel</a>
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<h1>Wt::WAbstractListModel Class Reference<br>
<small>
[<a class="el" href="group__modelview.html">Model/view system</a>]</small>
</h1><!-- doxytag: class="Wt::WAbstractListModel" --><!-- doxytag: inherits="Wt::WAbstractItemModel" -->An abstract list model for use with Wt's view classes.
<a href="#_details">More...</a>
<p>
<code>#include <Wt/WAbstractListModel></code>
<p>
<div class="dynheader">
Inheritance diagram for Wt::WAbstractListModel:</div>
<div class="dynsection">
<p><center><img src="classWt_1_1WAbstractListModel__inherit__graph.png" border="0" usemap="#Wt_1_1WAbstractListModel__inherit__map" alt="Inheritance graph"></center>
<map name="Wt_1_1WAbstractListModel__inherit__map">
<area shape="rect" href="classWt_1_1WStringListModel.html" title="An model that manages a list of strings." alt="" coords="15,229,161,256"><area shape="rect" href="classWt_1_1WAbstractItemModel.html" title="An abstract model for use with Wt's view classes." alt="" coords="5,80,171,107"><area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="40,5,136,32"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>
<p>
<a href="classWt_1_1WAbstractListModel-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"><a class="anchor" name="c74d8359ff0806b4efe10ec34c8e1d4a"></a><!-- doxytag: member="Wt::WAbstractListModel::WAbstractListModel" ref="c74d8359ff0806b4efe10ec34c8e1d4a" args="(WObject *parent=0)" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAbstractListModel.html#c74d8359ff0806b4efe10ec34c8e1d4a">WAbstractListModel</a> (<a class="el" href="classWt_1_1WObject.html">WObject</a> *parent=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Create a new abstract list model. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="1476c92cf08ce4548a08858f45007746"></a><!-- doxytag: member="Wt::WAbstractListModel::~WAbstractListModel" ref="1476c92cf08ce4548a08858f45007746" args="()" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WAbstractListModel.html#1476c92cf08ce4548a08858f45007746">~WAbstractListModel</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <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_1WAbstractListModel.html#b5d047d66626660447a76f17109aef2e">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="#b5d047d66626660447a76f17109aef2e"></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_1WAbstractListModel.html#256e0cbdd9e62e1eef61063bd350d492">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="#256e0cbdd9e62e1eef61063bd350d492"></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_1WAbstractListModel.html#c1067d3ba070038275690deb2e9a40f4">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="#c1067d3ba070038275690deb2e9a40f4"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
An abstract list model for use with Wt's view classes.
<p>
An abstract list model specializes <a class="el" href="classWt_1_1WAbstractItemModel.html" title="An abstract model for use with Wt's view classes.">WAbstractItemModel</a> for one-dimensional lists (i.e. a model with 1 column and no children).<p>
It cannot be used directly but must be subclassed. Subclassed models must at least reimplement <a class="el" href="classWt_1_1WAbstractItemModel.html#b0709a8f71fd5df882f29bb29fd055f0" title="Returns the number of rows.">rowCount()</a> to return the number of rows, and <a class="el" href="classWt_1_1WAbstractItemModel.html#9112b74d160f916ef75fb6c1c09dd8fe" title="Returns data at a specific model index.">data()</a> to return data. <hr><h2>Member Function Documentation</h2>
<a class="anchor" name="b5d047d66626660447a76f17109aef2e"></a><!-- doxytag: member="Wt::WAbstractListModel::parent" ref="b5d047d66626660447a76f17109aef2e" args="(const WModelIndex &index) const " -->
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<td class="memname"><a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> Wt::WAbstractListModel::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_1WAbstractListModel.html#256e0cbdd9e62e1eef61063bd350d492" 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>
</div>
</div><p>
<a class="anchor" name="256e0cbdd9e62e1eef61063bd350d492"></a><!-- doxytag: member="Wt::WAbstractListModel::index" ref="256e0cbdd9e62e1eef61063bd350d492" 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::WAbstractListModel::index </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>row</em>, </td>
</tr>
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<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><td> </td>
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<td></td>
<td>)</td>
<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_1WAbstractListModel.html#b5d047d66626660447a76f17109aef2e" 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>
</div>
</div><p>
<a class="anchor" name="c1067d3ba070038275690deb2e9a40f4"></a><!-- doxytag: member="Wt::WAbstractListModel::columnCount" ref="c1067d3ba070038275690deb2e9a40f4" args="(const WModelIndex &parent=WModelIndex()) const " -->
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<td class="memname">int Wt::WAbstractListModel::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>
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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_1WAbstractItemModel.html#b0709a8f71fd5df882f29bb29fd055f0" 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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