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<title>Wt: Wt::WItemSelectionModel Class Reference</title>
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<div class="navpath"><a class="el" href="namespaceWt.html">Wt</a>::<a class="el" href="classWt_1_1WItemSelectionModel.html">WItemSelectionModel</a>
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<h1>Wt::WItemSelectionModel Class Reference<br>
<small>
[<a class="el" href="group__modelview.html">Model/view system</a>]</small>
</h1><!-- doxytag: class="Wt::WItemSelectionModel" --><!-- doxytag: inherits="Wt::WObject" -->A class that represents a selection for a <a class="el" href="classWt_1_1WAbstractItemView.html" title="An abstract base class for item views.">WAbstractItemView</a>.
<a href="#_details">More...</a>
<p>
<code>#include <Wt/WItemSelectionModel></code>
<p>
<div class="dynheader">
Inheritance diagram for Wt::WItemSelectionModel:</div>
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<p><center><img src="classWt_1_1WItemSelectionModel__inherit__graph.png" border="0" usemap="#Wt_1_1WItemSelectionModel__inherit__map" alt="Inheritance graph"></center>
<map name="Wt_1_1WItemSelectionModel__inherit__map">
<area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="43,5,139,32"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>
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<a href="classWt_1_1WItemSelectionModel-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="42fb83302389cc2942cc09a198c0ee00"></a><!-- doxytag: member="Wt::WItemSelectionModel::model" ref="42fb83302389cc2942cc09a198c0ee00" args="() const " -->
<a class="el" href="classWt_1_1WAbstractItemModel.html">WAbstractItemModel</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WItemSelectionModel.html#42fb83302389cc2942cc09a198c0ee00">model</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the <a class="el" href="classWt_1_1WAbstractItemModel.html" title="An abstract model for use with Wt's view classes.">WAbstractItemModel</a>. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">WModelIndexSet </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WItemSelectionModel.html#4c366757fa7e6b5b6519d34e3c2ac084">selectedIndexes</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the set of selected items. <a href="#4c366757fa7e6b5b6519d34e3c2ac084"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WItemSelectionModel.html#96e391104f8846557ed95f5a93f4f452">isSelected</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 wheter an item is selected. <a href="#96e391104f8846557ed95f5a93f4f452"></a><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_1WItemSelectionModel.html#cbf2a0659f9b5f04becbf5dd02aff9b3">setSelectionBehavior</a> (<a class="el" href="namespaceWt.html#04aecd34ae0810219e82208a9890de13">SelectionBehavior</a> behavior)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the selection behaviour. <a href="#cbf2a0659f9b5f04becbf5dd02aff9b3"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="namespaceWt.html#04aecd34ae0810219e82208a9890de13">SelectionBehavior</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WItemSelectionModel.html#7bddf47881159cdd36651891954f3a39">selectionBehavior</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the selection behaviour. <a href="#7bddf47881159cdd36651891954f3a39"></a><br></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
A class that represents a selection for a <a class="el" href="classWt_1_1WAbstractItemView.html" title="An abstract base class for item views.">WAbstractItemView</a>.
<p>
This model is currently only used by <a class="el" href="classWt_1_1WTreeView.html" title="A view class that displays a model as a tree or tree table.">WTreeView</a>, and plays only a role in drag & drop of an item selection.<p>
When an item selection is dragged from a view widget, the generated drop events will have as source object (see <a class="el" href="classWt_1_1WDropEvent.html#dfe27a00e34b7322a52bc7dc73d4d5af" title="Returns the source of the drag&drop operation.">WDropEvent::source()</a>) this selection model.<p>
Although this class does not (yet) allow you to modify the selection, note that manipulations to the model may modify the selection (row insertions and removals may shift the selection, and row deletions may shrink the selection).<p>
<dl class="note" compact><dt><b>Note:</b></dt><dd>Currently this class cannot be shared between multiple views.</dd></dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html" title="A view class that displays a model as a tree or tree table.">WTreeView</a>, <a class="el" href="classWt_1_1WAbstractItemModel.html" title="An abstract model for use with Wt's view classes.">WAbstractItemModel</a> </dd></dl>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="4c366757fa7e6b5b6519d34e3c2ac084"></a><!-- doxytag: member="Wt::WItemSelectionModel::selectedIndexes" ref="4c366757fa7e6b5b6519d34e3c2ac084" args="() const " -->
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<td class="memname">WModelIndexSet Wt::WItemSelectionModel::selectedIndexes </td>
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<td class="paramname"> </td>
<td> ) </td>
<td> const<code> [inline]</code></td>
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<p>
Returns the set of selected items.
<p>
The model indexes are returned as a set, topologically ordered (in the order they appear in the view).
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<a class="anchor" name="96e391104f8846557ed95f5a93f4f452"></a><!-- doxytag: member="Wt::WItemSelectionModel::isSelected" ref="96e391104f8846557ed95f5a93f4f452" args="(const WModelIndex &index) const " -->
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<td class="memname">bool Wt::WItemSelectionModel::isSelected </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</td>
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<p>
Returns wheter an item is selected.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WItemSelectionModel.html#4c366757fa7e6b5b6519d34e3c2ac084" title="Returns the set of selected items.">selectedIndexes()</a> </dd></dl>
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<a class="anchor" name="cbf2a0659f9b5f04becbf5dd02aff9b3"></a><!-- doxytag: member="Wt::WItemSelectionModel::setSelectionBehavior" ref="cbf2a0659f9b5f04becbf5dd02aff9b3" args="(SelectionBehavior behavior)" -->
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<td class="memname">void Wt::WItemSelectionModel::setSelectionBehavior </td>
<td>(</td>
<td class="paramtype"><a class="el" href="namespaceWt.html#04aecd34ae0810219e82208a9890de13">SelectionBehavior</a> </td>
<td class="paramname"> <em>behavior</em> </td>
<td> ) </td>
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<p>
Sets the selection behaviour.
<p>
By default, the selection contains rows (<a class="el" href="namespaceWt.html#04aecd34ae0810219e82208a9890de13f392e7f86ea1d0807e54de5739011239">SelectRows</a>), in which case model indexes will always be have column 0, but represent the whole row.<p>
Alternatively, you can allow selection for individual items (<a class="el" href="namespaceWt.html#04aecd34ae0810219e82208a9890de13fcf79c96af1f3bd64b7b143fd1ec1126">SelectItems</a>).
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<a class="anchor" name="7bddf47881159cdd36651891954f3a39"></a><!-- doxytag: member="Wt::WItemSelectionModel::selectionBehavior" ref="7bddf47881159cdd36651891954f3a39" args="() const " -->
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<td class="memname"><a class="el" href="namespaceWt.html#04aecd34ae0810219e82208a9890de13">SelectionBehavior</a> Wt::WItemSelectionModel::selectionBehavior </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td> const<code> [inline]</code></td>
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<p>
Returns the selection behaviour.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WItemSelectionModel.html#cbf2a0659f9b5f04becbf5dd02aff9b3" title="Sets the selection behaviour.">setSelectionBehavior()</a> </dd></dl>
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