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<title>KLinkItemSelectionModel</title>
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KDE 4.9 PyKDE API Reference
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<h1>KLinkItemSelectionModel Class Reference</h1>
<code>from PyKDE4.kdeui import *</code>
<p>
Inherits: QItemSelectionModel &#x2192; QObject<br />
<h2>Detailed Description</h2>
<p>Makes it possible to share a selection in multiple views which do not have the same source model
</p>
<p>
Although <a href="http://doc.trolltech.com/4.6/model-view-view.html#sharing-selections-between-views">multiple views can share the same QItemSelectionModel</a>, the views then need to have the same source model.
</p>
<p>
If there is a proxy model between the model and one of the views, or different proxy models in each, this class makes
it possible to share the selection between the views.
</p>
<p>
<div align="center"><img src="../images/kproxyitemselectionmodel-simple.png" /><p><strong> "Sharing a QItemSelectionModel between views on the same model is trivial" </strong></p></div>
<div align="center"><img src="../images/kproxyitemselectionmodel-error.png" /><p><strong> "If a proxy model is used, it is no longer possible to share the QItemSelectionModel directly" </strong></p></div>
<div align="center"><img src="../images/kproxyitemselectionmodel-solution.png" /><p><strong> "A KProxyItemSelectionModel can be used to map the selection through the proxy model" </strong></p></div>
</p>
<p>
<pre class="fragment">
QAbstractItemModel *model = getModel();
QSortFilterProxyModel *proxy = new QSortFilterProxyModel();
proxy-&gt;setSourceModel(model);
QTreeView *view1 = new QTreeView(splitter);
view1-&gt;setModel(model);
KProxyItemSelectionModel *view2SelectionModel = new KProxyItemSelectionModel( proxy, view1-&gt;selectionModel());
QTreeView *view2 = new QTreeView(splitter);
// Note that the QAbstractItemModel passed to KProxyItemSelectionModel must be the same as what is used in the view
view2-&gt;setModel(proxy);
view2-&gt;setSelectionModel( view2SelectionModel );
</pre>
</p>
<p>
<div align="center"><img src="../images/kproxyitemselectionmodel-complex.png" /><p><strong> "Arbitrarily complex proxy configurations on the same root model can be used" </strong></p></div>
</p>
<p>
<pre class="fragment">
QAbstractItemModel *model = getModel();
QSortFilterProxyModel *proxy1 = new QSortFilterProxyModel();
proxy1-&gt;setSourceModel(model);
QSortFilterProxyModel *proxy2 = new QSortFilterProxyModel();
proxy2-&gt;setSourceModel(proxy1);
QSortFilterProxyModel *proxy3 = new QSortFilterProxyModel();
proxy3-&gt;setSourceModel(proxy2);
QTreeView *view1 = new QTreeView(splitter);
view1-&gt;setModel(proxy3);
QSortFilterProxyModel *proxy4 = new QSortFilterProxyModel();
proxy4-&gt;setSourceModel(model);
QSortFilterProxyModel *proxy5 = new QSortFilterProxyModel();
proxy5-&gt;setSourceModel(proxy4);
KProxyItemSelectionModel *view2SelectionModel = new KProxyItemSelectionModel( proxy5, view1-&gt;selectionModel());
QTreeView *view2 = new QTreeView(splitter);
// Note that the QAbstractItemModel passed to KProxyItemSelectionModel must be the same as what is used in the view
view2-&gt;setModel(proxy5);
view2-&gt;setSelectionModel( view2SelectionModel );
</pre>
</p>
<p>
See also <a href="http://websvn.kde.org/trunk/KDE/kdelibs/kdeui/tests/proxymodeltestapp/proxyitemselectionwidget.cpp?view=markup">kdelibs/kdeui/tests/proxymodeltestapp/proxyitemselectionwidget.cpp</a>.
</p>
<p>
<dl class="since" compact><dt><b>Since:</b></dt><dd> 4.5
</dd></dl>
<dl class="author" compact><dt><b>Author:</b></dt><dd> Stephen Kelly &lt;steveire@gmail.com&gt; </dd></dl>
</p>
<table border="0" cellpadding="0" cellspacing="0"><tr><td colspan="2"><br><h2>Methods</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#KLinkItemSelectionModel">__init__</a> (self, QAbstractItemModel targetModel, QItemSelectionModel linkedItemSelectionModel, QObject parent=0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#select">select</a> (self, QModelIndex index, QItemSelectionModel::SelectionFlags command)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#select">select</a> (self, QItemSelection selection, QItemSelectionModel::SelectionFlags command)</td></tr>
</table>
<hr><h2>Method Documentation</h2><a class="anchor" name="KLinkItemSelectionModel"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">__init__</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QAbstractItemModel&nbsp;</td>
<td class="paramname"><em>targetModel</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QItemSelectionModel&nbsp;</td>
<td class="paramname"><em>linkedItemSelectionModel</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QObject&nbsp;</td>
<td class="paramname"><em>parent=0</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Constructor.
</p></div></div><a class="anchor" name="select"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> select</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QModelIndex&nbsp;</td>
<td class="paramname"><em>index</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QItemSelectionModel::SelectionFlags&nbsp;</td>
<td class="paramname"><em>command</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="select"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> select</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QItemSelection&nbsp;</td>
<td class="paramname"><em>selection</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QItemSelectionModel::SelectionFlags&nbsp;</td>
<td class="paramname"><em>command</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
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