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 <span id="projectnumber">3.2.1</span>
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<div class="title">Wt::WLayoutItemImpl Class Reference</div> </div>
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<p>An abstract base class for implementing layout managers.
<a href="classWt_1_1WLayoutItemImpl.html#details">More...</a></p>
<p><code>#include <Wt/WLayoutItemImpl></code></p>
<p>Inherited by Wt::Ext::LayoutItemImpl, and Wt::StdLayoutItemImpl.</p>
<p><a href="classWt_1_1WLayoutItemImpl-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="ad558805de90c6edc63aa7603f64d4c68"></a><!-- doxytag: member="Wt::WLayoutItemImpl::~WLayoutItemImpl" ref="ad558805de90c6edc63aa7603f64d4c68" args="()" -->
virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLayoutItemImpl.html#ad558805de90c6edc63aa7603f64d4c68">~WLayoutItemImpl</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLayoutItemImpl.html#a17f642513739083112ab2a69a05ca0a4">updateAddItem</a> (<a class="el" href="classWt_1_1WLayoutItem.html">WLayoutItem</a> *item)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Adds a layout <em>item</em>. <a href="#a17f642513739083112ab2a69a05ca0a4"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a34f32973eaa21e827dabdec5a797e2b6"></a><!-- doxytag: member="Wt::WLayoutItemImpl::updateRemoveItem" ref="a34f32973eaa21e827dabdec5a797e2b6" args="(WLayoutItem *item)=0" -->
virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLayoutItemImpl.html#a34f32973eaa21e827dabdec5a797e2b6">updateRemoveItem</a> (<a class="el" href="classWt_1_1WLayoutItem.html">WLayoutItem</a> *item)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Removes a layout <em>item</em>. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8ea165afae63f97652bdb6854f2300f7"></a><!-- doxytag: member="Wt::WLayoutItemImpl::update" ref="a8ea165afae63f97652bdb6854f2300f7" args="(WLayoutItem *item)=0" -->
virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLayoutItemImpl.html#a8ea165afae63f97652bdb6854f2300f7">update</a> (<a class="el" href="classWt_1_1WLayoutItem.html">WLayoutItem</a> *item)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Updates the layout. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aecaf3ff1b598f7aa99730b337e5ef2f6"></a><!-- doxytag: member="Wt::WLayoutItemImpl::parentWidget" ref="aecaf3ff1b598f7aa99730b337e5ef2f6" args="() const =0" -->
virtual <a class="el" href="classWt_1_1WWidget.html">WWidget</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLayoutItemImpl.html#aecaf3ff1b598f7aa99730b337e5ef2f6">parentWidget</a> () const =0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the widget for which this layout item participates in layout management. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2ea7b787edada76fc0c9b7908caf673a"></a><!-- doxytag: member="Wt::WLayoutItemImpl::setHint" ref="a2ea7b787edada76fc0c9b7908caf673a" args="(const std::string &name, const std::string &value)=0" -->
virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WLayoutItemImpl.html#a2ea7b787edada76fc0c9b7908caf673a">setHint</a> (const std::string &name, const std::string &value)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Provides a hint that can aid in layout strategy / algorithm. <br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>An abstract base class for implementing layout managers. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WLayoutItem.html" title="An abstract base class for items that can participate in a layout.">WLayoutItem</a>, <a class="el" href="classWt_1_1WLayout.html" title="An abstract base class for layout managers.">WLayout</a> </dd></dl>
</div><hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a17f642513739083112ab2a69a05ca0a4"></a><!-- doxytag: member="Wt::WLayoutItemImpl::updateAddItem" ref="a17f642513739083112ab2a69a05ca0a4" args="(WLayoutItem *item)=0" -->
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<td class="memname">virtual void Wt::WLayoutItemImpl::updateAddItem </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classWt_1_1WLayoutItem.html">WLayoutItem</a> * </td>
<td class="paramname"><em>item</em></td><td>)</td>
<td><code> [pure virtual]</code></td>
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<p>Adds a layout <em>item</em>. </p>
<p>The <code>item</code> already has an implementation set. </p>
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