<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>Wt: Wt::WSelectionBox Class Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css" /> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="search/search.js"></script> <script type="text/javascript"> $(document).ready(function() { searchBox.OnSelectItem(0); }); </script> </head> <body> <div id="top"><!-- do not remove this div! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">Wt  <span id="projectnumber">3.2.3</span> </div> </td> </tr> </tbody> </table> </div> <!-- Generated by Doxygen 1.7.5.1 --> <script type="text/javascript"> var searchBox = new SearchBox("searchBox", "search",false,'Search'); </script> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li class="current"><a href="annotated.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li> <div id="MSearchBox" class="MSearchBoxInactive"> <span class="left"> <img id="MSearchSelect" src="search/mag_sel.png" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" alt=""/> <input type="text" id="MSearchField" value="Search" accesskey="S" onfocus="searchBox.OnSearchFieldFocus(true)" onblur="searchBox.OnSearchFieldFocus(false)" 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system</a></div></div> </div> </div> <div class="contents"> <!-- doxytag: class="Wt::WSelectionBox" --><!-- doxytag: inherits="Wt::WComboBox" --> <p>A selection box allows selection from a list of options. <a href="classWt_1_1WSelectionBox.html#details">More...</a></p> <p><code>#include <Wt/WSelectionBox></code></p> <div class="dynheader"> Inheritance diagram for Wt::WSelectionBox:</div> <div class="dyncontent"> <div class="center"><img src="classWt_1_1WSelectionBox__inherit__graph.png" border="0" usemap="#Wt_1_1WSelectionBox_inherit__map" alt="Inheritance graph"/></div> <map name="Wt_1_1WSelectionBox_inherit__map" id="Wt_1_1WSelectionBox_inherit__map"> <area shape="rect" href="classWt_1_1WComboBox.html" title="A widget that provides a drop-down combo-box control." alt="" coords="16,379,139,405"/><area shape="rect" href="classWt_1_1WFormWidget.html" title="An abstract widget that corresponds to an HTML form element." alt="" coords="12,304,143,331"/><area shape="rect" href="classWt_1_1WInteractWidget.html" title="An abstract widget that can receive user-interface interaction." alt="" coords="5,229,149,256"/><area shape="rect" href="classWt_1_1WWebWidget.html" title="A base class for widgets with an HTML counterpart." alt="" coords="13,155,141,181"/><area shape="rect" href="classWt_1_1WWidget.html" title="The abstract base class for a user-interface component." alt="" coords="28,80,127,107"/><area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="29,5,125,32"/></map> <center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div> <p><a href="classWt_1_1WSelectionBox-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="a079089ad7d220d5fd2b17d342fd65375"></a><!-- doxytag: member="Wt::WSelectionBox::WSelectionBox" ref="a079089ad7d220d5fd2b17d342fd65375" args="(WContainerWidget *parent=0)" -->  </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSelectionBox.html#a079089ad7d220d5fd2b17d342fd65375">WSelectionBox</a> (<a class="el" href="classWt_1_1WContainerWidget.html">WContainerWidget</a> *parent=0)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0aa28564501cd4c2653fdc45c4fd1a20"></a><!-- doxytag: member="Wt::WSelectionBox::verticalSize" ref="a0aa28564501cd4c2653fdc45c4fd1a20" args="() const " --> int </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSelectionBox.html#a0aa28564501cd4c2653fdc45c4fd1a20">verticalSize</a> () const </td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the number of items that are visible. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSelectionBox.html#a90bcf3611a6f54e0358b7f208b0cb478">setVerticalSize</a> (int items)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the number of items that are visible. <a href="#a90bcf3611a6f54e0358b7f208b0cb478"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSelectionBox.html#aa3119417024e25b7b24e66cab17edb31">setSelectionMode</a> (<a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccc">SelectionMode</a> mode)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the selection mode. <a href="#aa3119417024e25b7b24e66cab17edb31"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccc">SelectionMode</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSelectionBox.html#a22a94e26ce301d967efa0893093f73c9">selectionMode</a> () const </td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the selection mode. <a href="#a22a94e26ce301d967efa0893093f73c9"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">const std::set< int > & </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSelectionBox.html#ae27b849b2eeef1bf35ddbaca3659e539">selectedIndexes</a> () const </td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the current selection (in <a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccca7784d55577e92022399052c3d4d69954" title="Multiple selection.">Wt::ExtendedSelection</a> mode). <a href="#ae27b849b2eeef1bf35ddbaca3659e539"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSelectionBox.html#a4fcb25c6d7c00f5659959180df9a337c">setSelectedIndexes</a> (const std::set< int > &selection)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the selection (in <a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccca7784d55577e92022399052c3d4d69954" title="Multiple selection.">Wt::ExtendedSelection</a> mode). <a href="#a4fcb25c6d7c00f5659959180df9a337c"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WSelectionBox.html#a2925ed26e7e56d8ce7bca40dc338f5e0">clearSelection</a> ()</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Clears the current selection. <a href="#a2925ed26e7e56d8ce7bca40dc338f5e0"></a><br/></td></tr> </table> <hr/><a name="details" id="details"></a><h2>Detailed Description</h2> <div class="textblock"><p>A selection box allows selection from a list of options. </p> <p>By default, a selection box may be used to let the user select one item from a list. This may be changed to multiple selection mode using <a class="el" href="classWt_1_1WSelectionBox.html#aa3119417024e25b7b24e66cab17edb31" title="Sets the selection mode.">setSelectionMode()</a>.</p> <p>The current selection may be set and read using <a class="el" href="classWt_1_1WComboBox.html#a903e2d98c6860fe09198bdb43f0566bd" title="Changes the current selection.">setCurrentIndex()</a> and <a class="el" href="classWt_1_1WComboBox.html#a94b6a87121adab0abbf23562d35a716e" title="Returns the currently selected item.">currentIndex()</a>, for <a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccca4fd3c5ba6ce5289a1e732d85f002882a">SingleSelection</a> mode, or <a class="el" href="classWt_1_1WSelectionBox.html#a4fcb25c6d7c00f5659959180df9a337c" title="Sets the selection (in Wt::ExtendedSelection mode).">setSelectedIndexes()</a> and <a class="el" href="classWt_1_1WSelectionBox.html#ae27b849b2eeef1bf35ddbaca3659e539" title="Returns the current selection (in Wt::ExtendedSelection mode).">selectedIndexes()</a> for <a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccca7784d55577e92022399052c3d4d69954" title="Multiple selection.">Wt::ExtendedSelection</a> mode. The <a class="el" href="classWt_1_1WComboBox.html#ac39b46ccd8134a5397b4cbd87dc9f01f" title="Signal emitted when the selection changed.">activated()</a> and <a class="el" href="classWt_1_1WComboBox.html#a06401499734540c65db26fceb60bfdbf" title="Signal emitted when the selection changed.">sactivated()</a> signals are not emited in the <a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccca7784d55577e92022399052c3d4d69954" title="Multiple selection.">Wt::ExtendedSelection</a> mode, use the <a class="el" href="classWt_1_1WFormWidget.html#a5216ba1594b5dc525cc47cad593c7ba8" title="Signal emitted when the value was changed.">changed()</a> signal <a class="el" href="classWt_1_1WFormWidget.html#a5216ba1594b5dc525cc47cad593c7ba8" title="Signal emitted when the value was changed.">changed()</a>.</p> <p>WSelectionBox is an MVC view class, using a simple string list model by default. The model may be populated using <a class="el" href="classWt_1_1WComboBox.html#a9b2308a7d962ceb17c1ee32627b106d4" title="Adds an option item.">WComboBox::addItem()</a> or <a class="el" href="classWt_1_1WComboBox.html#a2092c15c7c0c2f77342d0abdc393ca6b" title="Inserts an item at the specified position.">WComboBox::insertItem()</a> and the contents can be cleared through <a class="el" href="classWt_1_1WComboBox.html#a0ed207e9616b51089d97030cc767409d" title="Clears all items.">clear()</a>. These methods manipulate the underlying <a class="el" href="classWt_1_1WComboBox.html#a20b54b2271b0219c2375775538d454a3" title="Returns the data model.">model()</a>.</p> <p>To use the selectionbox with a custom model instead of the default <a class="el" href="classWt_1_1WStringListModel.html" title="An model that manages a list of strings.">WStringListModel</a>, use <a class="el" href="classWt_1_1WComboBox.html#a3d10438b053fe43dcd05e66b7ca78826" title="Sets the model to be used for the items.">setModel()</a>.</p> <p>Usage example: </p> <div class="fragment"><pre class="fragment"> <a class="code" href="classWt_1_1WSelectionBox.html" title="A selection box allows selection from a list of options.">Wt::WSelectionBox</a> *selectionBox = <span class="keyword">new</span> <a class="code" href="classWt_1_1WSelectionBox.html#a079089ad7d220d5fd2b17d342fd65375" title="Constructor.">Wt::WSelectionBox</a>(<span class="keyword">this</span>); selectionBox-><a class="code" href="classWt_1_1WComboBox.html#a9b2308a7d962ceb17c1ee32627b106d4" title="Adds an option item.">addItem</a>(<span class="stringliteral">"Clint Eastwood"</span>); selectionBox-><a class="code" href="classWt_1_1WComboBox.html#a9b2308a7d962ceb17c1ee32627b106d4" title="Adds an option item.">addItem</a>(<span class="stringliteral">"Mick Jagger"</span>); selectionBox-><a class="code" href="classWt_1_1WComboBox.html#a9b2308a7d962ceb17c1ee32627b106d4" title="Adds an option item.">addItem</a>(<span class="stringliteral">"Johnny Depp"</span>); selectionBox-><a class="code" href="classWt_1_1WComboBox.html#a9b2308a7d962ceb17c1ee32627b106d4" title="Adds an option item.">addItem</a>(<span class="stringliteral">"Kate Winslet"</span>); selectionBox-><a class="code" href="classWt_1_1WComboBox.html#a903e2d98c6860fe09198bdb43f0566bd" title="Changes the current selection.">setCurrentIndex</a>(2); <span class="comment">// Johnny Depp</span> selectionBox-><a class="code" href="classWt_1_1WComboBox.html#ac39b46ccd8134a5397b4cbd87dc9f01f" title="Signal emitted when the selection changed.">activated</a>().connect(<span class="keyword">this</span>, &MyWidget::comboChanged); </pre></div><p>WSelectionBox is an <a class="el" href="classWt_1_1WWidget.html#ac78e3af143883334c82031790c87416e">inline </a> widget.</p> <h3>CSS</h3> <p>The widget corresponds to the HTML <code><select></code> tag and does not provide styling. It can be styled using inline or external CSS as appropriate. </p> </div><hr/><h2>Member Function Documentation</h2> <a class="anchor" id="a2925ed26e7e56d8ce7bca40dc338f5e0"></a><!-- doxytag: member="Wt::WSelectionBox::clearSelection" ref="a2925ed26e7e56d8ce7bca40dc338f5e0" args="()" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void Wt::WSelectionBox::clearSelection </td> <td>(</td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Clears the current selection. </p> <p>Clears the current selection.</p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WComboBox.html#a903e2d98c6860fe09198bdb43f0566bd" title="Changes the current selection.">setCurrentIndex()</a>, <a class="el" href="classWt_1_1WSelectionBox.html#a4fcb25c6d7c00f5659959180df9a337c" title="Sets the selection (in Wt::ExtendedSelection mode).">setSelectedIndexes()</a> </dd></dl> </div> </div> <a class="anchor" id="ae27b849b2eeef1bf35ddbaca3659e539"></a><!-- doxytag: member="Wt::WSelectionBox::selectedIndexes" ref="ae27b849b2eeef1bf35ddbaca3659e539" args="() const " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">const std::set<int>& Wt::WSelectionBox::selectedIndexes </td> <td>(</td> <td class="paramname"></td><td>)</td> <td> const</td> </tr> </table> </div> <div class="memdoc"> <p>Returns the current selection (in <a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccca7784d55577e92022399052c3d4d69954" title="Multiple selection.">Wt::ExtendedSelection</a> mode). </p> <p>Get the list of currently selected items. This method is only defined when <a class="el" href="classWt_1_1WSelectionBox.html#a22a94e26ce301d967efa0893093f73c9" title="Returns the selection mode.">selectionMode()</a> is <a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccca7784d55577e92022399052c3d4d69954" title="Multiple selection.">Wt::ExtendedSelection</a>. Otherwise, you should use <a class="el" href="classWt_1_1WComboBox.html#a94b6a87121adab0abbf23562d35a716e" title="Returns the currently selected item.">currentIndex()</a> to get item currently selected.</p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WComboBox.html#a94b6a87121adab0abbf23562d35a716e" title="Returns the currently selected item.">currentIndex()</a> </dd></dl> </div> </div> <a class="anchor" id="a22a94e26ce301d967efa0893093f73c9"></a><!-- doxytag: member="Wt::WSelectionBox::selectionMode" ref="a22a94e26ce301d967efa0893093f73c9" args="() const " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccc">SelectionMode</a> Wt::WSelectionBox::selectionMode </td> <td>(</td> <td class="paramname"></td><td>)</td> <td> const</td> </tr> </table> </div> <div class="memdoc"> <p>Returns the selection mode. </p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WSelectionBox.html#aa3119417024e25b7b24e66cab17edb31" title="Sets the selection mode.">setSelectionMode(SelectionMode)</a> </dd></dl> </div> </div> <a class="anchor" id="a4fcb25c6d7c00f5659959180df9a337c"></a><!-- doxytag: member="Wt::WSelectionBox::setSelectedIndexes" ref="a4fcb25c6d7c00f5659959180df9a337c" args="(const std::set< int > &selection)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void Wt::WSelectionBox::setSelectedIndexes </td> <td>(</td> <td class="paramtype">const std::set< int > & </td> <td class="paramname"><em>selection</em></td><td>)</td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Sets the selection (in <a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccca7784d55577e92022399052c3d4d69954" title="Multiple selection.">Wt::ExtendedSelection</a> mode). </p> <p>For an <a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccca7784d55577e92022399052c3d4d69954" title="Multiple selection.">Wt::ExtendedSelection</a> mode, set the list of currently selected items.</p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WSelectionBox.html#ae27b849b2eeef1bf35ddbaca3659e539" title="Returns the current selection (in Wt::ExtendedSelection mode).">selectedIndexes()</a> </dd></dl> </div> </div> <a class="anchor" id="aa3119417024e25b7b24e66cab17edb31"></a><!-- doxytag: member="Wt::WSelectionBox::setSelectionMode" ref="aa3119417024e25b7b24e66cab17edb31" args="(SelectionMode mode)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void Wt::WSelectionBox::setSelectionMode </td> <td>(</td> <td class="paramtype"><a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccc">SelectionMode</a> </td> <td class="paramname"><em>mode</em></td><td>)</td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Sets the selection mode. </p> <p>The default selection mode is SingleSelection. You can change to <a class="el" href="namespaceWt.html#a74b3f7eb1689a3cbf0ea514ffd20bccca7784d55577e92022399052c3d4d69954" title="Multiple selection.">Wt::ExtendedSelection</a> to allow selection of multiple items. </p> </div> </div> <a class="anchor" id="a90bcf3611a6f54e0358b7f208b0cb478"></a><!-- doxytag: member="Wt::WSelectionBox::setVerticalSize" ref="a90bcf3611a6f54e0358b7f208b0cb478" args="(int items)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void Wt::WSelectionBox::setVerticalSize </td> <td>(</td> <td class="paramtype">int </td> <td class="paramname"><em>items</em></td><td>)</td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Sets the number of items that are visible. </p> <p>If more items are available, a scroll-bar is provided. </p> </div> </div> </div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> <a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Enumerator</a></div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> <hr size="1"><address style="text-align: right; margin: 3px"><small> Generated on Thu Nov 1 2012 for <a href="http://www.webtoolkit.eu/wt">the C++ Web Toolkit (Wt)</a> by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" border="0" style="vertical-align: middle; display: inline-block; height: 2em"></a> 1.7.5.1</small></address> </body> </html>