<!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::WScrollArea 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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<!-- doxytag: class="Wt::WScrollArea" --><!-- doxytag: inherits="Wt::WWebWidget" --> <p>A widget that adds scrolling capabilities to its content. <a href="classWt_1_1WScrollArea.html#details">More...</a></p> <p><code>#include <Wt/WScrollArea></code></p> <div class="dynheader"> Inheritance diagram for Wt::WScrollArea:</div> <div class="dyncontent"> <div class="center"><img src="classWt_1_1WScrollArea__inherit__graph.png" border="0" usemap="#Wt_1_1WScrollArea_inherit__map" alt="Inheritance graph"/></div> <map name="Wt_1_1WScrollArea_inherit__map" id="Wt_1_1WScrollArea_inherit__map"> <area shape="rect" href="classWt_1_1WWebWidget.html" title="A base class for widgets with an HTML counterpart." alt="" coords="5,155,133,181"/><area shape="rect" href="classWt_1_1WWidget.html" title="The abstract base class for a user-interface component." alt="" coords="20,80,119,107"/><area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="21,5,117,32"/></map> <center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div> <p><a href="classWt_1_1WScrollArea-members.html">List of all members.</a></p> <table class="memberdecls"> <tr><td colspan="2"><h2><a name="pub-types"></a> Public Types</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7">ScrollBarPolicy</a> { <a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7ac387af3baf5e109899bdddbf72586aaf">ScrollBarAsNeeded</a>, <a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7a8c3f17ce7b5a537f91f6926e98dc3aa3">ScrollBarAlwaysOff</a>, <a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7a18cdc324ca6e869655208c8d02274a5d">ScrollBarAlwaysOn</a> }</td></tr> <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="a2114c3abfc3b2aa78677f1d65dde9402"></a><!-- doxytag: member="Wt::WScrollArea::WScrollArea" ref="a2114c3abfc3b2aa78677f1d65dde9402" args="(WContainerWidget *parent=0)" -->  </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WScrollArea.html#a2114c3abfc3b2aa78677f1d65dde9402">WScrollArea</a> (<a class="el" href="classWt_1_1WContainerWidget.html">WContainerWidget</a> *parent=0)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Creates a scroll area. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WScrollArea.html#ac313ec45cd9aa9382fc5b540ad9008ae">setWidget</a> (<a class="el" href="classWt_1_1WWidget.html">WWidget</a> *widget)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the widget that is the content of the scroll area. <a href="#ac313ec45cd9aa9382fc5b540ad9008ae"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="abef337f8179db15f4448bd60980ff371"></a><!-- doxytag: member="Wt::WScrollArea::takeWidget" ref="abef337f8179db15f4448bd60980ff371" args="()" --> <a class="el" href="classWt_1_1WWidget.html">WWidget</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WScrollArea.html#abef337f8179db15f4448bd60980ff371">takeWidget</a> ()</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Removes the widget content. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a76426cecd85e75ed4add6b26853a0bb3"></a><!-- doxytag: member="Wt::WScrollArea::widget" ref="a76426cecd85e75ed4add6b26853a0bb3" args="() const " --> <a class="el" href="classWt_1_1WWidget.html">WWidget</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WScrollArea.html#a76426cecd85e75ed4add6b26853a0bb3">widget</a> () const </td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the widget content. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a5d25cb403fd03c5a4bc0116ab6278135"></a><!-- doxytag: member="Wt::WScrollArea::horizontalScrollBar" ref="a5d25cb403fd03c5a4bc0116ab6278135" args="() const " --> <a class="el" href="classWt_1_1WScrollBar.html">WScrollBar</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WScrollArea.html#a5d25cb403fd03c5a4bc0116ab6278135">horizontalScrollBar</a> () const </td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the horizontal scrollbar. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6f3aca1de426f4a256997e3a780bc251"></a><!-- doxytag: member="Wt::WScrollArea::verticalScrollBar" ref="a6f3aca1de426f4a256997e3a780bc251" args="() const " --> <a class="el" href="classWt_1_1WScrollBar.html">WScrollBar</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WScrollArea.html#a6f3aca1de426f4a256997e3a780bc251">verticalScrollBar</a> () const </td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the vertical scrollbar. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WScrollArea.html#a7870ea2ccdbd40d62cd3633d58ba5b0e">setScrollBarPolicy</a> (<a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7">ScrollBarPolicy</a> scrollBarPolicy)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the policy for both scrollbars. <a href="#a7870ea2ccdbd40d62cd3633d58ba5b0e"></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_1WScrollArea.html#a61394643cb1195d2e40d0189fe8f3dc4">setHorizontalScrollBarPolicy</a> (<a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7">ScrollBarPolicy</a> scrollBarPolicy)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the horizontal scroll bar policy. <a href="#a61394643cb1195d2e40d0189fe8f3dc4"></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_1WScrollArea.html#af94d4c195ed2f0fa8114277c42cd59e2">setVerticalScrollBarPolicy</a> (<a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7">ScrollBarPolicy</a> scrollBarPolicy)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the vertical scroll bar policy. <a href="#af94d4c195ed2f0fa8114277c42cd59e2"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7">ScrollBarPolicy</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WScrollArea.html#a1461954536f36903614356b28030a00d">horizontalScrollBarPolicy</a> ()</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the horizontal scroll bar policy. <a href="#a1461954536f36903614356b28030a00d"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7">ScrollBarPolicy</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WScrollArea.html#ac03999691cd2b7fb84d8138428630dac">verticalScrollBarPolicy</a> ()</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the vertical scroll bar policy. <a href="#ac03999691cd2b7fb84d8138428630dac"></a><br/></td></tr> </table> <hr/><a name="details" id="details"></a><h2>Detailed Description</h2> <div class="textblock"><p>A widget that adds scrolling capabilities to its content. </p> <p>Use a <a class="el" href="classWt_1_1WScrollArea.html" title="A widget that adds scrolling capabilities to its content.">WScrollArea</a> to add scrolling capabilities to another widget. When the content is bigger than the <a class="el" href="classWt_1_1WScrollArea.html" title="A widget that adds scrolling capabilities to its content.">WScrollArea</a>, scrollbars are added so that the user can still view the entire content.</p> <p>Use <a class="el" href="classWt_1_1WScrollArea.html#a7870ea2ccdbd40d62cd3633d58ba5b0e" title="Sets the policy for both scrollbars.">setScrollBarPolicy()</a> to configure if and when the scrollbars may appear.</p> <p>In many cases, it might be easier to use the CSS overflow property on a <a class="el" href="classWt_1_1WContainerWidget.html" title="A widget that holds and manages child widgets.">WContainerWidget</a> (see <a class="el" href="classWt_1_1WContainerWidget.html#ae269f870992c5843d3097a63795b10d6" title="Sets how overflow of contained children must be handled.">WContainerWidget::setOverflow()</a>). However, this class will behave better when used inside a layout manager: in that case it will make sure horizontal scrolling works properly, since otherwise the layout manager would overflow rather than scrollbars appear.</p> <h3>CSS</h3> <p>This widget is rendered using a <code><div></code> with a CSS overflow attribute. When in a layout manager it is positioned absolutely. It can be styled using inline or external CSS as appropriate. </p> </div><hr/><h2>Member Enumeration Documentation</h2> <a class="anchor" id="a266104fe2b2f25b8f908de58e21ebbf7"></a><!-- doxytag: member="Wt::WScrollArea::ScrollBarPolicy" ref="a266104fe2b2f25b8f908de58e21ebbf7" args="" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">enum <a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7">Wt::WScrollArea::ScrollBarPolicy</a></td> </tr> </table> </div> <div class="memdoc"> <p>brief Policy for showing a scrollbar. </p> <dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"><em><a class="anchor" id="a266104fe2b2f25b8f908de58e21ebbf7ac387af3baf5e109899bdddbf72586aaf"></a><!-- doxytag: member="ScrollBarAsNeeded" ref="a266104fe2b2f25b8f908de58e21ebbf7ac387af3baf5e109899bdddbf72586aaf" args="" -->ScrollBarAsNeeded</em> </td><td> <p>Automatic. </p> </td></tr> <tr><td valign="top"><em><a class="anchor" id="a266104fe2b2f25b8f908de58e21ebbf7a8c3f17ce7b5a537f91f6926e98dc3aa3"></a><!-- doxytag: member="ScrollBarAlwaysOff" ref="a266104fe2b2f25b8f908de58e21ebbf7a8c3f17ce7b5a537f91f6926e98dc3aa3" args="" -->ScrollBarAlwaysOff</em> </td><td> <p>Never show a scrollbar. </p> </td></tr> <tr><td valign="top"><em><a class="anchor" id="a266104fe2b2f25b8f908de58e21ebbf7a18cdc324ca6e869655208c8d02274a5d"></a><!-- doxytag: member="ScrollBarAlwaysOn" ref="a266104fe2b2f25b8f908de58e21ebbf7a18cdc324ca6e869655208c8d02274a5d" args="" -->ScrollBarAlwaysOn</em> </td><td> <p>Always show a scrollbar. </p> </td></tr> </table> </dd> </dl> </div> </div> <hr/><h2>Member Function Documentation</h2> <a class="anchor" id="a1461954536f36903614356b28030a00d"></a><!-- doxytag: member="Wt::WScrollArea::horizontalScrollBarPolicy" ref="a1461954536f36903614356b28030a00d" args="()" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7">ScrollBarPolicy</a> Wt::WScrollArea::horizontalScrollBarPolicy </td> <td>(</td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Returns the horizontal scroll bar policy. </p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WScrollArea.html#a61394643cb1195d2e40d0189fe8f3dc4" title="Sets the horizontal scroll bar policy.">setHorizontalScrollBarPolicy()</a> </dd></dl> </div> </div> <a class="anchor" id="a61394643cb1195d2e40d0189fe8f3dc4"></a><!-- doxytag: member="Wt::WScrollArea::setHorizontalScrollBarPolicy" ref="a61394643cb1195d2e40d0189fe8f3dc4" args="(ScrollBarPolicy scrollBarPolicy)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void Wt::WScrollArea::setHorizontalScrollBarPolicy </td> <td>(</td> <td class="paramtype"><a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7">ScrollBarPolicy</a> </td> <td class="paramname"><em>scrollBarPolicy</em></td><td>)</td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Sets the horizontal scroll bar policy. </p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WScrollArea.html#a7870ea2ccdbd40d62cd3633d58ba5b0e" title="Sets the policy for both scrollbars.">setScrollBarPolicy()</a> </dd></dl> </div> </div> <a class="anchor" id="a7870ea2ccdbd40d62cd3633d58ba5b0e"></a><!-- doxytag: member="Wt::WScrollArea::setScrollBarPolicy" ref="a7870ea2ccdbd40d62cd3633d58ba5b0e" args="(ScrollBarPolicy scrollBarPolicy)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void Wt::WScrollArea::setScrollBarPolicy </td> <td>(</td> <td class="paramtype"><a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7">ScrollBarPolicy</a> </td> <td class="paramname"><em>scrollBarPolicy</em></td><td>)</td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Sets the policy for both scrollbars. </p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WScrollArea.html#a61394643cb1195d2e40d0189fe8f3dc4" title="Sets the horizontal scroll bar policy.">setHorizontalScrollBarPolicy()</a>, <a class="el" href="classWt_1_1WScrollArea.html#af94d4c195ed2f0fa8114277c42cd59e2" title="Sets the vertical scroll bar policy.">setVerticalScrollBarPolicy()</a> </dd></dl> </div> </div> <a class="anchor" id="af94d4c195ed2f0fa8114277c42cd59e2"></a><!-- doxytag: member="Wt::WScrollArea::setVerticalScrollBarPolicy" ref="af94d4c195ed2f0fa8114277c42cd59e2" args="(ScrollBarPolicy scrollBarPolicy)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void Wt::WScrollArea::setVerticalScrollBarPolicy </td> <td>(</td> <td class="paramtype"><a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7">ScrollBarPolicy</a> </td> <td class="paramname"><em>scrollBarPolicy</em></td><td>)</td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Sets the vertical scroll bar policy. </p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WScrollArea.html#a7870ea2ccdbd40d62cd3633d58ba5b0e" title="Sets the policy for both scrollbars.">setScrollBarPolicy()</a> </dd></dl> </div> </div> <a class="anchor" id="ac313ec45cd9aa9382fc5b540ad9008ae"></a><!-- doxytag: member="Wt::WScrollArea::setWidget" ref="ac313ec45cd9aa9382fc5b540ad9008ae" args="(WWidget *widget)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void Wt::WScrollArea::setWidget </td> <td>(</td> <td class="paramtype"><a class="el" href="classWt_1_1WWidget.html">WWidget</a> * </td> <td class="paramname"><em>widget</em></td><td>)</td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Sets the widget that is the content of the scroll area. </p> <p>Setting a new widget will delete the previously set widget. </p> </div> </div> <a class="anchor" id="ac03999691cd2b7fb84d8138428630dac"></a><!-- doxytag: member="Wt::WScrollArea::verticalScrollBarPolicy" ref="ac03999691cd2b7fb84d8138428630dac" args="()" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="classWt_1_1WScrollArea.html#a266104fe2b2f25b8f908de58e21ebbf7">ScrollBarPolicy</a> Wt::WScrollArea::verticalScrollBarPolicy </td> <td>(</td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Returns the vertical scroll bar policy. </p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WScrollArea.html#af94d4c195ed2f0fa8114277c42cd59e2" title="Sets the vertical scroll bar policy.">setVerticalScrollBarPolicy()</a> </dd></dl> </div> </div> </div> <!-- window showing the filter options --> 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