<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qstyleoption.cpp --> <title>QStyleOptionComboBox Class | Qt Widgets 5.12.6</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-module.html">C++ Classes</a></td><td >QStyleOptionComboBox</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtwidgets-index.html">Qt 5.12.6 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-types">Public Types</a></li> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#public-variables">Public Variables</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">QStyleOptionComboBox Class</h1> <!-- $$$QStyleOptionComboBox-brief --> <p>The <a href="qstyleoptioncombobox.html">QStyleOptionComboBox</a> class is used to describe the parameter for drawing a combobox. <a href="#details">More...</a></p> <!-- @@@QStyleOptionComboBox --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QStyleOptionComboBox></span> </td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += widgets</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qstyleoptioncomplex.html">QStyleOptionComplex</a></td></tr></table></div><ul> <li><a href="qstyleoptioncombobox-members.html">List of all members, including inherited members</a></li> <li><a href="qstyleoptioncombobox-obsolete.html">Obsolete members</a></li> </ul> <a name="public-types"></a> <h2 id="public-types">Public Types</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qstyleoptioncombobox.html#StyleOptionType-enum">StyleOptionType</a></b> { Type }</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qstyleoptioncombobox.html#StyleOptionVersion-enum">StyleOptionVersion</a></b> { Version }</td></tr> </table></div> <a name="public-functions"></a> <h2 id="public-functions">Public Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qstyleoptioncombobox.html#QStyleOptionComboBox">QStyleOptionComboBox</a></b>()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qstyleoptioncombobox.html#QStyleOptionComboBox-1">QStyleOptionComboBox</a></b>(const QStyleOptionComboBox &<i>other</i>)</td></tr> </table></div> <ul> <li class="fn">2 public functions inherited from <a href="qstyleoption.html#public-functions">QStyleOption</a></li> </ul> <a name="public-variables"></a> <h2 id="public-variables">Public Variables</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> QIcon </td><td class="memItemRight bottomAlign"><b><a href="qstyleoptioncombobox.html#currentIcon-var">currentIcon</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QString </td><td class="memItemRight bottomAlign"><b><a href="qstyleoptioncombobox.html#currentText-var">currentText</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qstyleoptioncombobox.html#editable-var">editable</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qstyleoptioncombobox.html#frame-var">frame</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QSize </td><td class="memItemRight bottomAlign"><b><a href="qstyleoptioncombobox.html#iconSize-var">iconSize</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QRect </td><td class="memItemRight bottomAlign"><b><a href="qstyleoptioncombobox.html#popupRect-var">popupRect</a></b></td></tr> </table></div> <a name="details"></a> <!-- $$$QStyleOptionComboBox-description --> <div class="descr"> <h2 id="details">Detailed Description</h2> <p>The <a href="qstyleoptioncombobox.html">QStyleOptionComboBox</a> class is used to describe the parameter for drawing a combobox.</p> <p><a href="qstyleoptionbutton.html">QStyleOptionButton</a> contains all the information that <a href="qstyle.html">QStyle</a> functions need to draw <a href="qcombobox.html">QComboBox</a>.</p> <p>For performance reasons, the access to the member variables is direct (i.e., using the <code>.</code> or <code>-></code> operator). This low-level feel makes the structures straightforward to use and emphasizes that these are simply parameters used by the style functions.</p> <p>For an example demonstrating how style options can be used, see the <a href="qtwidgets-widgets-styles-example.html">Styles</a> example.</p> </div> <p><b>See also </b><a href="qstyleoption.html">QStyleOption</a>, <a href="qstyleoptioncomplex.html">QStyleOptionComplex</a>, and <a href="qcombobox.html">QComboBox</a>.</p> <!-- @@@QStyleOptionComboBox --> <div class="types"> <h2>Member Type Documentation</h2> <!-- $$$StyleOptionType$$$Type --> <h3 class="fn" id="StyleOptionType-enum"><a name="StyleOptionType-enum"></a>enum QStyleOptionComboBox::<span class="name">StyleOptionType</span></h3> <p>This enum is used to hold information about the type of the style option, and is defined for each <a href="qstyleoption.html">QStyleOption</a> subclass.</p> <div class="table"><table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr> <tr><td class="topAlign"><code>QStyleOptionComboBox::Type</code></td><td class="topAlign tblval"><code>SO_ComboBox</code></td><td class="topAlign">The type of style option provided (<a href="qstyleoption.html#OptionType-enum">SO_ComboBox</a> for this class).</td></tr> </table></div> <p>The type is used internally by <a href="qstyleoption.html">QStyleOption</a>, its subclasses, and <a href="qstyleoption.html#qstyleoption_cast">qstyleoption_cast</a>() to determine the type of style option. In general you do not need to worry about this unless you want to create your own <a href="qstyleoption.html">QStyleOption</a> subclass and your own styles.</p> <p><b>See also </b><a href="qstyleoptioncombobox.html#StyleOptionVersion-enum">StyleOptionVersion</a>.</p> <!-- @@@StyleOptionType --> <!-- $$$StyleOptionVersion$$$Version --> <h3 class="fn" id="StyleOptionVersion-enum"><a name="StyleOptionVersion-enum"></a>enum QStyleOptionComboBox::<span class="name">StyleOptionVersion</span></h3> <p>This enum is used to hold information about the version of the style option, and is defined for each <a href="qstyleoption.html">QStyleOption</a> subclass.</p> <div class="table"><table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr> <tr><td class="topAlign"><code>QStyleOptionComboBox::Version</code></td><td class="topAlign tblval"><code>1</code></td><td class="topAlign">1</td></tr> </table></div> <p>The version is used by <a href="qstyleoption.html">QStyleOption</a> subclasses to implement extensions without breaking compatibility. If you use <a href="qstyleoption.html#qstyleoption_cast">qstyleoption_cast</a>(), you normally do not need to check it.</p> <p><b>See also </b><a href="qstyleoptioncombobox.html#StyleOptionType-enum">StyleOptionType</a>.</p> <!-- @@@StyleOptionVersion --> </div> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$QStyleOptionComboBox[overload1]$$$QStyleOptionComboBox --> <h3 class="fn" id="QStyleOptionComboBox"><a name="QStyleOptionComboBox"></a>QStyleOptionComboBox::<span class="name">QStyleOptionComboBox</span>()</h3> <p>Creates a <a href="qstyleoptioncombobox.html">QStyleOptionComboBox</a>, initializing the members variables to their default values.</p> <!-- @@@QStyleOptionComboBox --> <!-- $$$QStyleOptionComboBox$$$QStyleOptionComboBoxconstQStyleOptionComboBox& --> <h3 class="fn" id="QStyleOptionComboBox-1"><a name="QStyleOptionComboBox-1"></a>QStyleOptionComboBox::<span class="name">QStyleOptionComboBox</span>(const <span class="type"><a href="qstyleoptioncombobox.html#QStyleOptionComboBox">QStyleOptionComboBox</a></span> &<i>other</i>)</h3> <p>Constructs a copy of the <i>other</i> style option.</p> <!-- @@@QStyleOptionComboBox --> </div> <div class="vars"> <h2>Member Variable Documentation</h2> <!-- $$$currentIcon --> <h3 class="fn" id="currentIcon-var"><a name="currentIcon-var"></a><span class="type"><a href="../qtgui/qicon.html">QIcon</a></span> QStyleOptionComboBox::<span class="name">currentIcon</span></h3> <p>This variable holds the icon for the current item of the combo box</p> <p>The default value is an empty icon, i.e. an icon with neither a pixmap nor a filename.</p> <!-- @@@currentIcon --> <!-- $$$currentText --> <h3 class="fn" id="currentText-var"><a name="currentText-var"></a><span class="type"><a href="../qtcore/qstring.html">QString</a></span> QStyleOptionComboBox::<span class="name">currentText</span></h3> <p>This variable holds the text for the current item of the combo box</p> <p>The default value is an empty string.</p> <!-- @@@currentText --> <!-- $$$editable --> <h3 class="fn" id="editable-var"><a name="editable-var"></a><span class="type">bool</span> QStyleOptionComboBox::<span class="name">editable</span></h3> <p>This variable holds whether or not the combobox is editable or not</p> <p>the default value is false</p> <p><b>See also </b><a href="qcombobox.html#editable-prop">QComboBox::isEditable</a>().</p> <!-- @@@editable --> <!-- $$$frame --> <h3 class="fn" id="frame-var"><a name="frame-var"></a><span class="type">bool</span> QStyleOptionComboBox::<span class="name">frame</span></h3> <p>This variable holds whether the combo box has a frame</p> <p>The default value is true.</p> <!-- @@@frame --> <!-- $$$iconSize --> <h3 class="fn" id="iconSize-var"><a name="iconSize-var"></a><span class="type"><a href="../qtcore/qsize.html">QSize</a></span> QStyleOptionComboBox::<span class="name">iconSize</span></h3> <p>This variable holds the icon size for the current item of the combo box</p> <p>The default value is <a href="../qtcore/qsize.html">QSize</a>(-1, -1), i.e. an invalid size.</p> <!-- @@@iconSize --> <!-- $$$popupRect --> <h3 class="fn" id="popupRect-var"><a name="popupRect-var"></a><span class="type"><a href="../qtcore/qrect.html">QRect</a></span> QStyleOptionComboBox::<span class="name">popupRect</span></h3> <p>This variable holds the popup rectangle for the combobox</p> <p>The default value is a null rectangle, i.e. a rectangle with both the width and the height set to 0.</p> <p>This variable is currently unused. You can safely ignore it.</p> <p><b>See also </b><a href="qstyle.html#SubControl-enum">QStyle::SC_ComboBoxListBoxPopup</a>.</p> <!-- @@@popupRect --> </div> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>