<?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>Obsolete Members for QStyleOptionGraphicsItem | Qt Widgets 5.12.2</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 >QStyleOptionGraphicsItem</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtwidgets-index.html">Qt 5.12.2 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">Obsolete Members for QStyleOptionGraphicsItem</h1> <p><b>The following members of class <a href="qstyleoptiongraphicsitem.html">QStyleOptionGraphicsItem</a> are obsolete.</b> They are provided to keep old source code working. We strongly advise against using them in new code.</p> <h2>Public Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>void </td><td class="memItemRight bottomAlign"><b><a href="qstyleoption-obsolete.html#init">init</a></b>(const QWidget *<i>widget</i>)</td></tr> </table></div> <h2>Public Variables</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>qreal </td><td class="memItemRight bottomAlign"><b><a href="qstyleoptiongraphicsitem-obsolete.html#levelOfDetail-var">levelOfDetail</a></b></td></tr> <tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>QMatrix </td><td class="memItemRight bottomAlign"><b><a href="qstyleoptiongraphicsitem-obsolete.html#matrix-var">matrix</a></b></td></tr> </table></div> <h2>Member Variable Documentation</h2> <!-- $$$levelOfDetail --> <h3 class="fn" id="levelOfDetail-var"><a name="levelOfDetail-var"></a><span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> QStyleOptionGraphicsItem::<span class="name">levelOfDetail</span></h3> <p>This documentation is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.</p> <p>Use <a href="qstyleoptiongraphicsitem.html#levelOfDetailFromTransform">QStyleOptionGraphicsItem::levelOfDetailFromTransform</a>() together with <a href="../qtgui/qpainter.html#worldTransform">QPainter::worldTransform</a>() instead.</p> <!-- @@@levelOfDetail --> <!-- $$$matrix --> <h3 class="fn" id="matrix-var"><a name="matrix-var"></a><span class="type"><a href="../qtgui/qmatrix.html">QMatrix</a></span> QStyleOptionGraphicsItem::<span class="name">matrix</span></h3> <p>This documentation is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.</p> <p>This variable holds the complete transformation matrix for the item</p> <p>The <a href="../qtgui/qmatrix.html">QMatrix</a> provided through this member does include information about any perspective transformations applied to the view or item. To get the correct transformation matrix, use <a href="../qtgui/qpainter.html#transform">QPainter::transform</a>() on the painter passed into the <a href="qgraphicsitem.html#paint">QGraphicsItem::paint</a>() implementation.</p> <p>This matrix is the combination of the item's scene matrix and the matrix of the painter used for drawing the item. It is provided for convenience, allowing anvanced level-of-detail metrics that can be used to speed up item drawing.</p> <p>To find the dimensions of an item in screen coordinates (i.e., pixels), you can use the mapping functions of <a href="../qtgui/qmatrix.html">QMatrix</a>, such as <a href="../qtgui/qmatrix.html#map-4">QMatrix::map</a>().</p> <p>This member is only initialized for items that have the <a href="qgraphicsitem.html#GraphicsItemFlag-enum">QGraphicsItem::ItemUsesExtendedStyleOption</a> flag set.</p> <p><b>See also </b><a href="qstyleoptiongraphicsitem.html#levelOfDetailFromTransform">QStyleOptionGraphicsItem::levelOfDetailFromTransform</a>().</p> <!-- @@@matrix --> </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>