<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qpainter.cpp --> <title>PixmapFragment Class | Qt GUI 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="qtgui-index.html">Qt GUI</a></td><td ><a href="qtgui-module.html">C++ Classes</a></td><td >PixmapFragment</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtgui-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-variables">Public Variables</a></li> <li class="level1"><a href="#static-public-members">Static Public Members</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">PixmapFragment Class</h1> <span class="small-subtitle">(<a href="qpainter-pixmapfragment.html">QPainter::PixmapFragment</a>)<br/></span> <!-- $$$PixmapFragment-brief --> <p>This class is used in conjunction with the <a href="qpainter.html#drawPixmapFragments">QPainter::drawPixmapFragments</a>() function to specify how a pixmap, or sub-rect of a pixmap, is drawn. <a href="#details">More...</a></p> <!-- @@@PixmapFragment --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <PixmapFragment></span> </td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += gui</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt 4.7</td></tr></table></div><ul> <li><a href="qpainter-pixmapfragment-members.html">List of all members, including inherited members</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"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpainter-pixmapfragment.html#height-var">height</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpainter-pixmapfragment.html#opacity-var">opacity</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpainter-pixmapfragment.html#rotation-var">rotation</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpainter-pixmapfragment.html#scaleX-var">scaleX</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpainter-pixmapfragment.html#scaleY-var">scaleY</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpainter-pixmapfragment.html#sourceLeft-var">sourceLeft</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpainter-pixmapfragment.html#sourceTop-var">sourceTop</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpainter-pixmapfragment.html#width-var">width</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpainter-pixmapfragment.html#x-var">x</a></b></td></tr> <tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpainter-pixmapfragment.html#y-var">y</a></b></td></tr> </table></div> <a name="static-public-members"></a> <h2 id="static-public-members">Static Public Members</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> PixmapFragment </td><td class="memItemRight bottomAlign"><b><a href="qpainter-pixmapfragment.html#create">create</a></b>(const QPointF &<i>pos</i>, const QRectF &<i>sourceRect</i>, qreal <i>scaleX</i> = 1, qreal <i>scaleY</i> = 1, qreal <i>rotation</i> = 0, qreal <i>opacity</i> = 1)</td></tr> </table></div> <a name="details"></a> <!-- $$$PixmapFragment-description --> <div class="descr"> <h2 id="details">Detailed Description</h2> <p>This class is used in conjunction with the <a href="qpainter.html#drawPixmapFragments">QPainter::drawPixmapFragments</a>() function to specify how a pixmap, or sub-rect of a pixmap, is drawn.</p> <p>The <i>sourceLeft</i>, <i>sourceTop</i>, <i>width</i> and <i>height</i> variables are used as a source rectangle within the pixmap passed into the <a href="qpainter.html#drawPixmapFragments">QPainter::drawPixmapFragments</a>() function. The variables <i>x</i>, <i>y</i>, <i>width</i> and <i>height</i> are used to calculate the target rectangle that is drawn. <i>x</i> and <i>y</i> denotes the center of the target rectangle. The <i>width</i> and <i>height</i> in the target rectangle is scaled by the <i>scaleX</i> and <i>scaleY</i> values. The resulting target rectangle is then rotated <i>rotation</i> degrees around the <i>x</i>, <i>y</i> center point.</p> </div> <p><b>See also </b><a href="qpainter.html#drawPixmapFragments">QPainter::drawPixmapFragments</a>().</p> <!-- @@@PixmapFragment --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$create[overload1]$$$createconstQPointF&constQRectF&qrealqrealqrealqreal --> <h3 class="fn" id="create"><a name="create"></a><code>[static] </code><span class="type"><a href="qpainter-pixmapfragment.html">PixmapFragment</a></span> PixmapFragment::<span class="name">create</span>(const <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span> &<i>pos</i>, const <span class="type"><a href="../qtcore/qrectf.html">QRectF</a></span> &<i>sourceRect</i>, <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> <i>scaleX</i> = 1, <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> <i>scaleY</i> = 1, <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> <i>rotation</i> = 0, <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> <i>opacity</i> = 1)</h3> <p>This is a convenience function that returns a <a href="qpainter-pixmapfragment.html">QPainter::PixmapFragment</a> that is initialized with the <i>pos</i>, <i>sourceRect</i>, <i>scaleX</i>, <i>scaleY</i>, <i>rotation</i>, <i>opacity</i> parameters.</p> <p>This function was introduced in Qt 4.7.</p> <!-- @@@create --> </div> <div class="vars"> <h2>Member Variable Documentation</h2> <!-- $$$height --> <h3 class="fn" id="height-var"><a name="height-var"></a><span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> PixmapFragment::<span class="name">height</span></h3> <p>This variable holds the height of the source rectangle and is used to calculate the height of the target rectangle.</p> <!-- @@@height --> <!-- $$$opacity --> <h3 class="fn" id="opacity-var"><a name="opacity-var"></a><span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> PixmapFragment::<span class="name">opacity</span></h3> <p>This variable holds the opacity of the target rectangle, where 0.0 is fully transparent and 1.0 is fully opaque.</p> <!-- @@@opacity --> <!-- $$$rotation --> <h3 class="fn" id="rotation-var"><a name="rotation-var"></a><span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> PixmapFragment::<span class="name">rotation</span></h3> <p>This variable holds the rotation of the target rectangle in degrees. The target rectangle is rotated after it has been scaled.</p> <!-- @@@rotation --> <!-- $$$scaleX --> <h3 class="fn" id="scaleX-var"><a name="scaleX-var"></a><span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> PixmapFragment::<span class="name">scaleX</span></h3> <p>This variable holds the horizontal scale of the target rectangle.</p> <!-- @@@scaleX --> <!-- $$$scaleY --> <h3 class="fn" id="scaleY-var"><a name="scaleY-var"></a><span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> PixmapFragment::<span class="name">scaleY</span></h3> <p>This variable holds the vertical scale of the target rectangle.</p> <!-- @@@scaleY --> <!-- $$$sourceLeft --> <h3 class="fn" id="sourceLeft-var"><a name="sourceLeft-var"></a><span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> PixmapFragment::<span class="name">sourceLeft</span></h3> <p>This variable holds the left coordinate of the source rectangle.</p> <!-- @@@sourceLeft --> <!-- $$$sourceTop --> <h3 class="fn" id="sourceTop-var"><a name="sourceTop-var"></a><span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> PixmapFragment::<span class="name">sourceTop</span></h3> <p>This variable holds the top coordinate of the source rectangle.</p> <!-- @@@sourceTop --> <!-- $$$width --> <h3 class="fn" id="width-var"><a name="width-var"></a><span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> PixmapFragment::<span class="name">width</span></h3> <p>This variable holds the width of the source rectangle and is used to calculate the width of the target rectangle.</p> <!-- @@@width --> <!-- $$$x --> <h3 class="fn" id="x-var"><a name="x-var"></a><span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> PixmapFragment::<span class="name">x</span></h3> <p>This variable holds the x coordinate of center point in the target rectangle.</p> <!-- @@@x --> <!-- $$$y --> <h3 class="fn" id="y-var"><a name="y-var"></a><span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> PixmapFragment::<span class="name">y</span></h3> <p>This variable holds the y coordinate of the center point in the target rectangle.</p> <!-- @@@y --> </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>