<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qgesture.cpp --> <title>QPanGesture Class | 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 >QPanGesture</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="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#properties">Properties</a></li> <li class="level1"><a href="#public-functions">Public Functions</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">QPanGesture Class</h1> <!-- $$$QPanGesture-brief --> <p>The <a href="qpangesture.html">QPanGesture</a> class describes a panning gesture made by the user. <a href="#details">More...</a></p> <!-- @@@QPanGesture --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QPanGesture></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"> Since:</td><td class="memItemRight bottomAlign"> Qt 4.6</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qgesture.html">QGesture</a></td></tr></table></div><ul> <li><a href="qpangesture-members.html">List of all members, including inherited members</a></li> <li><a href="qpangesture-obsolete.html">Obsolete members</a></li> </ul> <a name="properties"></a> <h2 id="properties">Properties</h2> <ul> <li class="fn"><b><a href="qpangesture.html#acceleration-prop">acceleration</a></b> : qreal</li> <li class="fn"><b><a href="qpangesture.html#delta-prop">delta</a></b> : const QPointF</li> <li class="fn"><b><a href="qpangesture.html#lastOffset-prop">lastOffset</a></b> : QPointF</li> <li class="fn"><b><a href="qpangesture.html#offset-prop">offset</a></b> : QPointF</li> </ul> <ul> <li class="fn">5 properties inherited from <a href="qgesture.html#properties">QGesture</a></li> <li class="fn">1 property inherited from <a href="../qtcore/qobject.html#properties">QObject</a></li> </ul> <a name="public-functions"></a> <h2 id="public-functions">Public Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> virtual </td><td class="memItemRight bottomAlign"><b><a href="qpangesture.html#dtor.QPanGesture">~QPanGesture</a></b>()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qpangesture.html#acceleration-prop">acceleration</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QPointF </td><td class="memItemRight bottomAlign"><b><a href="qpangesture.html#delta-prop">delta</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QPointF </td><td class="memItemRight bottomAlign"><b><a href="qpangesture.html#lastOffset-prop">lastOffset</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QPointF </td><td class="memItemRight bottomAlign"><b><a href="qpangesture.html#offset-prop">offset</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpangesture.html#acceleration-prop">setAcceleration</a></b>(qreal <i>value</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpangesture.html#lastOffset-prop">setLastOffset</a></b>(const QPointF &<i>value</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qpangesture.html#offset-prop">setOffset</a></b>(const QPointF &<i>value</i>)</td></tr> </table></div> <ul> <li class="fn">8 public functions inherited from <a href="qgesture.html#public-functions">QGesture</a></li> <li class="fn">31 public functions inherited from <a href="../qtcore/qobject.html#public-functions">QObject</a></li> </ul> <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"> const QMetaObject </td><td class="memItemRight bottomAlign"><b><a href="qpangesture.html#staticMetaObject-var">staticMetaObject</a></b></td></tr> </table></div> <ul> <li class="fn">9 static public members inherited from <a href="../qtcore/qobject.html#static-public-members">QObject</a></li> </ul> <h3>Additional Inherited Members</h3> <ul> <li class="fn">1 public slot inherited from <a href="../qtcore/qobject.html#public-slots">QObject</a></li> <li class="fn">2 signals inherited from <a href="../qtcore/qobject.html#signals">QObject</a></li> <li class="fn">9 protected functions inherited from <a href="../qtcore/qobject.html#protected-functions">QObject</a></li> </ul> <a name="details"></a> <!-- $$$QPanGesture-description --> <div class="descr"> <h2 id="details">Detailed Description</h2> <p>The <a href="qpangesture.html">QPanGesture</a> class describes a panning gesture made by the user.</p> <p class="centerAlign"><img src="images/pangesture.png" alt="" /></p><p>For an overview of gesture handling in Qt and information on using gestures in your applications, see the <a href="gestures-overview.html">Gestures in Widgets and Graphics View</a> document.</p> </div> <p><b>See also </b><a href="qpinchgesture.html">QPinchGesture</a> and <a href="qswipegesture.html">QSwipeGesture</a>.</p> <!-- @@@QPanGesture --> <div class="prop"> <h2>Property Documentation</h2> <!-- $$$acceleration-prop$$$acceleration$$$setAccelerationqreal --> <h3 class="fn" id="acceleration-prop"><a name="acceleration-prop"></a><span class="name">acceleration</span> : <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span></h3> <p>This property holds the acceleration in the motion of the touch point for this gesture</p> <p><b>Access functions:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><span class="name"><b>acceleration</b></span>() const</td></tr> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setAcceleration</b></span>(qreal <i>value</i>)</td></tr> </table></div> <!-- @@@acceleration --> <!-- $$$delta-prop$$$delta --> <h3 class="fn" id="delta-prop"><a name="delta-prop"></a><span class="name">delta</span> : const <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span></h3> <p>This property holds the offset from the previous input position to the current input</p> <p>This is essentially the same as the difference between <a href="qpangesture.html#offset-prop">offset</a>() and <a href="qpangesture.html#lastOffset-prop">lastOffset</a>().</p> <p><b>Access functions:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> QPointF </td><td class="memItemRight bottomAlign"><span class="name"><b>delta</b></span>() const</td></tr> </table></div> <!-- @@@delta --> <!-- $$$lastOffset-prop$$$lastOffset$$$setLastOffsetconstQPointF& --> <h3 class="fn" id="lastOffset-prop"><a name="lastOffset-prop"></a><span class="name">lastOffset</span> : <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span></h3> <p>This property holds the last offset recorded for this gesture</p> <p>The last offset contains the change in position of the user's input as reported in the <a href="qpangesture.html#offset-prop">offset</a> property when a previous gesture event was delivered for this gesture.</p> <p>If no previous event was delivered with information about this gesture (i.e., this gesture object contains information about the first movement in the gesture) then this property contains a zero size.</p> <p><b>Access functions:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> QPointF </td><td class="memItemRight bottomAlign"><span class="name"><b>lastOffset</b></span>() const</td></tr> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setLastOffset</b></span>(const QPointF &<i>value</i>)</td></tr> </table></div> <!-- @@@lastOffset --> <!-- $$$offset-prop$$$offset$$$setOffsetconstQPointF& --> <h3 class="fn" id="offset-prop"><a name="offset-prop"></a><span class="name">offset</span> : <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span></h3> <p>This property holds the total offset from the first input position to the current input position</p> <p>The offset measures the total change in position of the user's input covered by the gesture on the input device.</p> <p><b>Access functions:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> QPointF </td><td class="memItemRight bottomAlign"><span class="name"><b>offset</b></span>() const</td></tr> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setOffset</b></span>(const QPointF &<i>value</i>)</td></tr> </table></div> <!-- @@@offset --> </div> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$~QPanGesture[overload1]$$$~QPanGesture --> <h3 class="fn" id="dtor.QPanGesture"><a name="dtor.QPanGesture"></a><code>[virtual] </code>QPanGesture::<span class="name">~QPanGesture</span>()</h3> <p>Destructor.</p> <!-- @@@~QPanGesture --> </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>