<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qmediatimerange.cpp --> <title>QMediaTimeInterval Class | Qt Multimedia 5.9</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 5.9</td><td ><a href="qtmultimedia-index.html">Qt Multimedia</a></td><td ><a href="qtmultimedia-modules.html">C++ Classes</a></td><td >QMediaTimeInterval</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</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-functions">Public Functions</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">QMediaTimeInterval Class</h1> <!-- $$$QMediaTimeInterval-brief --> <p>The <a href="qmediatimeinterval.html">QMediaTimeInterval</a> class represents a time interval with integer precision. <a href="#details">More...</a></p> <!-- @@@QMediaTimeInterval --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QMediaTimeInterval></span> </td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += multimedia</td></tr></table></div><ul> <li><a href="qmediatimeinterval-members.html">List of all members, including inherited members</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"> </td><td class="memItemRight bottomAlign"><b><a href="qmediatimeinterval.html#QMediaTimeInterval">QMediaTimeInterval</a></b>()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediatimeinterval.html#QMediaTimeInterval-1">QMediaTimeInterval</a></b>(qint64 <i>start</i>, qint64 <i>end</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediatimeinterval.html#QMediaTimeInterval-2">QMediaTimeInterval</a></b>(const QMediaTimeInterval &<i>other</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qmediatimeinterval.html#contains">contains</a></b>(qint64 <i>time</i>) const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> qint64 </td><td class="memItemRight bottomAlign"><b><a href="qmediatimeinterval.html#end">end</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qmediatimeinterval.html#isNormal">isNormal</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QMediaTimeInterval </td><td class="memItemRight bottomAlign"><b><a href="qmediatimeinterval.html#normalized">normalized</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> qint64 </td><td class="memItemRight bottomAlign"><b><a href="qmediatimeinterval.html#start">start</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QMediaTimeInterval </td><td class="memItemRight bottomAlign"><b><a href="qmediatimeinterval.html#translated">translated</a></b>(qint64 <i>offset</i>) const</td></tr> </table></div> <a name="details"></a> <!-- $$$QMediaTimeInterval-description --> <div class="descr"> <h2 id="details">Detailed Description</h2> <p>The <a href="qmediatimeinterval.html">QMediaTimeInterval</a> class represents a time interval with integer precision.</p> <p>An interval is specified by an inclusive <a href="qmediatimeinterval.html#start">start</a>() and <a href="qmediatimeinterval.html#end">end</a>() time. These must be set in the constructor, as this is an immutable class. The specific units of time represented by the class have not been defined - it is suitable for any times which can be represented by a signed 64 bit integer.</p> <p>The <a href="qmediatimeinterval.html#isNormal">isNormal</a>() method determines if a time interval is normal (a normal time interval has <a href="qmediatimeinterval.html#start">start</a>() <= <a href="qmediatimeinterval.html#end">end</a>()). A normal interval can be received from an abnormal interval by calling the <a href="qmediatimeinterval.html#normalized">normalized</a>() method.</p> <p>The <a href="qmediatimeinterval.html#contains">contains</a>() method determines if a specified time lies within the time interval.</p> <p>The <a href="qmediatimeinterval.html#translated">translated</a>() method returns a time interval which has been translated forwards or backwards through time by a specified offset.</p> </div> <p><b>See also </b><a href="qmediatimerange.html">QMediaTimeRange</a>.</p> <!-- @@@QMediaTimeInterval --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$QMediaTimeInterval[overload1]$$$QMediaTimeInterval --> <h3 class="fn" id="QMediaTimeInterval"><a name="QMediaTimeInterval"></a>QMediaTimeInterval::<span class="name">QMediaTimeInterval</span>()</h3> <p>Constructs an empty interval.</p> <!-- @@@QMediaTimeInterval --> <!-- $$$QMediaTimeInterval$$$QMediaTimeIntervalqint64qint64 --> <h3 class="fn" id="QMediaTimeInterval-1"><a name="QMediaTimeInterval-1"></a>QMediaTimeInterval::<span class="name">QMediaTimeInterval</span>(<span class="type">qint64</span> <i>start</i>, <span class="type">qint64</span> <i>end</i>)</h3> <p>Constructs an interval with the specified <i>start</i> and <i>end</i> times.</p> <!-- @@@QMediaTimeInterval --> <!-- $$$QMediaTimeInterval$$$QMediaTimeIntervalconstQMediaTimeInterval& --> <h3 class="fn" id="QMediaTimeInterval-2"><a name="QMediaTimeInterval-2"></a>QMediaTimeInterval::<span class="name">QMediaTimeInterval</span>(const <span class="type"><a href="qmediatimeinterval.html#QMediaTimeInterval">QMediaTimeInterval</a></span> &<i>other</i>)</h3> <p>Constructs an interval by taking a copy of <i>other</i>.</p> <!-- @@@QMediaTimeInterval --> <!-- $$$contains[overload1]$$$containsqint64 --> <h3 class="fn" id="contains"><a name="contains"></a><span class="type">bool</span> QMediaTimeInterval::<span class="name">contains</span>(<span class="type">qint64</span> <i>time</i>) const</h3> <p>Returns true if the time interval contains the specified <i>time</i>. That is, <a href="qmediatimeinterval.html#start">start</a>() <= time <= <a href="qmediatimeinterval.html#end">end</a>().</p> <!-- @@@contains --> <!-- $$$end[overload1]$$$end --> <h3 class="fn" id="end"><a name="end"></a><span class="type">qint64</span> QMediaTimeInterval::<span class="name">end</span>() const</h3> <p>Returns the end time of the interval.</p> <p><b>See also </b><a href="qmediatimeinterval.html#start">start</a>().</p> <!-- @@@end --> <!-- $$$isNormal[overload1]$$$isNormal --> <h3 class="fn" id="isNormal"><a name="isNormal"></a><span class="type">bool</span> QMediaTimeInterval::<span class="name">isNormal</span>() const</h3> <p>Returns true if this time interval is normal. A normal time interval has <a href="qmediatimeinterval.html#start">start</a>() <= <a href="qmediatimeinterval.html#end">end</a>().</p> <p><b>See also </b><a href="qmediatimeinterval.html#normalized">normalized</a>().</p> <!-- @@@isNormal --> <!-- $$$normalized[overload1]$$$normalized --> <h3 class="fn" id="normalized"><a name="normalized"></a><span class="type"><a href="qmediatimeinterval.html#QMediaTimeInterval">QMediaTimeInterval</a></span> QMediaTimeInterval::<span class="name">normalized</span>() const</h3> <p>Returns a normalized version of this interval.</p> <p>If the <a href="qmediatimeinterval.html#start">start</a>() time of the interval is greater than the <a href="qmediatimeinterval.html#end">end</a>() time, then the returned interval has the start and end times swapped.</p> <!-- @@@normalized --> <!-- $$$start[overload1]$$$start --> <h3 class="fn" id="start"><a name="start"></a><span class="type">qint64</span> QMediaTimeInterval::<span class="name">start</span>() const</h3> <p>Returns the start time of the interval.</p> <p><b>See also </b><a href="qmediatimeinterval.html#end">end</a>().</p> <!-- @@@start --> <!-- $$$translated[overload1]$$$translatedqint64 --> <h3 class="fn" id="translated"><a name="translated"></a><span class="type"><a href="qmediatimeinterval.html#QMediaTimeInterval">QMediaTimeInterval</a></span> QMediaTimeInterval::<span class="name">translated</span>(<span class="type">qint64</span> <i>offset</i>) const</h3> <p>Returns a copy of this time interval, translated by a value of <i>offset</i>. An interval can be moved forward through time with a positive offset, or backward through time with a negative offset.</p> <!-- @@@translated --> </div> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2017 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>