<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qdeclarativeplaceattribute.cpp --> <title>PlaceAttribute QML Type | Qt Location 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="qtlocation-index.html">Qt Location</a></td><td ><a href="qtlocation-qmlmodule.html">QML Types</a></td><td >PlaceAttribute QML Type</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="#properties">Properties</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">PlaceAttribute QML Type</h1> <span class="subtitle"></span> <!-- $$$PlaceAttribute-brief --> <p>The <a href="qml-qtlocation-placeattribute.html">PlaceAttribute</a> type holds generic place attribute information. <a href="#details">More...</a></p> <!-- @@@PlaceAttribute --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> import QtLocation 5.3</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt Location 5.5</td></tr></table></div><ul> <li><a href="qml-qtlocation-placeattribute-members.html">List of all members, including inherited members</a></li> </ul> <a name="properties"></a> <h2 id="properties">Properties</h2> <ul> <li class="fn"><b><b><a href="qml-qtlocation-placeattribute.html#attribute-prop">attribute</a></b></b> : QPlaceAttribute</li> <li class="fn"><b><b><a href="qml-qtlocation-placeattribute.html#label-prop">label</a></b></b> : string</li> <li class="fn"><b><b><a href="qml-qtlocation-placeattribute.html#text-prop">text</a></b></b> : string</li> </ul> <!-- $$$PlaceAttribute-description --> <a name="details"></a> <h2 id="details">Detailed Description</h2> <p>A place attribute stores an additional piece of information about a <a href="qml-qtlocation-place.html">Place</a> that is not otherwise exposed through the <a href="qml-qtlocation-place.html">Place</a> type. A <a href="qml-qtlocation-placeattribute.html">PlaceAttribute</a> is a textual piece of data, accessible through the <a href="qml-qtlocation-placeattribute.html#text-prop">text</a> property, and a <a href="qml-qtlocation-placeattribute.html#label-prop">label</a>. Both the <a href="qml-qtlocation-placeattribute.html#text-prop">text</a> and <a href="qml-qtlocation-placeattribute.html#label-prop">label</a> properties are intended to be displayed to the user. PlaceAttributes are stored in an <a href="qml-qtlocation-extendedattributes.html">ExtendedAttributes</a> map with a unique key.</p> <p>The following example shows how to display all attributes in a list:</p> <pre class="qml"> import QtQuick 2.0 import QtPositioning 5.5 import QtLocation 5.6 <span class="type">ListView</span> { <span class="name">model</span>: <span class="name">place</span>.<span class="name">extendedAttributes</span>.<span class="name">keys</span>() <span class="name">delegate</span>: <span class="name">Text</span> { <span class="name">text</span>: <span class="string">"<b>"</span> <span class="operator">+</span> <span class="name">place</span>.<span class="name">extendedAttributes</span>[<span class="name">modelData</span>].<span class="name">label</span> <span class="operator">+</span> <span class="string">": </b>"</span> <span class="operator">+</span> <span class="name">place</span>.<span class="name">extendedAttributes</span>[<span class="name">modelData</span>].<span class="name">text</span> } } </pre> <p>The following example shows how to assign and modify an attribute:</p> <pre class="qml"> <span class="comment">//assign a new attribute to a place</span> var <span class="name">smokingAttrib</span> = <span class="name">Qt</span>.<span class="name">createQmlObject</span>(<span class="string">'import QtLocation 5.3; PlaceAttribute {}'</span>, <span class="name">place</span>); <span class="name">smokingAttrib</span>.<span class="name">label</span> <span class="operator">=</span> <span class="string">"Smoking Allowed"</span> <span class="name">smokingAttrib</span>.<span class="name">text</span> <span class="operator">=</span> <span class="string">"No"</span> <span class="name">place</span>.<span class="name">extendedAttributes</span>.<span class="name">smoking</span> <span class="operator">=</span> <span class="name">smokingAttrib</span>; <span class="comment">//modify an existing attribute</span> <span class="name">place</span>.<span class="name">extendedAttributes</span>.<span class="name">smoking</span>.<span class="name">text</span> <span class="operator">=</span> <span class="string">"Yes"</span> </pre> <!-- @@@PlaceAttribute --> <h2>Property Documentation</h2> <!-- $$$attribute --> <div class="qmlitem"><div class="qmlproto"> <div class="table"><table class="qmlname"> <tr valign="top" class="odd" id="attribute-prop"> <td class="tblQmlPropNode"><p> <a name="attribute-prop"></a><span class="name">attribute</span> : <span class="type">QPlaceAttribute</span></p></td></tr> </table></div> </div><div class="qmldoc"><p>For details on how to use this property to interface between C++ and QML see "<a href="location-cpp-qml.html#placeattribute-qplaceattribute">Interfaces between C++ and QML Code</a>".</p> </div></div><!-- @@@attribute --> <br/> <!-- $$$label --> <div class="qmlitem"><div class="qmlproto"> <div class="table"><table class="qmlname"> <tr valign="top" class="odd" id="label-prop"> <td class="tblQmlPropNode"><p> <a name="label-prop"></a><span class="name">label</span> : <span class="type">string</span></p></td></tr> </table></div> </div><div class="qmldoc"><p>This property holds the attribute label which is a user visible string describing the attribute.</p> </div></div><!-- @@@label --> <br/> <!-- $$$text --> <div class="qmlitem"><div class="qmlproto"> <div class="table"><table class="qmlname"> <tr valign="top" class="odd" id="text-prop"> <td class="tblQmlPropNode"><p> <a name="text-prop"></a><span class="name">text</span> : <span class="type">string</span></p></td></tr> </table></div> </div><div class="qmldoc"><p>This property holds the attribute text which can be used to show additional information about the place.</p> </div></div><!-- @@@text --> <br/> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd. 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