<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- qfontmetrics.cpp -->
<title>Obsolete Members for QFontMetrics | 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 >QFontMetrics</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="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">Obsolete Members for QFontMetrics</h1>
<p><b>The following members of class <a href="qfontmetrics.html">QFontMetrics</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>int </td><td class="memItemRight bottomAlign"><b><a href="qfontmetrics-obsolete.html#charWidth">charWidth</a></b>(const QString &<i>text</i>, int <i>pos</i>) const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>int </td><td class="memItemRight bottomAlign"><b><a href="qfontmetrics-obsolete.html#width">width</a></b>(const QString &<i>text</i>, int <i>len</i> = -1) const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>int </td><td class="memItemRight bottomAlign"><b><a href="qfontmetrics-obsolete.html#width-2">width</a></b>(QChar <i>ch</i>) const</td></tr>
</table></div>
<h2>Member Function Documentation</h2>
<!-- $$$charWidth[overload1]$$$charWidthconstQString&int -->
<h3 class="fn" id="charWidth"><a name="charWidth"></a><span class="type">int</span> QFontMetrics::<span class="name">charWidth</span>(const <span class="type"><a href="../qtcore/qstring.html">QString</a></span> &<i>text</i>, <span class="type">int</span> <i>pos</i>) const</h3>
<p>This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.</p>
<p>Returns the width of the character at position <i>pos</i> in the string <i>text</i>.</p>
<p>The whole string is needed, as the glyph drawn may change depending on the context (the letter before and after the current one) for some languages (e.g. Arabic).</p>
<p>This function also takes non spacing marks and ligatures into account.</p>
<!-- @@@charWidth -->
<!-- $$$width[overload1]$$$widthconstQString&int -->
<h3 class="fn" id="width"><a name="width"></a><span class="type">int</span> QFontMetrics::<span class="name">width</span>(const <span class="type"><a href="../qtcore/qstring.html">QString</a></span> &<i>text</i>, <span class="type">int</span> <i>len</i> = -1) const</h3>
<p>This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.</p>
<p>Returns the width in pixels of the first <i>len</i> characters of <i>text</i>. If <i>len</i> is negative (the default), the entire string is used.</p>
<p>Note that this value is <i>not</i> equal to <a href="qfontmetrics.html#boundingRect">boundingRect</a>().width(); <a href="qfontmetrics.html#boundingRect">boundingRect</a>() returns a rectangle describing the pixels this string will cover whereas width() returns the distance to where the next string should be drawn.</p>
<p><b>See also </b><a href="qfontmetrics.html#boundingRect">boundingRect</a>().</p>
<!-- @@@width -->
<!-- $$$width$$$widthQChar -->
<h3 class="fn" id="width-2"><a name="width-2"></a><span class="type">int</span> QFontMetrics::<span class="name">width</span>(<span class="type"><a href="../qtcore/qchar.html">QChar</a></span> <i>ch</i>) const</h3>
<p>This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.</p>
<p>This is an overloaded function.</p>
<p class="centerAlign"><img src="images/bearings.png" alt="Bearings" /></p><p>Returns the logical width of character <i>ch</i> in pixels. This is a distance appropriate for drawing a subsequent character after <i>ch</i>.</p>
<p>Some of the metrics are described in the image to the right. The central dark rectangles cover the logical <a href="qfontmetrics-obsolete.html#width">width</a>() of each character. The outer pale rectangles cover the <a href="qfontmetrics.html#leftBearing">leftBearing</a>() and <a href="qfontmetrics.html#rightBearing">rightBearing</a>() of each character. Notice that the bearings of "f" in this particular font are both negative, while the bearings of "o" are both positive.</p>
<p><b>Warning:</b> This function will produce incorrect results for Arabic characters or non-spacing marks in the middle of a string, as the glyph shaping and positioning of marks that happens when processing strings cannot be taken into account. When implementing an interactive text control, use <a href="qtextlayout.html">QTextLayout</a> instead.</p>
<p><b>See also </b><a href="qfontmetrics.html#boundingRect">boundingRect</a>().</p>
<!-- @@@width -->
</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>
distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-updates
>
by-pkgid
>
d5e62c01ae8d1e579463c6a871dd44bf
>
files
>
1415
