You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
qt3/doc/html/qglayoutiterator.html

99 lines
4.8 KiB

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/kernel/qabstractlayout.cpp:1521 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>QGLayoutIterator Class</title>
<style type="text/css"><!--
fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }
body { background: #ffffff; color: black; }
--></style>
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr bgcolor="#E5E5E5">
<td valign=center>
<a href="index.html">
<font color="#004faf">Home</font></a>
| <a href="classes.html">
<font color="#004faf">All&nbsp;Classes</font></a>
| <a href="mainclasses.html">
<font color="#004faf">Main&nbsp;Classes</font></a>
| <a href="annotated.html">
<font color="#004faf">Annotated</font></a>
| <a href="groups.html">
<font color="#004faf">Grouped&nbsp;Classes</font></a>
| <a href="functions.html">
<font color="#004faf">Functions</font></a>
</td>
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QGLayoutIterator Class Reference</h1>
<p>The QGLayoutIterator class is an abstract base class of internal layout iterators.
<a href="#details">More...</a>
<p><tt>#include &lt;<a href="qlayout-h.html">qlayout.h</a>&gt;</tt>
<p><a href="qglayoutiterator-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn>virtual <a href="#~QGLayoutIterator"><b>~QGLayoutIterator</b></a> ()</li>
<li class=fn>virtual QLayoutItem * <a href="#next"><b>next</b></a> () = 0</li>
<li class=fn>virtual QLayoutItem * <a href="#current"><b>current</b></a> () = 0</li>
<li class=fn>virtual QLayoutItem * <a href="#takeCurrent"><b>takeCurrent</b></a> () = 0</li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
The QGLayoutIterator class is an abstract base class of internal layout iterators.
<p>
<p> (This class is <em>not</em> OpenGL related, it just happens to start with
the letters <a href="qgl.html">QGL</a>...)
<p> Subclass this class to create a custom layout. The functions that
must be implemented are <a href="#next">next</a>(), <a href="#current">current</a>(), and <a href="#takeCurrent">takeCurrent</a>().
<p> The QGLayoutIterator implements the functionality of
<a href="qlayoutiterator.html">QLayoutIterator</a>. Each subclass of <a href="qlayout.html">QLayout</a> needs a
QGLayoutIterator subclass.
<p>See also <a href="appearance.html">Widget Appearance and Style</a> and <a href="geomanagement.html">Layout Management</a>.
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="~QGLayoutIterator"></a>QGLayoutIterator::~QGLayoutIterator ()<tt> [virtual]</tt>
</h3>
Destroys the iterator
<h3 class=fn><a href="qlayoutitem.html">QLayoutItem</a>&nbsp;* <a name="current"></a>QGLayoutIterator::current ()<tt> [pure virtual]</tt>
</h3>
<p> Implemented in subclasses to return the current item, or 0 if
there is no current item.
<p>Examples: <a href="customlayout-example.html#x1486">customlayout/border.cpp</a>, <a href="customlayout-example.html#x1508">customlayout/card.cpp</a>, and <a href="customlayout-example.html#x1464">customlayout/flow.cpp</a>.
<h3 class=fn><a href="qlayoutitem.html">QLayoutItem</a>&nbsp;* <a name="next"></a>QGLayoutIterator::next ()<tt> [pure virtual]</tt>
</h3>
<p> Implemented in subclasses to move the iterator to the next item
and return that item, or 0 if there is no next item.
<p>Examples: <a href="customlayout-example.html#x1487">customlayout/border.cpp</a>, <a href="customlayout-example.html#x1509">customlayout/card.cpp</a>, and <a href="customlayout-example.html#x1465">customlayout/flow.cpp</a>.
<h3 class=fn><a href="qlayoutitem.html">QLayoutItem</a>&nbsp;* <a name="takeCurrent"></a>QGLayoutIterator::takeCurrent ()<tt> [pure virtual]</tt>
</h3>
<p> Implemented in subclasses. The function must remove the current
item from the layout without deleting it, move the iterator to the
next item and return the removed item, or 0 if no item was
removed.
<p>Examples: <a href="customlayout-example.html#x1488">customlayout/border.cpp</a>, <a href="customlayout-example.html#x1510">customlayout/card.cpp</a>, and <a href="customlayout-example.html#x1466">customlayout/flow.cpp</a>.
<!-- eof -->
<hr><p>
This file is part of the <a href="index.html">Qt toolkit</a>.
Copyright &copy; 1995-2007
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
<table width=100% cellspacing=0 border=0><tr>
<td>Copyright &copy; 2007
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
<td align=right><div align=right>Qt 3.3.8</div>
</table></div></address></body>
</html>