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.
124 lines
5.5 KiB
124 lines
5.5 KiB
13 years ago
|
<!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/qfocusdata.cpp:40 -->
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
||
|
|
<title>TQFocusData 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 Classes</font></a>
|
||
|
|
| <a href="mainclasses.html">
|
||
|
|
<font color="#004faf">Main Classes</font></a>
|
||
|
|
| <a href="annotated.html">
|
||
|
|
<font color="#004faf">Annotated</font></a>
|
||
|
|
| <a href="groups.html">
|
||
|
|
<font color="#004faf">Grouped 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>TQFocusData Class Reference</h1>
|
||
|
|
|
||
|
|
<p>The TQFocusData class maintains the list of widgets in the focus
|
||
|
|
chain.
|
||
|
|
<a href="#details">More...</a>
|
||
|
13 years ago
|
<p><tt>#include <<a href="qfocusdata-h.html">ntqfocusdata.h</a>></tt>
|
||
|
13 years ago
|
<p><a href="qfocusdata-members.html">List of all member functions.</a>
|
||
|
|
<h2>Public Members</h2>
|
||
|
|
<ul>
|
||
|
|
<li class=fn>TQWidget * <a href="#focusWidget"><b>focusWidget</b></a> () const</li>
|
||
|
|
<li class=fn>TQWidget * <a href="#home"><b>home</b></a> ()</li>
|
||
|
|
<li class=fn>TQWidget * <a href="#next"><b>next</b></a> ()</li>
|
||
|
|
<li class=fn>TQWidget * <a href="#prev"><b>prev</b></a> ()</li>
|
||
|
|
<li class=fn>TQWidget * <a href="#first"><b>first</b></a> () const</li>
|
||
|
|
<li class=fn>TQWidget * <a href="#last"><b>last</b></a> () const</li>
|
||
|
|
<li class=fn>int <a href="#count"><b>count</b></a> () const</li>
|
||
|
|
</ul>
|
||
|
|
<hr><a name="details"></a><h2>Detailed Description</h2>
|
||
|
|
|
||
|
|
|
||
|
|
The TQFocusData class maintains the list of widgets in the focus
|
||
|
|
chain.
|
||
|
|
<p>
|
||
|
|
<p> This read-only list always contains at least one widget (i.e. the
|
||
|
|
top-level widget). It provides a simple cursor which can be reset
|
||
|
|
to the current focus widget using <a href="#home">home</a>(), or moved to its
|
||
|
|
neighboring widgets using <a href="#next">next</a>() and <a href="#prev">prev</a>(). You can also retrieve
|
||
|
|
the <a href="#count">count</a>() of the number of widgets in the list. The list is a
|
||
|
|
loop, so if you keep iterating, for example using next(), you will
|
||
|
|
never come to the end.
|
||
|
|
<p> Some widgets in the list may not accept focus. Widgets are added
|
||
|
|
to the list as necessary, but not removed from it. This lets
|
||
|
|
widgets change focus policy dynamically without disrupting the
|
||
|
|
focus chain the user experiences. When a widget disables and
|
||
|
|
re-enables tab focus, its position in the focus chain does not
|
||
|
|
change.
|
||
|
13 years ago
|
<p> When reimplementing <a href="ntqwidget.html#focusNextPrevChild">TQWidget::focusNextPrevChild</a>() to provide
|
||
|
|
special focus flow, you will usually call <a href="ntqwidget.html#focusData">TQWidget::focusData</a>() to
|
||
|
13 years ago
|
retrieve the focus data stored at the top-level widget. A
|
||
|
|
top-level widget's focus data contains the focus list for its
|
||
|
|
hierarchy of widgets.
|
||
|
|
<p> The cursor may change at any time.
|
||
|
|
<p> This class is <em>not</em> thread-safe.
|
||
|
13 years ago
|
<p> <p>See also <a href="ntqwidget.html#focusNextPrevChild">TQWidget::focusNextPrevChild</a>(), <a href="ntqwidget.html#setTabOrder">TQWidget::setTabOrder</a>(), <a href="ntqwidget.html#focusPolicy-prop">TQWidget::focusPolicy</a>, and <a href="misc.html">Miscellaneous Classes</a>.
|
||
|
13 years ago
|
|
||
|
|
<hr><h2>Member Function Documentation</h2>
|
||
|
|
<h3 class=fn>int <a name="count"></a>TQFocusData::count () const
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Returns the number of widgets in the focus chain.
|
||
|
|
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqwidget.html">TQWidget</a> * <a name="first"></a>TQFocusData::first () const
|
||
|
13 years ago
|
</h3>
|
||
|
|
Returns the first widget in the focus chain.
|
||
|
|
The cursor is not modified.
|
||
|
|
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqwidget.html">TQWidget</a> * <a name="focusWidget"></a>TQFocusData::focusWidget () const
|
||
|
13 years ago
|
</h3>
|
||
|
|
|
||
|
|
<p> Returns the widgets in the hierarchy that are in the focus chain.
|
||
|
|
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqwidget.html">TQWidget</a> * <a name="home"></a>TQFocusData::home ()
|
||
|
13 years ago
|
</h3>
|
||
|
|
Moves the cursor to the <a href="#focusWidget">focusWidget</a>() and returns that widget. You
|
||
|
|
must call this before <a href="#next">next</a>() or <a href="#prev">prev</a>() to iterate meaningfully.
|
||
|
|
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqwidget.html">TQWidget</a> * <a name="last"></a>TQFocusData::last () const
|
||
|
13 years ago
|
</h3>
|
||
|
|
Returns the last widget in the focus chain.
|
||
|
|
The cursor is not modified.
|
||
|
|
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqwidget.html">TQWidget</a> * <a name="next"></a>TQFocusData::next ()
|
||
|
13 years ago
|
</h3>
|
||
|
|
Moves the cursor to the next widget in the focus chain. There is
|
||
|
|
<em>always</em> a next widget because the list is a loop.
|
||
|
|
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqwidget.html">TQWidget</a> * <a name="prev"></a>TQFocusData::prev ()
|
||
|
13 years ago
|
</h3>
|
||
|
|
Moves the cursor to the previous widget in the focus chain. There
|
||
|
|
is <em>always</em> a previous widget because the list is a loop.
|
||
|
|
|
||
|
|
<!-- eof -->
|
||
|
|
<hr><p>
|
||
|
|
This file is part of the <a href="index.html">TQt toolkit</a>.
|
||
|
|
Copyright © 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 © 2007
|
||
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
||
|
|
<td align=right><div align=right>TQt 3.3.8</div>
|
||
|
|
</table></div></address></body>
|
||
|
|
</html>
|