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.
182 lines
7.6 KiB
182 lines
7.6 KiB
13 years ago
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
||
6 months ago
|
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/tqptrdict.doc:319 -->
|
||
|
13 years ago
|
<html>
|
||
|
|
<head>
|
||
|
|
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
||
|
|
<title>TQPtrDictIterator 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>TQPtrDictIterator Class Reference</h1>
|
||
|
|
|
||
|
|
<p>The TQPtrDictIterator class provides an iterator for TQPtrDict collections.
|
||
|
|
<a href="#details">More...</a>
|
||
|
6 months ago
|
<p><tt>#include <<a href="tqptrdict-h.html">tqptrdict.h</a>></tt>
|
||
|
|
<p><a href="tqptrdictiterator-members.html">List of all member functions.</a>
|
||
|
13 years ago
|
<h2>Public Members</h2>
|
||
|
|
<ul>
|
||
|
|
<li class=fn><a href="#TQPtrDictIterator"><b>TQPtrDictIterator</b></a> ( const TQPtrDict<type> & dict )</li>
|
||
|
|
<li class=fn><a href="#~TQPtrDictIterator"><b>~TQPtrDictIterator</b></a> ()</li>
|
||
|
|
<li class=fn>uint <a href="#count"><b>count</b></a> () const</li>
|
||
|
|
<li class=fn>bool <a href="#isEmpty"><b>isEmpty</b></a> () const</li>
|
||
|
|
<li class=fn>type * <a href="#toFirst"><b>toFirst</b></a> ()</li>
|
||
|
|
<li class=fn><a href="#operator-type-*"><b>operator type *</b></a> () const</li>
|
||
|
|
<li class=fn>type * <a href="#current"><b>current</b></a> () const</li>
|
||
|
|
<li class=fn>void * <a href="#currentKey"><b>currentKey</b></a> () const</li>
|
||
|
|
<li class=fn>type * <a href="#operator()"><b>operator()</b></a> ()</li>
|
||
|
|
<li class=fn>type * <a href="#operator++"><b>operator++</b></a> ()</li>
|
||
|
|
<li class=fn>type * <a href="#operator+-eq"><b>operator+=</b></a> ( uint jump )</li>
|
||
|
|
</ul>
|
||
|
|
<hr><a name="details"></a><h2>Detailed Description</h2>
|
||
|
|
|
||
|
|
|
||
|
6 months ago
|
The TQPtrDictIterator class provides an iterator for <a href="tqptrdict.html">TQPtrDict</a> collections.
|
||
|
13 years ago
|
<p>
|
||
|
|
|
||
|
|
<p> TQPtrDictIterator is implemented as a template class. Define a
|
||
|
|
template instance TQPtrDictIterator<X> to create a dictionary
|
||
|
|
iterator that operates on TQPtrDict<X> (dictionary of X*).
|
||
|
|
<p> Example:
|
||
|
|
<pre>
|
||
|
6 months ago
|
<a href="tqptrdict.html">TQPtrDict</a><char> fields;
|
||
|
13 years ago
|
|
||
|
13 years ago
|
<a href="ntqlineedit.html">TQLineEdit</a> *le1 = new <a href="ntqlineedit.html">TQLineEdit</a>( this );
|
||
|
|
le1-><a href="ntqlineedit.html#setText">setText</a>( "Simpson" );
|
||
|
|
<a href="ntqlineedit.html">TQLineEdit</a> *le2 = new <a href="ntqlineedit.html">TQLineEdit</a>( this );
|
||
|
|
le2-><a href="ntqlineedit.html#setText">setText</a>( "Homer" );
|
||
|
|
<a href="ntqlineedit.html">TQLineEdit</a> *le3 = new <a href="ntqlineedit.html">TQLineEdit</a>( this );
|
||
|
|
le3-><a href="ntqlineedit.html#setText">setText</a>( "45" );
|
||
|
13 years ago
|
|
||
|
6 months ago
|
fields.<a href="tqptrdict.html#insert">insert</a>( le1, "Surname" );
|
||
|
|
fields.<a href="tqptrdict.html#insert">insert</a>( le2, "Forename" );
|
||
|
|
fields.<a href="tqptrdict.html#insert">insert</a>( le3, "Age" );
|
||
|
13 years ago
|
|
||
|
|
TQPtrDictIterator<char> it( fields );
|
||
|
|
for( ; it.<a href="#current">current</a>(); ++it ) {
|
||
|
13 years ago
|
<a href="ntqlineedit.html">TQLineEdit</a> *le = (TQLineEdit)it.<a href="#currentKey">currentKey</a>();
|
||
|
|
cout << it.<a href="#current">current</a>() << ": " << le-><a href="ntqlineedit.html#text">text</a>() << endl;
|
||
|
13 years ago
|
}
|
||
|
|
cout << endl;
|
||
|
|
|
||
|
|
// Output (random order):
|
||
|
|
// Forename: Homer
|
||
|
|
// Age: 45
|
||
|
|
// Surname: Simpson
|
||
|
|
</pre>
|
||
|
|
|
||
|
|
In the example we insert some line edits into a dictionary,
|
||
|
|
associating a string with each. We then iterate over the
|
||
|
|
dictionary printing the associated strings.
|
||
|
|
<p> Multiple iterators may independently traverse the same dictionary.
|
||
|
6 months ago
|
A <a href="tqptrdict.html">TQPtrDict</a> knows about all the iterators that are operating on the
|
||
|
13 years ago
|
dictionary. When an item is removed from the dictionary, TQPtrDict
|
||
|
|
updates all iterators that refer the removed item to point to the
|
||
|
|
next item in the traversing order.
|
||
|
6 months ago
|
<p> <p>See also <a href="tqptrdict.html">TQPtrDict</a>, <a href="collection.html">Collection Classes</a>, and <a href="tools.html">Non-GUI Classes</a>.
|
||
|
13 years ago
|
|
||
|
|
<hr><h2>Member Function Documentation</h2>
|
||
|
6 months ago
|
<h3 class=fn><a name="TQPtrDictIterator"></a>TQPtrDictIterator::TQPtrDictIterator ( const <a href="tqptrdict.html">TQPtrDict</a><type> & dict )
|
||
|
13 years ago
|
</h3>
|
||
|
|
|
||
|
|
<p> Constructs an iterator for <em>dict</em>. The current iterator item is
|
||
|
|
set to point on the first item in the <em>dict</em>.
|
||
|
|
|
||
|
|
<h3 class=fn><a name="~TQPtrDictIterator"></a>TQPtrDictIterator::~TQPtrDictIterator ()
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Destroys the iterator.
|
||
|
|
|
||
|
|
<h3 class=fn>uint <a name="count"></a>TQPtrDictIterator::count () const
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Returns the number of items in the dictionary this iterator
|
||
|
|
operates on.
|
||
|
|
<p> <p>See also <a href="#isEmpty">isEmpty</a>().
|
||
|
|
|
||
|
|
<h3 class=fn>type * <a name="current"></a>TQPtrDictIterator::current () const
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Returns a pointer to the current iterator item's value.
|
||
|
|
|
||
|
|
<h3 class=fn>void * <a name="currentKey"></a>TQPtrDictIterator::currentKey () const
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Returns the current iterator item's key.
|
||
|
|
|
||
|
|
<h3 class=fn>bool <a name="isEmpty"></a>TQPtrDictIterator::isEmpty () const
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Returns TRUE if the dictionary is empty; otherwise returns FALSE.
|
||
|
|
<p> <p>See also <a href="#count">count</a>().
|
||
|
|
|
||
|
|
<h3 class=fn><a name="operator-type-*"></a>TQPtrDictIterator::operator type * () const
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Cast operator. Returns a pointer to the current iterator item.
|
||
|
|
Same as <a href="#current">current</a>().
|
||
|
|
|
||
|
|
<h3 class=fn>type * <a name="operator()"></a>TQPtrDictIterator::operator() ()
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Makes the succeeding item current and returns the original current
|
||
|
|
item.
|
||
|
|
<p> If the current iterator item was the last item in the dictionary
|
||
|
|
or if it was 0, 0 is returned.
|
||
|
|
|
||
|
|
<h3 class=fn>type * <a name="operator++"></a>TQPtrDictIterator::operator++ ()
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Prefix ++ makes the succeeding item current and returns the new
|
||
|
|
current item.
|
||
|
|
<p> If the current iterator item was the last item in the dictionary
|
||
|
|
or if it was 0, 0 is returned.
|
||
|
|
|
||
|
|
<h3 class=fn>type * <a name="operator+-eq"></a>TQPtrDictIterator::operator+= ( uint jump )
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Sets the current item to the item <em>jump</em> positions after the
|
||
|
|
current item and returns a pointer to that item.
|
||
|
|
<p> If that item is beyond the last item or if the dictionary is
|
||
|
|
empty, it sets the current item to 0 and returns 0.
|
||
|
|
|
||
|
|
<h3 class=fn>type * <a name="toFirst"></a>TQPtrDictIterator::toFirst ()
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Sets the current iterator item to point to the first item in the
|
||
|
|
dictionary and returns a pointer to the item. If the dictionary is
|
||
|
|
empty, it sets the current item to 0 and returns 0.
|
||
|
|
|
||
|
|
<!-- 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>
|