source: trunk/doc/html/qintdictiterator.html@ 208

Last change on this file since 208 was 190, checked in by rudi, 14 years ago

reference documentation added
File size: 7.2 KB
Line 
1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
2<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/qintdict.doc:314 -->
3<html>
4<head>
5<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
6<title>QIntDictIterator Class</title>
7<style type="text/css"><!--
8fn { margin-left: 1cm; text-indent: -1cm; }
9a:link { color: #004faf; text-decoration: none }
10a:visited { color: #672967; text-decoration: none }
11body { background: #ffffff; color: black; }
12--></style>
13</head>
14<body>
15
16<table border="0" cellpadding="0" cellspacing="0" width="100%">
17<tr bgcolor="#E5E5E5">
18<td valign=center>
19 <a href="index.html">
20<font color="#004faf">Home</font></a>
21 | <a href="classes.html">
22<font color="#004faf">All&nbsp;Classes</font></a>
23 | <a href="mainclasses.html">
24<font color="#004faf">Main&nbsp;Classes</font></a>
25 | <a href="annotated.html">
26<font color="#004faf">Annotated</font></a>
27 | <a href="groups.html">
28<font color="#004faf">Grouped&nbsp;Classes</font></a>
29 | <a href="functions.html">
30<font color="#004faf">Functions</font></a>
31</td>
32<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QIntDictIterator Class Reference</h1>
33
34<p>The QIntDictIterator class provides an iterator for QIntDict collections.
35<a href="#details">More...</a>
36<p><tt>#include &lt;<a href="qintdict-h.html">qintdict.h</a>&gt;</tt>
37<p><a href="qintdictiterator-members.html">List of all member functions.</a>
38<h2>Public Members</h2>
39<ul>
40<li class=fn><a href="#QIntDictIterator"><b>QIntDictIterator</b></a> ( const&nbsp;QIntDict&lt;type&gt;&nbsp;&amp;&nbsp;dict )</li>
41<li class=fn><a href="#~QIntDictIterator"><b>~QIntDictIterator</b></a> ()</li>
42<li class=fn>uint <a href="#count"><b>count</b></a> () const</li>
43<li class=fn>bool <a href="#isEmpty"><b>isEmpty</b></a> () const</li>
44<li class=fn>type * <a href="#toFirst"><b>toFirst</b></a> ()</li>
45<li class=fn><a href="#operator-type-*"><b>operator type *</b></a> () const</li>
46<li class=fn>type * <a href="#current"><b>current</b></a> () const</li>
47<li class=fn>long <a href="#currentKey"><b>currentKey</b></a> () const</li>
48<li class=fn>type * <a href="#operator()"><b>operator()</b></a> ()</li>
49<li class=fn>type * <a href="#operator++"><b>operator++</b></a> ()</li>
50<li class=fn>type * <a href="#operator+-eq"><b>operator+=</b></a> ( uint&nbsp;jump )</li>
51</ul>
52<hr><a name="details"></a><h2>Detailed Description</h2>
53
54
55The QIntDictIterator class provides an iterator for <a href="qintdict.html">QIntDict</a> collections.
56<p>
57
58<p> QIntDictIterator is implemented as a template class. Define a
59template instance QIntDictIterator&lt;X&gt; to create a dictionary
60iterator that operates on QIntDict&lt;X&gt; (dictionary of X*).
61<p> Example:
62<pre>
63 <a href="qintdict.html">QIntDict</a>&lt;QLineEdit&gt; fields;
64 for ( int i = 0; i &lt; 3; i++ )
65 fields.<a href="qintdict.html#insert">insert</a>( i, new <a href="qlineedit.html">QLineEdit</a>( this ) );
66
67 fields[0]-&gt;setText( "Homer" );
68 fields[1]-&gt;setText( "Simpson" );
69 fields[2]-&gt;setText( "45" );
70
71 QIntDictIterator&lt;QLineEdit&gt; it( fields );
72 for ( ; it.<a href="#current">current</a>(); ++it )
73 cout &lt;&lt; it.<a href="#currentKey">currentKey</a>() &lt;&lt; ": " &lt;&lt; it.<a href="#current">current</a>()-&gt;text() &lt;&lt; endl;
74
75 // Output (random order):
76 // 0: Homer
77 // 1: Simpson
78 // 2: 45
79 </pre>
80
81<p> Note that the traversal order is arbitrary; you are not guaranteed the
82order shown above.
83<p> Multiple iterators may independently traverse the same dictionary.
84A <a href="qintdict.html">QIntDict</a> knows about all the iterators that are operating on the
85dictionary. When an item is removed from the dictionary, QIntDict
86updates all iterators that refer the removed item to point to the
87next item in the traversal order.
88<p> <p>See also <a href="qintdict.html">QIntDict</a>, <a href="collection.html">Collection Classes</a>, and <a href="tools.html">Non-GUI Classes</a>.
89
90<hr><h2>Member Function Documentation</h2>
91<h3 class=fn><a name="QIntDictIterator"></a>QIntDictIterator::QIntDictIterator ( const&nbsp;<a href="qintdict.html">QIntDict</a>&lt;type&gt;&nbsp;&amp;&nbsp;dict )
92</h3>
93
94<p> Constructs an iterator for <em>dict</em>. The current iterator item is
95set to point to the 'first' item in the <em>dict</em>. The first item
96refers to the first item in the dictionary's arbitrary internal
97ordering.
98
99<h3 class=fn><a name="~QIntDictIterator"></a>QIntDictIterator::~QIntDictIterator ()
100</h3>
101
102<p> Destroys the iterator.
103
104<h3 class=fn>uint <a name="count"></a>QIntDictIterator::count () const
105</h3>
106
107<p> Returns the number of items in the dictionary this iterator
108operates over.
109<p> <p>See also <a href="#isEmpty">isEmpty</a>().
110
111<h3 class=fn>type * <a name="current"></a>QIntDictIterator::current () const
112</h3>
113
114<p> Returns a pointer to the current iterator item.
115
116<h3 class=fn>long <a name="currentKey"></a>QIntDictIterator::currentKey () const
117</h3>
118
119<p> Returns the key for the current iterator item.
120
121<h3 class=fn>bool <a name="isEmpty"></a>QIntDictIterator::isEmpty () const
122</h3>
123
124<p> Returns TRUE if the dictionary is empty; otherwise eturns FALSE.
125<p> <p>See also <a href="#count">count</a>().
126
127<h3 class=fn><a name="operator-type-*"></a>QIntDictIterator::operator type * () const
128</h3>
129
130<p> Cast operator. Returns a pointer to the current iterator item.
131Same as <a href="#current">current</a>().
132
133<h3 class=fn>type * <a name="operator()"></a>QIntDictIterator::operator() ()
134</h3>
135
136<p> Makes the succeeding item current and returns the original current
137item.
138<p> If the current iterator item was the last item in the dictionary
139or if it was 0, 0 is returned.
140
141<h3 class=fn>type * <a name="operator++"></a>QIntDictIterator::operator++ ()
142</h3>
143
144<p> Prefix ++ makes the succeeding item current and returns the new
145current item.
146<p> If the current iterator item was the last item in the dictionary
147or if it was 0, 0 is returned.
148
149<h3 class=fn>type * <a name="operator+-eq"></a>QIntDictIterator::operator+= ( uint&nbsp;jump )
150</h3>
151
152<p> Sets the current item to the item <em>jump</em> positions after the
153current item, and returns a pointer to that item.
154<p> If that item is beyond the last item or if the dictionary is
155empty, it sets the current item to 0 and returns 0.
156
157<h3 class=fn>type * <a name="toFirst"></a>QIntDictIterator::toFirst ()
158</h3>
159
160<p> Sets the current iterator item to point to the first item in the
161dictionary and returns a pointer to the item. The first item
162refers to the first item in the dictionary's arbitrary internal
163ordering. If the dictionary is empty it sets the current item to
1640 and returns 0.
165
166<!-- eof -->
167<hr><p>
168This file is part of the <a href="index.html">Qt toolkit</a>.
169Copyright &copy; 1995-2007
170<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
171<table width=100% cellspacing=0 border=0><tr>
172<td>Copyright &copy; 2007
173<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
174<td align=right><div align=right>Qt 3.3.8</div>
175</table></div></address></body>
176</html>
Note: See TracBrowser for help on using the repository browser.