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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QListViewItemIterator Class Reference</h1>
<p>The QListViewItemIterator class provides an iterator for collections of QListViewItems.
<a href="#details">More...</a>
<p><tt>#include <<a href="qlistview-h.html">qlistview.h</a>></tt>
<p><a href="qlistviewitemiterator-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li><div class=fn><a href="#QListViewItemIterator"><b>QListViewItemIterator</b></a> ()</div></li>
<li><div class=fn><a href="#QListViewItemIterator-2"><b>QListViewItemIterator</b></a> ( QListViewItem * item )</div></li>
<li><div class=fn><a href="#QListViewItemIterator-3"><b>QListViewItemIterator</b></a> ( const QListViewItemIterator & it )</div></li>
<li><div class=fn><a href="#QListViewItemIterator-4"><b>QListViewItemIterator</b></a> ( QListView * lv )</div></li>
<li><div class=fn>QListViewItemIterator & <a href="#operator-eq"><b>operator=</b></a> ( const QListViewItemIterator & it )</div></li>
<li><div class=fn><a href="#~QListViewItemIterator"><b>~QListViewItemIterator</b></a> ()</div></li>
<li><div class=fn>QListViewItemIterator & <a href="#operator++"><b>operator++</b></a> ()</div></li>
<li><div class=fn>const QListViewItemIterator <a href="#operator++-2"><b>operator++</b></a> ( int )</div></li>
<li><div class=fn>QListViewItemIterator & <a href="#operator+-eq"><b>operator+=</b></a> ( int j )</div></li>
<li><div class=fn>QListViewItemIterator & <a href="#operator--"><b>operator--</b></a> ()</div></li>
<li><div class=fn>const QListViewItemIterator <a href="#operator---2"><b>operator--</b></a> ( int )</div></li>
<li><div class=fn>QListViewItemIterator & <a href="#operator--eq"><b>operator-=</b></a> ( int j )</div></li>
<li><div class=fn>QListViewItem * <a href="#current"><b>current</b></a> () const</div></li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
<p> The QListViewItemIterator class provides an iterator for collections of QListViewItems.
<p> Construct an instance of a QListViewItemIterator, with either a
<a href="qlistview.html">QListView</a>* or a <a href="qlistviewitem.html">QListViewItem</a>* as argument, to operate on the tree
of QListViewItems.
<p> A QListViewItemIterator iterates over all items of a list view. This
means that it always makes the first child of the current item the new
current item. If there is no child, the next sibling becomes the new
current item; and if there is no next sibling, the next sibling of
the parent becomes current.
<p> The following example function gets a list of all the items that
have been selected by the user, storing pointers to the items in a
QPtrList:
<pre>
<a href="qptrlist.html">QPtrList</a><QListViewItem> * getSelectedItems( <a href="qlistview.html">QListView</a> *lv ) {
if ( !lv )
return 0;
// Create the list
<a href="qptrlist.html">QPtrList</a><QListViewItem> *lst = new <a href="qptrlist.html">QPtrList</a><QListViewItem>;
lst-><a href="qptrcollection.html#setAutoDelete">setAutoDelete</a>( FALSE );
// Create an iterator and give the list view as argument
QListViewItemIterator it( lv );
// iterate through all items of the list view
for ( ; it.<a href="#current">current</a>(); ++it ) {
if ( it.<a href="#current">current</a>()->isSelected() )
lst-><a href="qptrlist.html#append">append</a>( it.<a href="#current">current</a>() );
}
return lst;
}
</pre>
<p> A QListViewItemIterator provides a convenient and easy way to
traverse a hierarchical <a href="qlistview.html">QListView</a>.
<p> Multiple QListViewItemIterators can operate on the tree of
QListViewItems. A QListView knows about all iterators
operating on its QListViewItems. So when a <a href="qlistviewitem.html">QListViewItem</a> gets
removed all iterators that point to this item are updated and point
to the following item.
<p> <p>See also <a href="qlistview.html">QListView</a>, <a href="qlistviewitem.html">QListViewItem</a> and <a href="advanced.html">Advanced Widgets</a>.
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QListViewItemIterator"></a>QListViewItemIterator::QListViewItemIterator ()
</h3> Constructs an empty iterator.
<h3 class=fn><a name="QListViewItemIterator-2"></a>QListViewItemIterator::QListViewItemIterator ( <a href="qlistviewitem.html">QListViewItem</a> * item )
</h3> Constructs an iterator for the <a href="qlistview.html">QListView</a> of the <em>item</em>. The
current iterator item is set to point to the <em>item</em>.
<h3 class=fn><a name="QListViewItemIterator-3"></a>QListViewItemIterator::QListViewItemIterator ( const <a href="qlistviewitemiterator.html">QListViewItemIterator</a> & it )
</h3> Constructs an iterator for the same <a href="qlistview.html">QListView</a> as <em>it</em>. The
current iterator item is set to point on the current item of <em>it</em>.
<h3 class=fn><a name="QListViewItemIterator-4"></a>QListViewItemIterator::QListViewItemIterator ( <a href="qlistview.html">QListView</a> * lv )
</h3> Constructs an iterator for the <a href="qlistview.html">QListView</a> <em>lv</em>. The current
iterator item is set to point on the first child ( <a href="qlistviewitem.html">QListViewItem</a> )
of <em>lv</em>.
<h3 class=fn><a name="~QListViewItemIterator"></a>QListViewItemIterator::~QListViewItemIterator ()
</h3> Destroys the iterator.
<h3 class=fn><a href="qlistviewitem.html">QListViewItem</a> * <a name="current"></a>QListViewItemIterator::current () const
</h3> Returns a pointer to the current item of the iterator.
<p>Examples: <a href="addressbook-example.html#x1986">addressbook/centralwidget.cpp</a>, <a href="checklists-example.html#x1873">checklists/checklists.cpp</a>, <a href="dirview-example.html#x1687">dirview/dirview.cpp</a> and <a href="ftpclient-example.html#x1043">network/ftpclient/ftpview.cpp</a>.
<h3 class=fn><a href="qlistviewitemiterator.html">QListViewItemIterator</a> & <a name="operator++"></a>QListViewItemIterator::operator++ ()
</h3> Prefix ++ makes the next item in the <a href="qlistviewitem.html">QListViewItem</a> tree of the
<a href="qlistview.html">QListView</a> of the iterator the current item and returns it. If the
current item was the last item in the QListView or null, null is
returned.
<h3 class=fn>const <a href="qlistviewitemiterator.html">QListViewItemIterator</a> <a name="operator++-2"></a>QListViewItemIterator::operator++ ( int )
</h3> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Postfix ++ makes the next item in the <a href="qlistviewitem.html">QListViewItem</a> tree of the
<a href="qlistview.html">QListView</a> of the iterator the current item and returns the item
which was previously current.
<h3 class=fn><a href="qlistviewitemiterator.html">QListViewItemIterator</a> & <a name="operator+-eq"></a>QListViewItemIterator::operator+= ( int j )
</h3>
Sets the current item to the item <em>j</em> positions after the current
item in the <a href="qlistviewitem.html">QListViewItem</a> hierarchy. If this item is beyond the last
item, the current item is set to null.
<p> The new current item (or null, if the new current item is null) is returned.
<h3 class=fn><a href="qlistviewitemiterator.html">QListViewItemIterator</a> & <a name="operator--"></a>QListViewItemIterator::operator-- ()
</h3>
Prefix -- makes the previous item in the <a href="qlistviewitem.html">QListViewItem</a> tree of the
<a href="qlistview.html">QListView</a> of the iterator the current item and returns it. If the
current item was the last first in the QListView or null, null is
returned.
<h3 class=fn>const <a href="qlistviewitemiterator.html">QListViewItemIterator</a> <a name="operator---2"></a>QListViewItemIterator::operator-- ( int )
</h3> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Postfix -- makes the previous item in the <a href="qlistviewitem.html">QListViewItem</a> tree of
the <a href="qlistview.html">QListView</a> of the iterator the current item and returns the item.
<h3 class=fn><a href="qlistviewitemiterator.html">QListViewItemIterator</a> & <a name="operator--eq"></a>QListViewItemIterator::operator-= ( int j )
</h3> Sets the current item to the item <em>j</em> positions before the
current item in the <a href="qlistviewitem.html">QListViewItem</a> hierarchy. If this item is before
the first item, the current item is set to null. The new current
item (or null, if the new current item is null) is returned.
<h3 class=fn><a href="qlistviewitemiterator.html">QListViewItemIterator</a> & <a name="operator-eq"></a>QListViewItemIterator::operator= ( const <a href="qlistviewitemiterator.html">QListViewItemIterator</a> & it )
</h3> Assignment. Makes a copy of <em>it</em> and returns a reference to its
iterator.
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