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diff --git a/doc/html/qlistviewitemiterator.html b/doc/html/qlistviewitemiterator.html new file mode 100644 index 000000000..33c5f7427 --- /dev/null +++ b/doc/html/qlistviewitemiterator.html @@ -0,0 +1,226 @@ +<!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/widgets/qlistview.cpp:7335 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>TQListViewItemIterator 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>TQListViewItemIterator Class Reference</h1> + +<p>The TQListViewItemIterator class provides an iterator for collections of TQListViewItems. +<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 class=fn>enum <a href="#IteratorFlag-enum"><b>IteratorFlag</b></a> { Visible = 0x00000001, Invisible = 0x00000002, Selected = 0x00000004, Unselected = 0x00000008, Selectable = 0x00000010, NotSelectable = 0x00000020, DragEnabled = 0x00000040, DragDisabled = 0x00000080, DropEnabled = 0x00000100, DropDisabled = 0x00000200, Expandable = 0x00000400, NotExpandable = 0x00000800, Checked = 0x00001000, NotChecked = 0x00002000 }</li> +<li class=fn><a href="#TQListViewItemIterator"><b>TQListViewItemIterator</b></a> ()</li> +<li class=fn><a href="#TQListViewItemIterator-2"><b>TQListViewItemIterator</b></a> ( TQListViewItem * item )</li> +<li class=fn><a href="#TQListViewItemIterator-3"><b>TQListViewItemIterator</b></a> ( TQListViewItem * item, int iteratorFlags )</li> +<li class=fn><a href="#TQListViewItemIterator-4"><b>TQListViewItemIterator</b></a> ( const TQListViewItemIterator & it )</li> +<li class=fn><a href="#TQListViewItemIterator-5"><b>TQListViewItemIterator</b></a> ( TQListView * lv )</li> +<li class=fn><a href="#TQListViewItemIterator-6"><b>TQListViewItemIterator</b></a> ( TQListView * lv, int iteratorFlags )</li> +<li class=fn>TQListViewItemIterator & <a href="#operator-eq"><b>operator=</b></a> ( const TQListViewItemIterator & it )</li> +<li class=fn><a href="#~TQListViewItemIterator"><b>~TQListViewItemIterator</b></a> ()</li> +<li class=fn>TQListViewItemIterator & <a href="#operator++"><b>operator++</b></a> ()</li> +<li class=fn>const TQListViewItemIterator <a href="#operator++-2"><b>operator++</b></a> ( int )</li> +<li class=fn>TQListViewItemIterator & <a href="#operator+-eq"><b>operator+=</b></a> ( int j )</li> +<li class=fn>TQListViewItemIterator & <a href="#operator--"><b>operator--</b></a> ()</li> +<li class=fn>const TQListViewItemIterator <a href="#operator---2"><b>operator--</b></a> ( int )</li> +<li class=fn>TQListViewItemIterator & <a href="#operator--eq"><b>operator-=</b></a> ( int j )</li> +<li class=fn>TQListViewItem * <a href="#operator*"><b>operator*</b></a> ()</li> +<li class=fn>TQListViewItem * <a href="#current"><b>current</b></a> () const</li> +</ul> +<hr><a name="details"></a><h2>Detailed Description</h2> + + +The TQListViewItemIterator class provides an iterator for collections of TQListViewItems. +<p> +<p> Construct an instance of a TQListViewItemIterator, with either a +<a href="qlistview.html">TQListView</a>* or a <a href="qlistviewitem.html">TQListViewItem</a>* as argument, to operate on the tree +of TQListViewItems, starting from the argument. +<p> A TQListViewItemIterator iterates over all the items from its +starting point. 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 creates a list of all the items that have +been selected by the user, storing pointers to the items in a +TQPtrList: +<pre> + <a href="qptrlist.html">TQPtrList</a><TQListViewItem> lst; + TQListViewItemIterator it( myListView ); + while ( it.<a href="#current">current</a>() ) { + if ( it.<a href="#current">current</a>()->isSelected() ) + lst.<a href="qptrlist.html#append">append</a>( it.<a href="#current">current</a>() ); + ++it; + } + </pre> + +<p> An alternative approach is to use an <a href="#IteratorFlag-enum">IteratorFlag</a>: +<pre> + <a href="qptrlist.html">TQPtrList</a><TQListViewItem> lst; + TQListViewItemIterator it( myListView, TQListViewItemIterator::<a href="#IteratorFlag-enum">Selected</a> ); + while ( it.<a href="#current">current</a>() ) { + lst.<a href="qptrlist.html#append">append</a>( it.<a href="#current">current</a>() ); + ++it; + } + </pre> + +<p> A TQListViewItemIterator provides a convenient and easy way to +traverse a hierarchical <a href="qlistview.html">TQListView</a>. +<p> Multiple TQListViewItemIterators can operate on the tree of +TQListViewItems. A TQListView knows about all iterators operating on +its TQListViewItems. So when a <a href="qlistviewitem.html">TQListViewItem</a> gets removed all +iterators that point to this item are updated and point to the +following item if possible, otherwise to a valid item before the +current one or to 0. Note however that deleting the parent item of +an item that an iterator points to is not safe. +<p> <p>See also <a href="qlistview.html">TQListView</a>, <a href="qlistviewitem.html">TQListViewItem</a>, and <a href="advanced.html">Advanced Widgets</a>. + +<hr><h2>Member Type Documentation</h2> +<h3 class=fn><a name="IteratorFlag-enum"></a>TQListViewItemIterator::IteratorFlag</h3> + +<p> These flags can be passed to a TQListViewItemIterator constructor +(OR-ed together if more than one is used), so that the iterator +will only iterate over items that match the given flags. +<ul> +<li><tt>TQListViewItemIterator::Visible</tt> +<li><tt>TQListViewItemIterator::Invisible</tt> +<li><tt>TQListViewItemIterator::Selected</tt> +<li><tt>TQListViewItemIterator::Unselected</tt> +<li><tt>TQListViewItemIterator::Selectable</tt> +<li><tt>TQListViewItemIterator::NotSelectable</tt> +<li><tt>TQListViewItemIterator::DragEnabled</tt> +<li><tt>TQListViewItemIterator::DragDisabled</tt> +<li><tt>TQListViewItemIterator::DropEnabled</tt> +<li><tt>TQListViewItemIterator::DropDisabled</tt> +<li><tt>TQListViewItemIterator::Expandable</tt> +<li><tt>TQListViewItemIterator::NotExpandable</tt> +<li><tt>TQListViewItemIterator::Checked</tt> +<li><tt>TQListViewItemIterator::NotChecked</tt> +</ul> +<hr><h2>Member Function Documentation</h2> +<h3 class=fn><a name="TQListViewItemIterator"></a>TQListViewItemIterator::TQListViewItemIterator () +</h3> +Constructs an empty iterator. + +<h3 class=fn><a name="TQListViewItemIterator-2"></a>TQListViewItemIterator::TQListViewItemIterator ( <a href="qlistviewitem.html">TQListViewItem</a> * item ) +</h3> +Constructs an iterator for the <a href="qlistview.html">TQListView</a> that contains the <em>item</em>. The current iterator item is set to point to the <em>item</em>. + +<h3 class=fn><a name="TQListViewItemIterator-3"></a>TQListViewItemIterator::TQListViewItemIterator ( <a href="qlistviewitem.html">TQListViewItem</a> * item, int iteratorFlags ) +</h3> +Constructs an iterator for the <a href="qlistview.html">TQListView</a> that contains the <em>item</em> +using the flags <em>iteratorFlags</em>. The current iterator item is set +to point to <em>item</em> or the next matching item if <em>item</em> doesn't +match the flags. +<p> <p>See also <a href="#IteratorFlag-enum">TQListViewItemIterator::IteratorFlag</a>. + +<h3 class=fn><a name="TQListViewItemIterator-4"></a>TQListViewItemIterator::TQListViewItemIterator ( const <a href="qlistviewitemiterator.html">TQListViewItemIterator</a> & it ) +</h3> +Constructs an iterator for the same <a href="qlistview.html">TQListView</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="TQListViewItemIterator-5"></a>TQListViewItemIterator::TQListViewItemIterator ( <a href="qlistview.html">TQListView</a> * lv ) +</h3> +Constructs an iterator for the <a href="qlistview.html">TQListView</a> <em>lv</em>. The current +iterator item is set to point on the first child (<a href="qlistviewitem.html">TQListViewItem</a>) +of <em>lv</em>. + +<h3 class=fn><a name="TQListViewItemIterator-6"></a>TQListViewItemIterator::TQListViewItemIterator ( <a href="qlistview.html">TQListView</a> * lv, int iteratorFlags ) +</h3> +Constructs an iterator for the <a href="qlistview.html">TQListView</a> <em>lv</em> with the flags <em>iteratorFlags</em>. The current iterator item is set to point on the +first child (<a href="qlistviewitem.html">TQListViewItem</a>) of <em>lv</em> that matches the flags. +<p> <p>See also <a href="#IteratorFlag-enum">TQListViewItemIterator::IteratorFlag</a>. + +<h3 class=fn><a name="~TQListViewItemIterator"></a>TQListViewItemIterator::~TQListViewItemIterator () +</h3> +Destroys the iterator. + +<h3 class=fn><a href="qlistviewitem.html">TQListViewItem</a> * <a name="current"></a>TQListViewItemIterator::current () const +</h3> +Returns iterator's current item. + +<p>Examples: <a href="addressbook-example.html#x597">addressbook/centralwidget.cpp</a>, <a href="checklists-example.html#x432">checklists/checklists.cpp</a>, and <a href="dirview-example.html#x1694">dirview/dirview.cpp</a>. +<h3 class=fn><a href="qlistviewitem.html">TQListViewItem</a> * <a name="operator*"></a>TQListViewItemIterator::operator* () +</h3> +Dereference operator. Returns a reference to the current item. The +same as <a href="#current">current</a>(). + +<h3 class=fn><a href="qlistviewitemiterator.html">TQListViewItemIterator</a> & <a name="operator++"></a>TQListViewItemIterator::operator++ () +</h3> +Prefix ++. Makes the next item the new current item and returns +it. Returns 0 if the current item is the last item or the +<a href="qlistview.html">TQListView</a> is 0. + +<h3 class=fn>const <a href="qlistviewitemiterator.html">TQListViewItemIterator</a> <a name="operator++-2"></a>TQListViewItemIterator::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 the new current item and returns +the item that <em>was</em> the current item. + +<h3 class=fn><a href="qlistviewitemiterator.html">TQListViewItemIterator</a> & <a name="operator+-eq"></a>TQListViewItemIterator::operator+= ( int j ) +</h3> +Sets the current item to the item <em>j</em> positions after the current +item. If that item is beyond the last item, the current item is +set to 0. Returns the current item. + +<h3 class=fn><a href="qlistviewitemiterator.html">TQListViewItemIterator</a> & <a name="operator--"></a>TQListViewItemIterator::operator-- () +</h3> +Prefix --. Makes the previous item the new current item and +returns it. Returns 0 if the current item is the first item or the +<a href="qlistview.html">TQListView</a> is 0. + +<h3 class=fn>const <a href="qlistviewitemiterator.html">TQListViewItemIterator</a> <a name="operator---2"></a>TQListViewItemIterator::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 the new current item and +returns the item that <em>was</em> the current item. + +<h3 class=fn><a href="qlistviewitemiterator.html">TQListViewItemIterator</a> & <a name="operator--eq"></a>TQListViewItemIterator::operator-= ( int j ) +</h3> +Sets the current item to the item <em>j</em> positions before the +current item. If that item is before the first item, the current +item is set to 0. Returns the current item. + +<h3 class=fn><a href="qlistviewitemiterator.html">TQListViewItemIterator</a> & <a name="operator-eq"></a>TQListViewItemIterator::operator= ( const <a href="qlistviewitemiterator.html">TQListViewItemIterator</a> & it ) +</h3> +Assignment. Makes a copy of <em>it</em> and returns a reference to its +iterator. + +<!-- 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>. 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