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+/****************************************************************************
+**
+** Implementation of TQFocusData class
+**
+** Created : 980622
+**
+** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA.
+**
+** This file is part of the kernel module of the TQt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free TQt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
+** included in the packaging of this file.  Licensees holding valid TQt
+** Commercial licenses may use this file in accordance with the TQt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#include "tqfocusdata.h"
+
+/*!
+    \class TQFocusData tqfocusdata.h
+    \brief The TQFocusData class maintains the list of widgets in the focus
+    chain.
+
+    \ingroup misc
+
+    This read-only list always tqcontains 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 home(), or moved to its
+    neighboring widgets using next() and prev(). You can also retrieve
+    the count() 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.
+
+    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.
+
+    When reimplementing TQWidget::focusNextPrevChild() to provide
+    special focus flow, you will usually call TQWidget::focusData() to
+    retrieve the focus data stored at the top-level widget. A
+    top-level widget's focus data tqcontains the focus list for its
+    hierarchy of widgets.
+
+    The cursor may change at any time.
+
+    This class is \e not thread-safe.
+
+    \sa TQWidget::focusNextPrevChild() TQWidget::setTabOrder()
+    TQWidget::setFocusPolicy()
+*/
+
+/*!
+    \fn TQWidget* TQFocusData::tqfocusWidget() const
+
+    Returns the widgets in the hierarchy that are in the focus chain.
+*/
+
+/*!
+    \fn int TQFocusData::count() const
+
+    Returns the number of widgets in the focus chain.
+*/
+
+/*!
+    Moves the cursor to the tqfocusWidget() and returns that widget. You
+    must call this before next() or prev() to iterate meaningfully.
+*/
+TQWidget* TQFocusData::home()
+{
+    tqfocusWidgets.tqfind(it.current());
+    return tqfocusWidgets.current();
+}
+
+/*!
+    Moves the cursor to the next widget in the focus chain. There is
+    \e always a next widget because the list is a loop.
+*/
+TQWidget* TQFocusData::next()
+{
+    TQWidget* r = tqfocusWidgets.next();
+    if ( !r )
+	r = tqfocusWidgets.first();
+    return r;
+}
+
+/*!
+    Moves the cursor to the previous widget in the focus chain. There
+    is \e always a previous widget because the list is a loop.
+*/
+TQWidget* TQFocusData::prev()
+{
+    TQWidget* r = tqfocusWidgets.prev();
+    if ( !r )
+	r = tqfocusWidgets.last();
+    return r;
+}
+
+/*!
+    Returns the last widget in the focus chain.
+    The cursor is not modified.
+*/
+TQWidget *TQFocusData::last() const
+{
+    return tqfocusWidgets.getLast();
+}
+
+/*!
+    Returns the first widget in the focus chain.
+    The cursor is not modified.
+*/
+TQWidget *TQFocusData::first() const
+{
+    return tqfocusWidgets.getFirst();
+}