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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 contains 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 contains 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.find(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();
-}