Long live Qt 4.5!

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diff --git a/src/qt3support/widgets/q3button.cpp b/src/qt3support/widgets/q3button.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the Qt3Support module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "q3button.h"
+#include "qpainter.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class Q3Button
+    \brief The Q3Button class is a compatibility base class of button
+    widgets
+
+    \compat
+
+    \bold{In new code, use QAbstractButton.}
+
+    To subclass Q3Button, you must reimplement at least drawButton()
+    (to draw the button's outline) and drawButtonLabel() (to draw its
+    text or pixmap). It is generally advisable to reimplement
+    sizeHint() as well, and sometimes hitButton() (to determine
+    whether a button press is within the button).
+*/
+
+/*!
+    Constructs a standard button called \a name with parent \a parent,
+    using the widget flags \a f.
+*/
+
+Q3Button::Q3Button( QWidget *parent, const char *name, Qt::WindowFlags f )
+    : QAbstractButton( parent, name, f )
+{
+}
+
+/*!
+    Destroys the button.
+ */
+Q3Button::~Q3Button()
+{
+}
+
+/*!
+    \fn void Q3Button::paintEvent( QPaintEvent *event)
+
+    Handles paint events, received in \a event, for buttons. Small and
+    typically complex buttons are painted double-buffered to reduce
+    flicker. The actually drawing is done in the virtual functions
+    drawButton() and drawButtonLabel().
+
+    \sa drawButton(), drawButtonLabel()
+*/
+void Q3Button::paintEvent( QPaintEvent *)
+{
+    QPainter p(this);
+    drawButton( &p );
+}
+
+/*!
+    \fn void Q3Button::drawButton( QPainter *painter)
+
+    Draws the button on the given \a painter. The default
+    implementation does nothing.
+
+    This virtual function is reimplemented by subclasses to draw real
+    buttons. At some point, these reimplementations should call
+    drawButtonLabel().
+
+    \sa drawButtonLabel(), paintEvent()
+*/
+void Q3Button::drawButton( QPainter * )
+{
+}
+
+/*!
+    \fn void Q3Button::drawButtonLabel( QPainter *painter )
+
+    Draws the button text or pixmap on the given \a painter.
+
+    This virtual function is reimplemented by subclasses to draw real
+    buttons. It is invoked by drawButton().
+
+    \sa drawButton(), paintEvent()
+*/
+
+void Q3Button::drawButtonLabel( QPainter * )
+{
+}
+
+QT_END_NAMESPACE