--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/widgets/qwidgetanimator.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,122 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/qpropertyanimation.h>
+#include <QtGui/qwidget.h>
+#include <QtGui/private/qmainwindowlayout_p.h>
+
+#include "qwidgetanimator_p.h"
+
+QT_BEGIN_NAMESPACE
+
+QWidgetAnimator::QWidgetAnimator(QMainWindowLayout *layout) : m_mainWindowLayout(layout)
+{
+}
+
+void QWidgetAnimator::abort(QWidget *w)
+{
+#ifndef QT_NO_ANIMATION
+    AnimationMap::iterator it = m_animation_map.find(w);
+    if (it == m_animation_map.end())
+        return;
+    QPropertyAnimation *anim = *it;
+    m_animation_map.erase(it);
+    anim->stop();
+#ifndef QT_NO_MAINWINDOW
+    m_mainWindowLayout->animationFinished(w);
+#endif
+#else
+    Q_UNUSED(w); //there is no animation to abort
+#endif //QT_NO_ANIMATION
+}
+
+#ifndef QT_NO_ANIMATION
+void QWidgetAnimator::animationFinished()
+{
+    QPropertyAnimation *anim = qobject_cast<QPropertyAnimation*>(sender());
+    abort(static_cast<QWidget*>(anim->targetObject()));
+}
+#endif //QT_NO_ANIMATION
+
+void QWidgetAnimator::animate(QWidget *widget, const QRect &_final_geometry, bool animate)
+{
+    QRect r = widget->geometry();
+    if (r.right() < 0 || r.bottom() < 0)
+        r = QRect();
+
+    animate = animate && !r.isNull() && !_final_geometry.isNull();
+
+    // might make the wigdet go away by sending it to negative space
+    const QRect final_geometry = _final_geometry.isValid() || widget->isWindow() ? _final_geometry :
+        QRect(QPoint(-500 - widget->width(), -500 - widget->height()), widget->size());
+
+    if (r == final_geometry)
+        return; //the widget is already where it should be
+#ifndef QT_NO_ANIMATION
+    AnimationMap::const_iterator it = m_animation_map.constFind(widget);
+    if (it != m_animation_map.constEnd() && (*it)->endValue().toRect() == final_geometry)
+        return;
+
+    QPropertyAnimation *anim = new QPropertyAnimation(widget, "geometry", widget);
+    anim->setDuration(animate ? 200 : 0);
+    anim->setEasingCurve(QEasingCurve::InOutQuad);
+    anim->setEndValue(final_geometry);
+    m_animation_map[widget] = anim;
+    connect(anim, SIGNAL(finished()), SLOT(animationFinished()));
+    anim->start(QPropertyAnimation::DeleteWhenStopped);
+#else
+    //we do it in one shot
+    widget->setGeometry(final_geometry);
+    m_mainWindowLayout->animationFinished(widget);
+#endif //QT_NO_ANIMATION
+}
+
+bool QWidgetAnimator::animating() const
+{
+    return !m_animation_map.isEmpty();
+}
+
+bool QWidgetAnimator::animating(QWidget *widget) const
+{
+    return m_animation_map.contains(widget);
+}
+
+QT_END_NAMESPACE