--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/animation/easing/animation.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,101 @@
+/****************************************************************************
+**
+** 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 QtCore 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef ANIMATION_H
+#define ANIMATION_H
+
+#include <QtGui>
+
+#include <QtCore/qpropertyanimation.h>
+
+class Animation : public QPropertyAnimation {
+public:
+    enum PathType {
+        LinearPath,
+        CirclePath,
+        NPathTypes
+    };
+    Animation(QObject *target, const QByteArray &prop)
+        : QPropertyAnimation(target, prop)
+    {
+        setPathType(LinearPath);
+    }
+
+    void setPathType(PathType pathType)
+    {
+        if (pathType >= NPathTypes)
+            qWarning("Unknown pathType %d", pathType);
+
+        m_pathType = pathType;
+        m_path = QPainterPath();
+    }
+
+    void updateCurrentTime(int currentTime)
+    {
+        if (m_pathType == CirclePath) {
+            if (m_path.isEmpty()) {
+                QPointF to = endValue().toPointF();
+                QPointF from = startValue().toPointF();
+                m_path.moveTo(from);
+                m_path.addEllipse(QRectF(from, to));
+            }
+            int dura = duration();
+            const qreal progress = ((dura == 0) ? 1 : ((((currentTime - 1) % dura) + 1) / qreal(dura)));
+
+            qreal easedProgress = easingCurve().valueForProgress(progress);
+            if (easedProgress > 1.0) {
+                easedProgress -= 1.0;
+            } else if (easedProgress < 0) {
+                easedProgress += 1.0;
+            }
+            QPointF pt = m_path.pointAtPercent(easedProgress);
+            updateCurrentValue(pt);
+            emit valueChanged(pt);
+        } else {
+            QPropertyAnimation::updateCurrentTime(currentTime);
+        }
+    }
+
+    QPainterPath m_path;
+    PathType m_pathType;
+};
+
+#endif // ANIMATION_H