src/declarative/util/qdeclarativesmoothedanimation_p_p.h
branchGCC_SURGE
changeset 31 5daf16870df6
parent 30 5dc02b23752f
child 33 3e2da88830cd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/declarative/util/qdeclarativesmoothedanimation_p_p.h	Thu Jul 22 16:41:55 2010 +0100
@@ -0,0 +1,134 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative 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 QDECLARATIVESMOOTHEDANIMATION_P_H
+#define QDECLARATIVESMOOTHEDANIMATION_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "private/qdeclarativesmoothedanimation_p.h"
+#include "private/qdeclarativeanimation_p.h"
+
+#include "private/qdeclarativeanimation_p_p.h"
+
+#include <qparallelanimationgroup.h>
+
+#include <private/qobject_p.h>
+#include <QTimer>
+
+QT_BEGIN_NAMESPACE
+
+class QSmoothedAnimation : public QAbstractAnimation
+{
+public:
+    QSmoothedAnimation(QObject *parent=0);
+
+    qreal to;
+    qreal velocity;
+    int userDuration;
+
+    int maximumEasingTime;
+    QDeclarativeSmoothedAnimation::ReversingMode reversingMode;
+
+    qreal initialVelocity;
+    qreal trackVelocity;
+
+    QDeclarativeProperty target;
+
+    int duration() const;
+    void restart();
+    void init();
+
+protected:
+    virtual void updateCurrentTime(int);
+    virtual void updateState(QAbstractAnimation::State, QAbstractAnimation::State);
+
+private:
+    qreal easeFollow(qreal);
+    qreal initialValue;
+
+    bool invert;
+
+    int finalDuration;
+
+    // Parameters for use in updateCurrentTime()
+    qreal a;  // Acceleration
+    qreal d;  // Deceleration
+    qreal tf; // Total time
+    qreal tp; // Time at which peak velocity occurs
+    qreal td; // Time at which decelleration begins
+    qreal vp; // Velocity at tp
+    qreal sp; // Displacement at tp
+    qreal sd; // Displacement at td
+    qreal vi; // "Normalized" initialvelocity
+    qreal s;  // Total s
+
+    int lastTime;
+
+    bool recalc();
+    void delayedStop();
+
+    QTimer delayedStopTimer;
+};
+
+class QDeclarativeSmoothedAnimationPrivate : public QDeclarativePropertyAnimationPrivate
+{
+    Q_DECLARE_PUBLIC(QDeclarativeSmoothedAnimation)
+public:
+    QDeclarativeSmoothedAnimationPrivate();
+
+    QParallelAnimationGroup *wrapperGroup;
+    QSmoothedAnimation *anim;
+    QHash<QDeclarativeProperty, QSmoothedAnimation*> activeAnimations;
+};
+
+QT_END_NAMESPACE
+
+#endif // QDECLARATIVESMOOTHEDANIMATION_P_H