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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit885735d011472bcfbb96e688d9e64553d7fe9d4b (patch)
tree734963625eba643bf11bc4870a4c407809a6400a /src/declarative/util/qdeclarativesmoothedanimation_p_p.h
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+/****************************************************************************
+**
+** Copyright (C) 2011 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 Q_AUTOTEST_EXPORT 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();
+ void updateRunningAnimations();
+
+ QParallelAnimationGroup *wrapperGroup;
+ QSmoothedAnimation *anim;
+ QHash<QDeclarativeProperty, QSmoothedAnimation*> activeAnimations;
+};
+
+QT_END_NAMESPACE
+
+#endif // QDECLARATIVESMOOTHEDANIMATION_P_H