From ce3dee765c858a0b573d468ef8fee6b838e576d1 Mon Sep 17 00:00:00 2001
From: Michael Brasser <michael.brasser@nokia.com>
Date: Fri, 3 Feb 2012 12:26:37 +1000
Subject: Add and use new animation backend.

The new backend improves performance, and allows us to create
multiple running animation jobs from a single Transition. It is
based off of the existing Qt animation framework.

Change-Id: Id1d0162f6e5c65bf31267f3f9f2042c354375d57
Reviewed-by: Yunqiao Yin <charles.yin@nokia.com>
---
 .../animations/qsequentialanimationgroupjob_p.h    | 108 +++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 src/declarative/animations/qsequentialanimationgroupjob_p.h

(limited to 'src/declarative/animations/qsequentialanimationgroupjob_p.h')

diff --git a/src/declarative/animations/qsequentialanimationgroupjob_p.h b/src/declarative/animations/qsequentialanimationgroupjob_p.h
new file mode 100644
index 0000000000..4c1fb2d55a
--- /dev/null
+++ b/src/declarative/animations/qsequentialanimationgroupjob_p.h
@@ -0,0 +1,108 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QSEQUENTIALANIMATIONGROUPJOB_P_H
+#define QSEQUENTIALANIMATIONGROUPJOB_P_H
+
+#include <private/qanimationgroupjob_p.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Declarative)
+
+class QPauseAnimationJob;
+class Q_DECLARATIVE_EXPORT QSequentialAnimationGroupJob : public QAnimationGroupJob
+{
+    Q_DISABLE_COPY(QSequentialAnimationGroupJob)
+public:
+    QSequentialAnimationGroupJob();
+    ~QSequentialAnimationGroupJob();
+
+    int duration() const;
+
+    QAbstractAnimationJob *currentAnimation() const { return m_currentAnimation; }
+
+protected:
+    void updateCurrentTime(int);
+    void updateState(QAbstractAnimationJob::State newState, QAbstractAnimationJob::State oldState);
+    void updateDirection(QAbstractAnimationJob::Direction direction);
+    void uncontrolledAnimationFinished(QAbstractAnimationJob *animation);
+
+private:
+    struct AnimationIndex
+    {
+        AnimationIndex() : afterCurrent(false), timeOffset(0), animation(0) {}
+        // AnimationIndex points to the animation at timeOffset, skipping 0 duration animations.
+        // Note that the index semantic is slightly different depending on the direction.
+        bool afterCurrent;  //whether animation is before or after m_currentAnimation   //TODO: make enum Before/After/Same
+        int timeOffset; // time offset when the animation at index starts.
+        QAbstractAnimationJob *animation; //points to the animation at timeOffset
+    };
+
+    int animationActualTotalDuration(QAbstractAnimationJob *anim) const;
+    AnimationIndex indexForCurrentTime() const;
+
+    void setCurrentAnimation(QAbstractAnimationJob *anim, bool intermediate = false);
+    void activateCurrentAnimation(bool intermediate = false);
+
+    void animationInserted(QAbstractAnimationJob *anim);
+    void animationRemoved(QAbstractAnimationJob *anim,QAbstractAnimationJob*,QAbstractAnimationJob*);
+
+    bool atEnd() const;
+
+    void restart();
+
+    // handle time changes
+    void rewindForwards(const AnimationIndex &newAnimationIndex);
+    void advanceForwards(const AnimationIndex &newAnimationIndex);
+
+    //state
+    QAbstractAnimationJob *m_currentAnimation;
+    int m_previousLoop;
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif //QSEQUENTIALANIMATIONGROUPJOB_P_H
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