Animators - Render thread animation system

This introduces 6 new QML types for animating state in the
scene graph when the UI thread is blocked. The QObject property
being animated is updated after the animation completes.

It works also with the "windows" and "basic" render loops, but
offer litte benefit then compared to in the "threaded" case.

Change-Id: Ic19e47c898c0b8bd53e457db922b3c9c457c8147
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

1 files changed, 196 insertions, 0 deletions

diff --git a/src/quick/util/qquickanimator_p.h b/src/quick/util/qquickanimator_p.h
new file mode 100644
index 0000000000..e5916c624c
--- /dev/null
+++ b/src/quick/util/qquickanimator_p.h
@@ -0,0 +1,196 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtQuick module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQUICKANIMATOR_P_H
+#define QQUICKANIMATOR_P_H
+
+#include "qquickanimation_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QQuickItem;
+
+class QQuickAnimatorJob;
+class QQuickAnimatorPrivate;
+class Q_QUICK_PRIVATE_EXPORT QQuickAnimator : public QQuickAbstractAnimation
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QQuickAnimator)
+    Q_PROPERTY(QQuickItem *target READ targetItem WRITE setTargetItem NOTIFY targetItemChanged)
+    Q_PROPERTY(QEasingCurve easing READ easing WRITE setEasing NOTIFY easingChanged)
+    Q_PROPERTY(int duration READ duration WRITE setDuration NOTIFY durationChanged)
+    Q_PROPERTY(qreal to READ to WRITE setTo NOTIFY toChanged)
+    Q_PROPERTY(qreal from READ from WRITE setFrom NOTIFY fromChanged)
+
+public:
+    QQuickItem *targetItem() const;
+    void setTargetItem(QQuickItem *target);
+
+    int duration() const;
+    void setDuration(int duration);
+
+    QEasingCurve easing() const;
+    void setEasing(const QEasingCurve & easing);
+
+    qreal to() const;
+    void setTo(qreal to);
+
+    qreal from() const;
+    void setFrom(qreal from);
+
+protected:
+    ThreadingModel threadingModel() const { return RenderThread; }
+    virtual QQuickAnimatorJob *createJob() const = 0;
+    virtual QString propertyName() const = 0;
+    QAbstractAnimationJob *transition(QQuickStateActions &actions,
+                                      QQmlProperties &modified,
+                                      TransitionDirection,
+                                      QObject *);
+
+    QQuickAnimator(QQuickAnimatorPrivate &dd, QObject *parent = 0);
+    QQuickAnimator(QObject *parent = 0);
+
+Q_SIGNALS:
+    void targetItemChanged(QQuickItem *);
+    void durationChanged(int duration);
+    void easingChanged(const QEasingCurve &curve);
+    void toChanged(qreal to);
+    void fromChanged(qreal from);
+};
+
+class QQuickScaleAnimatorPrivate;
+class Q_QUICK_PRIVATE_EXPORT QQuickScaleAnimator : public QQuickAnimator
+{
+    Q_OBJECT
+public:
+    QQuickScaleAnimator(QObject *parent = 0);
+protected:
+    QQuickAnimatorJob *createJob() const;
+    QString propertyName() const { return QStringLiteral("scale"); }
+};
+
+class Q_QUICK_PRIVATE_EXPORT QQuickXAnimator : public QQuickAnimator
+{
+    Q_OBJECT
+public:
+    QQuickXAnimator(QObject *parent = 0);
+protected:
+    QQuickAnimatorJob *createJob() const;
+    QString propertyName() const{ return QStringLiteral("x"); }
+};
+
+class Q_QUICK_PRIVATE_EXPORT QQuickYAnimator : public QQuickAnimator
+{
+    Q_OBJECT
+public:
+    QQuickYAnimator(QObject *parent = 0);
+protected:
+    QQuickAnimatorJob *createJob() const;
+    QString propertyName() const { return QStringLiteral("y"); }
+};
+
+class Q_QUICK_PRIVATE_EXPORT QQuickOpacityAnimator : public QQuickAnimator
+{
+    Q_OBJECT
+public:
+    QQuickOpacityAnimator(QObject *parent = 0);
+protected:
+    QQuickAnimatorJob *createJob() const;
+    QString propertyName() const { return QStringLiteral("opacity"); }
+};
+
+class QQuickRotationAnimatorPrivate;
+class Q_QUICK_PRIVATE_EXPORT QQuickRotationAnimator : public QQuickAnimator
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QQuickRotationAnimator)
+    Q_PROPERTY(RotationDirection direction READ direction WRITE setDirection NOTIFY directionChanged)
+
+    Q_ENUMS(RotationDirection)
+
+public:
+    enum RotationDirection { Numerical, Shortest, Clockwise, Counterclockwise };
+
+    QQuickRotationAnimator(QObject *parent = 0);
+
+    void setDirection(RotationDirection dir);
+    RotationDirection direction() const;
+
+Q_SIGNALS:
+    void directionChanged(RotationDirection dir);
+
+protected:
+    QQuickAnimatorJob *createJob() const;
+    QString propertyName() const { return QStringLiteral("rotation"); }
+};
+
+class QQuickUniformAnimatorPrivate;
+class Q_QUICK_PRIVATE_EXPORT QQuickUniformAnimator : public QQuickAnimator
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QQuickUniformAnimator)
+    Q_PROPERTY(QString uniform READ uniform WRITE setUniform NOTIFY uniformChanged)
+
+public:
+    QQuickUniformAnimator(QObject *parent = 0);
+
+    QString uniform() const;
+    void setUniform(const QString &);
+
+Q_SIGNALS:
+    void uniformChanged(const QString &);
+
+protected:
+    QQuickAnimatorJob *createJob() const;
+    QString propertyName() const;
+};
+
+QT_END_NAMESPACE
+
+QML_DECLARE_TYPE(QQuickAnimator)
+QML_DECLARE_TYPE(QQuickXAnimator)
+QML_DECLARE_TYPE(QQuickYAnimator)
+QML_DECLARE_TYPE(QQuickScaleAnimator)
+QML_DECLARE_TYPE(QQuickRotationAnimator)
+QML_DECLARE_TYPE(QQuickOpacityAnimator)
+QML_DECLARE_TYPE(QQuickUniformAnimator)
+
+#endif // QQUICKANIMATOR_P_H