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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the QtQuick 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 ATTRACTORAFFECTOR_H
+#define ATTRACTORAFFECTOR_H
+#include "qquickparticleaffector_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QQuickAttractorAffector : public QQuickParticleAffector
+{
+ Q_OBJECT
+ Q_PROPERTY(qreal strength READ strength WRITE setStrength NOTIFY strengthChanged)
+ Q_PROPERTY(qreal pointX READ pointX WRITE setPointX NOTIFY pointXChanged)
+ Q_PROPERTY(qreal pointY READ pointY WRITE setPointY NOTIFY pointYChanged)
+ Q_PROPERTY(AffectableParameters affectedParameter READ affectedParameter WRITE setAffectedParameter NOTIFY affectedParameterChanged)
+ Q_PROPERTY(Proportion proportionalToDistance READ proportionalToDistance WRITE setProportionalToDistance NOTIFY proportionalToDistanceChanged)
+ Q_ENUMS(AffectableParameters)
+ Q_ENUMS(Proportion)
+
+public:
+ enum Proportion{
+ Constant,
+ Linear,
+ Quadratic,
+ InverseLinear,
+ InverseQuadratic
+ };
+
+ enum AffectableParameters {
+ Position,
+ Velocity,
+ Acceleration
+ };
+
+ explicit QQuickAttractorAffector(QQuickItem *parent = 0);
+
+ qreal strength() const
+ {
+ return m_strength;
+ }
+
+ qreal pointX() const
+ {
+ return m_x;
+ }
+
+ qreal pointY() const
+ {
+ return m_y;
+ }
+
+ AffectableParameters affectedParameter() const
+ {
+ return m_physics;
+ }
+
+ Proportion proportionalToDistance() const
+ {
+ return m_proportionalToDistance;
+ }
+
+signals:
+
+ void strengthChanged(qreal arg);
+
+ void pointXChanged(qreal arg);
+
+ void pointYChanged(qreal arg);
+
+ void affectedParameterChanged(AffectableParameters arg);
+
+ void proportionalToDistanceChanged(Proportion arg);
+
+public slots:
+void setStrength(qreal arg)
+{
+ if (m_strength != arg) {
+ m_strength = arg;
+ emit strengthChanged(arg);
+ }
+}
+
+void setPointX(qreal arg)
+{
+ if (m_x != arg) {
+ m_x = arg;
+ emit pointXChanged(arg);
+ }
+}
+
+void setPointY(qreal arg)
+{
+ if (m_y != arg) {
+ m_y = arg;
+ emit pointYChanged(arg);
+ }
+}
+void setAffectedParameter(AffectableParameters arg)
+{
+ if (m_physics != arg) {
+ m_physics = arg;
+ emit affectedParameterChanged(arg);
+ }
+}
+
+void setProportionalToDistance(Proportion arg)
+{
+ if (m_proportionalToDistance != arg) {
+ m_proportionalToDistance = arg;
+ emit proportionalToDistanceChanged(arg);
+ }
+}
+
+protected:
+ virtual bool affectParticle(QQuickParticleData *d, qreal dt);
+private:
+qreal m_strength;
+qreal m_x;
+qreal m_y;
+AffectableParameters m_physics;
+Proportion m_proportionalToDistance;
+};
+
+QT_END_NAMESPACE
+QT_END_HEADER
+#endif // ATTRACTORAFFECTOR_H