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/****************************************************************************
**
** Copyright (C) 2012 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 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
|
