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/****************************************************************************
**
** Copyright (C) 2010 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 QMLGRAPHICSPARTICLES_H
#define QMLGRAPHICSPARTICLES_H
#include "qmlgraphicsitem.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class QmlGraphicsParticle;
class QmlGraphicsParticles;
class Q_DECLARATIVE_EXPORT QmlGraphicsParticleMotion : public QObject
{
Q_OBJECT
public:
QmlGraphicsParticleMotion(QObject *parent=0);
virtual void advance(QmlGraphicsParticle &, int interval);
virtual void created(QmlGraphicsParticle &);
virtual void destroy(QmlGraphicsParticle &);
};
class Q_DECLARATIVE_EXPORT QmlGraphicsParticleMotionLinear : public QmlGraphicsParticleMotion
{
Q_OBJECT
public:
QmlGraphicsParticleMotionLinear(QObject *parent=0)
: QmlGraphicsParticleMotion(parent) {}
virtual void advance(QmlGraphicsParticle &, int interval);
};
class Q_DECLARATIVE_EXPORT QmlGraphicsParticleMotionGravity : public QmlGraphicsParticleMotion
{
Q_OBJECT
Q_PROPERTY(int xattractor READ xAttractor WRITE setXAttractor)
Q_PROPERTY(int yattractor READ yAttractor WRITE setYAttractor)
Q_PROPERTY(int acceleration READ acceleration WRITE setAcceleration)
public:
QmlGraphicsParticleMotionGravity(QObject *parent=0)
: QmlGraphicsParticleMotion(parent), _xAttr(0), _yAttr(0), _accel(0.00005) {}
int xAttractor() const { return _xAttr; }
void setXAttractor(int x) { _xAttr = x; }
int yAttractor() const { return _yAttr; }
void setYAttractor(int y) { _yAttr = y; }
int acceleration() const { return int(_accel * 1000000); }
void setAcceleration(int accel) { _accel = qreal(accel)/1000000.0; }
virtual void advance(QmlGraphicsParticle &, int interval);
private:
int _xAttr;
int _yAttr;
qreal _accel;
};
class Q_DECLARATIVE_EXPORT QmlGraphicsParticleMotionWander : public QmlGraphicsParticleMotion
{
Q_OBJECT
public:
QmlGraphicsParticleMotionWander()
: QmlGraphicsParticleMotion(), particles(0), _xvariance(0), _yvariance(0) {}
virtual void advance(QmlGraphicsParticle &, int interval);
virtual void created(QmlGraphicsParticle &);
virtual void destroy(QmlGraphicsParticle &);
struct Data {
qreal x_targetV;
qreal y_targetV;
qreal x_peak;
qreal y_peak;
qreal x_var;
qreal y_var;
};
Q_PROPERTY(int xvariance READ xVariance WRITE setXVariance)
int xVariance() const { return int(_xvariance * 1000); }
void setXVariance(int var) { _xvariance = var / 1000.0; }
Q_PROPERTY(int yvariance READ yVariance WRITE setYVariance)
int yVariance() const { return int(_yvariance * 1000); }
void setYVariance(int var) { _yvariance = var / 1000.0; }
Q_PROPERTY(int pace READ pace WRITE setPace)
int pace() const { return int(_pace * 1000); }
void setPace(int pace) { _pace = pace / 1000.0; }
private:
QmlGraphicsParticles *particles;
qreal _xvariance;
qreal _yvariance;
qreal _pace;
};
class QmlGraphicsParticlesPrivate;
class Q_DECLARATIVE_EXPORT QmlGraphicsParticles : public QmlGraphicsItem
{
Q_OBJECT
Q_PROPERTY(QUrl source READ source WRITE setSource NOTIFY sourceChanged)
Q_PROPERTY(int count READ count WRITE setCount NOTIFY countChanged)
Q_PROPERTY(int emissionRate READ emissionRate WRITE setEmissionRate NOTIFY emissionRateChanged)
Q_PROPERTY(qreal emissionVariance READ emissionVariance WRITE setEmissionVariance NOTIFY emissionVarianceChanged)
Q_PROPERTY(int lifeSpan READ lifeSpan WRITE setLifeSpan NOTIFY lifeSpanChanged)
Q_PROPERTY(int lifeSpanDeviation READ lifeSpanDeviation WRITE setLifeSpanDeviation NOTIFY lifeSpanDeviationChanged)
Q_PROPERTY(int fadeInDuration READ fadeInDuration WRITE setFadeInDuration NOTIFY fadeInDurationChanged)
Q_PROPERTY(int fadeOutDuration READ fadeOutDuration WRITE setFadeOutDuration NOTIFY fadeOutDurationChanged)
Q_PROPERTY(qreal angle READ angle WRITE setAngle NOTIFY angleChanged)
Q_PROPERTY(qreal angleDeviation READ angleDeviation WRITE setAngleDeviation NOTIFY angleDeviationChanged)
Q_PROPERTY(qreal velocity READ velocity WRITE setVelocity NOTIFY velocityChanged)
Q_PROPERTY(qreal velocityDeviation READ velocityDeviation WRITE setVelocityDeviation NOTIFY velocityDeviationChanged)
Q_PROPERTY(QmlGraphicsParticleMotion *motion READ motion WRITE setMotion)
Q_CLASSINFO("DefaultProperty", "motion")
public:
QmlGraphicsParticles(QmlGraphicsItem *parent=0);
~QmlGraphicsParticles();
QUrl source() const;
void setSource(const QUrl &);
int count() const;
void setCount(int cnt);
int emissionRate() const;
void setEmissionRate(int);
qreal emissionVariance() const;
void setEmissionVariance(qreal);
int lifeSpan() const;
void setLifeSpan(int);
int lifeSpanDeviation() const;
void setLifeSpanDeviation(int);
int fadeInDuration() const;
void setFadeInDuration(int);
int fadeOutDuration() const;
void setFadeOutDuration(int);
qreal angle() const;
void setAngle(qreal);
qreal angleDeviation() const;
void setAngleDeviation(qreal);
qreal velocity() const;
void setVelocity(qreal);
qreal velocityDeviation() const;
void setVelocityDeviation(qreal);
QmlGraphicsParticleMotion *motion() const;
void setMotion(QmlGraphicsParticleMotion *);
void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *);
public Q_SLOTS:
void burst(int count, int emissionRate=-1);
protected:
virtual void componentComplete();
Q_SIGNALS:
void sourceChanged();
void countChanged();
void emissionRateChanged();
void emissionVarianceChanged();
void lifeSpanChanged();
void lifeSpanDeviationChanged();
void fadeInDurationChanged();
void fadeOutDurationChanged();
void angleChanged();
void angleDeviationChanged();
void velocityChanged();
void velocityDeviationChanged();
void emittingChanged();
private Q_SLOTS:
void imageLoaded();
private:
Q_DISABLE_COPY(QmlGraphicsParticles)
Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr.data(), QmlGraphicsParticles)
};
QT_END_NAMESPACE
QML_DECLARE_TYPE(QmlGraphicsParticleMotion)
QML_DECLARE_TYPE(QmlGraphicsParticleMotionLinear)
QML_DECLARE_TYPE(QmlGraphicsParticleMotionGravity)
QML_DECLARE_TYPE(QmlGraphicsParticleMotionWander)
QML_DECLARE_TYPE(QmlGraphicsParticles)
QT_END_HEADER
#endif
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