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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 CUSTOM_PARTICLE_H
#define CUSTOM_PARTICLE_H
#include "qsgparticlepainter_p.h"
#include <QtDeclarative/private/qsgshadereffectnode_p.h>
#include <QSignalMapper>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class QSGNode;
struct PlainVertices;
//Genealogy: Hybrid of UltraParticle and ShaderEffectItem
class QSGCustomParticle : public QSGParticlePainter
{
Q_OBJECT
Q_PROPERTY(QByteArray fragmentShader READ fragmentShader WRITE setFragmentShader NOTIFY fragmentShaderChanged)
Q_PROPERTY(QByteArray vertexShader READ vertexShader WRITE setVertexShader NOTIFY vertexShaderChanged)
public:
explicit QSGCustomParticle(QSGItem* parent=0);
QByteArray fragmentShader() const { return m_source.fragmentCode; }
void setFragmentShader(const QByteArray &code);
QByteArray vertexShader() const { return m_source.vertexCode; }
void setVertexShader(const QByteArray &code);
public Q_SLOTS:
void updateData();
void changeSource(int);
Q_SIGNALS:
void fragmentShaderChanged();
void vertexShaderChanged();
protected:
virtual void initialize(int idx);
virtual void reload(int idx);
QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *);
void prepareNextFrame();
void setSource(const QVariant &var, int index);
void disconnectPropertySignals();
void connectPropertySignals();
void reset();
void resize(int oldCount, int newCount);
void updateProperties();
void lookThroughShaderCode(const QByteArray &code);
virtual void componentComplete();
QSGShaderEffectNode *buildCustomNode();
void performPendingResize();
private:
void buildData();
bool m_pleaseReset;
bool m_dirtyData;
QSGShaderEffectProgram m_source;
struct SourceData
{
QSignalMapper *mapper;
QPointer<QSGItem> item;
QByteArray name;
};
QVector<SourceData> m_sources;
QSGShaderEffectMaterial m_material;
QSGShaderEffectNode* m_node;
qreal m_lastTime;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif //HEADER_GUARD
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