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Diffstat (limited to 'src/particles/qquickparticlepainter_p.h')
-rw-r--r-- | src/particles/qquickparticlepainter_p.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/src/particles/qquickparticlepainter_p.h b/src/particles/qquickparticlepainter_p.h new file mode 100644 index 0000000000..1ae4625856 --- /dev/null +++ b/src/particles/qquickparticlepainter_p.h @@ -0,0 +1,137 @@ +/**************************************************************************** +** +** 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 PARTICLE_H +#define PARTICLE_H + +#include <QObject> +#include <QDebug> +#include <QPair> +#include "qquickparticlesystem_p.h" + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +class QQuickParticlePainter : public QQuickItem +{ + Q_OBJECT + Q_PROPERTY(QQuickParticleSystem* system READ system WRITE setSystem NOTIFY systemChanged) + Q_PROPERTY(QStringList groups READ groups WRITE setGroups NOTIFY groupsChanged) + +public: + explicit QQuickParticlePainter(QQuickItem *parent = 0); + //Data Interface to system + void load(QQuickParticleData*); + void reload(QQuickParticleData*); + void setCount(int c); + int count(); + void performPendingCommits();//Called from updatePaintNode + QQuickParticleSystem* system() const + { + return m_system; + } + + + QStringList groups() const + { + return m_groups; + } + + void itemChange(ItemChange, const ItemChangeData &); + +signals: + void countChanged(); + void systemChanged(QQuickParticleSystem* arg); + + void groupsChanged(QStringList arg); + +public slots: + void setSystem(QQuickParticleSystem* arg); + + void setGroups(QStringList arg) + { + if (m_groups != arg) { + m_groups = arg; + //Note: The system watches this as it has to recalc things when groups change. It will request a reset if necessary + emit groupsChanged(arg); + } + } + + void calcSystemOffset(bool resetPending = false); + +private slots: + virtual void sceneGraphInvalidated() {} + +protected: + /* Reset resets all your internal data structures. But anything attached to a particle should + be in attached data. So reset + reloads should have no visible effect. + ###Hunt down all cases where we do a complete reset for convenience and be more targeted + */ + virtual void reset(); + + virtual void componentComplete(); + virtual void initialize(int gIdx, int pIdx){//Called from main thread + Q_UNUSED(gIdx); + Q_UNUSED(pIdx); + } + virtual void commit(int gIdx, int pIdx){//Called in Render Thread + //###If you need to do something on size changed, check m_data size in this? Or we reset you every time? + Q_UNUSED(gIdx); + Q_UNUSED(pIdx); + } + + QQuickParticleSystem* m_system; + friend class QQuickParticleSystem; + int m_count; + bool m_pleaseReset;//Used by subclasses, but it's a nice optimization to know when stuff isn't going to matter. + QStringList m_groups; + QPointF m_systemOffset; + + QQuickCanvas *m_canvas; + +private: + QSet<QPair<int,int> > m_pendingCommits; +}; + +QT_END_NAMESPACE +QT_END_HEADER +#endif // PARTICLE_H |