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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Declarative 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 ITEMPARTICLE_H
+#define ITEMPARTICLE_H
+#include "qquickparticlepainter_p.h"
+#include <QPointer>
+#include <QSet>
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QQuickVisualDataModel;
+class QQuickItemParticleAttached;
+
+class QQuickItemParticle : public QQuickParticlePainter
+{
+ Q_OBJECT
+ Q_PROPERTY(bool fade READ fade WRITE setFade NOTIFY fadeChanged)
+ Q_PROPERTY(QDeclarativeComponent* delegate READ delegate WRITE setDelegate NOTIFY delegateChanged)
+public:
+ explicit QQuickItemParticle(QQuickItem *parent = 0);
+
+ bool fade() const { return m_fade; }
+
+ virtual QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *);
+
+ static QQuickItemParticleAttached *qmlAttachedProperties(QObject *object);
+ QDeclarativeComponent* delegate() const
+ {
+ return m_delegate;
+ }
+
+signals:
+ void fadeChanged();
+
+ void delegateChanged(QDeclarativeComponent* arg);
+
+public slots:
+ //TODO: Add a follow mode, where moving the delegate causes the logical particle to go with it?
+ void freeze(QQuickItem* item);
+ void unfreeze(QQuickItem* item);
+ void take(QQuickItem* item,bool prioritize=false);//take by modelparticle
+ void give(QQuickItem* item);//give from modelparticle
+
+ void setFade(bool arg){if (arg == m_fade) return; m_fade = arg; emit fadeChanged();}
+ void setDelegate(QDeclarativeComponent* arg)
+ {
+ if (m_delegate != arg) {
+ m_delegate = arg;
+ emit delegateChanged(arg);
+ }
+ }
+
+protected:
+ virtual void reset();
+ virtual void commit(int gIdx, int pIdx);
+ virtual void initialize(int gIdx, int pIdx);
+ void prepareNextFrame();
+private slots:
+ void tick();
+private:
+ QList<QQuickItem* > m_deletables;
+ QList< QQuickParticleData* > m_loadables;
+ bool m_fade;
+
+ QList<QQuickItem*> m_pendingItems;
+ QList<int> m_available;
+ QSet<QQuickItem*> m_stasis;
+ qreal m_lastT;
+ int m_activeCount;
+ QDeclarativeComponent* m_delegate;
+};
+
+class QQuickItemParticleAttached : public QObject
+{
+ Q_OBJECT
+ Q_PROPERTY(QQuickItemParticle* particle READ particle CONSTANT);
+public:
+ QQuickItemParticleAttached(QObject* parent)
+ : QObject(parent), m_mp(0)
+ {;}
+ QQuickItemParticle* particle() {return m_mp;}
+ void detach(){emit detached();}
+ void attach(){emit attached();}
+private:
+ QQuickItemParticle* m_mp;
+ friend class QQuickItemParticle;
+Q_SIGNALS:
+ void detached();
+ void attached();
+};
+
+QT_END_NAMESPACE
+
+QML_DECLARE_TYPEINFO(QQuickItemParticle, QML_HAS_ATTACHED_PROPERTIES)
+
+QT_END_HEADER
+#endif // ITEMPARTICLE_H