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Diffstat (limited to 'src/declarative/particles/qsgemitter_p.h')
-rw-r--r-- | src/declarative/particles/qsgemitter_p.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/declarative/particles/qsgemitter_p.h b/src/declarative/particles/qsgemitter_p.h new file mode 100644 index 0000000000..3988c71cdf --- /dev/null +++ b/src/declarative/particles/qsgemitter_p.h @@ -0,0 +1,104 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 TRAILSEMITTER_H +#define TRAILSEMITTER_H + +#include <QtCore> +#include <QtGui> + +#include "qsgparticleemitter_p.h" + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) + + +class QSGGeometryNode; + +class QSGBasicEmitter : public QSGParticleEmitter +{ + Q_OBJECT + + Q_PROPERTY(qreal speedFromMovement READ speedFromMovement WRITE setSpeedFromMovement NOTIFY speedFromMovementChanged) + +public: + explicit QSGBasicEmitter(QSGItem* parent=0); + virtual ~QSGBasicEmitter(){} + virtual void emitWindow(int timeStamp); + + + qreal speedFromMovement() const { return m_speed_from_movement; } + void setSpeedFromMovement(qreal s); + + qreal renderOpacity() const { return m_render_opacity; } + +signals: + + void speedFromMovementChanged(); + +public slots: +public: + virtual void reset(); +protected: + +private: + + qreal m_speed_from_movement; + + // derived values... + int m_particle_count; + bool m_reset_last; + qreal m_last_timestamp; + qreal m_last_emission; + + QPointF m_last_emitter; + QPointF m_last_last_emitter; + QPointF m_last_last_last_emitter; + + qreal m_render_opacity; +}; + +QT_END_NAMESPACE +QT_END_HEADER +#endif // TRAILSEMITTER_H |