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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 QML Shaders plugin 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 SHADEREFFECT_H
#define SHADEREFFECT_H
#include <QGraphicsEffect>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class ShaderEffectSource;
class ShaderEffect : public QGraphicsEffect
{
Q_OBJECT
public:
ShaderEffect(QObject *parent = 0);
~ShaderEffect();
void addRenderTarget(ShaderEffectSource *target);
void removeRenderTarget(ShaderEffectSource *target);
protected:
virtual void draw (QPainter *painter);
virtual void sourceChanged (ChangeFlags flags);
private:
void prepareBufferedDraw(QPainter *painter);
void updateRenderTargets();
bool hideOriginal() const;
public:
QVector<ShaderEffectSource*> m_renderTargets;
bool m_changed : 1;
};
QT_END_HEADER
QT_END_NAMESPACE
#endif // SHADEREFFECT_H
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