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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtOpenGL 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 QGRAPHICSSHADEREFFECT_P_H
#define QGRAPHICSSHADEREFFECT_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtGui/qgraphicseffect.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(OpenGL)

class QGLShaderProgram;
class QGLCustomShaderEffectStage;
class QGraphicsShaderEffectPrivate;

class Q_OPENGL_EXPORT QGraphicsShaderEffect : public QGraphicsEffect
{
    Q_OBJECT
public:
    QGraphicsShaderEffect(QObject *parent = 0);
    virtual ~QGraphicsShaderEffect();

    QByteArray pixelShaderFragment() const;
    void setPixelShaderFragment(const QByteArray& code);

protected:
    void draw(QPainter *painter, QGraphicsEffectSource *source);
    void setUniformsDirty();
    virtual void setUniforms(QGLShaderProgram *program);

private:
    Q_DECLARE_PRIVATE(QGraphicsShaderEffect)
    Q_DISABLE_COPY(QGraphicsShaderEffect)

    friend class QGLCustomShaderEffectStage;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QGRAPHICSSHADEREFFECT_P_H