/****************************************************************************
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** This file is part of the QtGui module of the Qt Toolkit.
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#ifndef QGRAPHICSEFFECT_P_H
#define QGRAPHICSEFFECT_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp.  This header
// file may change from version to version without notice, or even be removed.
//
// We mean it.
//

#include "qgraphicseffect.h"
#include <private/qobject_p.h>
#include <private/qpixmapfilter_p.h>

#if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW

QT_BEGIN_NAMESPACE

class QGraphicsEffectSource
{
public:
    QGraphicsEffectSource() {}
    virtual ~QGraphicsEffectSource() {}
    virtual void detach() = 0;
    virtual QRectF boundingRect() = 0;
    virtual void draw(QPainter *p) = 0;
    virtual bool drawIntoPixmap(QPixmap *, const QTransform & = QTransform()) = 0;
};

class QGraphicsEffectPrivate : public QObjectPrivate
{
    Q_DECLARE_PUBLIC(QGraphicsEffect)
public:
    QGraphicsEffectPrivate() : source(0) {}
    QGraphicsEffectSource *source;
    inline void setGraphicsEffectSource(QGraphicsEffectSource *newSource)
    {
        if (source) {
            source->detach();
            delete source;
        }
        source = newSource;
    }
};

class QGraphicsGrayscaleEffectPrivate : public QGraphicsEffectPrivate
{
    Q_DECLARE_PUBLIC(QGraphicsGrayscaleEffect)
public:
    QGraphicsGrayscaleEffectPrivate()
    {
        filter = new QPixmapColorizeFilter;
        filter->setColor(Qt::black);
    }
    ~QGraphicsGrayscaleEffectPrivate() { delete filter; }

    QPixmapColorizeFilter *filter;
};

class QGraphicsColorizeEffectPrivate : public QGraphicsEffectPrivate
{
    Q_DECLARE_PUBLIC(QGraphicsColorizeEffect)
public:
    QGraphicsColorizeEffectPrivate() { filter = new QPixmapColorizeFilter; }
    ~QGraphicsColorizeEffectPrivate() { delete filter; }

    QPixmapColorizeFilter *filter;
};

class QGraphicsPixelizeEffectPrivate : public QGraphicsEffectPrivate
{
    Q_DECLARE_PUBLIC(QGraphicsPixelizeEffect)
public:
    QGraphicsPixelizeEffectPrivate() : pixelSize(3) {}

    int pixelSize;
};

class QGraphicsBlurEffectPrivate : public QGraphicsEffectPrivate
{
    Q_DECLARE_PUBLIC(QGraphicsBlurEffect)
public:
    QGraphicsBlurEffectPrivate() : filter(new QPixmapBlurFilter), blurRadius(4) {}
    ~QGraphicsBlurEffectPrivate() { delete filter; }

    QPixmapBlurFilter *filter;
    int blurRadius;
};

class QGraphicsBloomEffectPrivate : public QGraphicsEffectPrivate
{
    Q_DECLARE_PUBLIC(QGraphicsBlurEffect)
public:
    QGraphicsBloomEffectPrivate() : blurRadius(6), opacity(0.7) {}

    int blurRadius;
    qreal opacity;
};

class QGraphicsFrameEffectPrivate : public QGraphicsEffectPrivate
{
    Q_DECLARE_PUBLIC(QGraphicsFrameEffect)
public:
    QGraphicsFrameEffectPrivate() : color(Qt::blue), width(5), alpha(0.6) {}

    QColor color;
    qreal width;
    qreal alpha;
};

class QGraphicsShadowEffectPrivate : public QGraphicsEffectPrivate
{
    Q_DECLARE_PUBLIC(QGraphicsShadowEffect)
public:
    QGraphicsShadowEffectPrivate() : offset(4,4), radius(8), alpha(0.7) {}

    QPointF offset;
    int radius;
    qreal alpha;
};

QT_END_NAMESPACE

#endif // QT_NO_GRAPHICSVIEW

#endif // QGRAPHICSEFFECT_P_H