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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"

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

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

#include <QtCore/qrect.h>
#include <QtCore/qpoint.h>
#include <QtGui/qcolor.h>

QT_BEGIN_NAMESPACE

class QGraphicsEffectSourcePrivate : public QObjectPrivate
{
    Q_DECLARE_PUBLIC(QGraphicsEffectSource)
public:
    QGraphicsEffectSourcePrivate() : QObjectPrivate() {}
    virtual ~QGraphicsEffectSourcePrivate() {}
    virtual void detach() = 0;
    virtual QRectF boundingRect(Qt::CoordinateSystem system) const = 0;
    virtual QRect deviceRect() const = 0;
    virtual const QGraphicsItem *graphicsItem() const = 0;
    virtual const QStyleOption *styleOption() const = 0;
    virtual void draw(QPainter *p) = 0;
    virtual void update() = 0;
    virtual bool isPixmap() const = 0;
    virtual QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset = 0) const = 0;
    friend class QGraphicsScenePrivate;
    friend class QGraphicsItem;
    friend class QGraphicsItemPrivate;
};

class Q_GUI_EXPORT QGraphicsEffectPrivate : public QObjectPrivate
{
    Q_DECLARE_PUBLIC(QGraphicsEffect)
public:
    QGraphicsEffectPrivate() : source(0), isEnabled(1) {}

    inline void setGraphicsEffectSource(QGraphicsEffectSource *newSource)
    {
        QGraphicsEffect::ChangeFlags flags;
        if (source) {
            flags |= QGraphicsEffect::SourceDetached;
            source->d_func()->detach();
            delete source;
        }
        source = newSource;
        if (newSource)
            flags |= QGraphicsEffect::SourceAttached;
        q_func()->sourceChanged(flags);
    }

    QGraphicsEffectSource *source;
    QRectF boundingRect;
    quint32 isEnabled : 1;
    quint32 padding : 31; // feel free to use
};

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