/****************************************************************************
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** This file is part of the QtQuick module of the Qt Toolkit.
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** accordance with the commercial license agreement provided with the
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****************************************************************************/

#ifndef MASKEXTRUDER_H
#define MASKEXTRUDER_H
#include "qquickparticleextruder_p.h"
#include <private/qquickpixmapcache_p.h>
#include <QUrl>
#include <QImage>

QT_BEGIN_NAMESPACE

class QQuickMaskExtruder : public QQuickParticleExtruder
{
    Q_OBJECT
    Q_PROPERTY(QUrl source READ source WRITE setSource NOTIFY sourceChanged)
public:
    explicit QQuickMaskExtruder(QObject *parent = 0);
    virtual QPointF extrude(const QRectF &);
    virtual bool contains(const QRectF &bounds, const QPointF &point);

    QUrl source() const
    {
        return m_source;
    }

Q_SIGNALS:

    void sourceChanged(QUrl arg);

public Q_SLOTS:
    void setSource(QUrl arg);

private Q_SLOTS:
    void startMaskLoading();
    void finishMaskLoading();

private:
    QUrl m_source;

    void ensureInitialized(const QRectF &r);
    int m_lastWidth;
    int m_lastHeight;
    QQuickPixmap m_pix;
    QImage m_img;
    QList<QPointF> m_mask;//TODO: More memory efficient datastructures
    //Perhaps just the mask for the largest bounds is stored, and interpolate up
};

QT_END_NAMESPACE

#endif // MASKEXTRUDER_H
