#ifndef PDFRENDERER_H
#define PDFRENDERER_H

#include <QObject>
#include <QSizeF>
#include <QRect>
#include <QByteArray>
#include <QUuid>
#include <QMap>
#include <QPointer>

class QPainter;

class PDFRenderer : public QObject
{
    Q_OBJECT

    public:
        static PDFRenderer* rendererForUuid(const QUuid &uuid, const QString &filename);
        virtual ~PDFRenderer();

        virtual bool isValid() const = 0;

        virtual int pageCount() const = 0;

        virtual QSizeF pageSizeF(int pageNumber) const = 0;

        virtual int pageRotation(int pageNumber) const = 0;

        virtual QString title() const = 0;

        void attach();
        void detach();

        QUuid fileUuid() const { return mFileUuid; }
        QByteArray fileData() const { return mFileData; }

    public slots:
        virtual void render(QPainter *p, int pageNumber, const QRectF &bounds = QRectF()) = 0;

    private:
        QAtomicInt mRefCount;
        QByteArray mFileData;
        QUuid mFileUuid;

        void setRefCount(const QAtomicInt &refCount);
        void setFileData(const QByteArray &fileData);
        void setFileUuid(const QUuid &fileUuid);

        static QMap< QUuid, QPointer<PDFRenderer> > sRenderers;
};

#endif // PDFRENDERER_H