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/*
* Copyright (C) 2015-2018 Département de l'Instruction Publique (DIP-SEM)
*
* Copyright (C) 2013 Open Education Foundation
*
* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
* l'Education Numérique en Afrique (GIP ENA)
*
* This file is part of OpenBoard.
*
* OpenBoard is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License,
* with a specific linking exception for the OpenSSL project's
* "OpenSSL" library (or with modified versions of it that use the
* same license as the "OpenSSL" library).
*
* OpenBoard is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
*/
#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, bool importingFile = false);
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; }
void setDPI(int desiredDPI) { this->dpiForRendering = desiredDPI; }
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;
protected:
int dpiForRendering;
PDFRenderer();
};
#endif // PDFRENDERER_H