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123 lines
3.9 KiB
123 lines
3.9 KiB
/*
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* Copyright (C) 2015-2018 Département de l'Instruction Publique (DIP-SEM)
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*
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* Copyright (C) 2013 Open Education Foundation
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*
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* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
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* l'Education Numérique en Afrique (GIP ENA)
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*
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* This file is part of OpenBoard.
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*
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* OpenBoard is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License,
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* with a specific linking exception for the OpenSSL project's
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* "OpenSSL" library (or with modified versions of it that use the
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* same license as the "OpenSSL" library).
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*
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* OpenBoard is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef XPDFRENDERER_H
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#define XPDFRENDERER_H
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#include <QImage>
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#include "PDFRenderer.h"
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#include <splash/SplashBitmap.h>
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#include "globals/UBGlobals.h"
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#ifdef USE_XPDF
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THIRD_PARTY_WARNINGS_DISABLE
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#include <xpdf/Object.h>
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#include <xpdf/GlobalParams.h>
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#include <xpdf/SplashOutputDev.h>
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#include <xpdf/PDFDoc.h>
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THIRD_PARTY_WARNINGS_ENABLE
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#else
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#include <poppler/Object.h>
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#include <poppler/GlobalParams.h>
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#include <poppler/SplashOutputDev.h>
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#include <poppler/PDFDoc.h>
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#endif
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class PDFDoc;
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class XPDFRenderer : public PDFRenderer
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{
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Q_OBJECT
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public:
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XPDFRenderer(const QString &filename, bool importingFile = false);
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virtual ~XPDFRenderer();
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bool isValid() const;
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virtual int pageCount() const;
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virtual QSizeF pageSizeF(int pageNumber) const;
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virtual int pageRotation(int pageNumber) const;
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virtual QString title() const;
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public slots:
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void render(QPainter *p, int pageNumber, const QRectF &bounds = QRectF());
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private:
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void init();
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struct PdfZoomCacheData {
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PdfZoomCacheData() : splashBitmap(nullptr), cachedPageNumber(-1), splash(nullptr), ratio(1.0) {};
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PdfZoomCacheData(double const a_ratio) : splashBitmap(nullptr), cachedPageNumber(-1), splash(nullptr), ratio(a_ratio) {};
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~PdfZoomCacheData() {};
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SplashBitmap* splashBitmap;
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QImage cachedImage;
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int cachedPageNumber;
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SplashOutputDev* splash;
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double const ratio;
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bool requireUpdateImage(int const pageNumber) const {
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return (pageNumber != cachedPageNumber) || (splash == nullptr);
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}
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void prepareNewSplash(int const pageNumber, SplashColor &paperColor)
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{
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if(splash != nullptr)
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{
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cachedImage = QImage();
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delete splash;
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}
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splash = new SplashOutputDev(splashModeRGB8, 1, false, paperColor);
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cachedPageNumber = pageNumber;
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}
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};
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QImage &createPDFImageCached(int pageNumber, PdfZoomCacheData &cacheData);
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QImage* createPDFImageHistorical(int pageNumber, qreal xscale, qreal yscale, const QRectF &bounds);
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// Used when 'ZoomBehavior == 1 or 2'.
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// =1 has only x3 zoom in cache (= loss if user zoom > 3.0).
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// =2, has 2.5, 5 and 10 (= no loss, but a bit slower).
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QVector<PdfZoomCacheData> m_pdfZoomCache;
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// Used when 'ZoomBehavior == 0' (no cache).
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SplashBitmap* mpSplashBitmapHistorical;
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// Used when 'ZoomBehavior == 0' (no cache).
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SplashOutputDev* mSplashHistorical;
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PDFDoc *mDocument;
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static QAtomicInt sInstancesCount;
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qreal mSliceX;
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qreal mSliceY;
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};
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#endif // XPDFRENDERER_H
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