mirror of
https://invent.kde.org/graphics/okular
synced 2024-10-02 22:23:43 +00:00
167 lines
6.5 KiB
C++
167 lines
6.5 KiB
C++
/*
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SPDX-FileCopyrightText: 2004-2008 Albert Astals Cid <aacid@kde.org>
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SPDX-FileCopyrightText: 2004 Enrico Ros <eros.kde@email.it>
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Work sponsored by the LiMux project of the city of Munich:
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SPDX-FileCopyrightText: 2017 Klarälvdalens Datakonsult AB a KDAB Group company <info@kdab.com>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef _OKULAR_GENERATOR_PDF_H_
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#define _OKULAR_GENERATOR_PDF_H_
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//#include "synctex/synctex_parser.h"
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#include <poppler-qt5.h>
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#include <poppler-version.h>
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#define POPPLER_VERSION_MACRO ((POPPLER_VERSION_MAJOR << 16) | (POPPLER_VERSION_MINOR << 8) | (POPPLER_VERSION_MICRO))
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#include <QBitArray>
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#include <QPointer>
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#include <core/annotations.h>
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#include <core/document.h>
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#include <core/generator.h>
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#include <core/printoptionswidget.h>
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#include <interfaces/configinterface.h>
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#include <interfaces/printinterface.h>
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#include <interfaces/saveinterface.h>
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#include <unordered_map>
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class PDFOptionsPage;
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class PopplerAnnotationProxy;
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/**
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* @short A generator that builds contents from a PDF document.
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*
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* All Generator features are supported and implemented by this one.
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* Internally this holds a reference to xpdf's core objects and provides
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* contents generation using the PDFDoc object and a couple of OutputDevices
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* called Okular::OutputDev and Okular::TextDev (both defined in gp_outputdev.h).
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*
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* For generating page contents we tell PDFDoc to render a page and grab
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* contents from out OutputDevs when rendering finishes.
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*
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*/
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class PDFGenerator : public Okular::Generator, public Okular::ConfigInterface, public Okular::PrintInterface, public Okular::SaveInterface
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{
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Q_OBJECT
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Q_INTERFACES(Okular::Generator)
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Q_INTERFACES(Okular::ConfigInterface)
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Q_INTERFACES(Okular::PrintInterface)
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Q_INTERFACES(Okular::SaveInterface)
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public:
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PDFGenerator(QObject *parent, const QVariantList &args);
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~PDFGenerator() override;
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// [INHERITED] load a document and fill up the pagesVector
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Okular::Document::OpenResult loadDocumentWithPassword(const QString &filePath, QVector<Okular::Page *> &pagesVector, const QString &password) override;
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Okular::Document::OpenResult loadDocumentFromDataWithPassword(const QByteArray &fileData, QVector<Okular::Page *> &pagesVector, const QString &password) override;
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void loadPages(QVector<Okular::Page *> &pagesVector, int rotation = -1, bool clear = false);
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// [INHERITED] document information
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Okular::DocumentInfo generateDocumentInfo(const QSet<Okular::DocumentInfo::Key> &keys) const override;
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const Okular::DocumentSynopsis *generateDocumentSynopsis() override;
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Okular::FontInfo::List fontsForPage(int page) override;
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const QList<Okular::EmbeddedFile *> *embeddedFiles() const override;
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PageSizeMetric pagesSizeMetric() const override
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{
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return Pixels;
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}
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QAbstractItemModel *layersModel() const override;
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void opaqueAction(const Okular::BackendOpaqueAction *action) override;
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void freeOpaqueActionContents(const Okular::BackendOpaqueAction &action) override;
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// [INHERITED] document information
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bool isAllowed(Okular::Permission permission) const override;
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// [INHERITED] perform actions on document / pages
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QImage image(Okular::PixmapRequest *request) override;
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// [INHERITED] print page using an already configured kprinter
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Okular::Document::PrintError print(QPrinter &printer) override;
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// [INHERITED] reply to some metadata requests
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QVariant metaData(const QString &key, const QVariant &option) const override;
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// [INHERITED] reparse configuration
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bool reparseConfig() override;
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void addPages(KConfigDialog *) override;
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// [INHERITED] text exporting
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Okular::ExportFormat::List exportFormats() const override;
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bool exportTo(const QString &fileName, const Okular::ExportFormat &format) override;
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// [INHERITED] print interface
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Okular::PrintOptionsWidget *printConfigurationWidget() const override;
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// [INHERITED] save interface
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bool supportsOption(SaveOption) const override;
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bool save(const QString &fileName, SaveOptions options, QString *errorText) override;
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Okular::AnnotationProxy *annotationProxy() const override;
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bool canSign() const override;
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bool sign(const Okular::NewSignatureData &oData, const QString &rFilename) override;
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Okular::CertificateStore *certificateStore() const override;
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QByteArray requestFontData(const Okular::FontInfo &font) override;
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#if POPPLER_VERSION_MACRO >= QT_VERSION_CHECK(21, 1, 0)
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static void okularToPoppler(const Okular::NewSignatureData &oData, Poppler::PDFConverter::NewSignatureData *pData);
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#endif
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protected:
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SwapBackingFileResult swapBackingFile(QString const &newFileName, QVector<Okular::Page *> &newPagesVector) override;
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bool doCloseDocument() override;
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Okular::TextPage *textPage(Okular::TextRequest *request) override;
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private:
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Okular::Document::OpenResult init(QVector<Okular::Page *> &pagesVector, const QString &password);
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// create the document synopsis hierarchy
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void addSynopsisChildren(const QVector<Poppler::OutlineItem> &outlineItems, QDomNode *parentDestination);
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// fetch annotations from the pdf file and add they to the page
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void addAnnotations(Poppler::Page *popplerPage, Okular::Page *page);
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// fetch the transition information and add it to the page
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void addTransition(Poppler::Page *pdfPage, Okular::Page *page);
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// fetch the poppler page form fields
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QList<Okular::FormField *> getFormFields(Poppler::Page *popplerPage);
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Okular::TextPage *abstractTextPage(const QList<Poppler::TextBox *> &text, double height, double width, int rot);
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void resolveMediaLinkReferences(Okular::Page *page);
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void resolveMediaLinkReference(Okular::Action *action);
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bool setDocumentRenderHints();
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// poppler dependent stuff
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Poppler::Document *pdfdoc;
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void xrefReconstructionHandler();
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// misc variables for document info and synopsis caching
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bool docSynopsisDirty;
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bool xrefReconstructed;
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Okular::DocumentSynopsis docSyn;
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mutable bool docEmbeddedFilesDirty;
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mutable QList<Okular::EmbeddedFile *> docEmbeddedFiles;
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int nextFontPage;
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PopplerAnnotationProxy *annotProxy;
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mutable Okular::CertificateStore *certStore;
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// the hash below only contains annotations that were present on the file at open time
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// this is enough for what we use it for
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QHash<Okular::Annotation *, Poppler::Annotation *> annotationsOnOpenHash;
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QBitArray rectsGenerated;
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QPointer<PDFOptionsPage> pdfOptionsPage;
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};
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#endif
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/* kate: replace-tabs on; indent-width 4; */
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