/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */

/*

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 * This Source Code Form is subject to the terms of the Mozilla Public

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#ifndef INCLUDED_VCL_SOURCE_FILTER_IPDF_PDFREAD_HXX

#define INCLUDED_VCL_SOURCE_FILTER_IPDF_PDFREAD_HXX

#include <vector>

#include <tools/gen.hxx>

#include <tools/color.hxx>

#include <vcl/graph.hxx>

#include <basegfx/range/b2drectangle.hxx>

#include <com/sun/star/util/DateTime.hpp>

class SvStream;

namespace com::sun::star::task

{

class XInteractionHandler;

}

namespace vcl::pdf

{

enum class PDFAnnotationSubType;

}

namespace vcl::pdf

{

struct PDFAnnotationMarker;

}

namespace vcl

{

/// Fills the rBitmaps vector with rendered pages.

VCL_DLLPUBLIC size_t RenderPDFBitmaps(const void* pBuffer, int nSize, std::vector<Bitmap>& rBitmaps,

                                      size_t nFirstPage = 0, int nPages = 1,

                                      const basegfx::B2DTuple* pSizeHint = nullptr);

VCL_DLLPUBLIC bool

ImportPDF(SvStream& rStream, Graphic& rGraphic, sal_Int32 nPageIndex,

          const css::uno::Reference<css::task::XInteractionHandler>& xInteractionHandler,

          bool& bEncrypted);

inline bool ImportPDF(SvStream& rStream, Graphic& rGraphic)

{

    bool bEncrypted;

    return ImportPDF(rStream, rGraphic, -1, nullptr, bEncrypted);

}

    // When inserting a PDF file as an image or pasting PDF data from the clipboard, at least on a

    // Retina iMac, the resulting rendered image does not look sharp without this surprisingly large

    // extra scaling factor. Exact reasons unknown. And it isn't enough to have it be just 2 (which is

    // the actual Retina factor on my iMac). Possibly the fuzziness is related to what Pdfium uses to

    // render text.

    // Also, look at CountDPIScaleFactor() in vcl/source/window/window.cxx. The GetDPIScaleFactor() API

    // lies on macOS even more than it does on other platforms, it claims that the DPI scale factor is

    // always 1. But in fact most Macs nowadays have a HiDPI ("Retina") display. But we can't just "fix"

    // things by making GetDPIScaleFactor() always return 2 on macOS, even if that wouldn't be any more

    // wrong, because that then causes other regressions that I have no time to look into now.

#ifdef MACOSX

constexpr int PDF_INSERT_MAGIC_SCALE_FACTOR = 8;

#else

constexpr int PDF_INSERT_MAGIC_SCALE_FACTOR = 1;

#endif

struct PDFGraphicAnnotation

{

    OUString maAuthor;

    OUString maText;

    basegfx::B2DRectangle maRectangle; // In HMM

    css::util::DateTime maDateTime;

    Color maColor;

    pdf::PDFAnnotationSubType meSubType;

    std::shared_ptr<pdf::PDFAnnotationMarker> mpMarker;

};

class PDFGraphicResult

{

    Graphic maGraphic;

    // Size in HMM

    Size maSize;

    std::vector<PDFGraphicAnnotation> maAnnotations;

    std::vector<std::pair<basegfx::B2DRectangle, OUString>> maLinksInfo;

public:

    PDFGraphicResult(Graphic aGraphic, Size const& rSize,

                     std::vector<PDFGraphicAnnotation> aAnnotations,

                     std::vector<std::pair<basegfx::B2DRectangle, OUString>> aLinks)

        : maGraphic(std::move(aGraphic))

        , maSize(rSize)

        , maAnnotations(std::move(aAnnotations))

        , maLinksInfo(std::move(aLinks))

    {

    }

    const Graphic& GetGraphic() const { return maGraphic; }

    const Size& GetSize() const { return maSize; }

    const std::vector<PDFGraphicAnnotation>& GetAnnotations() const { return maAnnotations; }

    const std::vector<std::pair<basegfx::B2DRectangle, OUString>>& GetLinksInfo() const

    {

        return maLinksInfo;

    }

};

/// Import PDF as Graphic images (1 per page), but not loaded yet.

/// Returns the number of pages read.

VCL_DLLPUBLIC size_t ImportPDFUnloaded(const OUString& rURL,

                                       std::vector<PDFGraphicResult>& rGraphics);

VCL_DLLPUBLIC size_t ImportPDFUnloaded(SvStream& rStream, std::vector<PDFGraphicResult>& rGraphics);

}

#endif // INCLUDED_VCL_SOURCE_FILTER_IPDF_PDFREAD_HXX

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