pdfread.hxx

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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/stream.hxx>
#include <tools/color.hxx>
#include <vcl/graph.hxx>
#include <basegfx/range/b2drectangle.hxx>
#include <com/sun/star/util/DateTime.hpp>
 
#include <vcl/pdf/PDFAnnotationSubType.hxx>
#include <vcl/pdf/PDFAnnotationMarker.hxx>
 
namespace com::sun::star::uno
{
template <typename> class Sequence;
}
class Bitmap;
 
namespace vcl
{
VCL_DLLPUBLIC size_t RenderPDFBitmaps(const void* pBuffer, int nSize,
                                      std::vector<BitmapEx>& rBitmaps, size_t nFirstPage = 0,
                                      int nPages = 1, const basegfx::B2DTuple* pSizeHint = nullptr);
 
VCL_DLLPUBLIC bool
importPdfVectorGraphicData(SvStream& rStream,
                           std::shared_ptr<VectorGraphicData>& rVectorGraphicData);
 
VCL_DLLPUBLIC bool ImportPDF(SvStream& rStream, Graphic& rGraphic);
 
// 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;
 
public:
    PDFGraphicResult(Graphic aGraphic, Size const& rSize,
                     std::vector<PDFGraphicAnnotation> aAnnotations)
        : maGraphic(std::move(aGraphic))
        , maSize(rSize)
        , maAnnotations(std::move(aAnnotations))
    {
    }
 
    const Graphic& GetGraphic() const { return maGraphic; }
    const Size& GetSize() const { return maSize; }
    const std::vector<PDFGraphicAnnotation>& GetAnnotations() const { return maAnnotations; }
};
 
VCL_DLLPUBLIC size_t ImportPDFUnloaded(const OUString& rURL,
                                       std::vector<PDFGraphicResult>& rGraphics);
}
 
#endif // INCLUDED_VCL_SOURCE_FILTER_IPDF_PDFREAD_HXX
 
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