vectorgraphicdata.hxx

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#ifndef INCLUDED_VCL_VECTORGRAPHICDATA_HXX
#define INCLUDED_VCL_VECTORGRAPHICDATA_HXX

#include <basegfx/range/b2drange.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include <vcl/bitmapex.hxx>
#include <rtl/ustring.hxx>
#include <deque>
#include <memory>

namespace com { namespace sun { namespace star { namespace graphic { class XPrimitive2D; } } } }
struct WmfExternal;

typedef css::uno::Sequence<sal_Int8> VectorGraphicDataArray;


// helper to convert any Primitive2DSequence to a good quality BitmapEx,
// using default parameters and graphic::XPrimitive2DRenderer

BitmapEx VCL_DLLPUBLIC convertPrimitive2DSequenceToBitmapEx(
    const std::deque< css::uno::Reference< css::graphic::XPrimitive2D > >& rSequence,
    const basegfx::B2DRange& rTargetRange,
    const sal_uInt32 nMaximumQuadraticPixels = 500000);


enum class VectorGraphicDataType
{
    Svg = 0,
    Emf = 1,
    Wmf = 2,
    Pdf = 3
};

class VCL_DLLPUBLIC VectorGraphicData
{
private:
    // the file and length
    VectorGraphicDataArray      maVectorGraphicDataArray;

    // The absolute Path if available
    OUString                    maPath;

    // on demand created content
    bool                        mbSequenceCreated;
    basegfx::B2DRange           maRange;
    std::deque< css::uno::Reference< css::graphic::XPrimitive2D > > maSequence;
    BitmapEx                    maReplacement;
    size_t                      mNestedBitmapSize;
    VectorGraphicDataType       meVectorGraphicDataType;

    // extra:
    std::unique_ptr<WmfExternal> mpExternalHeader;

    // If the vector format has more pages this denotes which page to render
    sal_Int32 mnPageIndex;

    // on demand creators
    void ensurePdfReplacement();
    void ensureReplacement();
    void ensureSequenceAndRange();

    VectorGraphicData(const VectorGraphicData&) = delete;
    VectorGraphicData& operator=(const VectorGraphicData&) = delete;

public:
    VectorGraphicData(
        const VectorGraphicDataArray& rVectorGraphicDataArray,
        const OUString& rPath,
        VectorGraphicDataType eVectorDataType,
        sal_Int32 nPageIndex = -1);
    VectorGraphicData(const OUString& rPath, VectorGraphicDataType eVectorDataType);
    ~VectorGraphicData();

    bool operator==(const VectorGraphicData& rCandidate) const;

    void setWmfExternalHeader(const WmfExternal& aExtHeader);

    const VectorGraphicDataArray& getVectorGraphicDataArray() const { return maVectorGraphicDataArray; }
    sal_uInt32 getVectorGraphicDataArrayLength() const { return maVectorGraphicDataArray.getLength(); }
    enum class State { UNPARSED, PARSED };
    std::pair<State, size_t> getSizeBytes() const;
    const OUString& getPath() const { return maPath; }
    const VectorGraphicDataType& getVectorGraphicDataType() const { return meVectorGraphicDataType; }

    const basegfx::B2DRange& getRange() const;
    const std::deque< css::uno::Reference< css::graphic::XPrimitive2D > >& getPrimitive2DSequence() const;
    const BitmapEx& getReplacement() const;
    BitmapChecksum GetChecksum() const;

    sal_Int32 getPageIndex() const { return mnPageIndex; }

    bool isPrimitiveSequenceCreated() const { return mbSequenceCreated; }
};

typedef std::shared_ptr< VectorGraphicData > VectorGraphicDataPtr;

#endif // INCLUDED_VCL_VECTORGRAPHICDATA_HXX

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