gfxlink.hxx

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#ifndef INCLUDED_VCL_GFXLINK_HXX
#define INCLUDED_VCL_GFXLINK_HXX

#include <tools/gen.hxx>
#include <vcl/dllapi.h>
#include <vcl/mapmod.hxx>
#include <memory>

class SvStream;

enum class GfxLinkType
{
    NONE         = 0,
    EpsBuffer    = 1,
    NativeGif    = 2,
    NativeJpg    = 3,
    NativePng    = 4,
    NativeTif    = 5,
    NativeWmf    = 6,
    NativeMet    = 7,
    NativePct    = 8,
    NativeSvg    = 9,
    NativeMov    = 10,
    NativeBmp    = 11,
    NativePdf    = 12, // If a new type is added, make sure to change NativeLast too

    // Alias for when the first native type starts and last native
    // type ends.
    NativeFirst  = NativeGif,
    NativeLast   = NativePdf,
};

class Graphic;

class VCL_DLLPUBLIC GfxLink
{
private:
    GfxLinkType     meType;
    sal_uInt32      mnUserId;
    mutable std::shared_ptr<sal_uInt8> mpSwapInData;
    mutable size_t  maHash;
    sal_uInt32      mnSwapInDataSize;
    MapMode         maPrefMapMode;
    Size            maPrefSize;
    bool            mbPrefMapModeValid;
    bool            mbPrefSizeValid;

    SAL_DLLPRIVATE std::shared_ptr<sal_uInt8> GetSwapInData() const;
public:
                        GfxLink();

                        // pBuff = The Graphic data. This class takes ownership of this
                        GfxLink( std::unique_ptr<sal_uInt8[]> pBuf, sal_uInt32 nBufSize, GfxLinkType nType );

    bool                operator==( const GfxLink& ) const;

    GfxLinkType         GetType() const { return meType;}

    size_t              GetHash() const;

    void                SetUserId( sal_uInt32 nUserId ) { mnUserId = nUserId; }
    sal_uInt32          GetUserId() const { return mnUserId; }

    sal_uInt32          GetDataSize() const { return mnSwapInDataSize;}
    const sal_uInt8*    GetData() const;

    const Size&         GetPrefSize() const { return maPrefSize;}
    void                SetPrefSize( const Size& rPrefSize );
    bool                IsPrefSizeValid() const { return mbPrefSizeValid;}

    const MapMode&      GetPrefMapMode() const { return maPrefMapMode;}
    void                SetPrefMapMode( const MapMode& rPrefMapMode );
    bool                IsPrefMapModeValid() const { return mbPrefMapModeValid;}

    bool                IsNative() const;

    bool                LoadNative( Graphic& rGraphic );

    bool                ExportNative( SvStream& rOStream ) const;

    bool                IsEMF() const; // WMF & EMF stored under the same type (NativeWmf)
};

#endif

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